SB20260721109 - Ubuntu update for linux

Description

This security bulletin contains information about 446 vulnerabilities.

1) Improper privilege management (CVE-ID: CVE-2025-54518)

CWE-ID: CWE-269 - Improper Privilege Management

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper privilege management in x86 CPU opcode cache handling when executing code on affected AMD Fam17h CPUs. A local user can execute code to escalate privileges.

The issue can permit escalation across privilege boundaries including userspace to kernel and guest to host, and only AMD Fam17h CPUs based on the Zen2 microarchitecture are believed to be affected.

2) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-53365)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in virtio vsock zerocopy completion handling in net/vmw_vsock/virtio_transport_common.c when processing multi-skb MSG_ZEROCOPY sends. A local user can send a large crafted message that is fragmented into multiple skbs to cause a denial of service.

The issue can leave pinned user pages without completion notification, including when the send loop exits before the final skb is processed.

3) Memory leak (CVE-ID: CVE-2026-53364)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in hci_le_big_terminate() in the bluetooth hci connection handling component when terminating BIG synchronization state. A local user can trigger the affected code path to cause a denial of service.

The issue occurs on an early-return path when neither PA sync termination nor BIG sync termination flags are set.

4) Out-of-bounds write (CVE-ID: CVE-2026-53360)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to corrupt host kernel heap memory and disclose host heap layout information.

The vulnerability exists due to an out-of-bounds read and out-of-bounds write in KVM SEV handling in arch/x86/kvm/svm/sev.c when processing guest-controlled Page State Change requests with a scratch buffer allocated outside the GHCB shared buffer under GHCB v2+. A local user can supply crafted PSC metadata that causes the host to iterate past the allocated scratch buffer to corrupt host kernel heap memory and disclose host heap layout information.

Exploitation requires a malicious SEV-SNP guest, and the issue may also trigger use-after-free conditions across repeated VMGEXITs.

5) Improper locking (CVE-ID: CVE-2026-53358)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in l2cap_sock_cleanup_listen() when cleaning up listening L2CAP channels. A local user can trigger a race condition to cause a denial of service.

The issue involves incorrect lock ordering between conn->lock, chan->lock, and sk_lock during Bluetooth L2CAP channel cleanup.

6) Use-after-free (CVE-ID: CVE-2026-53357)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in l2cap_sock_cleanup_listen() and bt_accept_dequeue() in the Bluetooth L2CAP socket handling code when racing listen socket cleanup with a concurrent HCI disconnect. A local user can trigger a listen/close versus HCI-disconnect race to cause a denial of service.

The issue occurs during cleanup of not-yet-accepted child sockets on a listening socket.

7) NULL pointer dereference (CVE-ID: CVE-2026-53324)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the mana debugfs directory creation logic when creating per-device debugfs directories for virtual functions. A local user can trigger device initialization in an environment where pdev->slot is NULL to cause a denial of service.

The issue can occur in environments such as generic VFIO passthrough or nested KVM.

8) Improper locking (CVE-ID: CVE-2026-53323)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper lock handling in the DSA conduit ethtool wrappers when handling ethtool operations. A local user can invoke ethtool on the affected interface to cause a denial of service.

9) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53322)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to access device BAR resources after device shutdown, potentially leading to disclosure of sensitive information, modification of data, or a denial of service.

The vulnerability exists due to improper resource shutdown sequencing in vfio_pci_core_close_device() when closing a device while DMABUF access remains active. A local user can keep accessing the device through DMABUF mappings during the shutdown window to access device BAR resources after device shutdown, potentially leading to disclosure of sensitive information, modification of data, or a denial of service.

The issue occurs in a small window after memory space enable is cleared and before DMABUF access is revoked, while the resources may be reassigned to a different driver.

10) Resource exhaustion (CVE-ID: CVE-2026-53321)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in io_uring napi busy polling when polling for events with no events found. A local user can trigger repeated busy polling to cause a denial of service.

The issue can lead to kernel complaints about a task being stuck because the polling loop lacks conditional rescheduling.

11) Improper input validation (CVE-ID: CVE-2026-53320)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in nilfs_ioctl_mark_blocks_dirty() when processing a crafted ioctl request. A local user can send a crafted ioctl request with bd_oblocknr set to 0 to cause a denial of service.

The issue can reach a WARN_ON path after a lookup returns -ENOENT and sets the compared block number to 0.

12) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-53319)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of expected error conditions in wbt_init_enable_default() when processing ioctl(BLKPG) requests during MTD partition creation. A local user can trigger memory allocation failures to cause a denial of service.

The issue results in a spurious kernel warning and stack trace rather than memory corruption.

13) NULL pointer dereference (CVE-ID: CVE-2026-53318)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in mt7925_tx_check_aggr() when processing transmit aggregation state. A local attacker can trigger the vulnerable code path to cause a denial of service.

14) Improper input validation (CVE-ID: CVE-2026-53317)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the mt7921 wifi driver when handling station association identifiers on IFTYPE_AP interfaces. A local user can configure a station with an out-of-range AID value to cause a denial of service.

The issue was observed on 7922 hardware and only on IFTYPE_AP interfaces; IFTYPE_STATION behavior was not reported as affected.

15) NULL pointer dereference (CVE-ID: CVE-2026-53316)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in ras_core_ras_interrupt_detected() when handling an error path with a null ras_core pointer. A local attacker can trigger the vulnerable error path to cause a denial of service.

16) NULL pointer dereference (CVE-ID: CVE-2026-53315)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in ras_core_get_utc_second_timestamp() in the AMD RAS subsystem when handling an invalid ras_core pointer. A local user can trigger the vulnerable code path to cause a denial of service.

17) Race condition (CVE-ID: CVE-2026-53314)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the padata CPU hotplug callback handling when offlining a CPU. A local user can trigger CPU hotplug operations to cause a denial of service.

The issue occurs because the CPU offline callback was placed in a hotplug teardown state where failure is not allowed.

18) NULL pointer dereference (CVE-ID: CVE-2026-53313)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in dc_dmub_srv_log_diagnostic_data() and dc_dmub_srv_enable_dpia_trace() when handling error paths. A local user can trigger the vulnerable code path to cause a denial of service.

19) Integer overflow (CVE-ID: CVE-2026-53312)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an integer overflow in the RISC-V IOMMU invalidation path when processing invalidation ranges with a gather end value of ULONG_MAX. A local user can trigger the overflow condition to cause a denial of service.

20) Use of Uninitialized Variable (CVE-ID: CVE-2026-53311)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use of uninitialized memory in fuse_dentry_revalidate() when handling dentry revalidation during file open operations. A local user can trigger file open paths involving a dentry with an uninitialized d_time value to cause a denial of service.

The issue was identified by KMSAN and occurs when a dentry allocated by __d_alloc() is revalidated before d_time is initialized.

21) Improper Validation of Array Index (CVE-ID: CVE-2026-53310)

CWE-ID: CWE-129 - Improper Validation of Array Index

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to improper access of indexable resource location in tegra234_sw_lookup_target_timeout() when handling error interrupts for a different fabric. A local attacker can trigger a cross-fabric error condition to cause a denial of service.

The issue can lead to a kernel page fault during target timeout lookup.

22) Out-of-bounds read (CVE-ID: CVE-2026-53309)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to disclose sensitive information, modify data, or cause a denial of service.

The vulnerability exists due to an out-of-bounds read in dlm_match_regions() when comparing local and remote regions. A remote attacker can trigger the vulnerable region comparison to disclose sensitive information, modify data, or cause a denial of service.

23) Use-after-free (CVE-ID: CVE-2026-53308)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to use-after-free in the max77705 power supply driver workqueue handling when processing an interrupt during driver probe error handling or device removal. A local user can trigger an interrupt in this time window to execute arbitrary code.

The issue occurs because the interrupt handler can schedule work after the workqueue has already been destroyed but before the interrupt handler is freed.

24) Improper input validation (CVE-ID: CVE-2026-53307)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in pinconf_generic_parse_dt_pinmux() when parsing the 'pinmux' property. A local user can provide an empty 'pinmux' property to cause a denial of service.

25) Off-by-one (CVE-ID: CVE-2026-53306)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in hvc_iucv_get_private() in the hvc_iucv driver when handling a device index equal to the number of configured devices. A local user can trigger an off-by-one access to cause a denial of service.

The issue occurs because the bounds check permits access to hvc_iucv_table[8] when hvc_iucv_devices is 8.

26) NULL pointer dereference (CVE-ID: CVE-2026-53305)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in ps883x_retimer_remove() when unbinding a device from its driver. A local user can trigger device unbinding to cause a denial of service.

27) Improper input validation (CVE-ID: CVE-2026-53304)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local privileged user to cause a denial of service.

The vulnerability exists due to improper input validation in the sg driver def_reserved_size module parameter handling when opening /dev/sgX after assigning an invalid value to the parameter. A local privileged user can write a negative or oversized value to the def_reserved_size sysfs parameter and then open a sg device node to cause a denial of service.

28) Out-of-bounds read (CVE-ID: CVE-2026-53303)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in f2fs_sbi_show() when reading the extension_list during sysfs access concurrent with extension list updates. A local user can trigger concurrent sysfs operations to cause a denial of service.

The issue may also result in stale data being displayed.

29) NULL pointer dereference (CVE-ID: CVE-2026-53302)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper algorithm selection in eip93_hmac_setkey() in the EIP93 crypto driver when processing AEAD setkey operations. A local user can trigger a failed setkey operation to cause a denial of service.

A subsequent crypto operation may dereference a NULL pointer in the request context and panic the kernel after the SA record is left partially initialized with zeroed digest fields.

30) NULL pointer dereference (CVE-ID: CVE-2026-53301)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the amlogic t7 reset driver when handling reset operations. A local user can trigger the vulnerable code path to cause a denial of service.

The issue affects a SoC reset implementation that is not currently used yet.

31) Use-after-free (CVE-ID: CVE-2026-53300)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free in the enetc NTMP command handling path when processing timed-out NTMP commands and reclaiming DMA buffers. A local user can trigger a command timeout and concurrent buffer reuse to execute arbitrary code.

The issue can result in silent memory corruption because hardware may later perform a DMA write to the physical address of a freed buffer.

32) NULL pointer dereference (CVE-ID: CVE-2026-53299)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in airoha_qdma_cleanup_tx_queue() when handling a failed queue entry list allocation in airoha_qdma_init_tx_queue(). A local user can trigger queue initialization failure to cause a denial of service.

33) NULL pointer dereference (CVE-ID: CVE-2026-53298)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in airoha_qdma_cleanup() when cleaning up a partially initialized RX queue after allocation failures in airoha_qdma_init_rx_queue(). A local user can trigger queue initialization failure to cause a denial of service.

The issue occurs because RX queue NAPI cleanup may be performed even though netif_napi_add() was never executed for the affected queue.

34) NULL pointer dereference (CVE-ID: CVE-2026-53297)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in mana_remove() when handling a second invocation after a failed PM resume callback. A local user can trigger device unbind after a failed resume path to cause a denial of service.

The issue occurs because a failed resume callback does not automatically unbind the driver, allowing mana_remove() to be invoked again later.

35) Use-after-free (CVE-ID: CVE-2026-53296)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the mailbox-test driver when handling probe errors. A local user can trigger a probe error to cause a denial of service.

The issue occurs because previously obtained channels are not freed before the client structure is removed.

36) NULL pointer dereference (CVE-ID: CVE-2026-53295)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the mailbox controller channel array handling when initializing a mailbox controller without an attached channel array. A local user can trigger initialization of a mailbox controller in this state to cause a denial of service.

37) Double free (CVE-ID: CVE-2026-53294)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free in mailbox-test channel handling when freeing reused channels. A local user can trigger the mailbox-test logic with an aliased RX and TX channel configuration to cause a denial of service.

The issue occurs in the special case where the RX channel is aliased to the TX channel with different MMIO.

38) Improper locking (CVE-ID: CVE-2026-53293)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in AMDGPU_INFO_READ_MMR_REG in amdgpu_kms.c when handling ioctl requests to read MMR registers. A local user can issue a crafted ioctl request to cause a denial of service.

The issue involves incorrect ordering between the reset semaphore and mm_lock, allocation while holding the reset semaphore, and failure to wait for reset completion.

39) Improper handling of exceptional conditions (CVE-ID: CVE-2026-53292)

CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper exception handling in pn_socket_autobind() in net/phonet/socket.c when handling socket autobind during send operations. A local user can trigger a failed bind condition that reaches a BUG_ON() assertion to cause a denial of service.

The issue is reachable from a user-triggerable path and can panic the kernel when pn_socket_bind() returns -EINVAL while the socket port remains unset.

40) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-53291)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper exception handling in cx_probe() in the ALSA hda/conexant driver when enabling the jack detection callback. A local user can trigger the vulnerable driver path to cause a denial of service.

The issue can lead to a kernel crash when jack events are later handled after callback registration fails.

41) Use-after-free (CVE-ID: CVE-2026-53290)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to execute arbitrary code or cause a denial of service.

The vulnerability exists due to use-after-free in xe_eu_stall_stream_close() when closing an eu stall stream. A local user can trigger the close path to execute arbitrary code or cause a denial of service.

42) NULL pointer dereference (CVE-ID: CVE-2026-53289)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in ice_reset_all_vfs() when handling a failed VSI rebuild during VF reset processing. A local user can trigger a failed VSI rebuild state and cause a denial of service.

The issue can occur during NVM firmware update while the firmware is in a transitional state and Admin Queue commands fail.

43) Memory corruption (CVE-ID: CVE-2026-53288)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper memory mapping in early kernel mapping when initializing arm64 kernel segment page tables. A local user can trigger the vulnerable boot-time mapping condition to cause a denial of service.

The issue affects arm64 systems using 4K pages during early boot.

44) Insufficient Logging (CVE-ID: CVE-2026-53287)

CWE-ID: CWE-778 - Insufficient Logging

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to conceal capability changes in audit records.

The vulnerability exists due to incorrect data recording in __audit_log_capset() in the audit subsystem when logging CAPSET operations. A local user can modify inheritable capabilities to conceal capability changes in audit records.

This can mask preparation for a privilege-escalating exec in audit data used for compliance and forensic analysis.

45) Double free (CVE-ID: CVE-2026-53286)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free and use-after-free in idpf auxiliary device error paths when handling auxiliary device add failures. A local user can trigger a failure during auxiliary device initialization to cause a denial of service.

The issue occurs in the probe error paths of idpf_plug_vport_aux_dev() and idpf_plug_core_aux_dev().

46) Resource exhaustion (CVE-ID: CVE-2026-53285)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in dcn32_enable_phantom_plane() when allocating phantom plane state during bandwidth validation. A local user can trigger allocation of a large dc_plane_state object to cause a denial of service.

The issue can lead to a kernel crash when memory allocation reaches the vmalloc path in a preemption-restricted context.

47) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53284)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper state management in btrfs_write_and_wait_transaction() and the dirty_pages io tree when handling failed transaction writeback. A remote attacker can trigger write errors that cause dirty extent buffer records to be released prematurely to cause a denial of service.

The issue can leave dirty extent buffers uncleared during transaction cleanup and trigger warnings during filesystem unmount.

48) Out-of-bounds read (CVE-ID: CVE-2026-53283)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in __rlookup_amd_iommu() when registering and probing PCI devices during boot. A local attacker can present a PCI device whose BDF is not described by the IVRS to cause a denial of service.

The issue can lead to a boot-time general protection fault when adjacent slab contents are dereferenced as a struct amd_iommu *.

49) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-53282)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of a missing return address in x86 kexec purgatory code when processing a non-kjump kexec. A local user can trigger a non-kjump kexec to cause a denial of service.

The issue can cause purgatory to crash by attempting to access a return address above the top of its stack.

50) Use-after-free (CVE-ID: CVE-2026-53281)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service or execute arbitrary code.

The vulnerability exists due to a NULL pointer dereference and use-after-free in the Intel VT-d IOMMU PASID teardown logic when detaching a domain that was not attached to the IOMMU or when a PASID entry is not found. A local user can trigger teardown operations on an invalid or missing PASID association to cause a denial of service or execute arbitrary code.

The issue can also corrupt reference counts, which may prematurely drop a shared domain reference to zero for remaining active devices.

51) NULL pointer dereference (CVE-ID: CVE-2026-53280)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in pci_dev_reset_iommu_done() when re-attaching a RID domain after device reset. A local user can trigger device reset handling to cause a denial of service.

The issue occurs when default domain allocation fails during the first probe, leaving group->domain uninitialized.

52) Improper resource shutdown or release (CVE-ID: CVE-2026-53279)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the oaktrail LVDS initialization code when handling an initialization failure after obtaining an I2C adapter reference. A local user can trigger device initialization failure to cause a denial of service.

The issue can cause the kernel to hang indefinitely while waiting for an I2C adapter reference to be released.

53) NULL pointer dereference (CVE-ID: CVE-2026-53278)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in __destroy_component_cfg() in the arm mpam subsystem when disabling mpam before the configuration array has been allocated. A local user can trigger the vulnerable code path to cause a denial of service.

54) Race condition (CVE-ID: CVE-2026-53277)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in arm64 KVM page table walk handling when performing fault injection and address translation emulation. A local user can trigger page table walks without the required SRCU protection to cause a denial of service.

The issue affects calls to __kvm_at_s12() and __kvm_find_s1_desc_level() that invoke nested stage-2 and stage-1 walkers without holding kvm->srcu.

55) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-53174)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper error handling in ovl_iterate_merged() in fs/overlayfs/readdir.c when processing readdir operations on overlay-on-overlay directories. A local user can trigger nested directory iteration to cause a denial of service.

The issue is reachable through overlay-on-overlay readdir via getdents64.

