CVE-2026-52923

In the Linux kernel, the following vulnerability has been resolved: ipc: limit next_id allocation to the valid ID range The checkpoint/restore sysctl path can request the next SysV IPC id through ids->next_id. ipc_idr_alloc() currently forwards that request to idr_alloc() with an open-ended upper bound. If the valid tail of the SysV IPC id space is full, the allocation can spill beyond ipc_mni. The returned SysV IPC id still uses the normal index encoding, so later lookup and removal can target the wrong slot. This leaves the real IDR entry behind and breaks the IDR state for the object. The bug is in ipc_idr_alloc() in the checkpoint/restore path. 1. ids->next_id is passed to: idr_alloc(&ids->ipcs_idr, new, ipcid_to_idx(next_id), 0, ...) 2. The zero upper bound makes the allocation effectively open-ended. Once the valid SysV IPC tail is occupied, idr_alloc() can spill past ipc_mni and allocate an entry beyond the valid IPC id range. 3. The new object id is still encoded with the narrower SysV IPC index width: new->id = (new->seq << ipcmni_seq_shift()) + idx 4. Later removal goes through ipc_rmid(), which uses: ipcid_to_idx(ipcp->id) That truncates the real IDR index. An object actually stored at a high index can then be removed as if it lived at a low in-range index. 5. For shared memory, shm_destroy() frees the current object anyway, but the real high IDR slot is left behind as a dangling pointer. 6. A subsequent walk of /proc/sysvipc/shm reaches the stale IDR entry and dereferences freed memory. Prevent this by bounding the requested allocation to ipc_mni so the checkpoint/restore path fails once the valid range is exhausted.

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

ipc: limit next_id allocation to the valid ID range

The checkpoint/restore sysctl path can request the next SysV IPC id through ids->next_id. ipc_idr_alloc() currently forwards that request to idr_alloc() with an open-ended upper bound.

If the valid tail of the SysV IPC id space is full, the allocation can spill beyond ipc_mni. The returned SysV IPC id still uses the normal index encoding, so later lookup and removal can target the wrong slot. This leaves the real IDR entry behind and breaks the IDR state for the object.

The bug is in ipc_idr_alloc() in the checkpoint/restore path.

1. ids->next_id is passed to:

   idr_alloc(&ids->ipcs_idr, new, ipcid_to_idx(next_id), 0, ...)
   

2. The zero upper bound makes the allocation effectively open-ended. Once the valid SysV IPC tail is occupied, idr_alloc() can spill past ipc_mni and allocate an entry beyond the valid IPC id range.

3. The new object id is still encoded with the narrower SysV IPC index width:

   new->id = (new->seq << ipcmni_seq_shift()) + idx
   

4. Later removal goes through ipc_rmid(), which uses:

   ipcid_to_idx(ipcp->id)
   

   That truncates the real IDR index. An object actually stored at a high index can then be removed as if it lived at a low in-range index.

5. For shared memory, shm_destroy() frees the current object anyway, but the real high IDR slot is left behind as a dangling pointer.

6. A subsequent walk of /proc/sysvipc/shm reaches the stale IDR entry and dereferences freed memory.

Prevent this by bounding the requested allocation to ipc_mni so the checkpoint/restore path fails once the valid range is exhausted.(CVE-2026-52923)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/umem: Fix truncation for block sizes >= 4G

When the iommu is used the linearization of the mapping can give a single block that is very large split across multiple SG entries.

When __rdma_block_iter_next() reassembles the split SG entries it is overflowing the 32 bit stack values and computed the wrong DMA addresses for blocks after the truncation.

Use the right types to hold DMA addresses.(CVE-2026-53133)

In the Linux kernel, the following vulnerability has been resolved:

IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN

In drivers/infiniband/ulp/isert/ib_isert.c, isert_login_recv_done() computes the login request payload length as wc->byte_len minus ISER_HEADERS_LEN with no lower bound, and login_req_len is a signed int. A remote iSER initiator can post a login Send work request carrying fewer than ISER_HEADERS_LEN (76) bytes, so the subtraction underflows and login_req_len becomes negative.

isert_rx_login_req() then reads that negative length back into a signed int, takes size = min(rx_buflen, MAX_KEY_VALUE_PAIRS), and because the min() is signed it keeps the negative value; the value is then passed as the memcpy() length and sign-extended to a multi-gigabyte size_t. The copy into the 8192-byte login->req_buf runs far out of bounds and faults, crashing the target node. The login phase precedes iSCSI authentication, so no credentials are required to reach this path.

Reject any login PDU shorter than ISER_HEADERS_LEN before the subtraction, mirroring the existing early return on a failed work completion, so login_req_len can never go negative. The upper bound was already safe: a posted login buffer cannot deliver more than ISER_RX_PAYLOAD_SIZE, so the difference stays at or below MAX_KEY_VALUE_PAIRS and the existing min() clamps it; only the missing lower bound needs to be added.(CVE-2026-53176)

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: kl5kusb105: fix bulk-out buffer overflow

klsi_105_prepare_write_buffer() is called by the generic write path with the bulk-out buffer and its size…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: check tdls flag in ieee80211_tdls_oper

When NL80211_TDLS_ENABLE_LINK is called, the code only checks if the station exists but not whether it is actually a TDLS station. This allows the operation to proceed for non-TDLS stations, causing unintended side effects like modifying channel context and HT protection before failing.

Add a check for sta->sta.tdls early in the ENABLE_LINK case, before any side effects occur, to ensure the operation is only allowed for actual TDLS peers.(CVE-2026-43052)

In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: validate bsscfg indices in IF events

brcmf_fweh_handle_if_event() validates the firmware-provided interface index before it touches drvr->iflist[], but it still uses the raw bsscfgidx field as an array index without a matching range check.

Reject IF events whose bsscfg index does not fit in drvr->iflist[] before indexing the interface array.

add missing wifi prefix

In the Linux kernel, the following vulnerability has been resolved:

HID: roccat: fix use-after-free in roccat_report_event

roccat_report_event() iterates over the device->readers list without holding the readers_lock. This allows a concurrent roccat_release() to remove and free a reader while it's still being accessed, leading to a use-after-free.

Protect the readers list traversal with the readers_lock mutex.(CVE-2026-43111)

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()

The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8 bytes via memset without checking the buffer size parameter. This allows unprivileged userspace to trigger an out-of bounds kernel memory write by passing a small buffer, leading to potential privilege escalation.(CVE-2026-43206)

In the Linux kernel, the following vulnerability has been resolved:

ext4: drop extent cache after doing PARTIAL_VALID1 zeroout

When splitting an unwritten extent in the middle and converting it to initialized in ext4_split_extent() with the EXT4_EXT_MAY_ZEROOUT and EXT4_EXT_DATA_VALID2 flags set, it could leave a stale unwritten extent.

Assume we have an unwritten file and buffered write in the middle of it without dioread_nolock enabled, it will allocate blocks as written extent.

   0  A      B  N
   [UUUUUUUUUUUU] on-disk extent      U: unwritten extent
   [UUUUUUUUUUUU] extent status tree
   [--DDDDDDDD--]                     D: valid data
      |<-  ->| ----> this range needs to be initialized

ext4_split_extent() first try to split this extent at B with EXT4_EXT_DATA_PARTIAL_VALID1 and EXT4_EXT_MAY_ZEROOUT flag set, but ext4_split_extent_at() failed to split this extent due to temporary lack of space. It zeroout B to N and leave the entire extent as unwritten.

   0  A      B  N
   [UUUUUUUUUUUU] on-disk extent
   [UUUUUUUUUUUU] extent status tree
   [--DDDDDDDDZZ]                     Z: zeroed data

ext4_split_extent() then try to split this extent at A with EXT4_EXT_DATA_VALID2 flag set. This time, it split successfully and leave an written extent from A to N.

   0  A      B  N
   [UUWWWWWWWWWW] on-disk extent      W: written extent
   [UUUUUUUUUUUU] extent status tree
   [--DDDDDDDDZZ]

Finally ext4_map_create_blocks() only insert extent A to B to the extent status tree, and leave an stale unwritten extent in the status tree.

   0  A      B  N
   [UUWWWWWWWWWW] on-disk extent      W: written extent
   [UUWWWWWWWWUU] extent status tree
   [--DDDDDDDDZZ]

Fix this issue by always cached extent status entry after zeroing out the second part.(CVE-2026-45892)

In the Linux kernel, the following vulnerability has been resolved:

ext4: drop extent cache when…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

xfs: remove xfs_attr_leaf_hasname

The calling convention of xfs_attr_leaf_hasname() is problematic, because it returns a NULL buffer when xfs_attr3_leaf_read fails, a valid buffer when xfs_attr3_leaf_lookup_int returns -ENOATTR or -EEXIST, and a non-NULL buffer pointer for an already released buffer when xfs_attr3_leaf_lookup_int fails with other error values.

Fix this by simply open coding xfs_attr_leaf_hasname in the callers, so that the buffer release code is done by each caller of xfs_attr3_leaf_read.(CVE-2026-43153)

In the Linux kernel, the following vulnerability has been resolved:

x86/kexec: Disable KCOV instrumentation after load_segments()

The load_segments() function changes segment registers, invalidating GS base (which KCOV relies on for per-cpu data). When CONFIG_KCOV is enabled, any subsequent instrumented C code call (e.g. native_gdt_invalidate()) begins crashing the kernel in an endless loop.

To reproduce the problem, it's sufficient to do kexec on a KCOV-instrumented kernel:

$ kexec -l /boot/otherKernel $ kexec -e

The real-world context for this problem is enabling crash dump collection in syzkaller. For this, the tool loads a panic kernel before fuzzing and then calls makedumpfile after the panic. This workflow requires both CONFIG_KEXEC and CONFIG_KCOV to be enabled simultaneously.

