SB2026093001 - SUSE update for the Linux Kernel

Description

This security bulletin contains information about 135 vulnerabilities.

1) Improper error handling (CVE-ID: CVE-2024-44981)

CWE-ID: CWE-388 - Error Handling

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling within the get_work_pool() function in kernel/workqueue.c. A local user can perform a denial of service (DoS) attack.

2) Memory leak (CVE-ID: CVE-2024-57841)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the tcp_conn_request() function in net/ipv4/tcp_input.c. A local user can perform a denial of service (DoS) attack.

3) Resource management error (CVE-ID: CVE-2025-38469)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the kvm_xen_schedop_poll() function in arch/x86/kvm/xen.c. A local user can perform a denial of service (DoS) attack.

4) Race condition (CVE-ID: CVE-2025-39964) Exploited

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

CVSSv4: 8.5 [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]

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the include/crypto/if_alg.h. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

5) Input validation error (CVE-ID: CVE-2025-40022)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the include/crypto/if_alg.h. A local user can perform a denial of service (DoS) attack.

6) Buffer overflow (CVE-ID: CVE-2025-68179)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the function in arch/s390/Kconfig. A local user can perform a denial of service (DoS) attack.

7) NULL pointer dereference (CVE-ID: CVE-2025-68214)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the __try_to_del_timer_sync() function in kernel/time/timer.c. A local user can perform a denial of service (DoS) attack.

8) Improper locking (CVE-ID: CVE-2025-71104)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the advance_periodic_target_expiration() function in arch/x86/kvm/lapic.c. A local user can perform a denial of service (DoS) attack.

9) NULL pointer dereference (CVE-ID: CVE-2026-23210)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the drivers/net/ethernet/intel/ice/ice_ptp.h. A local user can perform a denial of service (DoS) attack.

10) Input validation error (CVE-ID: CVE-2026-23230)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the fs/smb/client/cached_dir.h. A local user can perform a denial of service (DoS) attack.

11) Infinite loop (CVE-ID: CVE-2026-23451)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an infinite loop in bond_header_parse() when parsing packet headers in a stack of two bonding devices. A local attacker can trigger packet processing in this configuration to cause a denial of service.

The issue occurs because device recursion can remain bounded to the hierarchy top, leading to repeated parsing instead of reaching the final leaf parse method.

12) Use-after-free (CVE-ID: CVE-2026-23454)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.7 [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]

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

The vulnerability exists due to a use-after-free in mana_hwc_destroy_channel() when tearing down hardware channels while interrupt handlers are still executing. A local attacker can trigger concurrent channel teardown and interrupt handling to cause a denial of service.

The issue is caused by a race condition where caller_ctx may be freed before the completion queue and event queue are destroyed, which can lead to a use-after-free or NULL pointer dereference in mana_hwc_handle_resp().

13) Type Confusion (CVE-ID: CVE-2026-31502)

CWE-ID: CWE-843 - Type confusion

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to type confusion in team header_ops handling when processing header operations on non-Ethernet ports. A local user can trigger crafted network device interactions to cause a denial of service.

The issue can be triggered in stacked non-Ethernet topologies where inherited header callbacks are invoked with the wrong net_device context.

14) Deadlock (CVE-ID: CVE-2026-43147)

CWE-ID: CWE-833 - Deadlock

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a deadlock in the SR-IOV handling logic when writing to sysfs entries to disable virtual functions and remove a PCI device. A local user can write crafted values to the sriov_numvfs and remove sysfs attributes to cause a denial of service.

The issue is triggered by recursive acquisition of pci_rescan_remove_lock during device removal.

15) Type Confusion (CVE-ID: CVE-2026-43456)

CWE-ID: CWE-843 - Type confusion

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to type confusion in bond_setup_by_slave() when handling header operations for a bonded non-Ethernet slave device. A local user can enslave a non-Ethernet device such as a GRE tunnel to a bond and trigger packet transmission to cause a denial of service.

The issue is triggered because header callbacks from the slave device are invoked with the bond device context, causing device-specific private data to be interpreted as the wrong type.

16) Out-of-bounds write (CVE-ID: CVE-2026-45968)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds index in the cpuidle ladder governor when selecting an idle state on systems with only one available idle state. A local attacker can trigger the vulnerable code path to cause a denial of service.

This issue occurs on certain platforms where cpuidle registers only a single polling idle state, which can result in a NULL enter callback being invoked and a system crash.

17) Out-of-bounds read (CVE-ID: CVE-2026-52910)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds read in the reuseport cBPF program handling in sk_reuseport_prog_free() when detaching or replacing a reuseport program while UDP packets are being processed concurrently. A local user can trigger concurrent reuseport program updates and packet transmission to cause a denial of service.

The issue occurs because the classic BPF reuseport program may be freed before RCU readers have completed.

18) Use-after-free (CVE-ID: CVE-2026-52912)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.7 [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]

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.

19) NULL pointer dereference (CVE-ID: CVE-2026-52929)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a null-pointer dereference in the SCTP stream scheduler state handling in net/sctp/stream.c when processing a denied ADD_OUT_STREAMS operation and a later stream re-add. A remote attacker can trigger SCTP stream reset operations that leave stale removed stream metadata behind to cause a denial of service.

The issue occurs because removed outgoing stream state is not fully rolled back, leaving scheduler-private stream metadata inconsistent for later reuse.

20) Race condition (CVE-ID: CVE-2026-52977)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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.

21) 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: 4.8 [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]

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.

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

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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.

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

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

CVSSv4: 4.8 [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]

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.

24) NULL pointer dereference (CVE-ID: CVE-2026-53163)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a null pointer dereference in remove_waiter() in the rtmutex futex proxy locking path when handling FUTEX_CMP_REQUEUE_PI operations during deadlock detection or proxy lock acquisition. A local user can invoke crafted futex operations to cause a denial of service.

25) Use-after-free (CVE-ID: CVE-2026-53260)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free race condition in reqsk_queue_hash_req() in net/ipv4/inet_connection_sock.c when handling TCP request socket timer setup and reference count initialization on PREEMPT_RT systems. A local user can trigger the race to cause a denial of service.

Exploitation requires a PREEMPT_RT-enabled kernel.

