CVE-2026-23392

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flowtable after rcu grace period on error Call synchronize_rcu() after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this flowtable to packet path and nfnetlink_hook control plane. This error path is rare, it should only happen by reaching the maximum number hooks or by failing to set up to hardware offload, just call synchronize_rcu(). There is a check for already used device hooks by different flowtable that could result in EEXIST at this late stage. The hook parser can be updated to perform this check earlier to this error path really becomes rarely exercised. Uncovered by KASAN reported as use-after-free from nfnetlink_hook path when dumping hooks.

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

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

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

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

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.(CVE-2026-23231)

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

tls: Fix race condition in tls_sw_cancel_work_tx()

This issue was discovered during a code audit.

After cancel_delayed_work_sync() is called from tls_sk_proto_close(), tx_work_handler() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the tx_work_handler() worker may dereference a freed TLS object.

The following is a simple race scenario:

      cpu0                         cpu1

tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);

To prevent this race condition, cancel_delayed_work_sync() is replaced with disable_delayed_work_sync().(CVE-2026-23240)

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

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.(CVE-2026-23245)

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

net: gro: fix outer network offset

The udp GRO complete stage assumes that all the packets inserted the RX have the encapsulation flag zeroed. Such assumption is not true, as a few H/W NICs can set such flag when H/W offloading the checksum for an UDP encapsulated traffic, the tun driver can inject GSO packets with UDP encapsulation and the problematic layout can also be created via a veth based setup.

Due to the above, in the problematic scenarios, udp4_gro_complete() uses the wrong network offset (inner…

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

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

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, a security vulnerability exists in the IOMMU Shared Virtual Addressing (SVA) feature. On x86 architecture when CONFIG_X86 is set, IOMMU hardware caches kernel page table entries. Due to the lack of notification mechanism for kernel page table changes, when kernel page table pages are freed and reused, the IOMMU may retain stale entries, leading to Use-After-Free (UAF) and Write-After-Free (WAF) conditions. This can be exploited to cause arbitrary physical memory DMA access or privilege escalation.(CVE-2025-71089)

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

uacce: fix cdev handling in the cleanup path

When cdev_device_add fails, it internally releases the cdev memory, and if cdev_device_del is then executed, it will cause a hang error. To fix it, we check the return value of cdev_device_add() and clear uacce->cdev to avoid calling cdev_device_del in the uacce_remove.(CVE-2026-23096)

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

bonding: fix use-after-free due to enslave fail after slave array update

Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used for Tx immediately, we can use it after it has been freed by the enslave error cleanup path which frees the allocated slave memory. Slave update array is supposed to be called last when further enslave failures are not expected. Move it after xdp setup to avoid any problems.

It is very easy to reproduce the problem with a simple xdp_pass prog: ip l add bond1 type bond mode balance-xor ip l set bond1 up ip l set dev bond1 xdp object xdp_pass.o sec xdp_pass ip l add dumdum type dummy

Then run in parallel: while :; do ip l set dumdum master bond1 1>/dev/null 2>&1; done; mausezahn bond1 -a own -b rand -A rand -B 1.1.1.1 -c 0 -t tcp "dp=1-1023, flags=syn"

The crash happens almost immediately: [ 605.602850] Oops: general protection fault, probably for non-canonical address 0xe0e6fc2460000137: 0000 [#1] SMP KASAN NOPTI [ 605.602916] KASAN: maybe wild-memory-access in range [0x07380123000009b8-0x07380123000009bf] [ 605.602946] CPU: 0 UID: 0 PID: 2445 Comm: mausezahn Kdump: loaded Tainted: G B 6.19.0-rc6+ #21 PREEMPT(voluntary) [ 605.602979] Tainted: [B]=BAD_PAGE [ 605.602998] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 605.603032] RIP: 0010:netdev_core_pick_tx+0xcd/0x210 [ 605.603063] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3e 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 49 8d 7d 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 25 01 00 00 49 8b 45 30 4c 89 e2 48 89 ee 48 89 [ 605.603111] RSP: 0018:ffff88817b9af348 EFLAGS: 00010213 [ 605.603145] RAX: dffffc0000000000 RBX: ffff88817d28b420 RCX: 0000000000000000 [ 605.603172] RDX: 00e7002460000137 RSI: 0000000000000008 RDI: 07380123000009be [ 605.603199] RBP: ffff88817b541a00 R08: 0000000000000001 R09: fffffbfff3ed8c0c [ 605.603226] R10: ffffffff9f6c6067 R11: 0000000000000001 R12: 0000000000000000 [ 605.603253] R13: 073801230000098e R14: ffff88817d28b448 R15: ffff88817b541a84 [ 605.603286] FS: 00007f6570ef67c0(0000) GS:ffff888221dfa000(0000) knlGS:0000000000000000 [ …

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

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

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

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

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.(CVE-2026-23231)

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

tls: Fix race condition in tls_sw_cancel_work_tx()

This issue was discovered during a code audit.