Adding safeguards directly to the KCOV fast-path (__sanitizer_cov_trace_pc()) is also undesirable as it would introduce an extra performance overhead.

Disabling instrumentation for the individual functions would be too fragile, so disable KCOV instrumentation for the entire machine_kexec_64.c and physaddr.c. If coverage-guided fuzzing ever needs these components in the future, other approaches should be considered.

The problem is not relevant for 32 bit kernels as CONFIG_KCOV is not supported there.

bp: Space out comment for better readability.

In the Linux kernel, the following vulnerability has been resolved:

apparmor: Fix & Optimize table creation from possibly unaligned memory

Source blob may come from userspace and might be unaligned. Try to optize the copying process by avoiding unaligned memory accesses.

• Added Fixes tag
• Added "Fix &" to description as this doesn't just optimize but fixes a potential unaligned memory access jj: remove duplicate word "convert" in comment trigger checkpatch warning

In the Linux kernel, the following vulnerability has been resolved:

nvmet-tcp: fix race between ICReq handling and queue teardown

nvmet_tcp_handle_icreq() updates queue->state after sending an Initialization Connection Response (ICResp), but it does so without serializing against target-side queue teardown.

If an NVMe/TCP host sends an Initialization Connection Request (ICReq) and immediately closes the connection, target-side teardown may start in softirq context before io_work drains the already buffered ICReq. In that case, nvmet_tcp_schedule_release_queue() sets queue->state to NVMET_TCP_Q_DISCONNECTING and drops the queue reference under state_lock.

If io_work later processes that ICReq, nvmet_tcp_handle_icreq() can still overwrite the state back to NVMET_TCP_Q_LIVE. That defeats the DISCONNECTING-state guard in nvmet_tcp_schedule_release_queue() and allows a later socket state change to re-enter teardown and issue a second kref_put() on an already released queue.

The ICResp send failure path has the same problem. If teardown has already moved the queue to DISCONNECTING, a send error can still overwrite the state with NVMET_TCP_Q_FAILED, again reopening the window for a second teardown path to drop the queue reference.

Fix this by serializing both post-send state transitions with state_lock and bailing out if teardown has already started.

Use -ESHUTDOWN as an…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

xfs: remove xfs_attr_leaf_hasname

The calling convention of xfs_attr_leaf_hasname() is problematic, because it returns a NULL buffer when xfs_attr3_leaf_read fails, a valid buffer when xfs_attr3_leaf_lookup_int returns -ENOATTR or -EEXIST, and a non-NULL buffer pointer for an already released buffer when xfs_attr3_leaf_lookup_int fails with other error values.

Fix this by simply open coding xfs_attr_leaf_hasname in the callers, so that the buffer release code is done by each caller of xfs_attr3_leaf_read.(CVE-2026-43153)

In the Linux kernel, the following vulnerability has been resolved:

x86/kexec: Disable KCOV instrumentation after load_segments()

The load_segments() function changes segment registers, invalidating GS base (which KCOV relies on for per-cpu data). When CONFIG_KCOV is enabled, any subsequent instrumented C code call (e.g. native_gdt_invalidate()) begins crashing the kernel in an endless loop.

To reproduce the problem, it's sufficient to do kexec on a KCOV-instrumented kernel:

$ kexec -l /boot/otherKernel $ kexec -e

The real-world context for this problem is enabling crash dump collection in syzkaller. For this, the tool loads a panic kernel before fuzzing and then calls makedumpfile after the panic. This workflow requires both CONFIG_KEXEC and CONFIG_KCOV to be enabled simultaneously.

Adding safeguards directly to the KCOV fast-path (__sanitizer_cov_trace_pc()) is also undesirable as it would introduce an extra performance overhead.

Disabling instrumentation for the individual functions would be too fragile, so disable KCOV instrumentation for the entire machine_kexec_64.c and physaddr.c. If coverage-guided fuzzing ever needs these components in the future, other approaches should be considered.

The problem is not relevant for 32 bit kernels as CONFIG_KCOV is not supported there.

bp: Space out comment for better readability.

In the Linux kernel, the following vulnerability has been resolved:

nvmet-tcp: fix race between ICReq handling and queue teardown

nvmet_tcp_handle_icreq() updates queue->state after sending an Initialization Connection Response (ICResp), but it does so without serializing against target-side queue teardown.

If an NVMe/TCP host sends an Initialization Connection Request (ICReq) and immediately closes the connection, target-side teardown may start in softirq context before io_work drains the already buffered ICReq. In that case, nvmet_tcp_schedule_release_queue() sets queue->state to NVMET_TCP_Q_DISCONNECTING and drops the queue reference under state_lock.

If io_work later processes that ICReq, nvmet_tcp_handle_icreq() can still overwrite the state back to NVMET_TCP_Q_LIVE. That defeats the DISCONNECTING-state guard in nvmet_tcp_schedule_release_queue() and allows a later socket state change to re-enter teardown and issue a second kref_put() on an already released queue.

The ICResp send failure path has the same problem. If teardown has already moved the queue to DISCONNECTING, a send error can still overwrite the state with NVMET_TCP_Q_FAILED, again reopening the window for a second teardown path to drop the queue reference.

Fix this by serializing both post-send state transitions with state_lock and bailing out if teardown has already started.

Use -ESHUTDOWN as an internal sentinel for that bail-out path rather than propagating it as a transport error like -ECONNRESET. Keep nvmet_tcp_socket_error() setting rcv_state to NVMET_TCP_RECV_ERR before honoring that sentinel so receive-side parsing stays quiesced until the existing release path completes.(CVE-2026-46135)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: use list_del_rcu for netlink hooks

nft_netdev_unregister_hooks and __nft_unregister_flowtable_net_hooks need to use list_del_rcu(), this list…

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

• kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)

• kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle ()

• kernel: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (CVE-2026-64530)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

Bug Fix(es) and Enhancement(s):

• Rocky Linux8.10 - KVM: s390: Limit adapter indicator access to mapped page (JIRA:Rocky Linux-183880)

• CIFS mounts do not work with the latest kernel (JIRA:Rocky Linux-213976)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

Bug Fix(es) and Enhancement(s):

• Rocky Linux8.10 - KVM: s390: Limit adapter indicator access to mapped page (JIRA:Rocky Linux-183880)

• CIFS mounts do not work with the latest kernel (JIRA:Rocky Linux-213976)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: fsnotify: Fix ordering of iput() and watched_objects decrement (CVE-2024-53143)

• kernel: shmem: fix recovery on rename failures (CVE-2025-71072)

• kernel: futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy() (CVE-2026-23415)

• kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

• kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368)

• kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)

Bug Fix(es) and Enhancement(s):

• Kernel oops after increasing max number of mac addresses of a mlx5 VF [rhel-10.2.z] (JIRA:Rocky Linux-213035)

• Rocky Linux10.0 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [rhel-10.2.z] (JIRA:Rocky Linux-222503)

• Rocky Linux10.0 - s390/pkey: Check length in pkey_pckmo handler implementation [rhel-10.2.z] (JIRA:Rocky Linux-222505)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

Bug Fix(es) and Enhancement(s):

• Rocky Linux SIG Cloud8.10 - KVM: s390: Limit adapter indicator access to mapped page (JIRA:Rocky Linux SIG Cloud-183880)

• CIFS mounts do not work with the latest kernel (JIRA:Rocky Linux SIG Cloud-213976)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved: ipc: limit next_id allocation to the valid ID range The checkpoint/restore sysctl path can request the next SysV IPC id through ids->next_id. ipc_idr_alloc() currently forwards that request to idr_alloc() with an open-ended upper bound. If the valid tail of the SysV IPC id space is full, the allocation can spill beyond ipc_mni. The returned SysV IPC id still uses the normal index encoding, so later lookup and removal can target the wrong slot. This leaves the real IDR entry behind and breaks the IDR state for the object. The bug is in ipc_idr_alloc() in the checkpoint/restore path. 1. ids->next_id is passed to: idr_alloc(&ids->ipcs_idr, new, ipcid_to_idx(next_id), 0, ...) 2. The zero upper bound makes the allocation effectively open-ended. Once the valid SysV IPC tail is occupied, idr_alloc() can spill past ipc_mni and allocate an entry beyond the valid IPC id range. 3. The new object id is still encoded with the narrower SysV IPC index width: new->id = (new->seq << ipcmni_seq_shift()) + idx 4. Later removal goes through ipc_rmid(), which uses: ipcid_to_idx(ipcp->id) That truncates the real IDR index. An object actually stored at a high index can then be removed as if it lived at a low in-range index. 5. For shared memory, shm_destroy() frees the current object anyway, but the real high IDR slot is left behind as a dangling pointer. 6. A subsequent walk of /proc/sysvipc/shm reaches the stale IDR entry and dereferences freed memory. Prevent this by bounding the requested allocation to ipc_mni so the checkpoint/restore path fails once the valid range is exhausted.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)
• kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)
• kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle ()
• kernel: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (CVE-2026-64530)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

Bug Fix(es) and Enhancement(s):

• AlmaLinux8.10 - KVM: s390: Limit adapter indicator access to mapped page (JIRA:AlmaLinux-183880)
• CIFS mounts do not work with the latest kernel (JIRA:AlmaLinux-213976)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

Bug Fix(es) and Enhancement(s):

• AlmaLinux8.10 - KVM: s390: Limit adapter indicator access to mapped page (JIRA:AlmaLinux-183880)
• CIFS mounts do not work with the latest kernel (JIRA:AlmaLinux-213976)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: fsnotify: Fix ordering of iput() and watched_objects decrement (CVE-2024-53143)
• kernel: shmem: fix recovery on rename failures (CVE-2025-71072)
• kernel: futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy() (CVE-2026-23415)
• kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
• kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)
• kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368)
• kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)

Bug Fix(es) and Enhancement(s):

• Kernel oops after increasing max number of mac addresses of a mlx5 VF [almalinux-10.2.z] (JIRA:AlmaLinux-213035)
• AlmaLinux10.0 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [almalinux-10.2.z] (JIRA:AlmaLinux-222503)
• AlmaLinux10.0 - s390/pkey: Check length in pkey_pckmo handler implementation [almalinux-10.2.z] (JIRA:AlmaLinux-222505)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved:

ipc: limit next_id allocation to the valid ID range

The checkpoint/restore sysctl path can request the next SysV IPC id through ids->next_id. ipc_idr_alloc() currently forwards that request to idr_alloc() with an open-ended upper bound.