56) Out-of-bounds write (CVE-ID: CVE-2026-53130)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to overwrite kernel memory.

The vulnerability exists due to an out-of-bounds write in omfs_make_empty() when processing a crafted OMFS filesystem image with s_sys_blocksize smaller than OMFS_DIR_START. A local user can mount a specially crafted filesystem image to overwrite kernel memory.

The issue is caused by an unsigned underflow in the length argument passed to memset().

57) Use-after-free (CVE-ID: CVE-2026-53129)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local privileged user to cause a denial of service.

The vulnerability exists due to use-after-free in mb_cache_destroy() and mb_cache_shrink_worker() when destroying an mbcache instance while scheduled shrink work is pending or running. A local privileged user can trigger the last put of a mounted ext2, ext4, or ocfs2 filesystem to cause a denial of service.

The issue is only reachable when the attacker can trigger teardown of the cache for a mounted filesystem.

58) Race condition (CVE-ID: CVE-2026-53128)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in drbd_adm_dump_devices() and drbd_adm_dump_peer_devices() when handling netlink dump requests with a resource filter. A local user can send a specially crafted netlink request to cause a denial of service.

59) Improper resource shutdown or release (CVE-ID: CVE-2026-53127)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in blk_revalidate_disk_zones() in block/blk-zoned.c when handling zone revalidation errors. A local user can trigger a zone revalidation failure to cause a denial of service.

60) Improper resource shutdown or release (CVE-ID: CVE-2026-53126)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in blkcg_maybe_throttle_current() when handling block cgroup throttling lookups and error paths. A local user can trigger lookup or reference acquisition failures to cause a denial of service.

The issue results from a disk reference leak that can prevent the disk object from being freed.

61) Improper locking (CVE-ID: CVE-2026-53125)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper lock handling in md_attr_store() when processing a write of "clear" to the array_state sysfs attribute. A local user can write "clear" to the array_state sysfs entry to cause a denial of service.

The issue is triggered during md array teardown from the sysfs write path and results in recursive locking on kn->active.

62) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53124)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the ublk driver when recovering devices and fetching I/O commands. A local user can cause a ublk server to die after only a subset of I/Os in a queue have been fetched to cause a denial of service.

The issue occurs because per-I/O canceled flags can remain set for fetched I/Os if recovery stops before all I/Os in the queue are fetched, preventing outstanding commands from being completed during cancellation.

63) Improper locking (CVE-ID: CVE-2026-53123)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in the raid456 reshape handling in the md subsystem when suspending an md device during direct I/O across the reshape position. A local user can freeze reshape and write md/suspend_lo or md/suspend_hi to trigger a deadlock and cause a denial of service.

The issue occurs because I/O can wait for reshape progress while still holding an active_io reference, preventing suspend from completing if reshape is already frozen or interrupted.

64) Deadlock (CVE-ID: CVE-2026-53122)

CWE-ID: CWE-833 - Deadlock

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a deadlock condition in the btrfs reflink operation when processing reflink operations with the flushoncommit mount option enabled. A local user can trigger a reflink of an inline extent to an offset beyond the destination inode size to cause a denial of service.

Exploitation requires the flushoncommit mount option and a reflink operation that copies an inline extent beyond the current i_size of the destination inode.

65) Memory leak (CVE-ID: CVE-2026-53121)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in amd_pstate_epp_cpu_init() when initializing CPU EPP settings. A local user can trigger an error path to cause a denial of service.

66) Use-after-free (CVE-ID: CVE-2026-53120)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the pci driver matching logic when probing a driver through __driver_attach__(). A local user can trigger concurrent access to the driver_override field to cause a denial of service.

The issue occurs because the bus match callback accesses driver_override without the device lock held.

67) Use-after-free (CVE-ID: CVE-2026-53119)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the wmi driver_override handling in the WMI bus match callback when probing a driver through __driver_attach(). A local user can trigger driver matching to cause a denial of service.

68) Use-after-free (CVE-ID: CVE-2026-53118)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the vdpa driver_override handling in the vDPA bus match callback when probing a driver through __driver_attach(). A local user can trigger driver matching while the driver_override field is accessed without the device lock to cause a denial of service.

The issue occurs because the bus match callback is invoked without the device lock held during this code path.

69) Use-after-free (CVE-ID: CVE-2026-53117)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the s390 cio driver_override handling when probing a driver through __driver_attach__(). A local user can trigger driver matching on a device with a stale driver_override reference to cause a denial of service.

The issue occurs because the bus match callback may access driver_override without the device lock held.

70) Use-after-free (CVE-ID: CVE-2026-53116)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the AP bus driver_override handling in drivers/s390/crypto/ap_bus.c and drivers/s390/crypto/ap_queue.c when updating AP masks concurrently with driver_override sysfs operations. A local user can trigger concurrent driver_override changes and AP mask updates to cause a denial of service.

Exploitation requires access to local sysfs interfaces that modify AP mask or driver override settings.

71) Use-after-free (CVE-ID: CVE-2026-53115)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the fsl-mc bus driver_override handling when matching drivers during device probing. A local user can trigger driver matching on a device with a stale driver_override reference to cause a denial of service.

The issue occurs because the match callback may access driver_override without the device lock held during __driver_attach().

72) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-53114)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of a function call in the amd ibs nmi handler when processing perf events. A local user can create a perf event that triggers the unsafe call from nmi context to cause a denial of service.

The issue occurs when raw sampling is used for IBS perf events.

73) Improper resource shutdown or release (CVE-ID: CVE-2026-53113)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in ath11k beacon template setup functions when handling error paths during beacon template setup. A local user can trigger error conditions in beacon template setup to cause a denial of service.

The issue affects the ath11k driver code paths in ath11k_mac_setup_bcn_tmpl_ema() and ath11k_mac_setup_bcn_tmpl_mbssid().

74) Use-after-free (CVE-ID: CVE-2026-53112)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in irq_prepare_bcn_tasklet in the rtlwifi PCI driver when handling beacon interrupts during device probe failure or device detachment. A local user can trigger the affected code path to cause a denial of service.

The issue occurs because a pending or running tasklet may access a freed ieee80211_hw object.

75) NULL pointer dereference (CVE-ID: CVE-2026-53111)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in bpf_lwt_xmit_push_encap when executing BPF LWT_XMIT programs through bpf_prog_test_run_skb with an uninitialized skb destination reference. A local user can execute a crafted BPF program test run to cause a denial of service.

76) Incorrect Conversion between Numeric Types (CVE-ID: CVE-2026-53110)

CWE-ID: CWE-681 - Incorrect Conversion between Numeric Types

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause incorrect behavior in kernel BPF processing.

The vulnerability exists due to improper handling of integer extension in the s390 BPF JIT compiler when processing BPF program return values and kfunc arguments. A local user can trigger the JIT compilation of crafted BPF code to cause incorrect behavior in kernel BPF processing.

The issue affects s390 systems because the ABI requires zero extension for unsigned arguments and return values, but only sign extension was implemented.

77) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53109)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in pte_frag_destroy when freeing cached page table fragments during process exit. A local user can trigger process exit with a crafted memory state to cause a denial of service.

The issue affects the powerpc page table fragment handling path for hash with 64K page size and can occur in a corner case involving deferred PTE table freeing in parallel with do_exit().

78) Race condition (CVE-ID: CVE-2026-53108)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in powerpc PMD huge page handling when unmapping memory during PMD page migration or device-private THP entry handling. A local user can trigger concurrent move_pages() and munmap() operations to cause a denial of service.

The issue can lead to a kernel BUG in pmdp_huge_get_and_clear_full() on powerpc/64s systems.

79) Improper locking (CVE-ID: CVE-2026-53107)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of urb cancellation in drivers/net/wireless/marvell/libertas/if_usb.c when processing usb transmit requests in interrupt context. A local user can trigger transmission while a previous urb is still pending to cause a denial of service.

The issue occurs because the transmit path may be reached from interrupt context, where sleeping is not allowed.

80) Improper locking (CVE-ID: CVE-2026-53106)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of local storage deletion in bpf local storage helpers when deleting local storage from an nmi context. A local user can trigger bpf_xxx_storage_delete() helpers to cause a denial of service.

The issue affects helper and syscall paths that reach bpf_selem_unlink().

81) NULL pointer dereference (CVE-ID: CVE-2026-53105)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in mt7925_mac_write_txwi when handling transmission metadata with an uninitialized vif pointer. A local user can trigger the vulnerable code path to cause a denial of service.

The issue may lead to a kernel panic.

82) Memory leak (CVE-ID: CVE-2026-53104)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in the mt76 dma rx queue cleanup logic when destroying the device during module unload. A local user can trigger device cleanup to cause a denial of service.

The issue affects MT76 rx queues, including WED RRO queues that have an associated page_pool even when not associated to a NAPI.

83) Deadlock (CVE-ID: CVE-2026-53103)

CWE-ID: CWE-833 - Deadlock

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a deadlock condition in mt7925_roc_abort_sync when canceling roc_work during station removal while the work item is still running and holding dev->mt76.mutex. A local user can trigger station removal to cause a denial of service.

84) Memory leak (CVE-ID: CVE-2026-53102)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in the mt76 wireless driver MCU request handling code when processing error paths after allocating an skb. A local user can trigger an intermediate failure to cause a denial of service.

85) Deadlock (CVE-ID: CVE-2026-53101)

CWE-ID: CWE-833 - Deadlock

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a deadlock condition in mt7921_roc_abort_sync when canceling roc_work during station removal. A local user can trigger station removal while roc_work is running to cause a denial of service.

86) Deadlock (CVE-ID: CVE-2026-53100)

CWE-ID: CWE-833 - Deadlock

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a deadlock in the mt76 remain-on-channel handling in drivers/net/wireless/mediatek/mt76/channel.c when invoking remain-on-channel operations while dev->mutex is already held. A local user can trigger remain-on-channel processing to cause a denial of service.

87) Insufficient Control Flow Management (CVE-ID: CVE-2026-53099)

CWE-ID: CWE-691 - Insufficient Control Flow Management

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper control flow management in btf_check_dtor_kfuncs in kernel/bpf/btf.c when processing BPF type information for destructor kfuncs. A local user can trigger a CFI failure to cause a denial of service.

88) Use-after-free (CVE-ID: CVE-2026-53098)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in mt7915_mac_dump_work() when processing queued dump work during device detachment. A local user can trigger device recovery while the device removal path is freeing crash_data to cause a denial of service.

The issue is caused by a race condition between the removal path and a workqueue handler.

89) Use-after-free (CVE-ID: CVE-2026-53097)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in mt7996_mac_dump_work() when processing queued dump work during device detachment. A local user can trigger the race condition to cause a denial of service.

The issue occurs when the work item is still running or pending while crash_data has already been released.

90) Race condition (CVE-ID: CVE-2026-53096)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an improper use of RCU-safe iteration in dev_map_redirect_multi() and dev_map_enqueue_multi() when processing BPF devmap hash buckets under RCU protection. A local user can trigger concurrent updates and lookups to cause a denial of service.

On weakly ordered architectures, readers may observe a partially constructed node.

91) Improper access control (CVE-ID: CVE-2026-53095)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to modify kernel function arguments.

The vulnerability exists due to improper access control in the BPF kprobe and freplace program attachment logic when attaching a freplace program to a kprobe program with mismatched kprobe_write_ctx values. A local user can attach a crafted freplace program to a kprobe program to modify struct pt_regs and modify kernel function arguments.

This issue arises because uprobe programs use the KPROBE program type, enabling abuse of kprobe_write_ctx through the kprobe+freplace combination.

92) Use-after-free (CVE-ID: CVE-2026-53094)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the BPF offload program pointer handling in kernel/bpf/core.c when destroying a network namespace after JIT compilation with constant blinding enabled for a dev-bound-only BPF program. A local user can trigger cleanup of a crafted dev-bound-only XDP program to cause a denial of service.

Exploitation requires net.core.bpf_jit_harden to be set to 2 or higher and affects dev-bound-only programs created with BPF_F_XDP_DEV_BOUND_ONLY.

93) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-53093)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper check for exceptional conditions in brcmf_chip_recognition() in the brcmfmac driver when processing error returns from brcmf_chip_add_core(). A local user can trigger the vulnerable code path to cause a denial of service.

94) Improper input validation (CVE-ID: CVE-2026-53092)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass the BPF verifier's safety checks.

The vulnerability exists due to improper input validation in the BPF verifier when processing BPF add or subtract operations where the source and destination register are the same. A local user can load a crafted BPF program to bypass the BPF verifier's safety checks.

The issue stems from incorrect delta tracking for linked registers, which can create a verifier-versus-runtime mismatch.

95) Improper input validation (CVE-ID: CVE-2026-53091)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper validation of gso packet headers in qdisc_pkt_len_segs_init() when processing malicious gso packets. A remote attacker can send a specially crafted packet to cause a denial of service.

The issue affects the transmit path for gso packets and malformed packets may be dropped during processing.

96) Improper access control (CVE-ID: CVE-2026-53090)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass BPF verifier checks.

The vulnerability exists due to improper access control in the Linux kernel BPF verifier when analyzing ld_{abs,ind} instructions in subprograms. A local user can load a crafted BPF program to bypass BPF verifier checks.

The issue affects subprograms where ld_{abs,ind} instructions are permitted, including cases involving BTF-annotated subprograms with scalar return types.

97) Use-after-free (CVE-ID: CVE-2026-53089)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in bpf_map_offload_info_fill_ns() and bpf_prog_offload_info_fill_ns() when querying info for an offloaded BPF map or program during network namespace destruction. A local user can query crafted offloaded BPF map or program information to cause a denial of service.

The issue occurs because the associated network namespace may be racing with teardown and its reference count may already have reached zero.

98) Off-by-one (CVE-ID: CVE-2026-53088)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an off-by-one error in bcmgenet_put_txcb in the bcmgenet network driver when handling transmit control block pointer rewinding. A local user can trigger the flawed pointer handling to cause a denial of service.

99) Improper resource shutdown or release (CVE-ID: CVE-2026-53087)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in the bcmgenet transmit queue reclaim logic when reclaiming the tx queue and dropping data in flight. A local user can trigger transmission drops to cause a denial of service.

100) Race condition (CVE-ID: CVE-2026-53086)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in the bcmgenet_timeout handler when handling a transmit queue timeout. A local user can trigger a transmit queue timeout to cause a denial of service.

101) Use-after-free (CVE-ID: CVE-2026-53085)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the open-coded task_vma iterator in kernel/bpf/task_iter.c when iterating a task's virtual memory areas while the target task exits concurrently. A local user can trigger the iterator on a task whose mm_struct is freed concurrently to cause a denial of service.

The issue occurs because task->mm is read locklessly and no mm reference is acquired before mmap_read_trylock().

102) Improper locking (CVE-ID: CVE-2026-53084)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper lock handling in the bpf task_vma iterator when executing a BPF program that iterates task VMAs. A local user can trigger lock ordering conditions to cause a denial of service.

The issue arises because the iterator held a per-VMA lock across the BPF program body, creating a lock ordering problem involving vm_lock, i_rwsem, and mmap_lock.

103) Resource exhaustion (CVE-ID: CVE-2026-53083)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper control of resource consumption in bpf_fd_array_map_clear() in the BPF array map implementation when clearing PROG_ARRAY maps with many entries. A local user can trigger map clearing operations to cause a denial of service.

The issue can lead to RCU stalls under load.

104) Use of Uninitialized Variable (CVE-ID: CVE-2026-53082)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an uninitialized value read in sixpack_receive_buf() and sixpack_decode() in the 6pack hamradio driver when processing TTY input with error-flagged bytes. A local user can supply crafted input containing TTY error conditions to cause a denial of service.

The issue occurs because bytes marked with TTY error flags are not skipped correctly before decoding.

105) Improper access control (CVE-ID: CVE-2026-53081)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass BPF verifier state pruning checks.

The vulnerability exists due to improper access control in the BPF verifier when comparing scalar registers carrying BPF_ADD_CONST state. A local user can load a specially crafted BPF program to bypass BPF verifier state pruning checks.

The issue occurs because compound scalar IDs are checked without ensuring consistent mapping of their underlying base IDs.

106) NULL pointer dereference (CVE-ID: CVE-2026-53080)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the cls_fw classifier when classifying packets with an invalid old-style filter on a shared block. A local user can send crafted traffic while creating such a filter to cause a denial of service.

Exploitation requires the ability to configure traffic control filters and trigger packet classification.

107) Memory leak (CVE-ID: CVE-2026-53079)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in qdisc_dequeue_drop() and deferred qdisc drop handling when cleaning up deferred packet drops. A local user can trigger packet drops through a child qdisc whose root qdisc does not implement the TCQ_F_DEQUEUE_DROPS flag to cause a denial of service.

The issue occurs because packets can remain stranded on a child qdisc's local to_free list instead of being freed.

108) Out-of-bounds read (CVE-ID: CVE-2026-53078)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in BPF sock_ops context field access handling when accessing ctx fields with the same destination and source register. A local user can trigger the flawed register handling to cause a denial of service.

The issue occurs when the fullsock or locked_tcp_sock check is false, causing a stale ctx pointer to be retained and used as a bogus socket pointer.

109) Out-of-bounds read (CVE-ID: CVE-2026-53078)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in BPF sock_ops context field access handling when accessing ctx fields with the same destination and source register. A local user can trigger the flawed register handling to disclose sensitive information.

The issue occurs when the fullsock or locked_tcp_sock check is false, causing a stale ctx pointer to be retained.

110) Improper access control (CVE-ID: CVE-2026-53077)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper restriction of operations in RDS/IB transport selection and address checking when using RDS/IB from a non-initial network namespace. A local user can select the RDS/IB transport from a non-initial network namespace to cause a denial of service.