After cancel_delayed_work_sync() is called from tls_sk_proto_close(), tx_work_handler() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the tx_work_handler() worker may dereference a freed TLS object.

The following is a simple race scenario:

      cpu0                         cpu1

tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);

To prevent this race condition, cancel_delayed_work_sync() is replaced with disable_delayed_work_sync().(CVE-2026-23240)

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

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.(CVE-2026-23245)

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

net: gro: fix outer network offset

The udp GRO complete stage assumes that all the packets inserted the RX have the encapsulation flag zeroed. Such assumption is not true, as a few H/W NICs can set such flag when H/W offloading the checksum for an UDP encapsulated traffic, the tun driver can inject GSO packets with UDP encapsulation and the problematic layout can also be created via a veth based setup.

Due to the above, in the problematic scenarios, udp4_gro_complete() uses the wrong network offset (inner…

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

Security Fix(es):

• kernel: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al (CVE-2025-38653)

• kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)

• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)

• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)

• kernel: iommu: disable SVA when CONFIG_X86 is set (CVE-2025-71089)

• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)

• kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)

• kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)

• kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)

• kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)

• kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)

• kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)

• kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)

• kernel: smb: client: validate the whole DACL before rewriting it in cifsacl (CVE-2026-31709)

• kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)

• kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)

• kernel: netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)

• kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)

• kernel: mm/page_alloc: clear page->private in free_pages_prepare() (CVE-2026-43303)

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: can: j1939: j1939_session_new(): fix skb reference counting (CVE-2024-56645)

• kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)

• kernel: mm: thp: deny THP for files on anonymous inodes (CVE-2026-23375)

• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)

• kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)

• kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)

• kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)

• kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)

• kernel: io_uring/rsrc: reject zero-length fixed buffer import (CVE-2026-43006)

• kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)

• kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)

• kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)

• kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)

• kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)

• kernel: netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)

• kernel: Linux kernel dpaa2-switch: Kernel memory corruption via out-of-bounds write (CVE-2026-43205)

• kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)

• kernel: mm/page_alloc: clear page->private in free_pages_prepare() (CVE-2026-43303)

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: geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)

• kernel: smc: Fix use-after-free in tcp_write_timer_handler() (CVE-2023-53781)

• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)

• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)

• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)

• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)

• kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)

• kernel: smb: client: fix OOB reads parsing symlink error response (CVE-2026-31613)

• kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)

• kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)

• kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)

• kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)

• kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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: geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)

• kernel: smc: Fix use-after-free in tcp_write_timer_handler() (CVE-2023-53781)

• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)

• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)

• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)

• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)

• kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)

• kernel: smb: client: fix OOB reads parsing symlink error response (CVE-2026-31613)

• kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)

• kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)

• kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)

• kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)

• kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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: geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)

• kernel: smc: Fix use-after-free in tcp_write_timer_handler() (CVE-2023-53781)

• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)

• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)

• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)

• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)

• kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)

• kernel: smb: client: fix OOB reads parsing symlink error response (CVE-2026-31613)

• kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)

• kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)

• kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)

• kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)

• kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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: netfilter: nf_tables: release flowtable after rcu grace period on error Call synchronize_rcu() after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this flowtable to packet path and nfnetlink_hook control plane. This error path is rare, it should only happen by reaching the maximum number hooks or by failing to set up to hardware offload, just call synchronize_rcu(). There is a check for already used device hooks by different flowtable that could result in EEXIST at this late stage. The hook parser can be updated to perform this check earlier to this error path really becomes rarely exercised. Uncovered by KASAN reported as use-after-free from nfnetlink_hook path when dumping hooks.