If the valid tail of the SysV IPC id space is full, the allocation can spill beyond ipc_mni. The returned SysV IPC id still uses the normal index encoding, so later lookup and removal can target the wrong slot. This leaves the real IDR entry behind and breaks the IDR state for the object.

The bug is in ipc_idr_alloc() in the checkpoint/restore path.

1. ids->next_id is passed to:

   idr_alloc(&ids->ipcs_idr, new, ipcid_to_idx(next_id), 0, ...)
   

2. The zero upper bound makes the allocation effectively open-ended. Once the valid SysV IPC tail is occupied, idr_alloc() can spill past ipc_mni and allocate an entry beyond the valid IPC id range.

3. The new object id is still encoded with the narrower SysV IPC index width:

   new->id = (new->seq << ipcmni_seq_shift()) + idx
   

4. Later removal goes through ipc_rmid(), which uses:

   ipcid_to_idx(ipcp->id)
   

   That truncates the real IDR index. An object actually stored at a high index can then be removed as if it lived at a low in-range index.

5. For shared memory, shm_destroy() frees the current object anyway, but the real high IDR slot is left behind as a dangling pointer.

6. A subsequent walk of /proc/sysvipc/shm reaches the stale IDR entry and dereferences freed memory.

Prevent this by bounding the requested allocation to ipc_mni so the checkpoint/restore path fails once the valid range is exhausted.

• mac802154: llsec: reject frames shorter than the authentication tag {CVE-2026-68125}
• KVM: x86/mmu: Fix use-after-free on vendor module reload {CVE-2026-68428}
• wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper {CVE-2026-68197}
• bpf: account for current allocated stack depth in widen_imprecise_scalars() {CVE-2025-68208}
• tun: free page on build_skb failure in tun_xdp_one() {CVE-2026-46322}
• smb: client: fix potential cfid UAF in smb2_query_info_compound {CVE-2025-40320}
• net/packet: avoid fanout hook re-registration after unregister {CVE-2026-68338}
• wifi: cfg80211: cancel sched scan results work on unregister {CVE-2026-68414}
• binfmt_misc: set have_execfd only once the interpreter is opened {CVE-2026-68186}
• tracing: Fix resource leak on mmiotrace trace_pipe close {CVE-2026-68175}
• tipc: fix u16 MTU truncation in media and bearer MTU validation {CVE-2026-68297}
• net: gro: fix double aggregation of flush-marked skbs {CVE-2026-68136}
• bpf, sockmap: Reject unhashed UDP sockets on sockmap update {CVE-2026-68386}
• wifi: brcmfmac: fix 802.1X-SHA256 call trace warning {CVE-2026-68304}
• udf: fix partition descriptor append bookkeeping {CVE-2026-45991}
• Bluetooth: SCO: fix race conditions in sco_sock_connect() {CVE-2026-43023}
• smb: client: validate dacloffset before building DACL pointers {CVE-2026-46195}
• smb/client: fix out-of-bounds read in symlink_data() {CVE-2026-46185}
• net: rtnetlink: zero ifla_vf_broadcast to avoid stack infoleak in rtnl_fill_vfinfo {CVE-2026-46132}
• Bluetooth: hci_event: fix potential UAF in SSP passkey handlers {CVE-2026-46056}
• RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send {CVE-2026-45856}
• RDMA/mana: Validate rx_hash_key_len {CVE-2026-46145}
• scsi: qla2xxx: Completely fix fcport double free {CVE-2026-43414}
• bpf: Fix bpf_xdp_store_bytes proto for read-only arg {CVE-2026-45886}
• libceph: Fix slab-out-of-bounds access in auth message processing {CVE-2026-46119}
• wifi: mac80211: use safe list iteration in radar detect work {CVE-2026-46166}
• RDMA/rxe: Reject non-8-byte ATOMIC_WRITE payloads {CVE-2026-46114}
• nfsd: never defer requests during idmap lookup {CVE-2026-45983}
• drop_monitor: fix size calculations for 64-bit attributes {CVE-2026-68287}
• openvswitch: cap upcall PID array size and pre-size vport replies {CVE-2026-45840}
• procfs: fix missing RCU protection when reading real_parent in do_task_stat() {CVE-2026-46259}
• wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() {CVE-2026-46069}
• dm mirror: fix integer overflow in create_dirty_log() {CVE-2026-46023}
• netfilter: nft_inner: Fix IPv6 inner_thoff desync {CVE-2026-46244}
• drm/dp_mst: Handle torn-down topology gracefully in drm_dp_mst_topology_queue_probe() {CVE-2026-68429}
• crypto: authencesn - reject short ahash digests during instance creation {CVE-2026-46033}
• RDMA/rxe: Fix race condition in QP timer handlers {CVE-2026-45910}
• wifi: mac80211: remove station if connection prep fails {CVE-2026-46125}
• tcp: call sk_data_ready() after listener migration {CVE-2026-46015}
• scsi: lpfc: Avoid potential ndlp use-after-free in dev_loss_tmo_callbk {CVE-2025-38289}
• net/sched: act_ct: Only release RCU read lock after ct_ft {CVE-2026-46319}
• dm: fix a buffer overflow in ioctl processing {CVE-2026-46294}
• io-wq: check that the predecessor is hashed in io_wq_remove_pending() {CVE-2026-46274}
• wifi: mac80211: drop stray 'static' from fast-RX rx_result {CVE-2026-46152}
• io_uring/poll: fix signed comparison in io_poll_get_ownership() {CVE-2026-52933}
• xfrm: espintcp: do not reuse an in-progress partial send {CVE-2026-52935}
• Bluetooth: btusb: validate Realtek vendor event length {CVE-2026-68339}
• Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() {CVE-2026-53256}
• Bluetooth: RFCOMM: validate skb length in MCC handlers {CVE-2026-53254}
• netfilter: nft_exthdr: fix register tracking for F_PRESENT flag {CVE-2026-53218}
• ipc: limit next_id…

• ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF {CVE-2023-0266}
• net: account for encap headers in qdisc pkt len {CVE-2026-53091}
• kabi: add tcp_v4_syn_recv_sock to the x86_64 kABI whitelist {CVE-2026-43198}
• Update to kernel 3.10.0-1160.164.1.el7
• netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}
• netfilter: expect: fix crash when putting uninited expectation {CVE-2026-43116}
• netfilter: nf_ct_expect: Add nf_ct_remove_expect() {CVE-2026-43116}
• Revert "netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}"
• netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• sctp: prevent peer transport count overflow {CVE-2026-74469}
• xfrm: ah6: validate routing header segments_left {CVE-2026-80844}
• i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• i2c: stub: Avoid an array overrun on I2C block transfers {CVE-2026-64191}
• USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() {CVE-2026-53195}
• USB: serial: io_ti: fix heap overflow in get_manuf_info() {CVE-2026-53196}
• netfilter: nft_rbtree: ignore inactive matching element with no descendants
• netfilter: nft_rbtree: introduce nft_rbtree_interval_end() helper
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• netfilter: conntrack: check netns when walking expect hash
• netfilter: nf_tables: don't skip expired elements during walk {CVE-2023-52924}
• net: atm: fix crash due to unvalidated vcc pointer in sigd_send() {CVE-2026-31411}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• macsec: don't read an unset MAC header in macsec_encrypt() {CVE-2026-72019}
• dm-ioctl: fix a possible overflow in list_version_get_info {CVE-2026-72106}
• drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON() {CVE-2026-68111}
• drm/amdgpu: fix division by zero with invalid uvd dimensions {CVE-2026-68106}
• driver core: enforce device_lock for driver_match_device() {CVE-2026-31688}
• proc: protect ptrace_may_access() with exec_update_lock (FD links) {CVE-2026-64375}
• net: tun: bound receive headroom {CVE-2026-81000}
• cpufreq: pcc: fix use-after-free and double free in _OSC evaluation {CVE-2026-64372}
• wifi: rt2x00: avoid full teardown before work setup in probe {CVE-2026-72005}
• ipvs: reset full ip_vs_seq structs in ip_vs_conn_new {CVE-2026-72020}
• scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE {CVE-2026-72083}
• bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp() {CVE-2026-72039}
• net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked {CVE-2026-72036}
• vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets {CVE-2026-68299}
• drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved {CVE-2026-68234}
• tracing: Fix resource leak on mmiotrace trace_pipe close {CVE-2026-68175}
• media: pci: dm1105: Free allocated workqueue {CVE-2026-68218}
• IB/mad: Drop unmatched RMPP responses before reassembly {CVE-2026-68425}
• USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}
• USB: legousbtower: fix use-after-free on disconnect race {CVE-2026-64340}
• bpf: Preserve pointer state for commuted arithmetic {CVE-2026-74720}
• ALSA: usb-audio: Fix out of bounds reads when finding clock sources {CVE-2024-53150}
• tcp: keep kABI of tcp_v4_syn_recv_sock() for the CVE-2026-43198 fix
• crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg {CVE-2025-39964}
• tracing: Free buffers when a used dynamic event is removed {CVE-2022-49006}

• ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF {CVE-2023-0266}
• net: account for encap headers in qdisc pkt len {CVE-2026-53091}
• kabi: add tcp_v4_syn_recv_sock to the x86_64 kABI whitelist {CVE-2026-43198}
• Update to kernel 3.10.0-1160.164.1.el7
• netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}
• netfilter: expect: fix crash when putting uninited expectation {CVE-2026-43116}
• netfilter: nf_ct_expect: Add nf_ct_remove_expect() {CVE-2026-43116}
• Revert "netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}"
• netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• sctp: prevent peer transport count overflow {CVE-2026-74469}
• xfrm: ah6: validate routing header segments_left {CVE-2026-80844}
• i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• i2c: stub: Avoid an array overrun on I2C block transfers {CVE-2026-64191}
• USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() {CVE-2026-53195}
• USB: serial: io_ti: fix heap overflow in get_manuf_info() {CVE-2026-53196}
• netfilter: nft_rbtree: ignore inactive matching element with no descendants
• netfilter: nft_rbtree: introduce nft_rbtree_interval_end() helper
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• netfilter: conntrack: check netns when walking expect hash
• netfilter: nf_tables: don't skip expired elements during walk {CVE-2023-52924}
• net: atm: fix crash due to unvalidated vcc pointer in sigd_send() {CVE-2026-31411}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• macsec: don't read an unset MAC header in macsec_encrypt() {CVE-2026-72019}
• dm-ioctl: fix a possible overflow in list_version_get_info {CVE-2026-72106}
• drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON() {CVE-2026-68111}
• drm/amdgpu: fix division by zero with invalid uvd dimensions {CVE-2026-68106}
• driver core: enforce device_lock for driver_match_device() {CVE-2026-31688}
• proc: protect ptrace_may_access() with exec_update_lock (FD links) {CVE-2026-64375}
• net: tun: bound receive headroom {CVE-2026-81000}
• cpufreq: pcc: fix use-after-free and double free in _OSC evaluation {CVE-2026-64372}
• wifi: rt2x00: avoid full teardown before work setup in probe {CVE-2026-72005}
• ipvs: reset full ip_vs_seq structs in ip_vs_conn_new {CVE-2026-72020}
• scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE {CVE-2026-72083}
• bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp() {CVE-2026-72039}
• net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked {CVE-2026-72036}
• vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets {CVE-2026-68299}
• drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved {CVE-2026-68234}
• tracing: Fix resource leak on mmiotrace trace_pipe close {CVE-2026-68175}
• media: pci: dm1105: Free allocated workqueue {CVE-2026-68218}
• IB/mad: Drop unmatched RMPP responses before reassembly {CVE-2026-68425}
• USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}
• USB: legousbtower: fix use-after-free on disconnect race {CVE-2026-64340}
• bpf: Preserve pointer state for commuted arithmetic {CVE-2026-74720}
• ALSA: usb-audio: Fix out of bounds reads when finding clock sources {CVE-2024-53150}
• tcp: keep kABI of tcp_v4_syn_recv_sock() for the CVE-2026-43198 fix
• crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg {CVE-2025-39964}
• tracing: Free buffers when a used dynamic event is removed {CVE-2022-49006}

• ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF {CVE-2023-0266}
• net: account for encap headers in qdisc pkt len {CVE-2026-53091}
• kabi: add tcp_v4_syn_recv_sock to the x86_64 kABI whitelist {CVE-2026-43198}
• Update to kernel 3.10.0-1160.164.1.el7
• netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}
• netfilter: expect: fix crash when putting uninited expectation {CVE-2026-43116}
• netfilter: nf_ct_expect: Add nf_ct_remove_expect() {CVE-2026-43116}
• Revert "netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}"
• netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• sctp: prevent peer transport count overflow {CVE-2026-74469}
• xfrm: ah6: validate routing header segments_left {CVE-2026-80844}
• i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• i2c: stub: Avoid an array overrun on I2C block transfers {CVE-2026-64191}
• USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() {CVE-2026-53195}
• USB: serial: io_ti: fix heap overflow in get_manuf_info() {CVE-2026-53196}
• netfilter: nft_rbtree: ignore inactive matching element with no descendants
• netfilter: nft_rbtree: introduce nft_rbtree_interval_end() helper
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• netfilter: conntrack: check netns when walking expect hash
• netfilter: nf_tables: don't skip expired elements during walk {CVE-2023-52924}
• net: atm: fix crash due to unvalidated vcc pointer in sigd_send() {CVE-2026-31411}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• macsec: don't read an unset MAC header in macsec_encrypt() {CVE-2026-72019}
• dm-ioctl: fix a possible overflow in list_version_get_info {CVE-2026-72106}
• drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON() {CVE-2026-68111}
• drm/amdgpu: fix division by zero with invalid uvd dimensions {CVE-2026-68106}
• driver core: enforce device_lock for driver_match_device() {CVE-2026-31688}
• proc: protect ptrace_may_access() with exec_update_lock (FD links) {CVE-2026-64375}
• net: tun: bound receive headroom {CVE-2026-81000}
• cpufreq: pcc: fix use-after-free and double free in _OSC evaluation {CVE-2026-64372}
• wifi: rt2x00: avoid full teardown before work setup in probe {CVE-2026-72005}
• ipvs: reset full ip_vs_seq structs in ip_vs_conn_new {CVE-2026-72020}
• scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE {CVE-2026-72083}
• bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp() {CVE-2026-72039}
• net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked {CVE-2026-72036}
• vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets {CVE-2026-68299}
• drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved {CVE-2026-68234}
• tracing: Fix resource leak on mmiotrace trace_pipe close {CVE-2026-68175}
• media: pci: dm1105: Free allocated workqueue {CVE-2026-68218}
• IB/mad: Drop unmatched RMPP responses before reassembly {CVE-2026-68425}
• USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}
• USB: legousbtower: fix use-after-free on disconnect race {CVE-2026-64340}
• bpf: Preserve pointer state for commuted arithmetic {CVE-2026-74720}
• ALSA: usb-audio: Fix out of bounds reads when finding clock sources {CVE-2024-53150}
• tcp: keep kABI of tcp_v4_syn_recv_sock() for the CVE-2026-43198 fix
• crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg {CVE-2025-39964}
• tracing: Free buffers when a used dynamic event is removed {CVE-2022-49006}

• CVE-2026-99999
  • ipv4: validate checksum_start before completing checksum {CVE-2026-99999}
• CVE-2026-43250
  • usb: chipidea: udc: fix DMA and SG cleanup in _ep_nuke() {CVE-2026-43250}
• CVE-2026-43281
  • mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() {CVE-2026-43281}
• CVE-2025-38595
  • xen: fix UAF in dmabuf_exp_from_pages() {CVE-2025-38595}
• CVE-2026-89610
  • ntfs: verify run length exceeding volume boundary {CVE-2026-89610}
• CVE-2026-74540
  • Bluetooth: L2CAP: fix UAF in l2cap_le_connect_rsp {CVE-2026-74540}
• CVE-2023-52935
  • mm/khugepaged: fix ->anon_vma race {CVE-2023-52935}
• CVE-2026-64225
  • octeontx2-af: CGX: add bounds check to cgx_speed_mbps index {CVE-2026-64225}
• CVE-2026-31489
  • spi: meson-spicc: Fix double-put in remove path {CVE-2026-31489}
• CVE-2026-53068
  • drm/komeda: fix integer overflow in AFBC framebuffer size check {CVE-2026-53068}
• CVE-2026-64249
  • fpga: region: fix use-after-free in child_regions_with_firmware() {CVE-2026-64249}
• CVE-2026-64007
  • netfilter: synproxy: refresh tcphdr after skb_ensure_writable {CVE-2026-64007}
• CVE-2026-98320
  • netfilter: flowtable: hold reference on ct until flow is released {CVE-2026-98320}
• CVE-2026-98248
  • arm64: percpu: Fix LSE operations on {8,16}-bit types {CVE-2026-98248}
• CVE-2026-98375
  • xen/netfront: drop RX packets with a short Ethernet header {CVE-2026-98375}
• CVE-2026-98312
  • ALSA: 6fire: fix OOB write from device-reported iso length {CVE-2026-98312}
• CVE-2026-98269
  • btrfs: abort transaction on failure to update inode for hole punching and reflinking {CVE-2026-98269}
• CVE-2026-98194
  • wifi: libertas_tf: fix UAF in lbtf_free_adapter() {CVE-2026-98194}
• CVE-2026-98354
  • RDMA/mad: Fix receive buffer leak when PKey enforcement fails {CVE-2026-98354}
• CVE-2026-64015
  • security/keys: fix missed RCU read section on lookup {CVE-2026-64015}
• CVE-2026-63800
  • pNFS: Fix use-after-free in pnfs_update_layout() {CVE-2026-63800}
• CVE-2026-98349
  • wifi: libipw: reject too-short beacon and probe responses {CVE-2026-98349}
• CVE-2026-98348
  • wifi: libipw: reject too-short association responses {CVE-2026-98348}
• CVE-2026-98217
  • IB/mlx4: Fix use-after-free on pkey sysfs registration failure {CVE-2026-98217}
• CVE-2026-98196
  • wifi: brcmsmac: fix UAF in brcms_free_timer() {CVE-2026-98196}
• CVE-2026-64002
  • ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() {CVE-2026-64002}
• CVE-2026-52923
  • ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• CVE-2026-98276
  • net: lock the socket in sock_gettstamp() {CVE-2026-98276}
• CVE-2026-63967
  • iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer {CVE-2026-63967}
• CVE-2026-63912
  • xfrm: esp: restore combined single-frag length gate {CVE-2026-63912}
• CVE-2026-98193
  • wifi: libipw: reject TKIP frames without a full MIC {CVE-2026-98193}
• CVE-2026-98185
  • wifi: mwifiex: validate scan response extents {CVE-2026-98185}
• CVE-2026-98171
  • smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs {CVE-2026-98171}
• CVE-2026-97540
  • net: usb: pegasus: don't rely on id table pointer arithmetic {CVE-2026-97540}
• CVE-2026-97608
  • netfilter: nf_log: unregister loggers before per-net teardown {CVE-2026-97608}
• CVE-2026-97908
  • Bluetooth: btqcomsmd: destroy RPMsg endpoints before freeing hci_dev {CVE-2026-97908}
• CVE-2026-93830
  • net: stmmac: xgmac2: disable RBUE in default RX interrupt mask {CVE-2026-93830}
• CVE-2026-93817
  • perf: Fix addr_filter_ranges lifetime {CVE-2026-93817}
• CVE-2026-98017
  • net/sched:…