26) Use-after-free (CVE-ID: CVE-2026-53264)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.7 [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]

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

The vulnerability exists due to a use-after-free in the net/sched action lifecycle handling in act_api when NEWTFILTER and DELFILTER are run concurrently. A local user can trigger concurrent filter operations to cause a denial of service.

The issue arises from a race between action lookup and action deletion under RCU-protected access.

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

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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.

28) Out-of-bounds write (CVE-ID: CVE-2026-53366)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds write in __ip_append_data() when processing IPv4 packet data on the paged allocation path. A local user can trigger the faulty length calculations to cause a denial of service.

The issue occurs because fraggap bytes copied from the previous skb are placed into the new skb linear area while the allocation size does not account for those bytes.

29) Use-after-free (CVE-ID: CVE-2026-53381)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in fuse_release_end() during virtiofs auto_submount unmount processing when releasing files during submount unmount after the superblock has already been destroyed. A local user can trigger submount unmount activity to cause a denial of service.

The issue affects the virtiofs auto_submounts case, where the wait counter is tracked per connection rather than per superblock.

30) Use-after-free (CVE-ID: CVE-2026-53388)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in fuse_try_move_folio() in the FUSE subsystem when moving a page cache folio during FUSE read handling. A local user can trigger a race condition to cause a denial of service.

The issue occurs because the request is not re-locked on the success path, allowing request abortion to free fuse_io_args while subsequent copy logic still accesses it.

31) Use-after-free (CVE-ID: CVE-2026-63801)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in tipc_aead_decrypt_done in the TIPC crypto subsystem when processing crafted encrypted frames during asynchronous decryption. A remote attacker can send crafted encrypted frames to trigger a read from freed memory and cause a denial of service.

Exploitation requires the asynchronous decryption path to be used and can occur while the associated network namespace is being torn down.

32) Use-after-free (CVE-ID: CVE-2026-63823)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in request_key_auth handling in the Linux kernel key management subsystem when processing KEYCTL_INSTANTIATE_IOV or related key instantiation and rejection paths concurrently with request_key() completion. A local user can trigger concurrent key operations to cause a denial of service.

The issue occurs because the request_key_auth payload can be freed after helper completion while another path later resumes and accesses rka->target_key.

33) Use-after-free (CVE-ID: CVE-2026-63827)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in aa_replace_profiles() during rawdata_list deduplication when processing policy replacement operations. A local user can trigger AppArmor profile replacement with crafted timing to cause a denial of service.

The issue occurs because entries can remain on the rawdata list after their profile reference count has reached zero and before deferred cleanup runs.

34) Race condition (CVE-ID: CVE-2026-63879)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to improper synchronization in amdgpu_hmm_range_get_pages in the AMDGPU HMM handling code when reading the notifier sequence across range processing. A local user can trigger memory invalidation during page range handling to cause a denial of service.

The issue can result in operations being performed on invalid pages.

35) Integer overflow (CVE-ID: CVE-2026-63881)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to integer overflow in get_queue_ids() in the amdkfd kfd debugger when processing a user-supplied queue ID array. A local user can supply crafted queue count values to cause a denial of service.

The issue affects 32-bit size_t builds.

36) Heap-based buffer overflow (CVE-ID: CVE-2026-63886)

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

CVSSv4: 7.1 [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]

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

The vulnerability exists due to a heap-based buffer overflow in chap_server_compute_hash() in the iSCSI target CHAP authentication handling when processing a specially crafted base64-encoded CHAP_R response. A remote user can send a specially crafted CHAP authentication response to cause a denial of service.

The issue affects the BASE64 CHAP_R decoding path; the mutual CHAP CHAP_C decoding path is not affected.

37) Heap-based buffer overflow (CVE-ID: CVE-2026-63887)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a heap-based buffer overflow in iscsi_encode_text_output() when processing iSCSI login text parameters. A remote attacker can send a specially crafted login request with many minimal key-value pairs to cause a denial of service.

The issue can be triggered by expansion of unknown keys into larger "NotUnderstood" response records during login negotiation.

38) Double free (CVE-ID: CVE-2026-63888)

CWE-ID: CWE-415 - Double Free

CVSSv4: 7.1 [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]

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

The vulnerability exists due to a double free in iscsit_handle_text_cmd() when handling a Text PDU with a bad DataDigest on connections using ErrorRecoveryLevel greater than 0. A remote user can send a specially crafted text request to cause a denial of service.

On hardened kernels the flaw can trigger a remote kernel BUG(), while on non-hardened kernels it can corrupt the slab freelist. A follow-up Text Request on the same ITT or session teardown can free the same pointer again.

39) Out-of-bounds read (CVE-ID: CVE-2026-63888)

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

CVSSv4: 7.1 [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]

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

The vulnerability exists due to an out-of-bounds read in iscsit_handle_text_cmd() when processing Text PDUs with DataDigest enabled. A remote user can send a specially crafted text request to cause a denial of service.

The issue is triggered when DataDigest is negotiated for the connection.

40) Out-of-bounds read (CVE-ID: CVE-2026-63920)

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

CVSSv4: 6.8 [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]

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in ip6_datagram_recv_specific_ctl() when processing IPv6 extension headers for recvmsg control messages after the hdrlen field is modified. A local user can use an nftables payload-write expression to corrupt the extension header length and trigger copying beyond the available header data to disclose sensitive information.

Exploitation is reachable from an unprivileged user namespace.

41) Use-after-free (CVE-ID: CVE-2026-63944)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in hci_le_create_cis_sync in the Bluetooth HCI synchronization logic when processing concurrent Bluetooth connection state changes during LE Create CIS handling. A local user can trigger a concurrent disconnect to cause a denial of service.

The stale pointer is dereferenced after both rcu_read_lock() and hci_dev_lock(hdev) are released, and the queued cancellation path does not match the pending work item because it is queued with NULL data but dequeued with the connection pointer.

42) Improper resource shutdown or release (CVE-ID: CVE-2026-63970)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to improper resource shutdown or release in virtio_transport_alloc_skb() in the vsock/virtio transport when processing fixed-buffer vectored zerocopy input that hits MAX_SKB_FRAGS. A local user can trigger a partial attachment of managed fragments to cause a denial of service.

Exploitation occurs on the rollback path after io_sg_from_iter() returns -EMSGSIZE, causing an skb with managed fragment references but no bound uarg to be freed through the ordinary fragment unref path.