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

Security Fix(es):

• kernel: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al (CVE-2025-38653)
• kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)
• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)
• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
• kernel: iommu: disable SVA when CONFIG_X86 is set (CVE-2025-71089)
• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)
• kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)
• kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)
• kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)
• kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)
• kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)
• kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)
• kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)
• kernel: smb: client: validate the whole DACL before rewriting it in cifsacl (CVE-2026-31709)
• kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)
• kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)
• kernel: netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)
• kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)
• kernel: mm/page_alloc: clear page->private in free_pages_prepare() (CVE-2026-43303)

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: can: j1939: j1939_session_new(): fix skb reference counting (CVE-2024-56645)
• kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)
• kernel: mm: thp: deny THP for files on anonymous inodes (CVE-2026-23375)
• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)
• kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)
• kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)
• kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)
• kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)
• kernel: io_uring/rsrc: reject zero-length fixed buffer import (CVE-2026-43006)
• kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)
• kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)
• kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)
• kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)
• kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)
• kernel: netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)
• kernel: Linux kernel dpaa2-switch: Kernel memory corruption via out-of-bounds write (CVE-2026-43205)
• kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)
• kernel: mm/page_alloc: clear page->private in free_pages_prepare() (CVE-2026-43303)

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: geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)
• kernel: smc: Fix use-after-free in tcp_write_timer_handler() (CVE-2023-53781)
• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)
• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)
• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)
• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)
• kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)
• kernel: smb: client: fix OOB reads parsing symlink error response (CVE-2026-31613)
• kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)
• kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)
• kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)
• kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)
• kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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: geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)
• kernel: smc: Fix use-after-free in tcp_write_timer_handler() (CVE-2023-53781)
• kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)
• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)
• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)
• kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)
• kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)
• kernel: smb: client: fix OOB reads parsing symlink error response (CVE-2026-31613)
• kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)
• kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)
• kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)
• kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)
• kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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:

netfilter: nf_tables: release flowtable after rcu grace period on error

Call synchronize_rcu() after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this flowtable to packet path and nfnetlink_hook control plane.

This error path is rare, it should only happen by reaching the maximum number hooks or by failing to set up to hardware offload, just call synchronize_rcu().

There is a check for already used device hooks by different flowtable that could result in EEXIST at this late stage. The hook parser can be updated to perform this check earlier to this error path really becomes rarely exercised.

Uncovered by KASAN reported as use-after-free from nfnetlink_hook path when dumping hooks.

• libceph: prevent potential out-of-bounds reads in handle_auth_done() {CVE-2026-22984}
• drm/i915: Fix NULL ptr deref by checking new_crtc_state {CVE-2023-53833}
• netfilter: nf_tables: release flowtable after rcu grace period on error {CVE-2026-23392}
• wifi: brcmfmac: validate bsscfg indices in IF events {CVE-2026-43110}
• xfrm: hold dev ref until after transport_finish NF_HOOK {CVE-2026-31663}
• mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() {CVE-2026-31586}
• scsi: sg: Do not sleep in atomic context {CVE-2025-40259}
• Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp} {CVE-2023-53827}
• drm/i915/gem: add missing boundary check in vm_access {CVE-2023-28410}
• ASoC: SOF: debug: Fix potential buffer overflow by snprintf() {CVE-2022-50051}
• tipc: fix use-after-free Read in tipc_named_reinit {CVE-2022-49696}
• wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration {CVE-2022-49022}
• ethtool: do not perform operations on net devices being unregistered {CVE-2021-47517}
• cxgb4: avoid accessing registers when clearing filters {CVE-2021-47138}
• bpf: Fix ringbuf helper function compatibility {CVE-2021-34866}
• HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq {CVE-2026-43051}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold {CVE-2026-31408}
• net: usb: cdc_ncm: add ndpoffset to NDP16 nframes bounds check {CVE-2026-23448}
• nbd: defer config unlock in nbd_genl_connect {CVE-2025-68366}
• asix: fix uninit-value in asix_mdio_read() {CVE-2021-47101}
• kyber: fix out of bounds access when preempted {CVE-2021-46984}
• can: bcm: add locking for bcm_op runtime updates {CVE-2025-38004}
• tls: separate no-async decryption request handling from async {CVE-2024-58240}
• ftrace: Also allocate and copy hash for reading of filter files {CVE-2025-39689}
• Make filldir64 verify the directory entry filename is valid {CVE-2019-10220}
• scsi: qla2xxx: Fix bsg_done() causing double free {CVE-2025-71238}
• team: fix check for port enabled in team_queue_override_port_prio_changed() {CVE-2025-71091}
• bonding: limit BOND_MODE_8023AD to Ethernet devices {CVE-2026-23099}
• Bluetooth: btusb: revert use of devm_kzalloc in btusb {CVE-2025-71082}
• proc/vmcore: fix clearing user buffer by properly using clear_user() {CVE-2021-47566}
• nfsd: fix use-after-free due to delegation race {CVE-2021-47506}
• drm: bridge/panel: Cleanup connector on bridge detach {CVE-2021-47063}
• usb: class: cdc-wdm: fix reordering issue in read code path {CVE-2026-43427}
• nfsd: fix heap overflow in NFSv4.0 LOCK replay cache {CVE-2026-31402}
• ext4: convert inline data to extents when truncate exceeds inline size {CVE-2026-31452}
• wifi: mac80211: check tdls flag in ieee80211_tdls_oper {CVE-2026-43052}
• netfilter: nfnetlink_osf: avoid OOB read {CVE-2023-39189}
• crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id {CVE-2025-68724}
• ALSA: 6fire: fix use-after-free on disconnect {CVE-2026-31581}
• Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock {CVE-2026-31500}
• drm/amdgpu: Fix use-after-free race in VM acquire {CVE-2026-43370}
• net: use dst_dev_rcu() in sk_setup_caps() {CVE-2025-40170}
• wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() {CVE-2022-50258}
• x86/fpu: Invalidate FPU state after a failed XRSTOR from a user buffer {CVE-2021-47226}
• kvm: LAPIC: Restore guard to prevent illegal APIC register access {CVE-2021-47255}
• tunnels: fix kasan splat when generating ipv4 pmtu error {CVE-2023-53600}
• macvlan: fix error recovery in macvlan_common_newlink() {CVE-2026-23209}
• ALSA: aloop: Fix racy access at PCM trigger {CVE-2026-23191}
• RDMA/cxgb4: Do not dma memory off of the stack {CVE-2019-17075}
• netfilter: nf_conntrack_helper: pass helper to expect cleanup {CVE-2026-43027}
• KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221) {CVE-2019-7221}
• RDMA/umad: Reject negative data_len in…