• CVE-2026-99999
  • ipv4: validate checksum_start before completing checksum {CVE-2026-99999}
• CVE-2026-64015
  • security/keys: fix missed RCU read section on lookup {CVE-2026-64015}
• CVE-2023-53282
  • scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write {CVE-2023-53282}
• CVE-2026-43250
  • usb: chipidea: udc: fix DMA and SG cleanup in _ep_nuke() {CVE-2026-43250}
• CVE-2026-43281
  • mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() {CVE-2026-43281}
• CVE-2026-97612
  • net: mpls: clear inner_protocol when the last label is popped {CVE-2026-97612}
• CVE-2026-68093
  • KVM: SVM: Bump asid_generation on CPU online to avoid ASID collision after hotplug {CVE-2026-68093}
• CVE-2026-89637
  • smb: client: fix UAF and buffer leak in cifs_check_trans2() for malformed secondary T2 {CVE-2026-89637}
• CVE-2026-89633
  • smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() {CVE-2026-89633}
• CVE-2026-80681
  • vxlan: re-fetch eth header after route_shortcircuit() {CVE-2026-80681}
• CVE-2025-68188
  • tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() {CVE-2025-68188}
• CVE-2026-68329
  • iommu/amd: Wait for completion instead of returning early in iommu_completion_wait() {CVE-2026-68329}
• CVE-2026-72157
  • net: thunderbolt: Fix frags[] overflow by bounding frame_count {CVE-2026-72157}
• CVE-2026-64305
  • crypto: qat - protect service table iterations with service_lock {CVE-2026-64305}
• CVE-2026-64304
  • crypto: qat - validate RSA CRT component lengths {CVE-2026-64304}
• CVE-2026-64449
  • staging: vme_user: bound slave read/write to the kern_buf size {CVE-2026-64449}
• CVE-2026-90223
  • nfc: llcp: bound SNL TLV parsing to the skb and add length checks {CVE-2026-90223}
• CVE-2026-90435
  • RDMA/mlx5: Fix integer overflow of user QP buffer size {CVE-2026-90435}
• CVE-2026-92498
  • wifi: ath6kl: avoid buffer overreads in WMI event handlers {CVE-2026-92498}
• CVE-2026-90414
  • IB/isert: reject PDUs declaring more data than was received {CVE-2026-90414}
• CVE-2026-93175
  • drm/amd/display: Fix dangling pointer in CRTC reset function {CVE-2026-93175}
• CVE-2026-90204
  • ocfs2: validate DIO orphan slot during inode read {CVE-2026-90204}
• CVE-2026-90205
  • ocfs2: validate orphan slot during inode read {CVE-2026-90205}
• CVE-2026-90057
  • slip: remove slip_hangup() to fix use-after-free in slip_receive_buf() {CVE-2026-90057}
• CVE-2026-93189
  • HID: core: quiesce input in hid_hw_stop() to prevent use-after-free {CVE-2026-93189}
• CVE-2026-93163
  • hwrng: core - fix rng list on registration error {CVE-2026-93163}
• CVE-2026-93104
  • RDMA/rvt: Return NULL after port allocation failure {CVE-2026-93104}
• CVE-2026-90116
  • ALSA: mtpav: shut down output timer before card teardown {CVE-2026-90116}
• CVE-2026-90334
  • tty: clear cdev pointer after cdev_add() failure {CVE-2026-90334}
• CVE-2026-90203
  • Squashfs: check block offset is not negative {CVE-2026-90203}
• CVE-2026-90103
  • NFSv4.2: fix LAYOUTSTATS send buffer exhaustion {CVE-2026-90103}
• CVE-2026-90395
  • power: supply: isp1704_charger: cancel work on remove {CVE-2026-90395}
• CVE-2026-93049
  • mtd: mtdswap: Avoid freeing registered blktrans device twice {CVE-2026-93049}
• CVE-2026-93141
  • usb: gadget: r8a66597: avoid double free of ep0_req in probe error path {CVE-2026-93141}
• CVE-2026-52923
  • ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• CVE-2026-64007
  • netfilter: synproxy: refresh tcphdr after skb_ensure_writable {CVE-2026-64007}
• CVE-2026-98375
  • xen/netfront: drop RX packets with a short Ethernet…

• CVE-2026-99999
  • ipv4: validate checksum_start before completing checksum {CVE-2026-99999}
• CVE-2026-64015
  • security/keys: fix missed RCU read section on lookup {CVE-2026-64015}
• CVE-2023-53282
  • scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write {CVE-2023-53282}
• CVE-2026-43250
  • usb: chipidea: udc: fix DMA and SG cleanup in _ep_nuke() {CVE-2026-43250}
• CVE-2026-43281
  • mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() {CVE-2026-43281}
• CVE-2026-97612
  • net: mpls: clear inner_protocol when the last label is popped {CVE-2026-97612}
• CVE-2026-68093
  • KVM: SVM: Bump asid_generation on CPU online to avoid ASID collision after hotplug {CVE-2026-68093}
• CVE-2026-89637
  • smb: client: fix UAF and buffer leak in cifs_check_trans2() for malformed secondary T2 {CVE-2026-89637}
• CVE-2026-89633
  • smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() {CVE-2026-89633}
• CVE-2026-80681
  • vxlan: re-fetch eth header after route_shortcircuit() {CVE-2026-80681}
• CVE-2025-68188
  • tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() {CVE-2025-68188}
• CVE-2026-68329
  • iommu/amd: Wait for completion instead of returning early in iommu_completion_wait() {CVE-2026-68329}
• CVE-2026-72157
  • net: thunderbolt: Fix frags[] overflow by bounding frame_count {CVE-2026-72157}
• CVE-2026-64305
  • crypto: qat - protect service table iterations with service_lock {CVE-2026-64305}
• CVE-2026-64304
  • crypto: qat - validate RSA CRT component lengths {CVE-2026-64304}
• CVE-2026-64449
  • staging: vme_user: bound slave read/write to the kern_buf size {CVE-2026-64449}
• CVE-2026-90223
  • nfc: llcp: bound SNL TLV parsing to the skb and add length checks {CVE-2026-90223}
• CVE-2026-90435
  • RDMA/mlx5: Fix integer overflow of user QP buffer size {CVE-2026-90435}
• CVE-2026-92498
  • wifi: ath6kl: avoid buffer overreads in WMI event handlers {CVE-2026-92498}
• CVE-2026-90414
  • IB/isert: reject PDUs declaring more data than was received {CVE-2026-90414}
• CVE-2026-93175
  • drm/amd/display: Fix dangling pointer in CRTC reset function {CVE-2026-93175}
• CVE-2026-90204
  • ocfs2: validate DIO orphan slot during inode read {CVE-2026-90204}
• CVE-2026-90205
  • ocfs2: validate orphan slot during inode read {CVE-2026-90205}
• CVE-2026-90057
  • slip: remove slip_hangup() to fix use-after-free in slip_receive_buf() {CVE-2026-90057}
• CVE-2026-93189
  • HID: core: quiesce input in hid_hw_stop() to prevent use-after-free {CVE-2026-93189}
• CVE-2026-93163
  • hwrng: core - fix rng list on registration error {CVE-2026-93163}
• CVE-2026-93104
  • RDMA/rvt: Return NULL after port allocation failure {CVE-2026-93104}
• CVE-2026-90116
  • ALSA: mtpav: shut down output timer before card teardown {CVE-2026-90116}
• CVE-2026-90334
  • tty: clear cdev pointer after cdev_add() failure {CVE-2026-90334}
• CVE-2026-90203
  • Squashfs: check block offset is not negative {CVE-2026-90203}
• CVE-2026-90103
  • NFSv4.2: fix LAYOUTSTATS send buffer exhaustion {CVE-2026-90103}
• CVE-2026-90395
  • power: supply: isp1704_charger: cancel work on remove {CVE-2026-90395}
• CVE-2026-93049
  • mtd: mtdswap: Avoid freeing registered blktrans device twice {CVE-2026-93049}
• CVE-2026-93141
  • usb: gadget: r8a66597: avoid double free of ep0_req in probe error path {CVE-2026-93141}
• CVE-2026-52923
  • ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• CVE-2026-64007
  • netfilter: synproxy: refresh tcphdr after skb_ensure_writable {CVE-2026-64007}
• CVE-2026-98375
  • xen/netfront: drop RX packets with a short Ethernet…