43) NULL pointer dereference (CVE-ID: CVE-2026-63972)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a NULL pointer dereference in mana_detach() when handling queue reset recovery after a previous detach succeeded but attach failed. A local user can trigger queue reset handling to cause a denial of service.

The issue occurs when the port is already in a detached state and transmit and receive queue resources have already been freed.

44) NULL pointer dereference (CVE-ID: CVE-2026-63973)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a NULL pointer dereference in the mana network driver teardown path when cleaning up after a partial queue allocation failure. A local user can trigger queue allocation failure and subsequent teardown handling to cause a denial of service.

The issue can be reached through multiple teardown paths, including device removal, MTU change recovery, and internal error handling.

45) Out-of-bounds read (CVE-ID: CVE-2026-63992)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to an out-of-bounds read in iptunnel_pmtud_check_icmp() when processing ICMP packets without a valid transport header. A remote attacker can send a specially crafted packet to cause a denial of service.

The issue occurs because the function may be called while the skb transport header is not set.

46) Out-of-bounds read (CVE-ID: CVE-2026-64000)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to an out-of-bounds read in supervision frame handling in net/hsr/hsr_forward.c when processing truncated supervision frames. A remote attacker can send a specially crafted frame to cause a denial of service.

47) Use-after-free (CVE-ID: CVE-2026-64002)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in ipv4_sysctl_exit_net() when unregistering the IPv4 sysctl table while sysctl handlers may still access sysctl_local_reserved_ports. A local user can trigger access to the freed sysctl entry to cause a denial of service.

The issue affects access to /proc/sys/net/ipv4/ip_local_reserved_ports during network namespace sysctl teardown.

48) Use-after-free (CVE-ID: CVE-2026-64007)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in synproxy_tstamp_adjust() in the netfilter synproxy implementation when processing crafted TCP packets that trigger header rewriting on a cloned or non-linear skb. A remote attacker can send a specially crafted packet to cause memory corruption or a denial of service.

The issue affects checksum updates after the packet buffer is made writable, which can result in a write to freed slab memory or a transmitted packet with a stale checksum.

49) Use-after-free (CVE-ID: CVE-2026-64010)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free race condition in nfc_llcp_recv_cc() when processing an NFC LLCP connection acceptance packet concurrently with socket release. A local user can trigger concurrent connection handling and socket release to cause a denial of service.

The issue occurs during a connection state transition when a socket can be moved from the connecting_sockets list to the sockets list after it has already been unlinked and marked for destruction.

50) Use-after-free (CVE-ID: CVE-2026-64011)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in llcp_sock_release() when releasing an LLCP socket in connecting state. A local user can trigger socket release in that state to cause a denial of service.

51) Race condition (CVE-ID: CVE-2026-64015)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a race condition in find_key_to_update in the keyring code when looking up keys for update without holding the RCU read lock. A local user can trigger concurrent key lookup and garbage-collection activity to cause a denial of service.

The issue affects persistent key handling, which uses a different locking model.

52) Out-of-bounds read (CVE-ID: CVE-2026-64018)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds read in mana_hwc_rx_event_handler() when processing hardware-modifiable WQE contents from DMA-coherent memory. A local attacker can modify the derived rx_req_idx value to cause a denial of service.

In confidential VMs such as SEV-SNP and TDX, the affected DMA-coherent memory is shared unencrypted and hardware can modify WQE contents at any time.

53) Use-after-free (CVE-ID: CVE-2026-64029)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in seq_ump_process_event() and snd_rawmidi_kernel_write1() when processing sequencer events during concurrent output teardown. A local user can trigger concurrent event delivery and output close operations to cause a denial of service.

The issue arises from a race condition between the event_input path and the last output unuse path, where the rawmidi substream runtime may be freed while still in use.

54) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-64034)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

CVSSv4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to bypass bounds validation.

The vulnerability exists due to a time-of-check time-of-use double-fetch in mana_hwc_rx_event_handler() and mana_hwc_handle_resp() when reading hwc_msg_id from a DMA-coherent buffer. A remote attacker can modify the DMA-visible hwc_msg_id value between reads to bypass bounds validation.

Exploitation requires hardware or a host environment able to alter shared, unencrypted DMA-coherent memory between the check and the subsequent use, such as in confidential VM environments.

55) NULL pointer dereference (CVE-ID: CVE-2026-64048)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a null pointer dereference in smc_v2_determine_accepted_chid and smc_conn_create when processing a crafted SMC-Dv2 accept reply with CHID 0. A remote attacker can send a specially crafted reply to trigger a kernel fault and cause a denial of service.

Exploitation requires a malicious peer to reply to an SMC-Dv2-only proposal.

56) Improper locking (CVE-ID: CVE-2026-64098)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to improper lock handling in virtio_gpu_cursor_plane_update() and virtio_gpu_resource_flush() when updating planes and flushing framebuffer resources. A local user can trigger error conditions that leave the dma_resv lock unheld and then reach fence-list updates to cause a denial of service.

The issue can race with concurrent readers or writers and corrupt the dma_resv fence list. The reported trigger used fault injection on the DRM_IOCTL_MODE_CURSOR path.

57) Use-after-free (CVE-ID: CVE-2026-64109)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in unix_stream_data_wait() in net/unix/af_unix.c when processing racing recv() operations on the same AF_UNIX stream socket. A local user can trigger concurrent peek and normal receive operations to cause a denial of service.

Exploitation requires a race condition between a peeking recv() call and a normal recv() call on the same socket.

58) Out-of-bounds read (CVE-ID: CVE-2026-64114)

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

CVSSv4: 5.6 [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]

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

The vulnerability exists due to an out-of-bounds access in the raw_send_hdrinc IPv4 packet handling in the Linux kernel when processing a malformed IP_HDRINCL packet with an IPv4 header length value less than 5. A local user can send a specially crafted packet through a raw socket to cause a denial of service.

Exploitation requires CAP_NET_RAW. Triggering the reproduced crash path also requires a matching xfrm AH policy on the outgoing route, and loopback does not reach the affected path.

59) Use-after-free (CVE-ID: CVE-2026-64115)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a use-after-free in vmci_transport_recv_connecting_server() and vmci_transport_recv_listen() when processing a peer reset during the connection handshake. A remote attacker can send a reset packet during the handshake to cause a denial of service.