The issue is specific to use of RDS/IB outside the initial network namespace.

111) Out-of-bounds read (CVE-ID: CVE-2026-53076)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in pcpu_init_value in the BPF hashtab implementation when copying an element from a BPF_MAP_TYPE_CGROUP_STORAGE map to another per-cpu map with the same non-8-byte-aligned value_size. A local user can update the destination map with data from the crafted source map to disclose sensitive information.

The issue occurs when the source map value size is not rounded up to 8 bytes, causing a copy operation to read past the claimed source size.

112) Improper access control (CVE-ID: CVE-2026-53075)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform unauthorized PPP administrative operations in an inherited network namespace.

The vulnerability exists due to improper access control in unattached PPP administrative ioctl handling in drivers/net/ppp/ppp_generic.c when processing PPPIOCNEWUNIT, PPPIOCATTACH, or PPPIOCATTCHAN requests. A local user can create a new user namespace and issue crafted ioctl requests to perform unauthorized PPP administrative operations in an inherited network namespace.

Exploitation requires the ability to create a new user namespace with CLONE_NEWUSER.

113) Out-of-bounds read (CVE-ID: CVE-2026-53074)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in bpf_prog_test_run_skb() when processing crafted IPv4 or IPv6 test inputs with an insufficient L3 header. A local user can supply a specially crafted Ethernet frame to cause a denial of service.

114) Race condition (CVE-ID: CVE-2026-53073)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition leading to a null pointer dereference in the Bluetooth hci_ldisc subsystem when processing incoming UART data after device registration fails. A local user can trigger device registration failure and subsequent UART data handling to cause a denial of service.

The issue occurs because protocol-specific receive handlers may be reached after resources have been freed.

115) Use-after-free (CVE-ID: CVE-2026-53072)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in hci_conn_request_evt() when handling deferred Bluetooth connection requests. A local user can trigger concurrent connection handling to cause a denial of service.

Only SCO deferred setup listen code paths are affected.

116) Race condition (CVE-ID: CVE-2026-53071)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to corrupt kernel memory.

The vulnerability exists due to a race condition in l2cap_ecred_reconf_rsp in the L2CAP subsystem when processing a crafted L2CAP ECRED reconfiguration response from a remote BLE device. A remote attacker can send a specially crafted L2CAP ECRED reconfiguration response to corrupt kernel memory.

Exploitation requires concurrent channel list iteration by another thread.

117) Race condition (CVE-ID: CVE-2026-53070)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in SCTP over UDP transmission handling in net/sctp/ipv6.c and net/sctp/protocol.c when transmitting SCTP packets over UDP. A local user can trigger SCTP over UDP traffic to cause a denial of service.

Exploitation requires SCTP over UDP to be enabled.

118) NULL pointer dereference (CVE-ID: CVE-2026-53069)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in xdp_master_redirect() when processing XDP redirect operations for a master device that is not up. A local user can trigger the vulnerable code path to cause a denial of service.

The issue can be reached through the bonding round-robin transmit slave selection path when XDP redirection is enabled system-wide and the bond device was never opened.

119) Integer overflow (CVE-ID: CVE-2026-53068)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause an out-of-bounds memory access.

The vulnerability exists due to integer overflow in the AFBC framebuffer size check in komeda_framebuffer.c when validating a userspace-supplied AFBC framebuffer object. A local user can provide an undersized drm_gem_object with crafted size-related values to cause an out-of-bounds memory access.

120) Double free (CVE-ID: CVE-2026-53067)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free in pci_epf_alloc_doorbell() in the pci endpoint MSI component when handling doorbell allocation after MSI allocation failure or repeated allocation attempts. A local user can trigger doorbell allocation in a way that leaves stale state or reuses an existing allocation to cause a denial of service.

121) NULL pointer dereference (CVE-ID: CVE-2026-53066)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of error pointers in sun4i_backend_atomic_check() in drivers/gpu/drm/sun4i/sun4i_backend.c when processing atomic plane state checks. A local user can trigger an error pointer dereference to cause a denial of service.

122) Improper resource shutdown or release (CVE-ID: CVE-2026-53065)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the sti uniperif player driver when removing the driver after player initialization. A local user can trigger driver initialization and removal to cause a denial of service.

123) NULL pointer dereference (CVE-ID: CVE-2026-53064)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the dm-cache target when handling concurrent writes in passthrough mode during cache entry invalidation. A local user can trigger concurrent writes to the same cached block to cause a denial of service.

Only the passthrough mode code path is affected.

124) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-53063)

CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper control flow management in invalidate_remove() in the dm-cache target when handling write hit bios after cache invalidation in passthrough mode. A local user can trigger write operations in this state to cause a denial of service.

The issue causes write operations to hang because a remapped overwrite bio is dropped without being submitted.

125) Use-after-free (CVE-ID: CVE-2026-53062)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the dm-cache smq policy invalidate_mapping operation when handling concurrent writes in passthrough mode. A local user can trigger concurrent cache block invalidations to cause a denial of service.

The issue occurs when the cache is operating in passthrough mode and multiple workers invalidate cache blocks simultaneously.

126) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-53061)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause data loss.

The vulnerability exists due to improper state validation in the dm-cache target when resuming a preloaded table in passthrough mode while dirty mappings are present. A local user can preload and resume a crafted dm-cache table configuration to cause data loss.

Exploitation requires local access to device-mapper management and occurs when metadata updates are still ongoing during table preloading.

127) Memory leak (CVE-ID: CVE-2026-53060)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in dm_cache_metadata_abort in the device-mapper cache metadata component when reloading a new table while metadata is read-only. A local user can trigger repeated metadata abort operations to cause a denial of service.

The issue can also occur through concurrent metadata_operation_failed calls due to races in cache mode updates.

128) Out-of-bounds write (CVE-ID: CVE-2026-53059)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds write in create_log_context() and dm-log bitset handling when processing a crafted device-mapper mirror target configuration with an oversized region count. A local user can create a crafted mirror target to cause a denial of service.

The issue is triggered when region_count overflows 32 bits, causing bitsets to be allocated smaller than required and later accessed with indices derived from the full region space.

129) NULL pointer dereference (CVE-ID: CVE-2026-53058)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the Cadence MHDP8546 DRM bridge driver when handling atomic enable error recovery paths. A local user can trigger link-up or register-read errors that reach modeset retry handling to cause a denial of service.

The issue occurs with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag set.

130) Improper access control (CVE-ID: CVE-2026-53057)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass IOMMU memory translation updates.

The vulnerability exists due to improper access control in the RISC-V IOMMU IODIR update handling when updating DDT or PDT entries without performing required IOTINVAL invalidations. A local user can trigger device context updates to bypass IOMMU memory translation updates.

The issue affects the RISC-V IOMMU implementation and arises because required TLB and context cache invalidations were not performed after directory entry updates.

131) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53056)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper power state management in the drm/msm/dpu runtime suspend logic when handling runtime suspend and resume operations. A local user can trigger the vulnerable code path to cause a denial of service.

The issue occurs when the MMCX rail is dropped to MIN_SVS while the core clock remains at its highest rate, which can lead to instability or a system crash when the clock is re-enabled.

132) Use-after-free (CVE-ID: CVE-2026-53055)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the hisilicon sec2 crypto driver when processing packet transmission completions under heavy load. A local user can trigger concurrent packet transmission activity to cause a denial of service.

The issue occurs when hardware completes packet processing and the request memory is freed before the transmission function finishes using it.

133) Improper locking (CVE-ID: CVE-2026-53054)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in drm/msm vm_bind unmap handling when processing VM_BIND UNMAP operations for non-_NO_SHARE buffer objects. A local user can trigger a VM_BIND UNMAP operation to cause a denial of service.

The issue only manifests with non-_NO_SHARE buffer objects, because _NO_SHARE objects share a common reservation object with the VM that is always locked.

134) Improper access control (CVE-ID: CVE-2026-53053)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper access of device identifier data in clone_alias() in the AMD IOMMU subsystem when processing PCI DMA aliases. A local user can trigger alias cloning for a device to cause a denial of service.

Incorrect source device identifiers can cause wrong or stale device table entries to be propagated to an alias device.

135) Memory corruption (CVE-ID: CVE-2026-53052)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to incorrect memory access in the qdsp6 topology widget unload handler when processing a virtual widget without checking its type before accessing private data. A local user can trigger the vulnerable code path to cause a denial of service.

136) Improper Initialization (CVE-ID: CVE-2026-53051)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper initialization in the tegra194 PCIe endpoint reset handling code when processing a double PERST# deassert sequence. A local user can trigger repeated reset transitions to cause a denial of service.

The issue occurs because DBI registers are accessed before the controller core is powered on, leading to a CBB timeout.

137) Race condition (CVE-ID: CVE-2026-53050)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in dquot_scan_active() and quota deactivation handling in the quota subsystem when scanning active dquots during quota deactivation. A local user can trigger the race to cause a denial of service.

Under memory pressure, the caller of dquot_scan_active() can end up working on a freed dquot.

138) Improper locking (CVE-ID: CVE-2026-53049)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in gfs2_logd() and log flushing functions in the gfs2 log subsystem when handling concurrent transactions. A local user can trigger concurrent log flush activity to cause a denial of service.

139) NULL pointer dereference (CVE-ID: CVE-2026-53048)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in gfs2_log_release() when flushing outstanding glock work during an unmount. A local user can trigger an unmount condition to cause a denial of service.

140) Heap-based buffer overflow (CVE-ID: CVE-2026-53047)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a heap-based buffer overflow in the efi capsule loader when reallocating the phys array. A local user can trigger the vulnerable code path to cause a denial of service.

The issue affects 32-bit systems with PAE where phys_addr_t is 64-bit but pointers are 32-bit.

141) Use-after-free (CVE-ID: CVE-2026-53046)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to use-after-free in ksmbd_crypt_message() when handling SMB encryption requests with an asynchronous hardware crypto engine. A remote user can send a crafted SMB request to cause a denial of service.

Exploitation requires the ksmbd server to use an asynchronous crypto engine such as the Qualcomm Crypto Engine.

142) Improper input validation (CVE-ID: CVE-2026-53045)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the tegra124 emc timing change logic when processing memory timing settings. A local user can provide a timing configuration with an incorrect DLL state check to cause a denial of service.

143) Out-of-bounds read (CVE-ID: CVE-2026-53044)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the tegra cbb fabric lookup tables when performing target timeout lookup. A local user can trigger the lookup with a crafted fabric configuration state to cause a denial of service.

144) Out-of-bounds read (CVE-ID: CVE-2026-53043)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in dlm_match_regions() when processing a crafted DLM_QUERY_REGION network message. A remote attacker can send a specially crafted network message to disclose sensitive information.

145) NULL pointer dereference (CVE-ID: CVE-2026-53042)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the fwctl device registration and removal handling in the Linux kernel when removing a device after registration occurs before fwctl class initialization. A local user can trigger device removal in this state to cause a denial of service.

146) Improper input validation (CVE-ID: CVE-2026-53041)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the ocfs2 xattr list handling logic when processing listxattr requests for inodes with both inline and block-based extended attributes. A local user can invoke listxattr on a crafted OCFS2 inode state to cause a denial of service.

The issue occurs when inline extended attribute names exactly consume the caller buffer and additional block-based extended attribute names are present.

147) Out-of-bounds read (CVE-ID: CVE-2026-53040)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the ocfs2 freefrag scan logic in fs/ocfs2/ioctl.c when processing a crafted filesystem through OCFS2_IOC_INFO with OCFS2_INFO_FL_NON_COHERENT. A local user can supply a crafted filesystem and issue the ioctl request to cause a denial of service.

The issue occurs in the non-coherent scan path, which reads raw group descriptor blocks without the validation performed by the coherent path.

148) Improper input validation (CVE-ID: CVE-2026-53039)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in ocfs2_group_add when handling the OCFS2_IOC_GROUP_ADD ioctl with a user-controlled group block before validation. A local user can supply crafted group add input to cause a denial of service.

The issue can trigger a kernel BUG in ocfs2_set_new_buffer_uptodate().

149) Out-of-bounds read (CVE-ID: CVE-2026-53038)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in create_securityfs_measurement_lists in the IMA securityfs measurement list creation logic when processing TPM banks with unsupported hash algorithms. A local user can trigger initialization on a system with a TPM that reports an unsupported bank algorithm to cause a denial of service.

The issue is triggered during IMA initialization when a TPM bank algorithm is left as HASH_ALGO__LAST and then used as an index into hash_algo_name[].

150) Improper locking (CVE-ID: CVE-2026-53037)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to improper resource management in hid_post_reset() when processing a reset of a crafted USB device that includes both HID and storage or UAS components. An attacker with physical access can connect a crafted USB device to trigger a deadlock and cause a denial of service.

The issue occurs because the components can be reset only together, placing the affected code in block I/O error handling.

151) Off-by-one (CVE-ID: CVE-2026-53036)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an off-by-one error in the arm64 BPF JIT immediate range check in check_imm() when validating branch displacement values for encoded BPF branch instructions. A local user can supply a crafted branch displacement value to cause a denial of service.

The issue can flip a forward branch into a backward one because the raw value is masked into the signed immediate field.

152) Improper locking (CVE-ID: CVE-2026-53035)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper lock handling in bpf_iter_unix_seq_show() when processing BPF iterator output for AF_UNIX sockets. A local user can trigger a sockmap update from an iterator program to cause a denial of service.

Exploitation requires the ability to run a BPF iterator program that updates a sockmap.

153) NULL pointer dereference (CVE-ID: CVE-2026-53034)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in unix_stream_bpf_update_proto() when updating a sockmap for an af_unix stream socket during a concurrent connect operation. A local user can trigger a race condition via a bpf sockmap update to cause a denial of service.

The issue occurs in a race window where the socket state is set to established before the peer pointer is assigned.

154) Use-after-free (CVE-ID: CVE-2026-53033)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in unix_stream_bpf_update_proto() when processing BPF iterator updates to a sockmap during a unix socket state transition. A local user can trigger a race condition to cause a denial of service.

The issue occurs when the peer pointer becomes stale during the transition from TCP_ESTABLISHED to TCP_CLOSE.

155) NULL pointer dereference (CVE-ID: CVE-2026-53032)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in map_kptr_match_type() in the BPF verifier when processing a scalar register stored into a kptr slot. A local user can trigger the verifier to access a NULL btf pointer to cause a denial of service.

156) Improper input validation (CVE-ID: CVE-2026-53031)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in arena_alloc_pages() when processing a node_id value for page allocation. A local user can supply an invalid node_id to cause a denial of service.

The issue is in the Linux kernel BPF arena implementation.

157) Memory leak (CVE-ID: CVE-2026-53030)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in renesas_i3c_i3c_xfers() when processing I3C transfer requests. A local user can trigger repeated transfer operations to cause a denial of service.

158) Use of Uninitialized Variable (CVE-ID: CVE-2026-53029)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use of uninitialized variable in ntfs_iomap_begin in fs/ntfs3/inode.c when processing crafted NTFS filesystem metadata. A local user can mount or access a specially crafted NTFS filesystem to cause a denial of service.

159) NULL pointer dereference (CVE-ID: CVE-2026-53028)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an error pointer dereference in the cd321x_update_work() function in drivers/usb/typec/tipd/core.c when handling partner registration. A local user can trigger the vulnerable code path to cause a denial of service.

160) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-53027)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of attribute segment run loading in attr_data_get_block_locked() when processing compressed or sparse attributes with frame-aligned clusters. A local user can trigger the affected code path to cause a denial of service.

The issue is triggered when vcn is rounded down to the frame start and vcn and vcn0 reside in different attribute segments.

161) Improper update of reference count (CVE-ID: CVE-2026-53026)

CWE-ID: CWE-911 - Improper Update of Reference Count

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to improper reference count management in nfsd4_add_rdaccess_to_wrdeleg when handling concurrent NFS file access state updates. A remote user can trigger concurrent access patterns to cause a denial of service.

The issue can leave nfsd_file objects unreleased and trigger a BUG in kmem_cache_destroy() when the nfs-server service is stopped.

162) Use-after-free (CVE-ID: CVE-2026-53025)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the greybus raw character device handling in drivers/staging/greybus/raw.c when closing an opened character device after the associated raw bundle has been disconnected. A local user can keep the character device open and then close it after disconnect to cause a denial of service.

Exploitation requires that the character device remain opened by an application while the associated raw bundle is disconnected.

163) Use-after-free (CVE-ID: CVE-2026-53024)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the greybus raw character device write handler when writing to the device after disconnect. A local user can write to the chardev after disconnect to cause a denial of service.

The issue can lead to a kernel panic.

164) Out-of-bounds read (CVE-ID: CVE-2026-53023)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in ntfs3_label_show() when exposing a cached NTFS volume label after UTF-8 conversion. A local user can mount a crafted NTFS filesystem image to disclose sensitive information.

165) Stack-based buffer overflow (CVE-ID: CVE-2026-53022)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a stack-based buffer overflow in populate_enum_data() in the dell-wmi-sysman enumeration attribute handler when aggregating firmware-provided enumeration strings. A local user can provide crafted enumeration data to overflow fixed-size destination buffers and cause a denial of service.

The issue affects aggregation of value-modifier and possible-value strings into fixed 512-byte structure members.

166) Integer overflow (CVE-ID: CVE-2026-53021)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to integer overflow in sbc_execute_unmap() when processing UNMAP requests. A local user can send a crafted UNMAP request to cause a denial of service.

167) Race condition (CVE-ID: CVE-2026-53020)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in um_tlb_sync in arch/um/kernel/tlb.c when synchronizing the TLB and traversing page tables. A local user can trigger concurrent memory-management operations to cause a denial of service.