• net: skbuff: propagate shared-frag marker in skb_zerocopy()
• net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• ALSA: virtio: reset device before deleting virtqueues {CVE-2026-98264}
• ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output() {CVE-2026-90033}
• ALSA: 6fire: Fix UAF at error handling during probe {CVE-2026-74505}
• net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring {CVE-2026-64047}
• SUNRPC: Fix a server shutdown leak {CVE-2023-53131}
• libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() {CVE-2026-52956}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• thunderbolt: Keep XDomain reference during the lifetime of a service {CVE-2026-97509}
• nvdimm/btt: reject an arena whose nfree is below the lane count {CVE-2026-89965}
• libnvdimm/labels: Prevent integer overflow in __nd_label_validate() {CVE-2026-89559}
• wifi: brcmsmac: fix UAF in brcms_free_timer() {CVE-2026-98196}
• wifi: mwifiex: validate scan response extents {CVE-2026-98185}
• net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow {CVE-2026-98025}
• net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put {CVE-2026-98015}
• qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info {CVE-2023-53066}
• Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count {CVE-2026-64277}
• dmaengine: Fix possible use after free {CVE-2026-72476}
• netfilter: nf_log: unregister loggers before per-net teardown {CVE-2026-97608}
• netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state {CVE-2026-93288}
• mpls: add seqcount to protect the platform_label{,s} pair {CVE-2026-43042}
• Bluetooth: L2CAP: fix UAF in l2cap_le_connect_rsp {CVE-2026-74540}
• usb: dwc2: Fix use after free in debug code {CVE-2026-63927}
• KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path {CVE-2026-63794}
• KVM: nVMX: Always flush vpid02 on first use {CVE-2026-89932}
• x86/mm/ident_map: Use gbpages only where full GB page should be mapped. {CVE-2024-50017}
• crypto: authencesn - reject short ahash digests during instance creation {CVE-2026-46033}
• ACPICA: Add validation for node in acpi_ns_build_normalized_path() {CVE-2026-97448}
• drm/amd/pm: bound pp_dpm_set_pp_table() memcpy {CVE-2026-97427}
• drm/vmwgfx: validate DRAW_PRIMITIVES header size before division {CVE-2026-74444}
• HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature {CVE-2026-89729}
• i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• RDMA/ucma: Lock the handler in ucma_set_ib_path() {CVE-2026-89508}
• RDMA/srpt: fix integer overflow in immediate data length check {CVE-2026-74394}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• dm raid1: reserve space for NUL-terminator in build_constructor_string() {CVE-2026-89575}
• veth: fix NAPI leak in XDP enable error path {CVE-2026-80613}
• net: hns3: fix kernel crash when 1588 is received on HIP08 devices {CVE-2024-26881}
• ixgbevf: fix use-after-free in VEPA multicast source pruning {CVE-2026-64113}
• net: mana: validate rx_req_idx to prevent out-of-bounds array access {CVE-2026-64018}
• net: stmmac: xgmac2: disable RBUE in default RX interrupt mask {CVE-2026-93830}
• net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() {CVE-2026-64351}
• net: usb: pegasus: don't rely on id table pointer arithmetic {CVE-2026-97540}
• vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() {CVE-2026-63993}
• wifi: ath9k: fix OOB access from firmware tx status queue ID {CVE-2026-74408}
• PCI: iproc: Protect root bus removal with rescan lock {CVE-2026-93822}
• scsi: qla2xxx: Avoid double completion in async IOCB timeout {CVE-2026-89847}
• fs/mbcache: cancel…

• net: skbuff: propagate shared-frag marker in skb_zerocopy()
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow {CVE-2026-98025}
• ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF {CVE-2026-98116}
• sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START {CVE-2026-98130}
• dm cache policy smq: check allocation under invalidate lock {CVE-2026-53265}
• RDMA/siw: Bound fragmented header copies by the remaining length {CVE-2026-98323}
• tty: clear cdev pointer after cdev_add() failure {CVE-2026-90334}
• tty: skip cdev_del() when no cdev is registered {CVE-2026-90335}
• procfs: fix missing RCU protection when reading real_parent in do_task_stat() {CVE-2026-46259}
• sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL {CVE-2026-46227}
• drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() {CVE-2026-46209}
• drm: Remove plane hsub/vsub alignment requirement for core helpers {CVE-2026-46209}
• RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path {CVE-2026-46189}
• RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() {CVE-2026-46181}
• scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() {CVE-2026-46149}
• RDMA/rxe: Reject unknown opcodes before ICRC processing {CVE-2026-46133}
• ip6_gre: Use cached t->net in ip6erspan_changelink(). {CVE-2026-46120}
• libceph: Fix slab-out-of-bounds access in auth message processing {CVE-2026-46119}
• Bluetooth: hci_event: fix potential UAF in SSP passkey handlers {CVE-2026-46056}
• net: qrtr: ns: Fix use-after-free in driver remove() {CVE-2026-46047}
• RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv {CVE-2026-46043}
• gfs2: Fix use-after-free in iomap inline data write path {CVE-2026-45984}
• gfs2: Add metapath_dibh helper {CVE-2026-45984}
• bonding: alb: fix UAF in rlb_arp_recv during bond up/down {CVE-2026-45970}
• gfs2: Fix slab-use-after-free in qd_put {CVE-2026-45861}
• RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send {CVE-2026-45856}
• dm: fix a buffer overflow in ioctl processing {CVE-2026-46294}
• wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task {CVE-2026-46180}
• netfilter: nf_log: validate MAC header was set before dumping it {CVE-2026-52942}
• xfrm: espintcp: do not reuse an in-progress partial send {CVE-2026-52935}
• sctp: purge outqueue on stale COOKIE-ECHO handling {CVE-2026-52924}
• ipc: limit next_id allocation to the valid ID range {CVE-2026-52923}
• netfilter: xt_policy: fix strict mode inbound policy matching {CVE-2026-52920}
• netfilter: nf_queue: hold bridge skb->dev while queued {CVE-2026-52912}
• ipvs: clear the svc scheduler ptr early on edit {CVE-2026-53270}
• netfilter: conntrack_irc: fix possible out-of-bounds read {CVE-2026-53268}
• net/sched: act_api: use RCU with deferred freeing for action lifecycle {CVE-2026-53264}
• Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() {CVE-2026-53256}
• Bluetooth: RFCOMM: validate skb length in MCC handlers {CVE-2026-53254}
• xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() {CVE-2026-53239}
• ipv6: sit: reload inner IPv6 header after GSO offloads {CVE-2026-53228}
• net: guard timestamp cmsgs to real error queue skbs {CVE-2026-53223}
• USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() {CVE-2026-53195}
• wifi: nl80211: reject oversized EMA RNR lists {CVE-2026-53182}
• netfilter: require Ethernet MAC header before using eth_hdr() {CVE-2026-53131}
• bpf: Fix same-register dst/src OOB read and pointer leak in sock_ops {CVE-2026-53078}
• ppp: require CAP_NET_ADMIN in target…

• net: bridge: fix vlan tunnel dst refcnt when egressing {CVE-2021-47222}
• net: bridge: fix vlan tunnel dst null pointer dereference {CVE-2021-47223}
• writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() {CVE-2026-64378}
• writeback, cgroup: increment isw_nr_in_flight before grabbing an inode {CVE-2026-64378}
• writeback, cgroup: add smp_mb() to cgroup_writeback_umount() {CVE-2026-64378}
• fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount {CVE-2026-64378}
• libceph: validate banner payload length {CVE-2026-90067}
• drm/virtio: release the GEM object on virtio_gpu_vram_create() errors {CVE-2026-98606}
• procfs: fix missing RCU protection when reading real_parent in do_task_stat() {CVE-2026-46259}
• NFSv4/flexfiles: reject zero filehandle version count {CVE-2026-53392}
• smb: client: cancel reconnect work in clean_demultiplex_info() {CVE-2026-98175}
• smb: client: reject userspace cifs.idmap descriptions {CVE-2026-97564}
• smb: client: fix UAF and buffer leak in cifs_check_trans2() for malformed secondary T2 {CVE-2026-89637}
• smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() {CVE-2026-89633}
• net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow {CVE-2026-98025}
• RDMA/siw: Fix endpoint/socket association handling {CVE-2026-74345}
• RDMA/irdma: Fix out-of-bounds write in irdma_copy_user_pgaddrs {CVE-2026-74390}
• nfsd: fix clock domain mismatch in clients_still_reclaiming() {CVE-2026-89685}
• vdpa_sim_blk: reject out-of-range sector starts {CVE-2026-97991}
• Drivers: hv: vmbus: use generic driver_override infrastructure {CVE-2026-80676}
• HID: wacom: Fix OOB write in wacom_hid_set_device_mode() {CVE-2026-63916}
• nvme-tcp: do not accept C2HData based on blk_rq_payload_bytes() alone {CVE-2026-89482}
• nvmet-tcp: fix page fragment cache leak in error path {CVE-2026-74386}
• bpf: mark a NULL call argument precise {CVE-2026-98019}
• bpf: Don't predict JMP32 pointer vs zero comparisons {CVE-2026-98041}
• ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get {CVE-2026-72262}
• ASoC: SOF: ipc3-topology: Move and correct size checks in sof_ipc3_control_load_bytes() {CVE-2026-72262}
• Bluetooth: L2CAP: fix chan mode for LE_CONN_REQ + EXT_FLOWCTL pchan {CVE-2026-98108}
• mm/page_reporting: use system_freezable_wq to fix UAF during suspend {CVE-2026-74481}
• netfilter: synproxy: refresh tcphdr after skb_ensure_writable {CVE-2026-64007}
• netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() {CVE-2026-74569}
• reboot: fix cad_pid use-after-free race {CVE-2026-97938}
• fs/resctrl: Fix UAF from worker threads when domains are removed {CVE-2026-93099}
• ext4: fix out-of-bounds read in ext4_read_inline_dir() {CVE-2026-89786}
• ext4: fix dirtyclusters double decrement on fs shutdown {CVE-2026-45920}
• openvswitch: Fix CT limit teardown use-after-free {CVE-2026-89488}
• sctp: fix NULL deref on untransmitted RECONF completion {CVE-2026-89477}
• netfilter: conntrack: remove sprintf usage {CVE-2026-53002}
• fuse: re-lock request before replacing page cache folio {CVE-2026-53388}
• fanotify: fix false positive on permission events {CVE-2026-46150}
• configfs_lookup(): don't leave ->s_dentry dangling on failure {CVE-2026-74359}
• sctp: add INIT verification after cookie unpacking {CVE-2026-72398}
• sctp: fix err_chunk memory leaks in INIT handling {CVE-2026-72413}
• sctp: validate embedded INIT chunk and address list lengths in cookie {CVE-2026-53224}
• sctp: stream: fully roll back denied add-stream state {CVE-2026-52929}
• sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing {CVE-2026-53246}
• sctp: diag: reject stale associations in dump_one path {CVE-2026-52917}
• sctp: Hold sock lock while iterating over address list {CVE-2026-52917}
• sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL {CVE-2026-46227}
• nfsd: gate nfs3…