The issue is triggered by a race involving pending socket cleanup in the VMCI vsock transport.

60) Out-of-bounds read (CVE-ID: CVE-2026-64121)

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

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in ifb_get_ethtool_stats in the IFB network driver when handling ethtool statistics requests on a device with more RX queues than TX queues. A local user can request ethtool statistics for a crafted asymmetric IFB device to disclose sensitive information.

Exploitation requires an IFB device configuration where the RX queue count exceeds the TX queue count.

61) Out-of-bounds write (CVE-ID: CVE-2026-64217)

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

CVSSv4: 6.9 [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]

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to an out-of-bounds write in netfs_extract_user_iter() when extracting user-supplied pages from an iov_iter. A local user can trigger an extract_pages overrun to cause memory corruption.

The issue occurs if iov_iter_extract_pages() overfills the pages array, causing excess pages to be included in the constructed iterator.

62) Out-of-bounds read (CVE-ID: CVE-2026-64247)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds read in hv_is_vp_in_sparse_set() when handling a paravirtual TLB flush for an L2 guest with a copied VP ID from the enlightened VMCS. A local user can provide a crafted VP ID value to cause a denial of service.

The issue can also cause KVM to perform an unnecessary TLB flush for an L2 vCPU.

63) Use-after-free (CVE-ID: CVE-2026-64266)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in fuse_ref_folio() in the FUSE subsystem when handling a subsequent copy chain after unlocking the request. A local user can trigger request abort and asynchronous end callback timing to cause a denial of service.

64) Out-of-bounds write (CVE-ID: CVE-2026-64268)

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

CVSSv4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote user to write out of bounds.

The vulnerability exists due to an out-of-bounds write in siw_proc_rresp() in drivers/infiniband/sw/siw/siw_qp_rx.c when processing Read Response DDP segments for an outstanding RREAD over an established RDMA connection. A remote user can send Read Response segments with more total payload than requested while keeping the DDP Last flag clear to write out of bounds.

Exploitation requires a connected siw peer on an established RDMA connection over routable TCP.

65) Out-of-bounds write (CVE-ID: CVE-2026-64304)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to an out-of-bounds write in qat_rsa_setkey_crt() when processing RSA CRT key components larger than half of the key size. A local user can provide a crafted RSA CRT key to cause memory corruption.

The issue occurs because CRT components are bounded by the modulus size in the generic RSA key parser, while the QAT driver allocates half-size DMA buffers for those components.

66) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-64312)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to improper callback handling in the pcrypt aead fallback path in crypto/pcrypt.c when processing non-parallel fallback after padata submission returns -EBUSY. A local user can trigger asynchronous cryptographic operations that use the fallback path to cause a denial of service.

67) Out-of-bounds read (CVE-ID: CVE-2026-64355)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds access in dev_map_enqueue_clone() and dev_map_redirect_clone() when cloning fragmented native XDP frames or nonlinear generic XDP packets for devmap broadcast redirects. A local user can trigger clone-based broadcast handling with a crafted fragmented frame to cause a denial of service.

The issue occurs because fragment metadata is not present in the linear cloned frame, and later frame return can interpret uninitialized tail data as skb_shared_info.

68) Double free (CVE-ID: CVE-2026-64383)

CWE-ID: CWE-415 - Double Free

CVSSv4: 7.1 [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]

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

The vulnerability exists due to double free in SMB2_flush() when handling replay attempts for flush responses. A remote user can trigger a replayable flush response followed by a failed retry to cause a denial of service.

69) Double free (CVE-ID: CVE-2026-64384)

CWE-ID: CWE-415 - Double Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to double free in SMB change notify handling in fs/smb/client/smb2pdu.c when processing replayable error conditions during change notify requests. A local user can trigger a replayable error and subsequent cleanup to free the same response buffer twice to cause a denial of service.

70) Double free (CVE-ID: CVE-2026-64385)

CWE-ID: CWE-415 - Double Free

CVSSv4: 7.1 [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]

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

The vulnerability exists due to double free in SMB2_ioctl() when handling replayable ioctl responses. A remote user can trigger a replayable error condition to cause a denial of service.

71) Double free (CVE-ID: CVE-2026-64386)

CWE-ID: CWE-415 - Double Free

CVSSv4: 7.1 [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]

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

The vulnerability exists due to a double free in query_info() in the smb client when handling replayable query_info requests. A remote user can trigger a replayable error sequence to cause a denial of service.

72) Double free (CVE-ID: CVE-2026-64387)

CWE-ID: CWE-415 - Double Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a double free in SMB2_query_directory in the SMB client when handling replayed query directory responses and reinitialization failures. A local user can trigger a replayable error and subsequent cleanup conditions to cause a denial of service.

73) Use-after-free (CVE-ID: CVE-2026-64423)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in the IGMP multicast group handling in net/ipv4/igmp.c when destroying a device while concurrent RCU readers traverse the multicast hash table. A local user can trigger multicast group membership operations and concurrent network processing to cause a denial of service.

The issue occurs because multicast group entries can remain reachable through the device multicast hash table during RCU reclamation.

74) Out-of-bounds read (CVE-ID: CVE-2026-64450)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to an out-of-bounds read in the TIPC broadcast Gap ACK blocks handling in tipc_bcast_sync_rcv() when processing a crafted broadcast PROTOCOL/STATE_MSG. A remote attacker can send a specially crafted broadcast STATE_MSG with a malformed Gap ACK blocks record to cause a denial of service.

Exploitation requires a TIPC neighbour that has negotiated TIPC_GAP_ACK_BLOCK.

75) Use-after-free (CVE-ID: CVE-2026-64481)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in the cs35l41_hda firmware load work and ALSA control handling when a firmware load is requested and queued work executes after component unbind or device removal. A local user can trigger a firmware load request and remove the component or device before the queued work runs to cause a denial of service.

Exploitation requires firmware autostart to be disabled and can occur before DSP initialization.

76) Out-of-bounds read (CVE-ID: CVE-2026-64524)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to an out-of-bounds read in the Hyper-V DRM protocol resolution response parser when processing a crafted SYNTHVID_RESOLUTION_RESPONSE message. A remote attacker can send a specially crafted resolution response with an oversized resolution_count value to cause a denial of service.