The issue affects User-Mode Linux.

168) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-53019)

CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an incorrect conditional check in ccu_mix_trigger_fc() in the spacemit ccu_mix clock driver when handling cpufreq scaling. A local user can trigger cpu frequency scaling to cause a denial of service.

The issue can lead to kernel panics during cpu frequency scaling.

169) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53018)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the f2fs garbage collection logic when processing already updated pages during garbage collection. A local user can trigger garbage collection on crafted filesystem state to cause a denial of service.

The issue was identified during fuzz testing and results in a kernel BUG triggered by reading a page that had already been marked uptodate.

170) Race condition (CVE-ID: CVE-2026-53017)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause data loss.

The vulnerability exists due to a race condition in f2fs_need_inode_block_update() and nat_entry flag handling when performing fsync on a newly created file concurrently with a checkpoint operation. A local user can trigger concurrent file and checkpoint activity to cause data loss.

The issue occurs before any checkpoint has been written for the newly created file.

171) Out-of-bounds write (CVE-ID: CVE-2026-53016)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds write in ccp_aes_complete() when processing AF_ALG rfc3686-ctr-aes-ccp requests. A local user can supply a request with an 8-byte IV to cause a denial of service.

172) Integer overflow (CVE-ID: CVE-2026-53015)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an integer truncation in the EROFS zmap logic when processing crafted EROFS filesystem metadata on 32-bit platforms. A local user can provide a specially crafted filesystem image to cause a denial of service.

Only 32-bit platforms are affected.

173) Out-of-bounds write (CVE-ID: CVE-2026-53014)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to memory corruption in tcf_blockcast_redir in net/sched/act_mirred.c when redirecting packets to multiple devices in a block with mixed device types. A local user can trigger packet redirection through such a block to cause a denial of service.

In the worst case, an incorrect mac_len can exhaust skb headroom and panic the kernel.

174) Incorrect Calculation of Buffer Size (CVE-ID: CVE-2026-53013)

CWE-ID: CWE-131 - Incorrect Calculation of Buffer Size

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper calculation of buffer size in macvlan_get_size() when dumping macvlan interface information over netlink. A local user can configure the bc_cutoff attribute and request detailed link information to cause a denial of service.

The issue is triggered when the broadcast cutoff value is not equal to 1, causing the netlink message buffer to run out of space and the interface dump to fail with -EMSGSIZE.

175) NULL pointer dereference (CVE-ID: CVE-2026-53012)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in IPv6 route handling in the nexthop subsystem when replacing an IPv6 nexthop with an IPv4 nexthop and then performing route lookups. A local user can replace a nexthop with one of a different address family and add an IPv6 route referencing the affected group to cause a denial of service.

176) Use-after-free (CVE-ID: CVE-2026-53011)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in advance_sched() in the taprio scheduler when switching schedules. A local user can trigger a schedule switch to cause a denial of service.

177) Use-after-free (CVE-ID: CVE-2026-53010)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to use-after-free in smb2_open during durable reconnect handling when processing a durable reconnect request. A remote user can trigger an error condition during durable reconnect to cause a denial of service.

The issue can occur if a subsequent error happens after the durable file descriptor reference is dropped early, or if a scavenger accesses the file before smb2_open returns.

178) Double free (CVE-ID: CVE-2026-53009)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a double free in ice_xmit_frame_ring() and tx ring buffer cleanup when handling transmit error paths and interface shutdown. A local user can trigger transmit checksum or tso failure conditions and then bring the interface down to cause a denial of service.

The issue occurs because a tx_buf entry can remain marked as valid and continue to reference an skb that was already freed in the error path.

179) Race condition (CVE-ID: CVE-2026-53008)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition leading to a NULL pointer dereference in the ice TX timestamp ring handling when processing transmit operations concurrently with TX timestamp ring cleanup. A local user can trigger concurrent ring cleanup and transmit mapping operations to cause a denial of service.

The issue occurs because one CPU can observe the TXTIME flag as set after the timestamp ring pointer has already been cleared on another CPU.

180) NULL pointer dereference (CVE-ID: CVE-2026-53007)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in ice_set_ringparam() error handling when unwinding a failed ice_setup_tx_ring() call with the TXTIME flag still set. A local user can trigger this error path to cause a denial of service.

The issue occurs in the Intel ice network driver.

181) Use-after-free (CVE-ID: CVE-2026-53006)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a use-after-free in icmpv6_rcv() in the IPv6 ICMP handling code when processing ICMPv6 packets. A remote attacker can send a specially crafted ICMPv6 packet to cause a denial of service.

182) Use-after-free (CVE-ID: CVE-2026-53005)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the AF_UNIX SOCKMAP handling and garbage collection logic when processing socket buffers carrying SCM file descriptor attributes through SOCKMAP. A local user can send crafted AF_UNIX messages with SCM file descriptor attributes through SOCKMAP to cause a denial of service.

The issue arises because redirected socket buffers are not visible to AF_UNIX garbage collection, and user interaction is not required.

183) Out-of-bounds write (CVE-ID: CVE-2026-53004)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to corrupt adjacent userspace data.

The vulnerability exists due to an out-of-bounds write in sctp_getsockopt_peer_auth_chunks when processing a getsockopt request for peer AUTH chunks with an undersized optval buffer. A local user can supply a crafted buffer length to corrupt adjacent userspace data.

Exploitation requires an SCTP association with AUTH enabled, and the overwritten bytes land in the caller's own userspace buffer rather than in kernel memory.

184) Improper input validation (CVE-ID: CVE-2026-53003)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the PPPoE frame handling in the Linux kernel when processing PPPoE frames with a compressed protocol field. A remote attacker can send a specially crafted PPPoE frame to cause a denial of service.

The issue can trigger unaligned access exceptions on some architectures because the PPP payload becomes shifted by one byte and the network header becomes 4-byte misaligned.

185) Stack-based buffer overflow (CVE-ID: CVE-2026-53002)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a stack-based buffer overflow in the nf_nat_sip netfilter helper when processing crafted SIP/SDP messages. A remote attacker can send specially crafted network traffic to cause a denial of service.

The issue is triggered in mangle_content_len() during SIP message handling.

186) Improper access control (CVE-ID: CVE-2026-53001)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass intended netfilter match restrictions.

The vulnerability exists due to improper access control in the netfilter xtables match extensions xt_mac, xt_owner, xt_physdev, and xt_realm when registering protocol families. A local user can invoke these matches with unsupported protocol families to bypass intended netfilter match restrictions.

The issue stems from these matches being registered for unspecified protocol families even though they are intended only for IPv4 and IPv6, and xt_realm is intended only for IPv4.

187) Use-after-free (CVE-ID: CVE-2026-53000)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in netfilter nat hook operations when dumping active netfilter hooks from userspace or handling partial hook exposure on error paths. A local user can trigger hook inspection while freed hook operation structures are still referenced to cause a denial of service.

The issue affects nat hook registration and unregistration paths, including interaction with the nfnetlink hook dump subsystem.

188) Out-of-bounds read (CVE-ID: CVE-2026-52999)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause incorrect logging behavior.

The vulnerability exists due to an out-of-bounds read in nf_osf_match_one() in nfnetlink_osf when processing TCP option matching across multiple fingerprints. A remote attacker can send specially crafted network traffic to cause incorrect logging behavior.

The issue is triggered when NF_OSF_LOGLEVEL_ALL is configured and matching continues after an earlier fingerprint match.

189) NULL pointer dereference (CVE-ID: CVE-2026-52998)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in nf_osf_ttl() when processing packets for TTL checks. A remote attacker can send a specially crafted packet to cause a denial of service.

190) NULL pointer dereference (CVE-ID: CVE-2026-52997)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in dualpi2_change() in the sch_dualpi2 qdisc when enforcing updated limit or memlimit values after a configuration change. A local user can trigger traffic classification that leaves packets queued in the L-queue while the C-queue is empty to cause a denial of service.

191) Improper resource shutdown or release (CVE-ID: CVE-2026-52996)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in parse_durable_handle_context() in the ksmbd SMB server durable handle processing when handling durable v2 open requests with a matching CreateGuid but mismatched ClientGUID. A remote user can send specially crafted durable reconnect requests to cause a denial of service.

Repeated mismatch requests can pin global file table entries and prevent file cleanup for the corresponding files.

192) Improper Initialization (CVE-ID: CVE-2026-52995)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to improper initialization in net/rds connection information handling when processing getsockopt requests for RDS connection information. A local user can query RDS IB connection information to disclose sensitive information.

Exploitation requires access to AF_RDS and an RDMA-capable network device, and occurs when connection state causes only part of the output structure to be populated.

193) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-52994)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass resource limit enforcement.

The vulnerability exists due to improper resource management in virtio_transport_init_zcopy_skb() when processing MSG_ZEROCOPY sends. A local user can send data using MSG_ZEROCOPY to bypass resource limit enforcement.

The issue occurs because pinned-pages accounting can use a consumed iterator count of 0 on the last skb, causing RLIMIT_MEMLOCK accounting to be skipped.

194) Double free (CVE-ID: CVE-2026-52993)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free in tipc_buf_append() when validating a reassembled skb after tipc_msg_validate() reallocates it. A local user can trigger the error-handling path with a crafted TIPC message to cause a denial of service.

195) Out-of-bounds write (CVE-ID: CVE-2026-52992)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds write in adfs_map_layout() when parsing a crafted ADFS image during filesystem probe. A local user can provide a crafted image with a zero zone count to cause a denial of service.

The issue affects new-format ADFS images and is triggered before the disc record is used.

196) Use-after-free (CVE-ID: CVE-2026-52991)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in pressure_write() in kernel/cgroup/cgroup.c when handling a write to a pressure cgroup file during concurrent cgroup file release. A local user can write crafted pressure data while racing cgroup file release to cause a denial of service.

The issue occurs because the of->priv pointer may be freed concurrently and later dereferenced.

197) Improper resource shutdown or release (CVE-ID: CVE-2026-52990)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in fsnotify_recalc_mask() when handling concurrent mark attach and detach operations. A local user can trigger the race condition to cause a denial of service.

The issue can manifest as a hung task during unmount operations.

198) Out-of-bounds read (CVE-ID: CVE-2026-52989)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds condition in nvmet_tcp_build_pdu_iovec() and the NVMe target TCP receive path when processing crafted PDU length or offset values. A remote attacker can send a specially crafted network PDU to cause a denial of service.

The issue occurs because a fatal error is not propagated to callers, leaving cmd->recv_msg.msg_iter uninitialized before subsequent receive handling uses it.

199) Race condition (CVE-ID: CVE-2026-52988)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in nf_tables commit phase hook list handling in netfilter when publishing new hooks while concurrent netlink dump list traversal via rcu is in progress. A local user can trigger concurrent ruleset updates to cause a denial of service.

200) Double free (CVE-ID: CVE-2026-52987)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a double free in amdgpu_userq_vm_validate() when handling failures from amdgpu_ttm_tt_get_user_pages() during user queue validation. A local user can trigger an error path that calls drm_exec_fini() twice on the same exec object to cause a denial of service.

The issue occurs when the new_addition path has already finalized the exec object before processing collected HMM ranges.

201) Out-of-bounds read (CVE-ID: CVE-2026-52986)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to out-of-bounds read in the nf_conntrack_sip SIP message parser when parsing non-NUL-terminated SIP packet data containing crafted port values. A remote attacker can send a specially crafted SIP packet to cause a denial of service.

The issue involves port parsing in epaddr_len(), ct_sip_parse_header_uri(), and ct_sip_parse_request(), where parsing could reach the buffer limit without a trailing character.

202) Use of Uninitialized Variable (CVE-ID: CVE-2026-52985)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to use of uninitialized memory in nsim_dev_trap_skb_build when building a dummy sk_buff IP header. A local user can trigger the vulnerable code path to disclose sensitive information.

203) Resource exhaustion (CVE-ID: CVE-2026-52984)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in netem_enqueue() in the netem scheduler when handling reordered packets. A local user can trigger packet reordering to cause a denial of service.

204) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-52983)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in the airoha network driver transmit queue handling when processing transmitted packets and completion accounting. A local user can trigger inconsistent BQL accounting to cause a denial of service.

205) Use-after-free (CVE-ID: CVE-2026-52982)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in rtl8150_start_xmit() when submitting a USB transmit URB and updating transmit statistics. A local user can trigger concurrent URB completion to cause a denial of service.

The issue is caused by reading skb->len after usb_submit_urb() returns, while the skb may already have been freed by the completion path on another CPU in softirq context.

206) Improper resource shutdown or release (CVE-ID: CVE-2026-52981)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in neigh_xmit in the neighbour networking subsystem when handling packet transmission with an uninitialized neighbor table. A local user can trigger packet transmission in this state to cause a denial of service.

This can occur, for example, when the IPv6 neighbor table is uninitialized because IPv6 is disabled.

207) Improper Initialization (CVE-ID: CVE-2026-52980)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper initialization in the fair scheduler sched_entity state in __sched_fork() when handling a newly forked task that later calls sched_yield(). A local user can fork a task and trigger sched_yield() to cause a denial of service.

The issue can corrupt cfs_rq->sum_w_vruntime, break EEVDF eligibility calculation, and lead to a later NULL dereference.

208) Race condition (CVE-ID: CVE-2026-52979)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in psp_assoc_device_get_locked() when handling netlink requests for association creation. A local user can send a specially crafted netlink request to cause a denial of service.

The issue is caused by a race condition involving device unregistration.

209) Improper access control (CVE-ID: CVE-2026-52978)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to modify shared device state.

The vulnerability exists due to improper access control in the psp netlink dev-set and key-rotate operations when handling netlink requests. A remote user can send crafted netlink requests to modify shared device state.

The only access check verifies network namespace membership.

210) Race condition (CVE-ID: CVE-2026-52977)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in futex requeue-PI handling in kernel/futex/requeue.c when processing wait-requeue-pi and requeue-PI operations during signal or timeout wakeup. A local user can trigger concurrent futex operations to cause a denial of service.

The issue can result in a live lock where one task blocks on a hash bucket lock while another busy loops, potentially locking up the system.

211) Use-after-free (CVE-ID: CVE-2026-52976)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in xe_exec_queue_create_ioctl() when handling crafted ioctl requests that trigger error cleanup paths. A local user can trigger queue creation failures to cause a denial of service.

One affected path leaves a freed queue linked in the VM compute exec queue list in preempt fence mode, and another leaves a freed queue linked in the hardware engine group list.

212) Race condition (CVE-ID: CVE-2026-52975)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a data race in the bonding 802.3ad port-to-aggregator handling code when processing netlink requests and concurrent bonding state changes. A local user can send crafted netlink messages to trigger the race and cause a denial of service.

The issue was reported by Kernel Concurrency Sanitizer and affects access to the port->aggregator pointer in the bonding subsystem.

213) Memory leak (CVE-ID: CVE-2026-52974)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in the TLS RX offload setup error path when handling a failure in device offload initialization. A local user can trigger offload RX setup failure to cause a denial of service.

The issue occurs when tls_set_device_offload_rx() fails at tls_dev_add() after the strparser has been initialized and an anchor skb has been allocated.

214) Use-after-free (CVE-ID: CVE-2026-52973)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in futex hash allocation logic when creating a CLONE_VM clone that shares the memory map outside strict CLONE_THREAD semantics. A local user can create a crafted clone scenario to cause a denial of service.

The issue arises when the memory map is shared in ways other than pthread-style threading, which can leave a biased per-cpu futex reference pointing to freed memory.

215) Use-after-free (CVE-ID: CVE-2026-52971)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the ena PHC get_timestamp function when accessing PHC timestamp data during concurrent PHC destruction. A local user can trigger concurrent operations to cause a denial of service.

216) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-52970)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a missing reference release in nft_ct_expect_obj_eval() in the netfilter nft_ct component when processing conntrack expectation objects. A local user can trigger the vulnerable code path to cause a denial of service.

217) Out-of-bounds write (CVE-ID: CVE-2026-52969)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to an out-of-bounds write in kvm_reset_dirty_gfn() and the KVM dirty ring handling logic when processing rewritten dirty ring entries from a vcpu file descriptor. A local user can modify slot and offset fields in crafted dirty ring entries to cause memory corruption.

The issue is reachable from a process holding /dev/kvm and affects the legacy MMU path with shadow paging, allocated shadow roots, or a write-tracked slot.

218) Out-of-bounds write (CVE-ID: CVE-2026-52968)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to out-of-bounds access in the KVM s390 PCI GAIT handling code when processing AIF and host alert forwarding operations. A local user can trigger crafted GAIT index usage to cause a denial of service.

The issue is caused by double-scaling pointer arithmetic that accesses element aisb*16 instead of aisb, and out-of-bounds accesses occur when aisb is 32 or greater.

219) Out-of-bounds read (CVE-ID: CVE-2026-52967)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to cause a denial of service or disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in symlink_data() in fs/smb/client/smb2file.c when parsing SMB error context data for symlink responses. A remote attacker can send a specially crafted SMB response to cause a denial of service or disclose sensitive information.

On 32-bit architectures, malformed ErrorDataLength values can also trigger an infinite loop.

220) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-52965)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in ttm_bo_swapout() LRU list handling when processing swapout failures. A local user can trigger a swapout failure to cause a denial of service.

The issue can cause an infinite LRU walk because the same resource is encountered repeatedly after being moved relative to the walk cursor's hitch node.

221) Out-of-bounds read (CVE-ID: CVE-2026-52964)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the USB MIDI 2.0 endpoint descriptor parser when parsing a malformed USB device descriptor. An attacker with physical access can connect a specially crafted USB device to cause a denial of service.