• CVE-2022-49416
  • wifi: mac80211: fix use-after-free in chanctx code {CVE-2022-49416}
• CVE-2022-49685
  • iio: trigger: sysfs: fix use-after-free on remove {CVE-2022-49685}
• CVE-2021-47670
  • can: peak_usb: fix use after free bugs {CVE-2021-47670}
• CVE-2026-98706
  • wifi: mac80211: drain PS delivery work during station teardown {CVE-2026-98706}
• CVE-2026-98610
  • net/sched: sch_hfsc: bound the classify inner-filter walk with a drift budget {CVE-2026-98610}
• CVE-2026-98548
  • sctp: discard the rest of the packet on a stale-cookie error {CVE-2026-98548}
• CVE-2026-98614
  • sctp: avoid livelock while updating retransmit path {CVE-2026-98614}
• CVE-2026-98547
  • af_packet: fix integer overflow in prb_calc_retire_blk_tmo() {CVE-2026-98547}
• CVE-2026-98579
  • nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure {CVE-2026-98579}
• CVE-2026-98581
  • nfc: llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm() {CVE-2026-98581}
• CVE-2026-98577
  • nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() {CVE-2026-98577}
• CVE-2026-98482
  • nfc: llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc() {CVE-2026-98482}
• CVE-2026-98576
  • nfc: llcp: fix slab-out-of-bounds reads when logging service names {CVE-2026-98576}
• CVE-2026-98624
  • netfilter: nfnetlink_queue: hold nfnl mutex in event notifier {CVE-2026-98624}
  • netlink: use blocking notifier {CVE-2026-98624}
• CVE-2026-98794
  • ipvs: filter some flags received in the backup server {CVE-2026-98794}
• CVE-2026-98829
  • wifi: mac80211: drop oversized fragments to avoid extra_len overflow {CVE-2026-98829}
• CVE-2026-98708
  • wifi: mac80211: keep paired old chanctx alive {CVE-2026-98708}
• CVE-2026-98707
  • wifi: mac80211: shut down RX BA session timer on teardown {CVE-2026-98707}
• CVE-2026-98532
  • ipv6: do not let ipv6_find_hdr() return an offset past the packet end {CVE-2026-98532}
• CVE-2026-98541
  • fou: reject omitted FOU_ATTR_IPPROTO on FOU_ENCAP_DIRECT {CVE-2026-98541}
• CVE-2026-98461
  • Bluetooth: hci_sock: validate event length before filtering {CVE-2026-98461}
• CVE-2026-98621
  • net: gue: reject invalid REMCSUM offsets {CVE-2026-98621}
• CVE-2026-98526
  • llc: reserve device headroom for allocated frames {CVE-2026-98526}
• CVE-2026-98555
  • llc: fix skb UAF and leaks on llc_mac_hdr_init() failure {CVE-2026-98555}
• CVE-2026-98573
  • net: skbuff: fix pull-bound underflow in skb_checksum_setup_ipv6() {CVE-2026-98573}
• CVE-2026-98739
  • Bluetooth: RFCOMM: Fix initial port reference race {CVE-2026-98739}
• CVE-2026-98457
  • Bluetooth: L2CAP: validate frame length before control and FCS access {CVE-2026-98457}
• CVE-2026-98460
  • Bluetooth: hci_sock: reject out-of-range OCF values {CVE-2026-98460}
• CVE-2026-98856
  • kprobes: Skip disarmed probes when checking optkprobe overlap {CVE-2026-98856}
• CVE-2026-98636
  • squashfs: Add dictionary size range check to prevent shift-out-of-bounds {CVE-2026-98636}
• CVE-2026-98681
  • smb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races {CVE-2026-98681}
• CVE-2026-98771
  • usb: storage: sierra_ms: reject short SWoC info transfers {CVE-2026-98771}
• CVE-2026-98772
  • USB: serial: fix port tear down use-after-free {CVE-2026-98772}
• CVE-2026-98696
  • USB: serial: fix driver deregistration order {CVE-2026-98696}
• CVE-2026-98697
  • USB: serial: fix dynamic id driver deregistration race {CVE-2026-98697}
• CVE-2026-98769
  • usb: gadget: f_uac1_legacy: validate bRequest index in generic_{set,get}_cmd {CVE-2026-98769}
• CVE-2026-98764
  • usb: gadget: f_fs: Fix NULL pointer dereference in …

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-10263: arm64: cputype: Add C1-Premium definitions (bsc#1266290).
• CVE-2025-39894: netfilter: br_netfilter: do not check confirmed bit in br_nf_local_in() after confirm (bsc#1262430).
• CVE-2025-40341: futex: Don't leak robust_list pointer on exec race (bsc#1255029).
• CVE-2026-23248: perf: Make perf_pmu_unregister() useable (bsc#1259800).
• CVE-2026-23394: Revert: "af_unix: Remove lock dance in unix_peek_fds()." (bsc#1260565).
• CVE-2026-23451: bonding: prevent potential infinite loop in bond_header_parse() (bsc#1261604).
• CVE-2026-31414: netfilter: nf_conntrack_expect: use expect->helper (bsc#1262085).
• CVE-2026-31429: net: skb: fix cross-cache free of KFENCE-allocated skb head (bsc#1262392).
• CVE-2026-31438: netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators (bsc#1267824).
• CVE-2026-31450: ext4: publish jinode after initialization (bsc#1262618).
• CVE-2026-31452: ext4: convert inline data to extents when truncate exceeds inline size (bsc#1262620).
• CVE-2026-31466: mm/huge_memory: fix folio isn't locked in softleaf_to_folio() (bsc#1267825).
• CVE-2026-31469: virtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false (bsc#1267816).
• CVE-2026-31479: drm/xe: always keep track of remap prev/next (bsc#1262765).
• CVE-2026-31492: RDMA/irdma: Initialize free_qp completion before using it (bsc#1262748).
• CVE-2026-31495: netfilter: ctnetlink: use netlink policy range checks (bsc#1262798).
• CVE-2026-31499: Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() (bsc#1262674).
• CVE-2026-31502: team: fix header_ops type confusion with non-Ethernet ports (bsc#1263072).
• CVE-2026-31555: futex: Clear stale exiting pointer in futex_lock_pi() retry path (bsc#1263178).
• CVE-2026-31560: spi: spi-dw-dma: fix print error log when wait finish transaction (bsc#1263057).
• CVE-2026-31596: ocfs2: handle invalid dinode in ocfs2_group_extend (bsc#1263319).
• CVE-2026-31646: net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() (bsc#1263796).
• CVE-2026-31647: idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling (bsc#1263581).
• CVE-2026-31663: xfrm: hold device only for the asynchronous decryption (bsc#1263133).
• CVE-2026-31664: xfrm: clear trailing padding in build_polexpire() (bsc#1263578).
• CVE-2026-31665: netfilter: nft_ct: fix use-after-free in timeout object destroy (bsc#1263137).
• CVE-2026-31670: net: rfkill: prevent unlimited numbers of rfkill events from being created (bsc#1263573).
• CVE-2026-31673: af_unix: read UNIX_DIAG_VFS data under unix_state_lock (bsc#1263143).
• CVE-2026-31674: netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check() (bsc#1263568).
• CVE-2026-31680: net: ipv6: flowlabel: defer exclusive option free until RCU teardown (bsc#1263563).
• CVE-2026-31693: cifs: some missing initializations on replay (bsc#1267744).
• CVE-2026-31743: nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy (bsc#1264067).
• CVE-2026-31752: bridge: br_nd_send: validate ND option lengths (bsc#1264045).
• CVE-2026-31771: Bluetooth: hci_event: move wake reason storage into validated event handlers (bsc#1264145).
• CVE-2026-43010: bpf: Reject sleepable kprobe_multi programs at attach time (bsc#1264015).
• CVE-2026-43014,CVE-2026-43015: net: macb: fix clk handling on PCI glue driver removal (bsc#1264010 bsc#1264012).
• CVE-2026-43016: bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready() (bsc#1264007).
• CVE-2026-43022: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists (bsc#1264001).
• CVE-2026-43024: netfilter: nf_tables: reject immediate NF_QUEUE verdict (bsc#1263930).
• CVE-2026-43028: netfilter: x_tables: ensure names are nul-terminated (bsc#1263934).
• CVE-2026-43034: bnxt_en: set backing store type from query type (bsc#1263998).
• CVE-2026-43035: net:…

Root has patched CVE-2026-52923 in the linux package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2026-52923 in the linux package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-52923 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.