The issue affects the drm/hyperv code path while parsing supported display resolutions from the host.

77) Out-of-bounds read (CVE-ID: CVE-2026-64527)

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

CVSSv4: 6.9 [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]

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

The vulnerability exists due to an out-of-bounds read in hyperv_receive() and hyperv_receive_sub() in the Hyper-V DRM protocol handler when handling oversized or malformed VMBus packets. A remote attacker can send a specially crafted VMBus packet to cause a denial of service.

An error path may report a required packet length larger than the 16 KiB receive buffer, leading the code to use that length unsafely if forwarded for copying.

78) Out-of-bounds read (CVE-ID: CVE-2026-64527)

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

CVSSv4: 6.9 [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]

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in hyperv_receive_sub() in the Hyper-V DRM protocol handler when processing crafted VMBus packets. A remote attacker can send a specially crafted VMBus packet to disclose sensitive information.

The issue affects completion-driving message handling and can cause residual data from a prior message to be treated as a valid response payload.

79) Use-after-free (CVE-ID: CVE-2026-64541)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in smc_cdc_rx_handler() when handling SMC-R CDC messages for a connection after releasing conns_lock. A local user can trigger a concurrent socket close while the handler continues to dereference the freed socket to cause a denial of service.

Only SMC-R is affected.

80) Use-after-free (CVE-ID: CVE-2026-64543)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in tipc_disc_rcv() when processing TIPC discovery messages on a UDP bearer. A local user can trigger network namespace-accessible TIPC bearer operations and send crafted traffic to cause a denial of service.

Exploitation requires CONFIG_TIPC and CONFIG_TIPC_MEDIA_UDP. The affected functionality is reachable from an unprivileged user namespace because the TIPCv2 generic netlink family is netnsok and its bearer commands do not require GENL_ADMIN_PERM.

81) Use-after-free (CVE-ID: CVE-2026-64562)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in KVM nested VMX shadow VMCS handling when freeing nested virtualization state asynchronously with respect to loaded VMCS clearing during vCPU migration. A local user can trigger nested virtualization cleanup and vCPU migration to execute VMCLEAR on a freed shadow VMCS and cause a denial of service.

The issue occurs because vmcs01 may still reference the shadow VMCS until explicit VMCLEAR completes.

82) Use-after-free (CVE-ID: CVE-2026-64563)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in rhashtable_walk_next in the rhashtable iterator logic when resuming multi-fragment rhashtable walks across walk_stop and walk_start boundaries after a table restart. A local user can trigger a stale iterator pointer dereference to cause a denial of service.

Concrete affected call paths include netlink_diag and TIPC.

83) Use-after-free (CVE-ID: CVE-2026-64572)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.6 [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]

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

The vulnerability exists due to a use-after-free in fib_table_lookup() and the IPv4 FIB alias list handling in fib_trie.c when processing concurrent route insertion failure and lookup operations. A local privileged user can trigger a route insertion error path and perform a concurrent lookup to cause a denial of service.

Exploitation requires CAP_NET_ADMIN and a registered FIB notifier that can reject a route, such as when an IPv4 FIB resource is exhausted on a netdevsim device.

84) Unchecked Return Value (CVE-ID: CVE-2026-64577)

CWE-ID: CWE-252 - Unchecked Return Value

CVSSv4: 8.7 [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]

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

The vulnerability exists due to improper handling of a failed buffer pull in gtp1u_send_echo_resp() in the Linux kernel GTP implementation when processing a crafted short echo request packet. A remote attacker can send a specially crafted packet to cause a kernel panic.

The issue is triggered by a 16 to 19 byte echo request that causes skb_pull_data() to fail while execution continues and skb data is moved below the buffer head.

85) Double free (CVE-ID: CVE-2026-64581)

CWE-ID: CWE-415 - Double Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a double free in xfrm_user_policy() when racing a per-socket policy change with packet transmission on a connected UDP socket. A local user can trigger concurrent socket operations to cause a denial of service.

The issue is reachable by an unprivileged user via a user and network namespace.

86) NULL pointer dereference (CVE-ID: CVE-2026-64593)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a NULL pointer dereference in btrfs_trim_free_extents in the Btrfs filesystem when processing a FITRIM ioctl on a rescanned device that is not writeable. A local user can issue a trim request to trigger a kernel crash and cause a denial of service.

The issue occurs when a previously missing device is rescanned, clearing the missing-device state while the block device pointer remains NULL.

87) Use-after-free (CVE-ID: CVE-2026-68121)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to a use-after-free in pppoe_sendmsg() when handling a blocked send while a non-Ethernet port is added to an empty team device. A local user can trigger skb head reallocation and subsequent writes through a stale PPPoE header pointer to cause memory corruption.

The issue occurs because device header callbacks may reallocate the skb head and invalidate saved pointers into it.

88) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-68133)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to improper state management in the ice_ptp_rebuild() function in the Intel ice PTP driver when handling a PF reset while PTP is uninitialized. A local user can trigger this condition to cause a denial of service.

This was observed during driver unload after passing PF1 through to a virtual machine.

89) Improper input validation (CVE-ID: CVE-2026-68136)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [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]

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

The vulnerability exists due to improper state validation in skb_gro_receive_list() in the GRO subsystem when processing flush-marked aggregated packets. A remote attacker can send specially crafted network traffic to cause a denial of service.

The issue can corrupt the frag_list chain and later trigger a kernel panic when skb_segment() processes the malformed packet state.

90) Race condition (CVE-ID: CVE-2026-68138)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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 and double-free in qdisc_get_rtab() and qdisc_put_rtab() when processing concurrent RTM_NEWTFILTER requests that add flower filters with a police action carrying the same rate. A local user can send concurrent netlink filter configuration requests to cause a denial of service.

The corrupted qdisc_rate_table object is shared system-wide because the affected rate-table list is process-global rather than per-network-namespace.

91) Improper input validation (CVE-ID: CVE-2026-68155)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [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]

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

The vulnerability exists due to improper input validation in ceph_monmap_decode() when processing a CEPH_MSG_MON_MAP monmap message. A remote attacker can send a specially crafted monmap advertising zero monitors to cause a denial of service.

The issue is triggered when the client later attempts to open a session with a monitor, causing an assertion in pick_new_mon() to fire.