222) Out-of-bounds read (CVE-ID: CVE-2026-52963)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in snd_usbmidi_get_ms_info() / USB MIDI endpoint descriptor scanning when parsing crafted MIDIStreaming endpoint descriptors. A local user can provide a crafted USB device descriptor to disclose sensitive information.

223) Memory leak (CVE-ID: CVE-2026-52962)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in __ceph_setxattr() when retrying extended attribute updates. A local user can trigger repeated setxattr operations to cause a denial of service.

224) Race condition (CVE-ID: CVE-2026-52961)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in __ceph_build_xattrs_blob() and ceph xattr handling when processing concurrent xattr updates and capability grant handling. A local user can trigger stale blob size state to cause a denial of service.

The issue can lead to a kernel BUG in fs/ceph/xattr.c during Ceph xattr processing.

225) Improper update of reference count (CVE-ID: CVE-2026-52960)

CWE-ID: CWE-911 - Improper Update of Reference Count

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper reference count management in ceph_process_folio_batch in fs/ceph/addr.c when processing folios for writeback. A local user can trigger handling of folios not suitable for writeback to cause a denial of service.

226) Out-of-bounds write (CVE-ID: CVE-2026-52959)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to improper handling of a host-controlled allocation size in get_ext_report() in the sev-guest driver when processing an extended guest request. A local user can provide a crafted length value through the host response to cause memory corruption.

The issue occurs in the cleanup path after the host reports an invalid buffer length and returns an expected certificate buffer size.

227) Out-of-bounds read (CVE-ID: CVE-2026-52958)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds access in osdmap_decode() when decoding a corrupted incoming osdmap message. A remote attacker can send a specially crafted osdmap message to cause a denial of service.

The issue can occur when the max_osd value in the message exceeds the actual content of the osdmap.

228) NULL pointer dereference (CVE-ID: CVE-2026-52957)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in decode_choose_args() when processing a crafted CEPH_MSG_OSD_MAP message containing a crush_choose_arg_map with a bucket index that refers to a NULL bucket. A remote attacker can send a specially crafted message to cause a denial of service.

229) Out-of-bounds read (CVE-ID: CVE-2026-52956)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in __ceph_x_decrypt() when processing a crafted Ceph authentication reply message. A remote attacker can send a specially crafted message frame to cause a denial of service.

The issue can be triggered when the ciphertext is too short to contain a ceph_x_encrypt_header, such as in a FRAME_TAG_AUTH_REPLY_MORE message.

230) Out-of-bounds read (CVE-ID: CVE-2026-52955)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds access in crush_decode() when processing a CEPH_MSG_OSD_MAP message containing a crush map with mismatched bucket algorithm fields. A remote attacker can send a specially crafted CEPH_MSG_OSD_MAP message to cause a denial of service.

231) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-52954)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper handling of duplicate rbtree keys in decode_choose_args() when processing a crafted CEPH_MSG_OSD_MAP message containing duplicate choose_args_index values. A remote attacker can send a specially crafted message to cause a denial of service.

232) Out-of-bounds read (CVE-ID: CVE-2026-52953)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds access in domain_remove_dev_pasid() when closing a VFIO device and removing a device PASID for a blocked domain. A local user can trigger the affected code path to cause a denial of service.

The issue can be triggered when a QEMU process is terminated.

233) Use-after-free (CVE-ID: CVE-2026-52952)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in __iommu_group_set_domain_internal() when handling concurrent domain attachment and device recovery operations. A local user can trigger device reset and re-attachment sequences to cause a denial of service.

The issue arises when a device in the IOMMU group is recovering while group->domain still points to a domain that may be freed.

234) Use-after-free (CVE-ID: CVE-2026-52951)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free race condition in the xe dma-buf import handling in drivers/gpu/drm/xe/xe_dma_buf.c when triggering the invalidate_mappings hook during buffer object initialization or error handling. A local user can trigger dma-buf import and race the invalidate_mappings callback to cause a denial of service.

The issue can occur when importing a dma-buf from another driver such as amdgpu, and reported outcomes include NULL pointer dereference and crashes during eviction flow.

235) Use-after-free (CVE-ID: CVE-2026-52950)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the drm/xe dma-buf import handling in xe_gem_prime_import() when processing a dma-buf attachment with the retry loop. A local user can trigger an error path that frees the backing object and then causes it to be reused to cause a denial of service.

236) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-52949)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in ttm_bo_shrink() when handling backup failures during buffer object shrinking. A local user can trigger a backup failure to cause a denial of service.

237) Improper access control (CVE-ID: CVE-2026-52944)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to bypass permission checks and modify file sparse attributes.

The vulnerability exists due to improper access control in fsctl_set_sparse() when handling FSCTL_SET_SPARSE requests. A remote user can send a crafted FSCTL_SET_SPARSE request on an opened file to bypass permission checks and modify file sparse attributes.

The issue affects both clients on read-only shares and clients on writable shares that lack FILE_WRITE_DATA or FILE_WRITE_ATTRIBUTES access.

238) Use-after-free (CVE-ID: CVE-2026-52943)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to a use-after-free in pskb_carve_inside_header() and pskb_carve_inside_nonlinear() when copying skb_shared_info for MSG_ZEROCOPY skbs. A local user can trigger repeated zerocopy skb operations to escalate privileges.

The issue is caused by copying the destructor_arg pointer into a new skb_shared_info without incrementing the associated zerocopy reference count, which can prematurely free ubuf_info_msgzc while transmit skbs still hold live references.

239) NULL pointer dereference (CVE-ID: CVE-2026-52941)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the smc_msg_event tracepoint when processing sendmsg() or recvmsg() on an SMC-D socket with the tracepoint enabled. A local user can trigger socket activity on an SMC-D socket to cause a denial of service.

Exploitation requires the tracepoint to be enabled, and the crash occurs on the first sendmsg() or recvmsg() on an affected SMC-D socket.

240) Use of Uninitialized Variable (CVE-ID: CVE-2026-52937)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an information leak from uninitialized stack memory in tap_ioctl() when handling the SIOCGIFHWADDR ioctl request. A local user can issue a crafted ioctl request to disclose sensitive information.

The leaked data may include kernel .text and direct-map pointers, which can defeat KASLR.

241) Improper locking (CVE-ID: CVE-2026-52936)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper lock management in jent_kcapi_random() when generating entropy for parallel readers. A local user can trigger concurrent requests to cause a denial of service.

The issue arises because a shared lock is held across expensive entropy collection and SHA3 conditioning operations, causing contending readers to spin and stall.

242) Integer overflow (CVE-ID: CVE-2026-52934)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to corrupt kernel memory.

The vulnerability exists due to an integer overflow leading to an out-of-bounds write in batadv_tvlv_container_ogm_append() and batadv_tvlv_container_list_size() when processing registered TVLV containers. A local user can cause the accumulated TVLV size to exceed U16_MAX and trigger an undersized allocation to corrupt kernel memory.

243) Improper resource shutdown or release (CVE-ID: CVE-2026-52932)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the xfrm ipcomp processing in net/xfrm/xfrm_ipcomp.c when handling acomp error conditions. A local user can trigger an error during IPComp processing to cause a denial of service.

244) Use of Uninitialized Variable (CVE-ID: CVE-2026-52931)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause undefined behavior.

The vulnerability exists due to use of uninitialized memory in batadv_tp_recv_ack() and batadv_tp_stop() in the tp_meter component when processing a malicious ACK packet for a tp_meter session while the node is acting as a receiver. A remote attacker can send a malicious ACK packet to cause undefined behavior.

The issue occurs when sender-only members are accessed for tp_vars in the BATADV_TP_RECEIVER role during an ongoing tp_meter session.

245) Improper access control (CVE-ID: CVE-2026-52928)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper access control in the AF_UNIX SIOCATMARK ioctl handler when processing SIOCATMARK requests on non-stream sockets. A local user can invoke the ioctl on a SOCK_DGRAM or SOCK_SEQPACKET socket to cause a denial of service.

246) Out-of-bounds read (CVE-ID: CVE-2026-52927)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in compat_mtw_from_user in the ebtables netfilter subsystem when converting 32-bit user-supplied extension structures to native kernel structures. A local user can provide a crafted match or target size smaller than the extension requires to disclose sensitive information.

The issue affects extensions that rely on compat_from_user callbacks, which assume they can read the required compat size.

247) Improper resource shutdown or release (CVE-ID: CVE-2026-52926)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in batman-adv gateway client teardown logic when tearing down and later recreating a mesh. A local user can trigger mesh teardown to cause a denial of service.

The issue leaves stale current gateway state behind across cleanup, which can break a later mesh recreation.

248) NULL pointer dereference (CVE-ID: CVE-2026-52925)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the VRF port removal logic when removing a port from a VRF while concurrent RCU readers access the master device. A local user can trigger concurrent network operations to cause a denial of service.

The issue occurs because an RCU reader can observe a new non-VRF master device and then dereference missing l3mdev operations.

249) Use-after-free (CVE-ID: CVE-2026-52923)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in ipc_idr_alloc() in the checkpoint/restore SysV IPC allocation path when processing a request for the next SysV IPC id. A local user can request allocation beyond the valid IPC id range to cause a denial of service.

A subsequent walk of /proc/sysvipc/shm can dereference freed memory through a stale IDR entry.

250) NULL pointer dereference (CVE-ID: CVE-2026-52922)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in batadv_dat_forward_data() when forwarding data to DHT candidates. A local attacker can trigger an allocation failure and reach unconditional dereference of a NULL skb pointer to cause a denial of service.

251) Off-by-one (CVE-ID: CVE-2026-52921)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an off-by-one error in the netfilter ipset hash set range iteration logic when processing IPv4 ranges in hash:ip,mark, hash:ip,port, hash:ip,port,ip, and hash:ip,port,net set variants. A local user can supply a crafted range request to cause a denial of service.

A later retry may continue from an unintended position after traversal advances past the end of the requested range.

252) Improper access control (CVE-ID: CVE-2026-52920)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to bypass inbound IPsec policy matching restrictions.

The vulnerability exists due to improper access control in the xt_policy netfilter matcher when processing strict mode inbound policy matching. A remote attacker can send network traffic that traverses a multi-element inbound rule to bypass inbound IPsec policy matching restrictions.

The issue affects strict matching of multi-element inbound rules.

253) Use-after-free (CVE-ID: CVE-2026-52919)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service and trigger a use-after-free.

The vulnerability exists due to a use-after-free in batadv_tp_sender_shutdown() and batadv_tp_send() in the batman-adv tp_meter component when shutting down the throughput meter sender through multiple paths. A local user can trigger timeout, cancellation, or normal completion paths to cause a denial of service and trigger a use-after-free.

The issue occurs because the sending counter can underflow to a negative value, causing the sender kernel thread to continue running after interface removal.

254) Race condition (CVE-ID: CVE-2026-52918)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in bt_sock_poll() and the Bluetooth accept queue when polling Bluetooth sockets. A local user can trigger concurrent socket teardown and accept queue access to cause a denial of service.

The issue occurs because the accept queue is walked without synchronization while child teardown can unlink a socket and drop its last reference.

255) Uncontrolled Recursion (CVE-ID: CVE-2026-52916)

CWE-ID: CWE-674 - Uncontrolled Recursion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled recursion in batadv_batman_skb_recv() and fragment reassembly handling in the batman-adv fragmentation component when processing nested BATADV_UNICAST_FRAG packets. A remote attacker can send a specially crafted fragmented packet to cause a denial of service.

The issue occurs when a reassembled payload is itself another BATADV_UNICAST_FRAG packet, leading to unbounded kernel stack growth until exhaustion.

256) Out-of-bounds read (CVE-ID: CVE-2026-52915)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in hbh_mt6_check() in net/ipv6/netfilter/ip6t_hbh.c when processing user-supplied rule setup data. A local user can supply an oversized option list to cause a denial of service.

The issue is triggered because the fixed-size opts array stores at most 16 option descriptors.

257) Integer overflow (CVE-ID: CVE-2026-52914)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an integer overflow in the batman-adv fragment reassembly logic when processing malformed fragment chains. A local user can send malformed fragments to cause a denial of service.

258) NULL pointer dereference (CVE-ID: CVE-2026-52913)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the batman-adv OGMv2 handling code when processing OGM dispatch on an interface that has been disabled and lost its mesh interface association. A local user can trigger OGM processing on such an interface to cause a denial of service.

The issue occurs because an interface may be disabled after OGM processing begins, leaving its mesh interface pointer set to NULL while the code still attempts to use it.

259) Use-after-free (CVE-ID: CVE-2026-52912)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a use-after-free in nf_queue when reinjecting queued bridge LOCAL_IN packets. A remote attacker can trigger packet queueing and later reinjection to cause a denial of service.

The issue occurs because skb->dev can still reference a freed bridge master device while the packet remains queued.

260) Improper access control (CVE-ID: CVE-2026-52911)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to access another user's session.

The vulnerability exists due to improper access control in ksmbd_session_lookup_all() when processing a binding SESSION_SETUP request. A remote user can send a crafted session lookup request to access another user's session.

The issue occurs because a connection-wide binding flag can remain set after a binding SESSION_SETUP, allowing the global session lookup path to resolve sessions not bound to that connection.

261) Race condition (CVE-ID: CVE-2026-46324)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in netfilter nf_tables netlink hooks when concurrent dumpers walk hook lists during hook unregistration. A local user can trigger concurrent netlink operations to cause a denial of service.

262) Memory leak (CVE-ID: CVE-2026-46322)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in tun_xdp_one() when handling a build_skb() allocation failure. A local user can trigger this error path to cause a denial of service.

The issue occurs because a page allocated for the frame is not freed on the failure path, and the per-buffer error may be discarded during batch processing.

263) Memory leak (CVE-ID: CVE-2026-46321)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in tun_xdp_one() in the tun driver when processing short frames through the tun and vhost-net transmit path. A local user can submit TX descriptors whose payload length is shorter than ETH_HLEN to exhaust host memory and trigger an OOM panic.

Exploitation requires the ability to open /dev/net/tun and /dev/vhost-net and to attach a tun/tap device as the vhost-net backend.

264) Improper resource shutdown or release (CVE-ID: CVE-2026-46320)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in tap_get_user_xdp() when processing XDP frames. A local user can send a crafted short frame or trigger skb allocation failure to cause a denial of service.

Each rejected frame in a batch leaks one page-frag chunk.

265) Use-after-free (CVE-ID: CVE-2026-46319)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to a use-after-free race condition in tcf_ct_flow_table_get() in net/sched/act_ct.c when looking up a flow table and incrementing its reference count. A local user can trigger the race during act_ct initialization to escalate privileges.

The race window is very short and occurs after the flow table object is returned from the hash table lookup but before its reference count is successfully incremented.

266) Memory leak (CVE-ID: CVE-2026-46318)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in hugetlbfs mmap handling when processing a hugetlb mapping request. A local user can trigger a failed allocation after mmap preparation to cause a denial of service.

The issue occurs because hugetlb VMA lock allocation may leak if allocation fails after mmap preparation is invoked.

267) Use-after-free (CVE-ID: CVE-2026-46317)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the nested_mmus array in arm64 KVM nested virtualization when reallocating nested MMU structures while the array is being walked under mmu_lock. A local user can trigger nested vcpu initialization and concurrent MMU notifier activity to cause a denial of service.

The issue arises from a race condition between nested vcpu initialization and the MMU notifier path.

268) Use of uninitialized resource (CVE-ID: CVE-2026-46315)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to uninitialized memory usage in io_uring IORING_OP_WAITID result handling when copying waitid result data to userspace. A local user can trigger a wait operation that completes without reporting a child event to disclose sensitive information.

The issue occurs because stale bytes from reused io_kiocb command storage may be copied to userspace siginfo when no child event information is written.

269) Improper input validation (CVE-ID: CVE-2026-46314)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in v3d_get_extensions() and multisync extension handling in the v3d driver when processing a userspace-provided ioctl extension list. A local user can submit a self-referential extension with zero in_sync_count and out_sync_count to cause a denial of service.

The issue can result in an infinite loop in kernel context that blocks the calling thread and pegs a CPU core indefinitely.

270) NULL pointer dereference (CVE-ID: CVE-2026-46313)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to improper handling of an error pointer in ipu6_pci_probe() in drivers/media/pci/intel/ipu6/ipu6.c when handling a device probe error path. A local attacker can trigger the vulnerable error path to cause a denial of service.

271) Improper Initialization (CVE-ID: CVE-2026-46312)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper initialization of vma flags in vb2_dma_sg_mmap() in the videobuf2 dma-sg memory-mapping path when mmap() is performed on an imported dma-buf. A local user can trigger the affected mmap operation to cause a denial of service.

The issue manifests as a kernel warning in drm_gem_mmap_obj() during mmap() of an imported dma-buf.

272) Race condition (CVE-ID: CVE-2026-46311)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in drm/amdgpu user queue handling in drivers/gpu/drm/amd/amdgpu/mes_userqueue.c when creating a user queue and accessing the wptr mapping. A local user can trigger queue creation while unmapping the wptr object and reusing another buffer object at the same address to cause a denial of service.

The issue involves stale wptr mapping access during queue creation.

273) NULL pointer dereference (CVE-ID: CVE-2026-46310)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the vsp1 module cleanup logic when unloading the module on gen 4 systems. A local user can trigger module unload to cause a denial of service.

The issue occurs because the cleanup path calls the wrong cleanup function for gen 4 hardware.

274) Improper input validation (CVE-ID: CVE-2026-46309)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to improper input validation in xe_vm_madvise_ioctl() when applying a PAT index with XE_COH_NONE to CPU cached memory. A local user can submit a crafted madvise request to disclose sensitive information.