Root has patched CVE-2026-52923 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-40341: futex: Don't leak robust_list pointer on exec race (bsc#1255029).
• CVE-2025-71294: drm/amdgpu: fix NULL pointer issue buffer funcs (bsc#1264562).
• CVE-2026-23451: bonding: prevent potential infinite loop in bond_header_parse() (bsc#1261604).
• CVE-2026-31450: ext4: publish jinode after initialization (bsc#1262618).
• CVE-2026-31462: drm/amdgpu: prevent immediate PASID reuse case (bsc#1262655).
• CVE-2026-31466: mm/huge_memory: fix folio isn't locked in softleaf_to_folio() (bsc#1267825).
• CVE-2026-31502: team: fix header_ops type confusion with non-Ethernet ports (bsc#1263072).
• CVE-2026-31670: net: rfkill: prevent unlimited numbers of rfkill events from being created (bsc#1263573).
• CVE-2026-31677: crypto: af_alg - limit RX SG extraction by receive buffer budget (bsc#1263560).
• CVE-2026-43010: bpf: Reject sleepable kprobe_multi programs at attach time (bsc#1264015).
• CVE-2026-43022: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists (bsc#1264001).
• CVE-2026-43034: bnxt_en: set backing store type from query type (bsc#1263998).
• CVE-2026-43079: perf/x86/intel/uncore: Skip discovery table for offline dies (bsc#1264228).
• CVE-2026-43080: l2tp: Drop large packets with UDP encap (bsc#1264236).
• CVE-2026-43081: net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+ (bsc#1264241).
• CVE-2026-43085: netfilter: nfnetlink_log: initialize nfgenmsg in NLMSG_DONE terminator (bsc#1264230).
• CVE-2026-43086: ipvs: fix NULL deref in ip_vs_add_service error path (bsc#1264286).
• CVE-2026-43089: xfrm_user: fix info leak in build_mapping() (bsc#1264261).
• CVE-2026-43093: xsk: tighten UMEM headroom validation to account for tailroom and min frame (bsc#1264254).
• CVE-2026-43107: xfrm: account XFRMA_IF_ID in aevent size calculation (bsc#1264258).
• CVE-2026-43128: RDMA/umem: Fix double dma_buf_unpin in failure path (bsc#1264612).
• CVE-2026-43139: xfrm6: fix uninitialized saddr in xfrm6_get_saddr() (bsc#1264294).
• CVE-2026-43233: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (bsc#1264337).
• CVE-2026-43238: net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash() (bsc#1264320).
• CVE-2026-43303: mm/page_alloc: clear page->private in free_pages_prepare() (bsc#1264974).
• CVE-2026-43336: lib/crypto: chacha: Zeroize permuted_state before it leaves scope (bsc#1265113).
• CVE-2026-43420: ceph: fix i_nlink underrun during async unlink (bsc#1264814).
• CVE-2026-43456: bonding: fix type confusion in bond_setup_by_slave() (bsc#1264734).
• CVE-2026-43472: unshare: fix unshare_fs() handling (bsc#1264748).
• CVE-2026-43492: lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_sgl() (bsc#1265629).
• CVE-2026-43502: net/rds: handle zerocopy send cleanup before the message is queued (bsc#1266008).
• CVE-2026-45838: bpf: fix end-of-list detection in cgroup_storage_get_next_key() (bsc#1266396).
• CVE-2026-45848: apparmor: fix NULL sock in aa_sock_file_perm (bsc#1266734).
• CVE-2026-45891: net: hns3: fix double free issue for tx spare buffer (bsc#1266717).
• CVE-2026-45912: ext4: don't cache extent during splitting extent (bsc#1266899).
• CVE-2026-45948: ext4: fix memory leak in ext4_ext_shift_extents() (bsc#1266929).
• CVE-2026-45985: ext4: don't set EXT4_GET_BLOCKS_CONVERT when splitting before submitting I/O (bsc#1266700).
• CVE-2026-46028: crypto: algif_aead - snapshot IV for async AEAD requests (bsc#1267430).
• CVE-2026-46053: net: rds: fix MR cleanup on copy error (bsc#1267427).
• CVE-2026-46063: x86/shstk: Prevent deadlock during shstk sigreturn (bsc#1267228).
• CVE-2026-46065: fbdev: defio: Disconnect deferred I/O from the lifetime of struct (bsc#1267458).
• CVE-2026-46069: wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() (bsc#1267437).
• CVE-2026-46071: KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12 (bsc#1267591).…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-40341: futex: Don't leak robust_list pointer on exec race (bsc#1255029).
• CVE-2025-71294: drm/amdgpu: fix NULL pointer issue buffer funcs (bsc#1264562).
• CVE-2026-23451: bonding: prevent potential infinite loop in bond_header_parse() (bsc#1261604).
• CVE-2026-31450: ext4: publish jinode after initialization (bsc#1262618).
• CVE-2026-31462: drm/amdgpu: prevent immediate PASID reuse case (bsc#1262655).
• CVE-2026-31466: mm/huge_memory: fix folio isn't locked in softleaf_to_folio() (bsc#1267825).
• CVE-2026-31502: team: fix header_ops type confusion with non-Ethernet ports (bsc#1263072).
• CVE-2026-31670: net: rfkill: prevent unlimited numbers of rfkill events from being created (bsc#1263573).
• CVE-2026-31677: crypto: af_alg - limit RX SG extraction by receive buffer budget (bsc#1263560).
• CVE-2026-43010: bpf: Reject sleepable kprobe_multi programs at attach time (bsc#1264015).
• CVE-2026-43022: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists (bsc#1264001).
• CVE-2026-43034: bnxt_en: set backing store type from query type (bsc#1263998).
• CVE-2026-43079: perf/x86/intel/uncore: Skip discovery table for offline dies (bsc#1264228).
• CVE-2026-43080: l2tp: Drop large packets with UDP encap (bsc#1264236).
• CVE-2026-43081: net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+ (bsc#1264241).
• CVE-2026-43085: netfilter: nfnetlink_log: initialize nfgenmsg in NLMSG_DONE terminator (bsc#1264230).
• CVE-2026-43086: ipvs: fix NULL deref in ip_vs_add_service error path (bsc#1264286).
• CVE-2026-43089: xfrm_user: fix info leak in build_mapping() (bsc#1264261).
• CVE-2026-43093: xsk: tighten UMEM headroom validation to account for tailroom and min frame (bsc#1264254).
• CVE-2026-43107: xfrm: account XFRMA_IF_ID in aevent size calculation (bsc#1264258).
• CVE-2026-43128: RDMA/umem: Fix double dma_buf_unpin in failure path (bsc#1264612).
• CVE-2026-43139: xfrm6: fix uninitialized saddr in xfrm6_get_saddr() (bsc#1264294).
• CVE-2026-43233: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (bsc#1264337).
• CVE-2026-43238: net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash() (bsc#1264320).
• CVE-2026-43303: mm/page_alloc: clear page->private in free_pages_prepare() (bsc#1264974).
• CVE-2026-43336: lib/crypto: chacha: Zeroize permuted_state before it leaves scope (bsc#1265113).
• CVE-2026-43420: ceph: fix i_nlink underrun during async unlink (bsc#1264814).
• CVE-2026-43456: bonding: fix type confusion in bond_setup_by_slave() (bsc#1264734).
• CVE-2026-43472: unshare: fix unshare_fs() handling (bsc#1264748).
• CVE-2026-43492: lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_sgl() (bsc#1265629).
• CVE-2026-43502: net/rds: handle zerocopy send cleanup before the message is queued (bsc#1266008).
• CVE-2026-45838: bpf: fix end-of-list detection in cgroup_storage_get_next_key() (bsc#1266396).
• CVE-2026-45848: apparmor: fix NULL sock in aa_sock_file_perm (bsc#1266734).
• CVE-2026-45891: net: hns3: fix double free issue for tx spare buffer (bsc#1266717).
• CVE-2026-45912: ext4: don't cache extent during splitting extent (bsc#1266899).
• CVE-2026-45948: ext4: fix memory leak in ext4_ext_shift_extents() (bsc#1266929).
• CVE-2026-45985: ext4: don't set EXT4_GET_BLOCKS_CONVERT when splitting before submitting I/O (bsc#1266700).
• CVE-2026-46028: crypto: algif_aead - snapshot IV for async AEAD requests (bsc#1267430).
• CVE-2026-46053: net: rds: fix MR cleanup on copy error (bsc#1267427).
• CVE-2026-46063: x86/shstk: Prevent deadlock during shstk sigreturn (bsc#1267228).
• CVE-2026-46065: fbdev: defio: Disconnect deferred I/O from the lifetime of struct (bsc#1267458).
• CVE-2026-46069: wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() (bsc#1267437).
• CVE-2026-46071: KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12…