92) Integer overflow (CVE-ID: CVE-2026-68158)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 6.9 [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]

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an integer overflow in decode_new_up_state_weight() when processing a corrupted CEPH_MSG_OSD_MAP message containing a crafted osdmap. A remote attacker can send a specially crafted message to disclose sensitive information.

The issue can lead to out-of-bounds reads while decoding the new_state portion of the osdmap.

93) Out-of-bounds write (CVE-ID: CVE-2026-68159)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a stack out-of-bounds write in __decode_pg_temp(), __decode_pg_upmap_items(), and OSDMap handling in net/ceph/osdmap.c when processing a crafted OSDMap containing an oversized pg_temp, pg_upmap, or pg_upmap_items entry. A remote attacker can send a specially crafted OSDMap entry to cause a denial of service.

The issue is triggered when the decoded list is later copied into the fixed-size on-stack array struct ceph_osds.osds[CEPH_PG_MAX_SIZE].

94) Out-of-bounds read (CVE-ID: CVE-2026-68160)

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

CVSSv4: 6.9 [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]

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in ceph_handle_caps() and ceph_update_snap_trace() when processing a crafted Ceph MDS caps message with a malicious snap_trace_len value. A remote attacker can send a specially crafted message to disclose sensitive information.

Exploitation requires a malicious or compromised MDS to send a version 1 message so the IMPORT path is reached without prior version-gated validation of snap_trace_len.

95) Use-after-free (CVE-ID: CVE-2026-68202)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in the ALSA sequencer queue timer handling in snd_seq_timer_delete() and related queue destruction logic when accessing /dev/snd/seq and re-opening a queue timer during queue teardown. A local user can issue crafted sequencer operations to leave a timer instance live and trigger a dereference of freed queue memory to cause a denial of service.

No queue ownership is required.

96) Use-after-free (CVE-ID: CVE-2026-68397)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in afiucv_hs_rcv() and the afiucv_hs_callback_* handlers when processing AF_IUCV socket traffic. A local user can trigger a concurrent socket close to cause a denial of service.

The issue arises because the destination socket is looked up under a lock and then used after the lock is released without holding a reference.

97) Use-after-free (CVE-ID: CVE-2026-68398)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.5 [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]

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

The vulnerability exists due to a use-after-free in pppol2tp_recv() and PPP channel handling when processing pppol2tp receive traffic concurrently with channel teardown. A local user can trigger concurrent receive and close operations to cause a denial of service or execute arbitrary code.

The issue is reachable by an unprivileged user and affects a channel that is bound but not attached to a PPP unit and not bridged.

98) Race condition (CVE-ID: CVE-2026-68417)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a race condition in siw_create_qp() and QP lookup handling when creating and looking up queue pairs. A local user can trigger a QPN lookup for a queue pair that is still being constructed to cause a denial of service.

The issue occurs because the queue pair can be published before its queues, completion queue pointers, state, completion object, and device list entry are fully initialized.

99) Use-after-free (CVE-ID: CVE-2026-68426)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in validate_xmit_xfrm() in net/xfrm/xfrm_device.c when processing GSO segment lists with asynchronous crypto handling. A local user can trigger asynchronous processing that steals a segment and leaves a stale skb->prev pointer to cause a denial of service.

The issue occurs when a stolen segment remains referenced as the list tail and is later dereferenced by validate_xmit_skb_list().

100) Use-after-free (CVE-ID: CVE-2026-68428)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in the KVM x86 MMU cache cleanup logic when reloading a vendor module after a prior unload. A local user can trigger a vendor module reload sequence with a failed cache initialization to cause a denial of service.

The issue occurs when kvm.ko remains loaded while a vendor module is unloaded and then reloaded, leaving a stale cache pointer that is later passed to kmem_cache_destroy().

101) Insufficient Control Flow Management (CVE-ID: CVE-2026-68480)

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

CVSSv4: 4.8 [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]

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to improper control flow handling in the x86 Safe-RET sequence when interrupts are injected during execution of the sequence on SRSO-affected systems. A local user can inject interrupts during the Safe-RET sequence to disclose sensitive information.

Only systems affected by SRSO are vulnerable.

102) Use of Uninitialized Variable (CVE-ID: CVE-2026-72020)

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

CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote user to disclose sensitive information and corrupt forwarded TCP traffic.

The vulnerability exists due to use of uninitialized memory in ip_vs_conn_new and TCP sequence handling in IPVS when processing a malformed sync message that omits sequence data. A remote user can send a specially crafted sync message to disclose sensitive information and corrupt forwarded TCP traffic.

The issue affects connections learned from a sync message when sequence flags are preserved without valid sequence data, causing stale slab bytes to be used in TCP sequence and acknowledgment number rewriting by an IPVS application helper.

103) Use-after-free (CVE-ID: CVE-2026-72069)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free in rt_spin_unlock(), rt_read_unlock(), and rt_write_unlock() when releasing RCU protection before completing unlock operations. A local user can trigger concurrent lock and RCU operations to execute arbitrary code.

The issue affects the RT spinlock and rwlock substitutions where unlock handling does not preserve the expected non-RT RCU protection semantics.

104) Use-after-free (CVE-ID: CVE-2026-72072)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.7 [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]

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

The vulnerability exists due to use-after-free in mlx5e MACsec RX offload handling when deleting and processing offloaded MACsec RX SC entries concurrently. A local user can trigger concurrent RX SC deletion and RX datapath processing to cause a denial of service.

The issue affects the RX datapath under RCU lookup and reference handling of metadata_dst objects.

105) Use-after-free (CVE-ID: CVE-2026-72083)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 7.1 [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]

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

The vulnerability exists due to a use-after-free in core_scsi3_emulate_pro_register_and_move() when processing a crafted iSCSI TransportID in a PERSISTENT RESERVE OUT REGISTER AND MOVE parameter list. A remote user can send a specially crafted request to cause a denial of service.

The issue is triggered when the parameter list spans more than one page, causing the ISID pointer to reference an unmapped region after the buffer is torn down.

106) Out-of-bounds read (CVE-ID: CVE-2026-72084)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to an out-of-bounds read in iSCSI PR-OUT TransportID parsing in the Linux kernel SCSI target subsystem when processing a crafted PERSISTENT RESERVE OUT TransportID buffer. A remote attacker can send a specially crafted PR OUT request to cause a denial of service.