This issue is limited to iGPU configurations, where the GPU can bypass CPU caches and read stale data directly from DRAM from previously freed pages of other processes.

275) Use-after-free (CVE-ID: CVE-2026-46308)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in scpsys_get_bus_protection_legacy() when handling an error from syscon_regmap_lookup_by_phandle(). A local user can trigger the error path to cause a denial of service.

276) Out-of-bounds write (CVE-ID: CVE-2026-46307)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to out-of-bounds write in the ath5k driver transmit completion handling in drivers/net/wireless/ath/ath5k/base.c when processing transmit status data. A local attacker can trigger the vulnerable code path to cause a denial of service.

The out-of-bounds write overwrites the adjacent ack_signal member, and the reported effect is negligible.

277) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-46306)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper handling of compressed protocol fields in the PPPoE flow dissector in net/core/flow_dissector.c when processing PPPoE PFC frames. A remote attacker can send a specially crafted PPPoE PFC frame to cause a denial of service.

The issue can trigger an unaligned access exception on some architectures, and it was reproduced on MIPS systems with RPS enabled even when no PPPoE session was active on the interface.

278) NULL pointer dereference (CVE-ID: CVE-2026-46305)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in rtw_cbuf_alloc when handling a failed memory allocation. A local user can trigger memory allocation failure conditions to cause a denial of service.

279) Improper locking (CVE-ID: CVE-2026-46304)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in nvmet_ctrl_free when freeing a controller while processing nvmet-wq work items. A local user can trigger controller teardown to cause a denial of service.

The issue can lead to a possible recursive locking condition on the nvmet-wq workqueue during NVMe target controller teardown.

280) Out-of-bounds read (CVE-ID: CVE-2026-46303)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in rock_continue() in the isofs Rock Ridge continuation entry parser when parsing a crafted ISO image during mount. A remote attacker can supply a crafted ISO image with a malformed CE continuation extent to disclose sensitive information.

User interaction may be required through desktop optical auto-mount, or exploitation may require mounting the crafted ISO with administrative mount capability.

281) Improper access control (CVE-ID: CVE-2026-46302)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper access control in /sys/fs/selinux/policy when handling concurrent opens of the policy file. A local user can open the policy file and keep it open to cause a denial of service.

The issue can prevent other processes from reading the kernel policy.

282) Use-after-free (CVE-ID: CVE-2026-46301)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the spi-topcliff-pch driver when handling driver unbind operations with pending queued work. A local user can trigger driver unbind while queued operations are still being flushed to cause a denial of service.

The issue occurs because DMA buffers may be released before the driver queue is fully flushed during device removal.

283) Improper locking (CVE-ID: CVE-2026-46299)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper lock management in hfsplus_fill_super() when mounting a crafted HFS+ filesystem image. A local user can trigger the error path during filesystem mount to cause a denial of service.

The issue occurs when hfsplus_cat_build_key() fails after hfs_find_init() has acquired tree->tree_lock, leading to cleanup of the tree structure while the lock is still held.

284) Race condition (CVE-ID: CVE-2026-46298)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in papr-hvpipe ioctl and release handlers when handling ioctl or release operations concurrently with an interrupt on the same cpu. A local user can trigger these operations to cause a denial of service.

285) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-46297)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource or shutdown handling in the VF misc interrupt registration logic in libwx when registering the VF misc interrupt handler. A local user can trigger the vulnerable interrupt registration path to cause a denial of service.

The issue results in a kernel WARNING when the interrupt is registered with IRQF_ONESHOT and no threaded handler.

286) NULL pointer dereference (CVE-ID: CVE-2026-46296)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL-pointer dereference in the s3c64xx spi driver remove() path when unbinding the driver. A local user can trigger driver unbind to cause a denial of service.

287) Race condition (CVE-ID: CVE-2026-46295)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in __kvm_apic_update_irr and KVM x86 LAPIC interrupt handling when synchronizing posted interrupts to the IRR in nested virtualization. A local user can trigger the race during nested VM interrupt delivery to cause a denial of service.

The issue causes a spurious kernel WARNING and a wasted L2 VM-Enter/VM-Exit cycle, while the pending interrupt is not lost.

288) Out-of-bounds write (CVE-ID: CVE-2026-46294)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local privileged user to cause a buffer overflow.

The vulnerability exists due to a buffer overflow in dm-ioctl retrieve_status when processing device mapper ioctl output buffers. A local privileged user can supply a crafted buffer layout to cause a buffer overflow.

Exploitation requires issuing device mapper ioctls, and the issue does not occur accidentally with commonly used libraries because they use 8-byte-aligned buffer sizes.

289) Out-of-bounds write (CVE-ID: CVE-2026-46293)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds write in mpfs_ccc_register_outputs() in the Microchip PolarFire SoC clock driver when registering clock outputs. A local user can trigger registration of affected outputs to cause a denial of service.

The issue occurs during registration of the last two outputs because sparse clock IDs are packed into the hws array.

290) Improper resource shutdown or release (CVE-ID: CVE-2026-46292)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown in genpd_dev_pm_detach() for virtual devices in the generic PM domain core when detaching a device from a PM domain after attachment through genpd_dev_pm_attach_by_id(). A local user can trigger device detach handling to cause a denial of service.

In worst cases, the issue may result in a NULL pointer dereference in genpd_runtime_suspend().

291) Inclusion of Sensitive Information in Log Files (CVE-ID: CVE-2026-46291)

CWE-ID: CWE-532 - Information Exposure Through Log Files

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to insertion of sensitive information into log files in hash_digest_key in the caam hash implementation when debug hex dumps are generated with CONFIG_DYNAMIC_DEBUG enabled. A local user can read exposed HMAC key bytes from debug output to disclose sensitive information.

The issue affects HMAC key material handled by the CAAM crypto driver.

292) Improper handling of exceptional conditions (CVE-ID: CVE-2026-46290)

CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper exceptional-condition handling in efi_crash_gracefully_on_page_fault() when processing EFI runtime service calls that trigger page faults. A local user can trigger a page fault during an EFI runtime service call to cause a denial of service.

Only systems with buggy firmware that triggers page faults during EFI runtime calls are affected.

293) Use-after-free (CVE-ID: CVE-2026-46275)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the hci_uart line discipline lifecycle management when closing or initializing a Bluetooth HCI UART device. A local user can trigger a hangup or race the close and initialization paths to cause a denial of service.

The issue involves workqueue handling and teardown ordering in the close and initialization error paths.

294) Use-after-free (CVE-ID: CVE-2026-46274)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free in io_wq_remove_pending() and hash_tail handling in io_uring when cancelling hashed bucket-0 work with a non-hashed predecessor in the work list. A local user can trigger cancellation and subsequent hashed work insertion to execute arbitrary code.

The dangling pointer can persist for the lifetime of the task because the io_wq is per-task and survives ring open and close operations.

295) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-46273)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of segmentation offload constraints in ibmveth when processing gso packets with a small mss. A local user can send specially crafted packets to cause a denial of service.

The issue is triggered when the hardware performs segmentation with more than one segment and an MSS smaller than 224 bytes; single-segment GSO packets do not trigger the affected code path.

296) Use-after-free (CVE-ID: CVE-2026-46242)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to a use-after-free in ep_remove() in fs/eventpoll.c when removing epoll file references during a race with file release handling. A local user can trigger a race condition to cause memory corruption.

The issue involves the epoll-watches-epoll case and a concurrent __fput() path that can lead to operations on freed structures.

297) Use-after-free (CVE-ID: CVE-2026-46241)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the mpc52xx spi controller driver when controller registration fails. A local user can trigger a controller registration failure to cause a denial of service.

The issue may also result in a resource leak.

298) Use-after-free (CVE-ID: CVE-2026-46240)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in iris_release_internal_buffers() when releasing internal buffers. A local user can trigger the vulnerable buffer release path to cause a denial of service.

299) Improper resource shutdown or release (CVE-ID: CVE-2026-46239)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the s_ctrl handler of the ov5647 media i2c driver when processing AUTOGAIN, EXPOSURE_AUTO, or ANALOGUE_GAIN control operations. A local user can trigger the affected control paths to cause a denial of service.

300) Use-after-free (CVE-ID: CVE-2026-46238)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the BAT IV neighbor state when handling purge operations on cached originator data. A local user can trigger network state changes that cause a stale originator pointer to be dereferenced to cause a denial of service.

301) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-46236)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of dma coherency restrictions in xbox_remote when performing device i/o. A local user can trigger device i/o involving the improperly placed buffer to cause a denial of service.

302) NULL pointer dereference (CVE-ID: CVE-2026-46235)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in saa7164_dev_setup() when mapping PCI BAR memory regions. A local attacker can trigger memory mapping failures to cause a denial of service.

303) Improper input validation (CVE-ID: CVE-2026-46234)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to consume more socket memory than intended.

The vulnerability exists due to improper input validation in vsock_update_buffer_size() when processing user-controlled buffer size settings. A local user can set a minimum buffer size larger than the maximum to consume more socket memory than intended.

304) NULL pointer dereference (CVE-ID: CVE-2026-46233)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in batadv_bla_purge_claims() when traversing the list of claims during concurrent claim release. A local user can trigger concurrent claim handling to cause a denial of service.

The issue occurs because a claim being released may have its backbone_gw pointer set to NULL before delayed RCU freeing completes.

305) Out-of-bounds read (CVE-ID: CVE-2026-46232)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows an attacker with physical access to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in dualshock4_parse_report when processing a crafted HID report from a malicious device. An attacker with physical access can provide a device that misreports the number of touch reports to disclose sensitive information.

Data is exposed via evdev when the DS4_TOUCH_POINT_INACTIVE bit is set.

306) Memory leak (CVE-ID: CVE-2026-46231)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in batadv_bla_add_claim() when handling a failed claim hash insert. A local user can trigger an error path that leaks a reference to a backbone_gw object to cause a denial of service.

307) Out-of-bounds read (CVE-ID: CVE-2026-46230)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in the amdgpu vcn3 decoder message parser when parsing decoder messages from a buffer object. A local user can supply a specially crafted decoder message to disclose sensitive information.

308) Improper Initialization (CVE-ID: CVE-2026-46229)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to improper initialization in the KFD VRAM allocation path when allocating VRAM buffers for compute kernels. A local user can allocate VRAM buffers and observe stale data from prior use to disclose sensitive information.

Stale page table remnants may be exposed in user buffers.

309) Improper resource shutdown or release (CVE-ID: CVE-2026-46228)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the ch341 spi usb driver when the driver is unbound without the device being physically disconnected. A local user can trigger driver unbind conditions to cause a denial of service.

This can occur during probe deferral or configuration changes.

310) Use-after-free (CVE-ID: CVE-2026-46227)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free and type confusion in sctp_sendmsg() SCTP_SENDALL path when iterating associations after sctp_sendmsg_to_asoc() drops and reacquires the socket lock. A local user can trigger concurrent association migration or freeing to execute arbitrary code.

The issue is reachable with no effective capabilities, and the type-confusion path can lead to a controlled indirect call via the outqueue.sched->init_sid pointer.

311) Improper resource shutdown or release (CVE-ID: CVE-2026-46226)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the fsl spi controller driver when the driver is unbound. A local user can trigger driver unbind while the controller is still registered to cause a denial of service.

312) Improper resource shutdown or release (CVE-ID: CVE-2026-46225)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the rspi driver controller deregistration logic when the driver is unbound. A local user can trigger driver unbind while the controller is still registered to cause a denial of service.

313) Improper resource shutdown or release (CVE-ID: CVE-2026-46224)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in xe_dma_buf_init_obj() when handling allocation failures. A local user can trigger an allocation failure during dma-buf object initialization to cause a denial of service.

314) Race condition (CVE-ID: CVE-2026-46223)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in cgroup rmdir handling when removing a cgroup while zombie reaping and pid namespace teardown are in progress. A local user can trigger cgroup removal in this state to cause a denial of service.

The issue can lead to an A-A deadlock because the reaper can block in an uninterruptible wait while the resources it is waiting on cannot be released.

315) NULL pointer dereference (CVE-ID: CVE-2026-46222)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the rkcif media driver pads when enabling the stream with pads not connected to devices. A local user can issue a stream-on ioctl to trigger a kernel crash to cause a denial of service.

316) Memory leak (CVE-ID: CVE-2026-46221)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in init_one_mc() when registering and removing devices. A local user can trigger the affected code path to cause a denial of service.

317) Reachable assertion (CVE-ID: CVE-2026-46220)

CWE-ID: CWE-617 - Reachable Assertion

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to reachable assertion use in sdma_v4_0_ring_emit_fence() when processing crafted DRM_IOCTL_AMDGPU_CS submissions. A local user can submit a specially crafted command submission request to cause a denial of service.

The issue can trigger a fatal kernel panic in a scheduler worker thread when a misaligned fence writeback address reaches the fence emission path.

318) Use-after-free (CVE-ID: CVE-2026-46219)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to execute arbitrary code.

The vulnerability exists due to use-after-free in the mpc52xx SPI driver state machine work handling when processing an unbind operation after an interrupt schedules work. A local attacker can trigger device unbinding while scheduled work remains pending to execute arbitrary code.

319) Out-of-bounds read (CVE-ID: CVE-2026-46218)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in ib_get_value and ib_set_value when processing indirect buffer data at predefined offsets. A local user can supply a specially crafted indirect buffer to cause a denial of service.

The issue affects the uvd, vce, and vcn code paths.

320) NULL pointer dereference (CVE-ID: CVE-2026-46216)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in intel_hdcp_gsc_check_status() when handling a system state where media_gt is disabled via configfs. A local user can trigger the vulnerable code path to cause a denial of service.

The issue occurs when media GT is disabled and media_gt remains NULL.

321) Use-after-free (CVE-ID: CVE-2026-46215)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition leading to use-after-free in drm change_handle when handling concurrent gem_close operations during a prime handle swap. A local user can trigger concurrent handle operations to cause a denial of service.

322) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-46214)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper state management in virtio_transport_recv_listen() when handling connection attempts with a transport mismatch. A remote attacker can trigger repeated transport mismatch failures to cause a denial of service.

After enough such failures, the listener rejects all new connections because the accept queue backlog count remains permanently incremented.

323) Use-after-free (CVE-ID: CVE-2026-46213)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the appletb-kbd inactivity timer cleanup path when handling driver tear-down and timer re-arming through HID event callbacks. A local user can trigger driver removal or error-handling conditions to cause a denial of service.

The issue can be reached through two race windows during cleanup, including concurrent backlight device unbind activity and late HID event callbacks that re-arm the timer.

324) Use-after-free (CVE-ID: CVE-2026-46212)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in batadv_bla_del_backbone_claims() when deleting backbone claims. A local user can trigger claim deletion to cause a denial of service.

325) NULL pointer dereference (CVE-ID: CVE-2026-46211)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in msm_ioctl_gem_info_get_metadata() when handling a metadata retrieval ioctl request after memory allocation failure. A local user can trigger allocation failure and invoke the ioctl to cause a denial of service.

326) Use-after-free (CVE-ID: CVE-2026-46210)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the MBPF checker when processing concurrent instance teardown and core list iteration. A local user can trigger concurrent operations that free fmt_src while it is still referenced from the core list to cause a denial of service.

The issue occurs because instance-specific locking and core list locking protect different scopes, allowing a dangling pointer to be dereferenced during parallel instance handling.

327) Integer overflow (CVE-ID: CVE-2026-46209)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform out-of-bounds read or write operations.

The vulnerability exists due to an integer overflow in drm_gem_fb_init_with_funcs() when initializing framebuffer plane dimensions for sub-sampled pixel formats. A local user can create a specially crafted framebuffer configuration to perform out-of-bounds read or write operations.

The issue can occur for certain pixel format and dimension combinations where plane height calculation truncates instead of rounding up, causing the GEM object size check to accept an undersized object.

328) Use-after-free (CVE-ID: CVE-2026-46208)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in tp_meter session handling during mesh teardown when processing tp_meter sessions as a mesh interface is being removed. A local user can trigger tp_meter activity during interface teardown to cause a denial of service.

329) Use of uninitialized resource (CVE-ID: CVE-2026-46207)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to disclose sensitive information.

The vulnerability exists due to uninitialized memory exposure in virtio_transport_build_skb() when processing non-linear skbs for delivery to the vsockmon tap device. A local attacker can trigger handling of a specially crafted non-linear skb to disclose sensitive information.

The issue affects payload copying to the monitor interface, where no payload is copied and data remains uninitialized.

330) Race condition (CVE-ID: CVE-2026-46206)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in tp_meter when starting new sender or receiver sessions after mesh_state has left BATADV_MESH_ACTIVE. A local user can start a new tp_meter sender or receiver session during teardown to cause a denial of service.

331) Improper access control (CVE-ID: CVE-2026-46205)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform unauthorized ioctl operations.

The vulnerability exists due to improper access control in private ioctl handlers when handling ioctl commands. A local user can invoke a non-zero private ioctl command to perform unauthorized ioctl operations.

332) Out-of-bounds read (CVE-ID: CVE-2026-46204)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to out-of-bounds read in the amdgpu vcn4 IB parser when parsing IB data. A local user can provide a specially crafted IB to disclose sensitive information.

333) Exposure of Resource to Wrong Sphere (CVE-ID: CVE-2026-46203)

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper access to hardware registers in cadence-quadspi driver unbind handling when unbinding the driver while the controller is runtime suspended. A local user can trigger driver unbind to cause a denial of service.

334) Improper locking (CVE-ID: CVE-2026-46202)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper execution of a blocking operation in atomic context in the hid-appletb-kbd driver when handling keyboard and input events or inactivity timeouts. A local user can trigger crafted input activity to cause a denial of service.

