SB2026093021 - SUSE update for the Linux Kernel
Published: September 30, 2026
Breakdown by Severity
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Description
This security bulletin contains information about 86 vulnerabilities.
1) 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.
2) 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.
3) 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.
4) 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.
5) 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.
6) 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.
7) 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().
8) 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.
9) 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.
10) 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.
11) 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.
12) 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.
13) 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.
14) 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.
15) 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.
16) 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.
17) 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.
18) 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.
19) 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.
20) 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.
21) 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.
22) 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.
23) 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().
24) 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.
25) 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().
26) 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.
27) 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.
28) 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.
29) 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.
30) 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.
31) 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.
32) 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.
33) 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.
34) 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.
35) 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.
36) 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.
37) 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.
38) 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.
39) 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().
40) 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.
41) 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.
42) 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.
43) 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.
44) 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.
45) 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.
46) 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.
47) 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.
48) 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.
49) 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.
50) 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.
51) 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.
52) 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.
53) 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.
54) 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.
55) 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.
56) 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.
57) 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.
58) 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.
59) 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.
60) 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.
61) 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.
62) 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.
63) 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.
64) 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.
65) 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.
66) 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.
67) 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.
68) 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.
69) 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.
70) 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.
71) 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.
72) 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.
73) 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.
74) Improper access control (CVE-ID: CVE-2026-64137)
CWE-ID: CWE-284 - Improper Access Control
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 improper access control in the CIFS SWN generic netlink multicast group when joining the multicast group and receiving registration messages. A local user can join the CIFS_GENL_MCGRP_SWN group to disclose sensitive information.
For NTLM-authenticated mounts, exposed registration messages may include the username, domain, and password attributes copied from the CIFS session.
75) Improper access control (CVE-ID: CVE-2026-64137)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to affect service availability.
The vulnerability exists due to improper access control in the CIFS SWN netlink notify handler when sending witness notification commands. A local user can send crafted RESOURCE_CHANGE or CLIENT_MOVE notifications to affect service availability.
The intended sender is the cifs.witness helper, but any local process could send notifications to the in-kernel witness handler.
76) 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.
77) 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.
78) 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.
79) 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.
80) 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.
81) Off-by-one (CVE-ID: CVE-2026-64047)
CWE-ID: CWE-193 - Off-by-one Error
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 off-by-one error in tls_push_record() in the net/tls subsystem when chaining a wrapped sk_msg scatterlist ring. A local user can trigger the wrapped ring condition to cause a denial of service.
The issue occurs when the sk_msg scatterlist ring wraps with sg.end less than sg.start.
82) 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.
83) 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.
84) 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.
85) 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.
86) 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.
Remediation
Install update from vendor's website.