The issue is reachable through any fabric that delivers a PR OUT to a device exported through an iSCSI target portal group, including a guest via vhost-scsi.

107) Use-after-free (CVE-ID: CVE-2026-72123)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.7 [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]

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

The vulnerability exists due to a use-after-free in the can bcm rx operation handling in net/can/bcm.c when tearing down bcm rx operations concurrently with packet reception and timer activity. A local user can trigger a race condition to cause a denial of service.

The issue involves a thrtimer callback dereferencing a deallocated bcm_op object after an RCU grace period elapses.

108) Out-of-bounds read (CVE-ID: CVE-2026-72135)

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

CVSSv4: 8.4 [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]

The vulnerability allows a local user to disclose sensitive information and corrupt kernel memory.

The vulnerability exists due to an out-of-bounds read and out-of-bounds write in the TPM character device read path when processing positional read operations with a pending response. A local user can issue a crafted pread request with a large offset to disclose sensitive information and corrupt kernel memory.

The issue affects the sequential command/response TPM device interface after a command has left a response pending.

109) Race condition (CVE-ID: CVE-2026-72221)

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

CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a race condition in svc_tcp_handshake() in the sunrpc server socket handling code when processing a TLS handshake callback during handshake cancellation. A remote attacker can trigger a TLS handshake timeout or interruption and cause concurrent handshake completion to corrupt the embedded swait_queue or tear down the connection to cause a denial of service.

The issue occurs when cancellation loses the race to handshake completion and the callback is still in flight.

110) Use-after-free (CVE-ID: CVE-2026-72222)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause memory corruption.

The vulnerability exists due to a use-after-free in the sunrpc TLS handshake callback handling in svc_tcp_handshake() and svc_tcp_handshake_done() when a connection close overlaps an asynchronous TLS handshake. A remote attacker can trigger a connection close during the TLS handshake to cause memory corruption.

The issue is reachable on TLS-enabled NFS servers, and signal delivery during the interruptible wait can trigger the affected race window.

111) Use-after-free (CVE-ID: CVE-2026-72251)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in nf_nat_sip in net/netfilter/nf_nat_sip.c when handling cloned socket buffers during SIP NAT processing. A local user can trigger packet processing with a cloned skb to cause a denial of service.

The issue occurs in the reply-direction destination port mangling path for SIP traffic.

112) Heap-based buffer overflow (CVE-ID: CVE-2026-72262)

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

CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service or disclose sensitive information.

The vulnerability exists due to a heap-based buffer overflow and out-of-bounds read in the SOF IPC3 bytes control handling in sound/soc/sof/ipc3-control.c when processing data through the ALSA TLV kcontrol interface. A local user can send specially crafted control data to cause a denial of service or disclose sensitive information.

The issue affects the bytes_ext put and get paths, including an error-path restore operation that can write past the end of the allocated buffer.

113) Use-after-free (CVE-ID: CVE-2026-72288)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in the KVM arm64 virtual generic interrupt controller (vgic) AP list handling when racing interrupt affinity changes with LPI disabling. A local user can trigger concurrent interrupt state changes to cause a denial of service.

The issue occurs during LPI handling involving multiple vCPUs.

114) Race condition (CVE-ID: CVE-2026-72289)

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

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a race condition in vgic_prune_ap_list() in the KVM arm64 virtual generic interrupt controller when migrating an interrupt to another vCPU while locks are temporarily dropped. A local user can trigger interrupt migration during this race to cause a denial of service.

The issue can result in list_del() being performed on an interrupt entry that has already been removed from the ap_list.

115) Use-after-free (CVE-ID: CVE-2026-72317)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in the SUNRPC TLS connect_worker when handling a failed TLS handshake on a TLS-secured transport. A local user can trigger a failed TLS handshake that causes the upper rpc_clnt to be freed before the queued worker dereferences it to cause a denial of service.

The issue affects the TLS transport path; the non-TLS connect worker does not use the saved client pointer.

116) Off-by-one (CVE-ID: CVE-2026-72339)

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

CVSSv4: 6.9 [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]

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to an off-by-one error in the qede_rx_build_skb() and qede_tpa_rx_build_skb() functions when handling a NULL return from qede_build_skb() under memory pressure. A local user can trigger memory pressure and network receive processing to cause memory corruption.

The issue can desynchronize the BD ring, which can corrupt DMA page reference counts and lead to SLUB freelist corruption.

117) Use-after-free (CVE-ID: CVE-2026-72389)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in the STP timer handling in the Linux kernel bridge subsystem when deleting a bridge while the topology change timer is armed on an administratively down bridge. A local user can trigger bridge topology change detection and delete the bridge to cause a denial of service.

The issue occurs because the IFF_UP check was missing in br_topology_change_detection().

118) Use-after-free (CVE-ID: CVE-2026-74345)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a use-after-free in the RDMA/siw connection management endpoint handling code when processing a malformed MPA request during connection establishment. A remote attacker can send a malformed MPA request to cause a denial of service.

The issue is triggered when the new endpoint is closed during connection establishment.

119) Out-of-bounds read (CVE-ID: CVE-2026-74377)

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

CVSSv4: 4.8 [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]

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

The vulnerability exists due to an out-of-bounds read in rxe_resp_check_length() and copy_data() when processing a receive WQE from a shared queue buffer mapped into userspace. A local user can modify WQE fields such as num_sge or sge entries during processing to cause an out-of-bounds read.

The issue affects the non-SRQ queue pair receive path.

120) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-74378)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a heap-based buffer overflow.

The vulnerability exists due to a time-of-check time-of-use race in get_srq_wqe() when copying a work queue element from a shared receive queue buffer mapped into userspace. A local user can modify num_sge between validation and size calculation to cause a heap-based buffer overflow.

The issue arises because the num_sge field is read twice from shared userspace-accessible memory.

121) Out-of-bounds write (CVE-ID: CVE-2026-74390)

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

CVSSv4: 8.5 [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]

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

The vulnerability exists due to out-of-bounds write in irdma_copy_user_pgaddrs when processing user-supplied RDMA memory registration data with lvl set to 0. A local user can provide a umem with more DMA blocks than the supplied page count to cause a denial of service or execute arbitrary code.