335) Improper resource shutdown or release (CVE-ID: CVE-2026-46201)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in xe_gem_prime_import() when handling dma-buf imports after xe_dma_buf_init_obj() fails. A local user can trigger an error during dma-buf import to cause a denial of service.

336) Improper resource shutdown or release (CVE-ID: CVE-2026-46200)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the mpc52xx spi controller driver when the driver is being unbound. A local user can trigger driver unbind operations to cause a denial of service.

337) Out-of-bounds read (CVE-ID: CVE-2026-46199)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to out-of-bounds read in the drm/amdgpu vcn4 decoder message parser when parsing a decoder message from a buffer object. A local user can provide a specially crafted decoder message to disclose sensitive information.

338) Integer overflow (CVE-ID: CVE-2026-46198)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an integer overflow in batadv_iv_ogm_send_to_if when processing aggregated OGM packets. A local user can trigger the flawed size calculation to disclose sensitive information.

339) Out-of-bounds read (CVE-ID: CVE-2026-46197)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to out-of-bounds read in the SVM ioctl handler when processing a user-controlled attribute count. A local user can supply a crafted ioctl request to cause a denial of service.

340) Improper resource shutdown or release (CVE-ID: CVE-2026-46196)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in tracepoint_add_func() when handling tracepoint registration failures after invoking ext->regfunc(). A local user can trigger a func_add() failure during probe installation to cause a denial of service.

For syscall tracepoints, the issue can leave syscall tracing state enabled and impose persistent syscall entry and exit overhead until reboot.

341) Race condition (CVE-ID: CVE-2026-46194)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in the f2fs extent tree handling in __destroy_extent_node() and __update_extent_tree_range() when concurrent inode drop and writeback operations occur. A local user can trigger concurrent writeback during extent node destruction to cause a denial of service.

The issue can trigger f2fs_bug_on() because new extent nodes may be inserted into the same extent tree while extent nodes are being destroyed, and EX_BLOCK_AGE updates were left unprotected.

342) Incorrect calculation (CVE-ID: CVE-2026-46193)

CWE-ID: CWE-682 - Incorrect Calculation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of ESN high bits in async callbacks in the AH implementation when processing AH packets with ESN enabled using an asynchronous AH implementation. A local user can send specially crafted AH traffic to cause a denial of service.

The issue affects both IPv4 and IPv6 AH paths, and exploitation requires ESN to be enabled with an asynchronous AH implementation selected.

343) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-46192)

CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in microchip-core-qspi when handling emulated read-only dual/quad operations. A local user can trigger a crafted QSPI read operation to cause a denial of service.

The issue can brick the transfer because the driver attempts to transmit garbage data during read handling.

344) Out-of-bounds write (CVE-ID: CVE-2026-46191)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to out-of-bounds write in fbcon_rotate_font() and the rotated font buffer handling in fbcon when printing to a rotated console after console rotation reallocation fails. A local user can print a high-enough character code to overflow the font buffer to cause a denial of service.

Exploitation requires a console to be using rotation and the font reallocation during rotation to fail.

345) Out-of-bounds read (CVE-ID: CVE-2026-46190)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in spi_nor_params_show() when displaying SPI NOR parameters through debugfs. A local attacker can trigger access to debugfs output to disclose sensitive information.

The issue is caused by passing the byte size of an array of pointers instead of the actual element count, which can permit reads past the end of the names array on 64-bit systems when certain flag bits are set.

346) Double free (CVE-ID: CVE-2026-46189)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free in pvrdma_alloc_ucontext() error path when handling ucontext allocation failures. A local user can trigger the error path to cause a denial of service.

347) NULL pointer dereference (CVE-ID: CVE-2026-46188)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in __octep_vf_oq_process_rx() when processing received packets after napi_build_skb() allocation failure. A local user can trigger allocation failure conditions to cause a denial of service.

348) Use-after-free (CVE-ID: CVE-2026-46187)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in the rsi wifi driver kthread handling logic when stopping a kernel thread after it has already self-exited. A local user can trigger the race condition to cause a denial of service.

The issue occurs in the rare case where self-exit via kthread_complete_and_exit() happens before an external stop via kthread_stop().

349) Out-of-bounds read (CVE-ID: CVE-2026-46186)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in virtbt_rx_handle() and Bluetooth HCI packet classification when processing a backend-supplied RX packet with an insufficient header length. A local user can provide a specially crafted RX completion with a truncated packet to disclose sensitive information.

The issue can be triggered when the virtio Bluetooth device has an active CIS_LINK, BIS_LINK, or PA_LINK connection.

350) Improper input validation (CVE-ID: CVE-2026-46184)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to improper input validation in detect_usb_format() when processing class-specific USB descriptor fields from a connected device. An attacker with physical access can provide a crafted USB device with bNrChannels set to 0 to cause a denial of service.

The issue can lead to a kernel crash in playback_urb_complete() and capture_urb_complete() because a zero frame_bytes value is later used as a divisor.

351) Use-after-free (CVE-ID: CVE-2026-46183)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to use-after-free in damon_sysfs_quot_goal->path handling in the DAMON sysfs 'path' file when performing concurrent reads and writes through separate open files. A local user can trigger concurrent access to read freed memory and disclose sensitive information.

The issue does not race when the same open file is used for both operations due to kernfs open file locking.

352) Use of Uninitialized Variable (CVE-ID: CVE-2026-46182)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to uninitialized stack memory in papr_hvpipe when copying a header structure to userspace. A local user can trigger the affected operation to disclose sensitive information.

The issue is caused by uninitialized padding bytes in the structure being exposed through copy_to_user().

353) Race condition (CVE-ID: CVE-2026-46181)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in mlx4_srq_event() when handling RDMA SRQ events. A local user can trigger an event for a partially initialized srq object to cause a denial of service.

The issue can occur if an event is delivered before the srq object has finished initializing.

354) Use-after-free (CVE-ID: CVE-2026-46180)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in the brcmfmac watchdog task handling when stopping the watchdog task. A local user can trigger the watchdog task shutdown to cause a denial of service.

355) Division by zero (CVE-ID: CVE-2026-46179)

CWE-ID: CWE-369 - Divide By Zero

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to divide by zero in compressed stream pointer reporting when reporting the pointer for an unconfigured stream. A local user can trigger pointer operations on an unconfigured compressed stream to cause a denial of service.

356) Improper resource shutdown or release (CVE-ID: CVE-2026-46178)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in mlx4_ib_create_srq() when handling error conditions during SRQ creation. A local user can trigger an error during SRQ creation to cause a denial of service.

357) Excessive Iteration (CVE-ID: CVE-2026-46177)

CWE-ID: CWE-834 - Excessive Iteration

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper restriction of excessive iteration in the ipmi driver when processing event and receive message fetches from a BMC that continues reporting available data. A local user can trigger interaction with a malfunctioning or malicious BMC to cause a denial of service.

The issue can also be triggered when the si interface attention state remains stuck and repeatedly causes flag fetch handling.

358) Use-after-free (CVE-ID: CVE-2026-46176)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free and double free in mlx5_ib_dev_res_srq_init() when handling an error during SRQ initialization after ib_create_srq() fails for the second SRQ. A local user can trigger the faulty initialization path to cause a denial of service.

The issue occurs because freed and error-pointer SRQ values are stored and later dereferenced during queue pair creation and cleanup.

359) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-46175)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause file system inconsistency.

The vulnerability exists due to improper state management in f2fs node block migration when performing foreground garbage collection of node blocks. A local user can trigger node block migration and subsequent file system checking to cause file system inconsistency.

The issue occurs because dentry and fsync marks are not cleared during foreground garbage collection, which can cause fsck to misinterpret migrated node blocks as fsync-written data.

360) Exposure of Resource to Wrong Sphere (CVE-ID: CVE-2026-46174)

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause instruction corruption.

The vulnerability exists due to improper isolation of shared resources in Zen2 op cache when executing code on the system. A local user can run code locally to cause instruction corruption.

361) Use-after-free (CVE-ID: CVE-2026-46173)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to use-after-free in make_task_dead()/do_task_dead() task exit handling when an already-exiting task oopses during task exit. A local user can trigger an oops in a file_operations::release handler to cause memory corruption.

This can result in two tasks running on the same stack.

362) Memory leak (CVE-ID: CVE-2026-46172)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a memory leak in xfrm6_rcv_encap() when processing IPv6 packets that trigger an error route lookup. A remote attacker can send specially crafted packets to cause a denial of service.

Repeated packets hitting this path leak dst entries.

363) Memory leak (CVE-ID: CVE-2026-46171)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in kvm_riscv_vcpu_alloc_vector_context when allocating vector context buffers. A local user can trigger the allocation failure path to cause a denial of service.

364) Improper resource shutdown or release (CVE-ID: CVE-2026-46170)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the mptcp path manager ADD_ADDR retransmission timer handling when processing ADD_ADDR retransmissions. A local user can trigger ADD_ADDR retransmissions to cause a system hang.

The issue occurs when the last socket reference is released from the timer handler, leading to an indefinite wait on the same timer.

365) Use of Uninitialized Variable (CVE-ID: CVE-2026-46169)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to uninitialized memory use in hfs_brec_read() and catalog record handling in the hfsplus filesystem code when mounting a corrupted filesystem. A local user can mount a specially crafted filesystem image to cause a denial of service.

366) Improper locking (CVE-ID: CVE-2026-46168)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in timestamp socket option handling when setting timestamp-related socket options. A local user can invoke timestamp socket option operations to cause a denial of service.

367) Heap Inspection (CVE-ID: CVE-2026-46167)

CWE-ID: CWE-244 - Improper Clearing of Heap Memory Before Release ('Heap Inspection')

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows an attacker with physical access to disclose sensitive information.

The vulnerability exists due to uninitialized heap memory exposure in the usblp driver LPGETSTATUS ioctl path when processing a status response from a connected USB printer. An attacker with physical access can cause a malicious printer to return zero bytes in response to a status request to disclose sensitive information.

The issue occurs because the status buffer may contain stale heap data before the first LPGETSTATUS ioctl call.

368) Use-after-free (CVE-ID: CVE-2026-46166)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in radar detect work in mac80211 when cancelling dfs cac during list iteration. A local user can trigger the affected workflow to cause a denial of service.

369) Improper locking (CVE-ID: CVE-2026-46165)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper locking in the openvswitch vport release logic when removing tunnel ports. A local user can trigger device removal to cause a denial of service.

The issue results in a self-deadlock during device removal because the RCU callback that releases the reference is not reached.

370) Double free (CVE-ID: CVE-2026-46164)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free in create_space_info_sub_group() when handling an error from kobject_init_and_add(). A local user can trigger the error path to cause a denial of service.

371) Out-of-bounds read (CVE-ID: CVE-2026-46163)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in b43legacy_rx() when processing received frames with a firmware-controlled key index. A remote attacker can supply a crafted key index value to disclose sensitive information.

372) Double free (CVE-ID: CVE-2026-46162)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a double free in ice_sf_eth_activate() when handling an auxiliary_device_add() failure. A local user can trigger the error path to cause a denial of service.

373) Division by zero (CVE-ID: CVE-2026-46161)

CWE-ID: CWE-369 - Divide By Zero

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to divide-by-zero in setup_geo() when processing a user-provided layout parameter with zero far_copies and the improved far set layout selected. A local user can supply a crafted layout value to cause a denial of service.

The issue is triggered when far_copies is zero under the improved far set layout.

374) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-46160)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause filesystem corruption and a denial of service.

The vulnerability exists due to improper state update in the btrfs directory unlink handling when removing a directory and later fsyncing it through an open file descriptor. A local user can remove a directory, retain a file descriptor to it, and trigger fsync to cause filesystem corruption and a denial of service.

The issue can cause log replay to fail with an -EIO error when the filesystem is mounted.

375) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-46159)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to a time-of-check time-of-use race in btrfs_ioctl_space_info() when processing a space information ioctl request while block groups are concurrently removed. A local user can trigger the ioctl and race concurrent block group removal to disclose sensitive information.

The issue can result in copying uninitialized kmalloc heap bytes to userspace.

376) Improper resource shutdown or release (CVE-ID: CVE-2026-46158)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the mptcp path manager ADD_ADDR retransmission handling when retransmitting ADD_ADDR messages. A local user can trigger ADD_ADDR retransmissions to cause a denial of service.

377) Race condition (CVE-ID: CVE-2026-46157)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a data race in the ALSA pcm oss subsystem when accessing the runtime.oss.trigger field concurrently. A local user can trigger concurrent access to confuse operation and cause a denial of service.

The issue involves a bit field, so concurrent writes may overwrite other bit fields as well.

378) Improper input validation (CVE-ID: CVE-2026-46156)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in loongson_gpu_fixup_dma_hang() when scanning PCI devices during system initialization. A local user can attach a discrete GPU in a configuration that causes an invalid register address to be used to trigger a kernel panic.

The issue occurs on LoongArch systems when a discrete GPU is present and the switch logic does not match the expected device cases.

379) Use-after-free (CVE-ID: CVE-2026-46154)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in scx_group_set_{weight,idle,bandwidth}() and sched_ext cgroup setters when racing scheduler disable and enable operations while handling cgroup setting changes. A local user can trigger concurrent cgroup setter activity to dereference a freed scheduler pointer and cause a denial of service.

The issue occurs because a cached scx_root pointer can become stale before scx_cgroup_ops_rwsem is acquired.

380) Improper resource shutdown or release (CVE-ID: CVE-2026-46153)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in vlan_dev_set_egress_priority() when repeatedly setting and clearing egress priority mappings with distinct skb priorities. A local user can trigger repeated set and clear operations to cause a denial of service.

The issue results in mapping nodes being retained until device teardown, leading to memory consumption over time.

381) Race condition (CVE-ID: CVE-2026-46152)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause incorrect packet processing.

The vulnerability exists due to a race condition in ieee80211_invoke_fast_rx() when processing packets in parallel RX paths. A local user can trigger concurrent packet processing to cause incorrect packet processing.

This issue arises because concurrent callers share a single rx_result instance, which can be overwritten between ieee80211_rx_mesh_data() and the subsequent switch on the result.

382) Use of uninitialized resource (CVE-ID: CVE-2026-46151)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows an attacker with physical access to disclose sensitive information.

The vulnerability exists due to uninitialized memory exposure in the usblp driver when processing a short IEEE 1284 GET_DEVICE_ID control response from a connected USB printer. An attacker with physical access can connect a specially crafted device that returns a truncated response with a forged length field to disclose sensitive information.

The leaked data may be exposed through the ieee1284_id sysfs attribute and the IOCNR_GET_DEVICE_ID ioctl.

383) Improper access control (CVE-ID: CVE-2026-46150)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass permission checks.

The vulnerability exists due to improper access control in fsnotify_get_mark_safe() when processing fanotify permission events. A local user can trigger permission events in the presence of an unrelated detached mark to bypass permission checks.

384) Out-of-bounds read (CVE-ID: CVE-2026-46149)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in tg_pt_gp_members_show() when formatting and copying LUN paths to a sysfs reader. A local user can read the affected sysfs entry with a long fabric WWN value to disclose sensitive information.

When CONFIG_FORTIFY_SOURCE is enabled, exploitation triggers fortify_panic() instead of leaking adjacent stack contents.

385) Improper access control (CVE-ID: CVE-2026-46148)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to interfere with SPI communications.

The vulnerability exists due to improper access control in the microchip-core-qspi driver when handling chip select lines for transfers involving multiple SPI devices. A local user can trigger access to a device attached via GPIO chip select while the built-in chip select is incorrectly asserted to interfere with SPI communications.

The issue occurs when multiple devices are attached to the QSPI controller and the built-in chip select is used alongside GPIO-based chip selects.

386) Race condition (CVE-ID: CVE-2026-46147)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in register_hyp_vcpu() and pkvm_load_hyp_vcpu() when publishing and loading vCPU pointers during vCPU initialization. A local user can trigger concurrent access to cause a denial of service.

A concurrent reader may observe a partially initialized hyp_vcpu object.

387) Improper resource shutdown or release (CVE-ID: CVE-2026-46147)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in __pkvm_init_vcpu() when initializing a vCPU after shared memory has been pinned and a subsequent check fails. A local user can trigger the error path to cause a denial of service.

The issue can permanently leak pin references on the host vCPU and SVE state pages.

388) Improper input validation (CVE-ID: CVE-2026-46146)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in convert_chmap_v3() when parsing a malformed USB audio descriptor. A local user can connect or present a specially crafted USB audio device to trigger an endless loop and cause a denial of service.

389) Out-of-bounds write (CVE-ID: CVE-2026-46145)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to overwrite kernel memory.

The vulnerability exists due to an out-of-bounds write in the RDMA/mana rx hash key handling when processing a user-supplied uAPI structure. A local user can supply a crafted rx_hash_key_len value to overwrite kernel memory.

390) Improper resource shutdown or release (CVE-ID: CVE-2026-46144)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in mana_ib_create_qp_rss() when handling queue pair creation errors. A local user can trigger an error during queue pair creation to cause a denial of service.

391) Improper resource shutdown or release (CVE-ID: CVE-2026-46143)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in q6apm-lpass-dai when prepare is called multiple times for the playback path. A local user can repeatedly trigger prepare to cause a denial of service.

392) Improper access control (CVE-ID: CVE-2026-46142)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper access to a restricted register in net: libwx when initializing a virtual function device. A local user can initialize a virtual function to cause a denial of service.

The issue is triggered when a virtual function attempts to read the PF-restricted register WX_CFG_PORT_ST, leading to a system hang.