The issue affects the lvl==0 case that uses the fixed-size iwmr->pgaddrmem array for QP, CQ, and SRQ rings.

122) Integer overflow (CVE-ID: CVE-2026-74394)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 8.7 [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]

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

The vulnerability exists due to integer overflow in the immediate data length check in the RDMA/srpt subsystem when processing user-supplied immediate data received over the network. A remote attacker can send a specially crafted network request with an oversized length value to cause a denial of service.

The length field is user-controlled and may wrap the computed request size, bypassing the bounds check before a very large length is passed to sg_init_one().

123) Out-of-bounds write (CVE-ID: CVE-2026-74454)

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

CVSSv4: 6.9 [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]

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

The vulnerability exists due to an out-of-bounds write in vc4_overflow_mem_work() when handling a binner out-of-memory event. A local user can trigger a GPU job overflow to corrupt memory and cause a denial of service.

The issue arises because the GPU is authorized to DMA beyond the intended 512KB overflow slot, potentially overwriting in-flight job data and unrelated CMA memory.

124) Use-after-free (CVE-ID: CVE-2026-74488)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to use-after-free in mwifiex_11n_dispatch_amsdu_pkt() when parsing A-MSDU TDLS frames. A remote attacker can send a specially crafted A-MSDU frame with shorter earlier subframes to disclose sensitive information.

Reaching the vulnerable path requires TDLS support in firmware and the TDLS ethertype on the subframe.

125) Use-after-free (CVE-ID: CVE-2026-74496)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in fou_create() and fou_from_sock() when handling concurrent socket activity after a failed FOU port creation. A local user can request local port 0 and trigger concurrent receive processing to cause a denial of service.

The issue is reachable when local port 0 is requested and the creation path fails after the object remains reachable through sk_user_data.

126) Improper access control (CVE-ID: CVE-2026-74516)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 8.5 [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]

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

The vulnerability exists due to improper access control in x2APIC MSR interception handling in KVM SVM/AVIC when AVIC is inhibited while an L2 guest is active. A local user can run a nested guest that triggers this state to cause a denial of service.

The issue can allow an L1 guest to read much of the host APIC state, send arbitrary interrupts, and change task priority before host disruption occurs.

127) Use-after-free (CVE-ID: CVE-2026-74518)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in allocate_file_region_entries() when handling concurrent region cache operations on a shared resv_map. A local user can trigger concurrent region_chg()/region_add()/region_del() activity on the same shared mapping to cause a denial of service.

The issue occurs in shared hugetlbfs mappings and was observed when multiple mappers accessed the same hugetlbfs inode concurrently.

128) Use-after-free (CVE-ID: CVE-2026-74537)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to use-after-free in iso_conn_ready in the Bluetooth ISO subsystem when handling connection ready events during a concurrent socket close. A local user can trigger a race condition to cause a denial of service.

129) Heap-based buffer overflow (CVE-ID: CVE-2026-74556)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a heap-based buffer overflow in iscsi_tcp_hdr_dissect() in libiscsi_tcp when processing a crafted iSCSI SCSI Command Response pdu. A remote attacker can send a specially crafted response with an oversized data segment to cause a denial of service.

The issue occurs because sense or response data for ISCSI_OP_SCSI_CMD_RSP can exceed the fixed 8192-byte connection buffer while remaining within the negotiated maximum receive data segment length.

130) Use-after-free (CVE-ID: CVE-2026-74581)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a use-after-free in fib6_rule_lookup() and fib6_rule_suppress() in the IPv6 routing rules handler when processing suppressed IPv6 route lookups. A local user can trigger route lookups involving a suppressing rule to cause a denial of service.

The issue occurs because a stale dst entry can be returned after the released route remains referenced in the lookup result.

131) Out-of-bounds write (CVE-ID: CVE-2026-74582)

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

CVSSv4: 5.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to an out-of-bounds write in packet_snd() and packet_sendmsg_spkt() in the Linux kernel AF_PACKET implementation when handling non-ring send paths during concurrent device reconfiguration. A local user can send crafted packets while triggering a change in hard_header_len to cause an out-of-bounds write.

The issue affects SOCK_RAW send handling, and packet_sendmsg_spkt() is affected by the same inconsistent header length usage across allocation and packet construction.

132) Out-of-bounds read (CVE-ID: CVE-2026-74612)

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

CVSSv4: 4.8 [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]

The vulnerability allows a local user to disclose sensitive information to userspace.

The vulnerability exists due to an out-of-bounds read in veth_xdp_rcv_skb() when processing an skb after XDP fragment area adjustment. A local user can run an XDP program that shrinks the fragment area to disclose sensitive information to userspace.

The issue can expose skb metadata including fragment state and a kernel pointer, and was observed on the UDP receive path.

133) Stack-based buffer overflow (CVE-ID: CVE-2026-74669)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: 8.7 [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]

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

The vulnerability exists due to a stack out-of-bounds write in ip_vs_in_icmp() when rebasing tunnel ICMP errors and processing IPv4 options. A remote attacker can send a specially crafted ICMP packet with IPv4 timestamp options to cause a denial of service.

The issue is triggered because stale IPv4 option metadata from the outer header is retained after the packet is rebased to the quoted original request.

134) Improper resource shutdown or release (CVE-ID: CVE-2026-74695)

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

CVSSv4: 4.8 [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]

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

The vulnerability exists due to improper resource management in netfilter nf_flow_table offload hooks and the XFRM offload path when processing incoming sk_buffs that already carry a ref-counted dst_entry. A local user can trigger packet handling that overwrites the existing destination reference to cause a denial of service.

The issue leaks a previous dst_entry reference count and triggers a DEBUG_NET_WARN_ON_ONCE assertion in skb_dst_check_unset().

135) Out-of-bounds read (CVE-ID: CVE-2026-80722)

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

CVSSv4: 8.7 [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]

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

The vulnerability exists due to an out-of-bounds read in mac80211 TWT setup handling when processing a received S1G TWT setup frame. A remote attacker can send a specially crafted TWT setup frame with an individual agreement and a truncated parameters block to cause a denial of service.

Broadcast agreements are rejected locally after accessing only req_type.

Remediation

Install update from vendor's website.

References

• https://www.suse.com/support/update/announcement/2026/suse-su-20264369-1/