393) Improper resource shutdown or release (CVE-ID: CVE-2026-46141)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in xive_irq_free_data() in the powerpc XIVE interrupt handling code when freeing MSI-X irqdomain data for an NVMe device. A local user can trigger allocation and release of MSI-X vectors to cause a denial of service.

394) Out-of-bounds read (CVE-ID: CVE-2026-46140)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in btmtk_usb_hci_wmt_sync() when processing a short firmware response in a WMT event SKB. A local attacker can provide a specially crafted short firmware response to disclose sensitive information.

395) Use of uninitialized resource (CVE-ID: CVE-2026-46139)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to uninitialized memory in build_sec_desc() when building an ACL descriptor. A local user can trigger construction of a security descriptor with a non-zero reserved field to cause a denial of service.

The issue can cause chmod to fail with EINVAL when the malformed security descriptor is rejected.

396) Out-of-bounds read (CVE-ID: CVE-2026-46138)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in hci_le_create_big_complete_evt when processing a crafted LE_Create_BIG_Complete event. A remote attacker can send a specially crafted Bluetooth controller event to cause a denial of service.

The issue can also result in an infinite loop while hci_dev_lock is held when the event contains fewer bis_handle entries than expected or num_bis is zero.

397) Integer underflow (CVE-ID: CVE-2026-46136)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to integer underflow in the clc buffer length handling in the mt7921 driver when retrieving the country power setting. A local user can trigger the vulnerable code path to cause a denial of service.

The issue may result in an almost infinite loop or an invalid power setting that causes driver initialization failure.

398) NULL pointer dereference (CVE-ID: CVE-2026-46134)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in cros_typec_register_thunderbolt() and cros_typec_altmode_work() when handling Thunderbolt registration and later altmode work processing. A local user can trigger the vulnerable code path to cause a denial of service.

399) Out-of-bounds read (CVE-ID: CVE-2026-46133)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in rxe_icrc_hdr() and opcode handling in the Soft RoCE receive path when processing a specially crafted UDP packet with an unknown RDMA opcode. A remote attacker can send a specially crafted UDP packet to trigger an out-of-bounds read and cause a denial of service.

The issue can be triggered without authentication after the RDMA RXE interface is enabled, and no queue pair or connection setup is required.

400) Use of Uninitialized Variable (CVE-ID: CVE-2026-46132)

CWE-ID: CWE-457 - Use of Uninitialized Variable

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to disclose sensitive information.

The vulnerability exists due to uninitialized stack memory in rtnl_fill_vfinfo when handling RTM_GETLINK requests with an IFLA_EXT_MASK attribute carrying RTEXT_FILTER_VF. A local attacker can send a crafted netlink request to disclose sensitive information.

The issue can leak up to 26 bytes of uninitialized kernel stack per virtual function per request to userspace.

401) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-46131)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper check of nested EPT/NPT state in KVM x86 slow flush hypercalls when handling hypercalls from a nested guest. A local user can trigger the affected hypercall path to cause a denial of service.

Exploitation requires a nested virtualization scenario in which an L2 guest is running.

402) Out-of-bounds read (CVE-ID: CVE-2026-46130)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in fec_decode_bufs() in dm-verity-fec when decoding parity bytes split across parity blocks. A local user can trigger the vulnerable code path to disclose sensitive information.

The issue occurs only for certain non-default fec_roots values and when the maximum number of buffers cannot be allocated due to low-memory conditions.

403) Double free (CVE-ID: CVE-2026-46129)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to double free in create_space_info() when handling an error after a failed kobject_init_and_add() call. A local user can trigger the vulnerable error path to cause a denial of service.

404) Improper input validation (CVE-ID: CVE-2026-46128)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the ipmi event message buffer response handling when processing event message buffer responses from a BMC. A local user can trigger processing of a malformed or empty response to cause a denial of service.

Some BMCs may return an empty message instead of an error when events are fetched.

405) NULL pointer dereference (CVE-ID: CVE-2026-46127)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in ocrdma_copy_pd_uresp() when handling error conditions. A local user can trigger an error path to cause a denial of service.

406) Double free (CVE-ID: CVE-2026-46126)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a double free in mana_destroy_wq_obj() cleanup in mana_ib_create_qp_rss() when unwinding error paths during queue pair creation. A local user can trigger a failure during queue pair creation to cause a denial of service.

407) Use-after-free (CVE-ID: CVE-2026-46125)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in debugfs when handling failed connection preparation for mlo connections. A local user can trigger connection preparation failure and access the affected debugfs state to cause a denial of service.

The issue occurs when debugfs is enabled and an interface is reset from mld to non-mld, which recreates its debugfs entries.

408) Improper input validation (CVE-ID: CVE-2026-46124)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to improper input validation in isofs_export_iget when processing block numbers from NFS file handles. A remote user can send a crafted NFS file handle to disclose sensitive information.

Exploitation requires an authenticated NFS peer and affects isofs exported over NFS from loop-mounted images.

409) Out-of-bounds read (CVE-ID: CVE-2026-46123)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in virtbt_rx_work() and virtbt_rx_handle() when processing device-reported receive lengths from the virtio Bluetooth backend. A local attacker can provide a crafted length value to cause the kernel to read uninitialized memory and disclose sensitive information.

The issue can be triggered when the backend reports a receive length larger than the 1000-byte buffer exposed to the device, or when it reports an empty completion with a zero length.

410) Out-of-bounds read (CVE-ID: CVE-2026-46122)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in b43_rx() when processing firmware-provided key index values. A local attacker can supply an invalid key index to disclose sensitive information.

The issue occurs because the firmware-controlled key index can exceed the dev->key[] array size of 58 entries.

411) Use-after-free (CVE-ID: CVE-2026-46121)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in DAMON sysfs memcg_path file handling when performing concurrent reads and writes through separate open files. A local user can trigger concurrent access to a freed buffer to cause a denial of service.

The issue affects user-driven direct reads and writes, while reads performed during parameter committing are separately synchronized.

412) Use-after-free (CVE-ID: CVE-2026-46120)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in ip6erspan_changelink() when changing link configuration after network namespace migration. A local user can trigger tunnel reinsertion into the wrong per-netns hash to cause a denial of service.

The issue is reachable from an unprivileged user namespace.

413) NULL pointer dereference (CVE-ID: CVE-2026-46118)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in papr_hvpipe_dev_create_handle() when handling an ioctl request. A local user can send a crafted ioctl request to cause a denial of service.

The issue can trigger a kernel panic.

414) Improper input validation (CVE-ID: CVE-2026-46117)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to corrupt kernel memory.

The vulnerability exists due to improper input validation in mana_ib_create_qp_rss() when processing user-supplied work queue configurations through the RDMA uAPI. A local user can specify work queues sharing the same completion queue to corrupt kernel memory.

415) Use-after-free (CVE-ID: CVE-2026-46116)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in __xfrm_state_delete when deleting xfrm_state list entries during xfrm_state lifecycle handling. A local user can trigger repeated deletion of the same xfrm_state object to cause a denial of service.

The issue was reproduced under syzkaller load during network namespace cleanup in the xfrm subsystem.

416) Out-of-bounds read (CVE-ID: CVE-2026-46114)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in atomic_write_reply() in the RDMA rxe responder when processing a crafted ATOMIC_WRITE request with a zero-length logical payload. A remote attacker can send a specially crafted ATOMIC_WRITE request to disclose sensitive information.

The issue can leak kernel tailroom bytes into the attacker's memory region, including recognizable kernel strings and partial pointer words.

417) Use-after-free (CVE-ID: CVE-2026-46113)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a use-after-free in KVM shadow paging when handling guest page table changes between VM entries. A local user can modify guest page tables to create a stale reverse-mapping entry and trigger a stale rmap walk to cause a denial of service.

This can be triggered during operations such as dirty logging or MMU notifier invalidations.

418) Improper locking (CVE-ID: CVE-2026-46112)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to corrupt memory.

The vulnerability exists due to improper locking in hns_roce_create_qp_common() and hns_roce_qp_remove() when handling error unwind during queue pair creation. A local user can trigger the error path to corrupt memory.

419) Use-after-free (CVE-ID: CVE-2026-46111)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to use-after-free in create_big_sync/create_big_complete in the Bluetooth hci_conn handling code when processing BIG creation completion after an asynchronous operation on a stale connection. A local attacker can trigger BIG creation and cause the kernel to dereference a freed connection pointer to cause a denial of service.

420) NULL pointer dereference (CVE-ID: CVE-2026-46110)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in stmmac_rx() and stmmac_rx_zc() in the stmmac driver when processing receive descriptors after RX memory exhaustion. A local attacker can trigger memory starvation and network receive processing to cause a denial of service.

The issue occurs when dirty descriptors with OWN=0 and NULL buffers are mistaken for completed descriptors.

421) Memory leak (CVE-ID: CVE-2026-46109)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a memory leak in ulpi_register() when handling error paths before device registration. A local user can trigger failures in ulpi_of_register() or ulpi_read_id() to cause a denial of service.

422) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-46108)

CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the ipmi:si driver when handling message allocation failures. A local user can trigger a message allocation failure to cause a denial of service.

423) Improper update of reference count (CVE-ID: CVE-2026-46107)

CWE-ID: CWE-911 - Improper Update of Reference Count

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper reference count handling in the dm-thin rebalance_children function when rebalancing internal btree nodes with a shared child node. A local user can trigger the vulnerable code path to cause a denial of service.

The issue occurs because grandchild node reference counts are not increased when the shared child node is retained, which can lead to "device mapper: space map common: unable to decrement block" errors.

424) Race condition (CVE-ID: CVE-2026-46106)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in eventfs remount handling when walking events during remount operations. A local user can trigger concurrent remount and event creation or removal operations to cause a denial of service.

The issue occurs because the walk over eventfs children is performed without the required eventfs mutex and SRCU protection, which can lead to dereference of reclaimed or poisoned list entries.

425) Improper input validation (CVE-ID: CVE-2026-46105)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the mpt3sas NVMe I/O handling logic when processing oversized NVMe I/O requests. A local user can trigger oversized I/O operations to cause a denial of service.

The issue can lead to a kernel oops because the driver uses a fixed 4K PRP list buffer that supports at most 512 entries, limiting transfers to 2 MiB.

426) Improper access control (CVE-ID: CVE-2026-46104)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass SELinux socket permission checks.

The vulnerability exists due to improper access control in sock_has_perm() and nlmsg_sock_has_extended_perms() when handling socket permission checks in stacked LSM configurations. A local user can trigger access checks on a socket with an incorrectly interpreted security blob to bypass SELinux socket permission checks.

The issue occurs when another LSM allocates socket blob storage before SELinux, causing invalid SID and class values to be used in AVC checks.

427) NULL pointer dereference (CVE-ID: CVE-2026-45846)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in bareudp_fill_metadata_dst() when processing Open vSwitch packet execution on a bareudp device that is down. A local user can send a crafted netlink request to trigger a kernel crash and cause a denial of service.

The issue occurs on the IPv6 path when the code uses bareudp->sock after it has been cleared during device shutdown.

428) NULL pointer dereference (CVE-ID: CVE-2026-45845)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in taprio class dump handling when deleting a TAPRIO child qdisc and requesting a class dump. A local user can delete an explicit child qdisc and trigger a class dump to cause a denial of service.

Exploitation is reachable in a network namespace with CAP_NET_ADMIN, and on systems with unprivileged user namespaces enabled, user interaction is not required.

429) Out-of-bounds read (CVE-ID: CVE-2026-45844)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause incorrect packet filtering decisions.

The vulnerability exists due to an out-of-bounds read in arp_packet_match() when parsing ARP payloads on IEEE1394 interfaces. A local user can send a specially crafted ARP packet to cause incorrect packet filtering decisions.

The issue occurs because IPv4-over-IEEE1394 ARP omits the target hardware address field, causing rule evaluation to use incorrect bytes for target address comparisons.

430) Out-of-bounds read (CVE-ID: CVE-2026-45843)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in slhc_uncompress() when parsing a short VJ-compressed TCP header with optional fields requested in the change byte. A remote attacker can send a specially crafted compressed packet to disclose sensitive information.

The over-read bytes are incorporated into cached connection state and may be reflected into subsequent reconstructed packets.

431) NULL pointer dereference (CVE-ID: CVE-2026-45842)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the SLIP/PPP VJ receive handling code when processing inbound VJ-compressed or VJ-uncompressed frames after installing a malformed VJ state with zero receive slots. A local user can configure PPP compression state through /dev/ppp and trigger processing of a frame selecting slot 0 to cause a denial of service.

The issue is reachable through PPPIOCSMAXCID from an unprivileged user namespace.

432) Division by zero (CVE-ID: CVE-2026-45841)

CWE-ID: CWE-369 - Divide By Zero

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to divide-by-zero in nf_osf_match_one() in nfnetlink_osf when processing a subsequent matching TCP SYN after a crafted fingerprint is added via nfnetlink. A local user can add a fingerprint with a zero wss value to trigger a kernel panic.

Exploitation requires CAP_NET_ADMIN privileges.

433) Improper input validation (CVE-ID: CVE-2026-45840)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the openvswitch vport netlink reply helpers when handling a crafted upcall PID array in vport mutation operations. A local user can supply an oversized PID array to trigger a kernel BUG and cause a denial of service.

On systems with unprivileged user namespaces enabled, the issue is reachable via unshare -Urn.

434) Out-of-bounds read (CVE-ID: CVE-2026-45839)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local privileged user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in bpf_core_parse_spec() when processing a crafted BPF program containing negative CO-RE accessor indices. A local privileged user can load a specially crafted BPF program to cause a denial of service.

The issue is reachable during BPF_PROG_LOAD on systems with CONFIG_DEBUG_INFO_BTF enabled.

435) Out-of-bounds read (CVE-ID: CVE-2026-45838)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in cgroup_storage_get_next_key() when processing end-of-list conditions for cgroup storage map keys. A local user can trigger the function on the last list element to disclose sensitive information.

The issue occurs because the code reads a key from a bogus pointer that aliases internal map fields and copies the result to userspace.

436) Use-after-free (CVE-ID: CVE-2026-45837)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to use-after-free in arena_vm_close and bpf_arena_free_pages when handling inherited arena VMAs after a fork. A local user can trigger a stale VMA reference by calling bpf_arena_free_pages() in a child process after the parent unmaps the arena to cause a denial of service.

The issue occurs when an arena VMA is inherited across fork and the child retains a pointer to the parent VMA.

437) NULL pointer dereference (CVE-ID: CVE-2026-45836)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in l2cap_sock_get_sndtimeo_cb() when handling Bluetooth L2CAP socket operations. A local user can trigger the vulnerable code path to cause a denial of service.

438) NULL pointer dereference (CVE-ID: CVE-2026-45835)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in l2cap_sock_new_connection_cb() when handling a new Bluetooth L2CAP connection. A remote attacker can trigger a crafted connection attempt to cause a denial of service.

439) NULL pointer dereference (CVE-ID: CVE-2026-45834)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in l2cap_sock_state_change_cb() when handling Bluetooth L2CAP socket state changes. A local user can trigger the vulnerable callback to cause a denial of service.

440) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-43502)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in rds_message_purge() in the net/rds subsystem when cleaning up a failed zerocopy send before the message is queued. A local user can trigger an early zerocopy send failure to cause a denial of service.

The issue occurs after user pages have been pinned but before the message is attached to the sending socket.

441) Improper access control (CVE-ID: CVE-2026-43498)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause data corruption.

The vulnerability exists due to improper access control in GEM buffer export handling when re-exporting imported GEM objects. A local user can re-export an imported GEM buffer to cause data corruption.

The issue can also lead to incorrect device access because buffer flag settings are lost during re-export.

442) Use-after-free (CVE-ID: CVE-2026-43497)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to read and write freed kernel memory.

The vulnerability exists due to a use-after-free in the udlfb framebuffer mmap handling when replacing the framebuffer while a userspace mapping remains active and the device is later disconnected. A local user can trigger framebuffer reallocation through FBIOPUT_VSCREENINFO and then access stale mapped pages to read and write freed kernel memory.

Exploitation requires an existing userspace mmap of the framebuffer, and the stale mapping remains usable after USB disconnect.

443) NULL pointer dereference (CVE-ID: CVE-2026-43496)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the sch_red qdisc dequeue logic when processing queued packets through child qdiscs whose peek() callback is qdisc_peek_dequeued(). A local user can trigger network traffic through a crafted qdisc hierarchy to cause a kernel panic.

The issue occurs when red qdisc has child qdiscs such as qfq and a parent qdisc retrieves an skb using a peek operation followed by dequeue.

444) Out-of-bounds read (CVE-ID: CVE-2026-43495)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in t7xx_port_enum_msg_handler and t7xx_parse_host_rt_data when parsing modem-supplied messages. A remote attacker can send a specially crafted modem message to disclose sensitive information.

The issue can be triggered by a malformed message with an invalid port_count field or inconsistent feature data length.

445) Integer underflow (CVE-ID: CVE-2026-43492)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to integer underflow in mpi_read_raw_from_sgl() when processing a crafted scatterlist during a KEYCTL_PKEY_ENCRYPT system call. A local user can supply an input buffer of zeroes with a larger out_len than in_len to cause a denial of service.

The issue can cause the kernel to spin forever, resulting in soft lockup splats.

446) Out-of-bounds read (CVE-ID: CVE-2026-43490)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read and out-of-bounds write in smb_inherit_dacl() when processing a parent directory DACL from the security descriptor xattr during ACE inheritance. A remote user can provide a malformed inheritable ACE with an invalid SID length to cause a denial of service.

The issue occurs because the ACE can advertise more SID subauthorities than are actually present, which can lead to reads past the ACE and incorrect inherited ACE size accounting.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-8566-1