• libceph: prevent potential out-of-bounds reads in handle_auth_done() {CVE-2026-22984}
• svcrdma: bound check rq_pages index in inline path {CVE-2025-71068}
• drm/i915: Fix NULL ptr deref by checking new_crtc_state {CVE-2023-53833}
• netfilter: nf_tables: release flowtable after rcu grace period on error {CVE-2026-23392}
• wifi: brcmfmac: validate bsscfg indices in IF events {CVE-2026-43110}
• xfrm: hold dev ref until after transport_finish NF_HOOK {CVE-2026-31663}
• mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() {CVE-2026-31586}
• scsi: sg: Do not sleep in atomic context {CVE-2025-40259}
• bpf, sockmap: Fix race between element replace and close() {CVE-2024-56664}
• Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp} {CVE-2023-53827}
• drm/i915/gem: add missing boundary check in vm_access {CVE-2023-28410}
• ASoC: SOF: debug: Fix potential buffer overflow by snprintf() {CVE-2022-50051}
• tipc: fix use-after-free Read in tipc_named_reinit {CVE-2022-49696}
• wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration {CVE-2022-49022}
• drm/i915/gem: Really move i915_gem_context.link under ref protection {CVE-2022-48662}
• drm/i915: Release i915_gem_context from a worker {CVE-2022-48662}
• KVM: x86/mmu: Don't advance iterator after restart due to yielding {CVE-2021-47094}
• HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq {CVE-2026-43051}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold {CVE-2026-31408}
• nbd: defer config unlock in nbd_genl_connect {CVE-2025-68366}
• netfilter: xt_tcpmss: check remaining length before reading optlen {CVE-2026-43190}
• media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405}
• net: sched: sfb: fix null pointer access issue when sfb_init() fails {CVE-2022-50356}
• skbuff: skb_segment, Call zero copy functions before using skbuff frags {CVE-2023-53354}
• nfsd: call op_release, even when op_func returns an error {CVE-2023-53241}
• icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev(). {CVE-2023-53343}
• RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device {CVE-2023-53393}
• scsi: target: iscsi: Fix a race condition between login_work and the login thread {CVE-2022-50350}
• Make filldir64 verify the directory entry filename is valid {CVE-2019-10220}
• usb: class: cdc-wdm: fix reordering issue in read code path {CVE-2026-43427}
• crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id {CVE-2025-68724}
• nfsd: fix heap overflow in NFSv4.0 LOCK replay cache {CVE-2026-31402}
• drm/amdgpu: Fix use-after-free race in VM acquire {CVE-2026-43370}
• net: use dst_dev_rcu() in sk_setup_caps() {CVE-2025-40170}
• team: fix check for port enabled in team_queue_override_port_prio_changed() {CVE-2025-71091}
• proc/vmcore: fix clearing user buffer by properly using clear_user() {CVE-2021-47566}
• cxgb4: avoid accessing registers when clearing filters {CVE-2021-47138}
• bpf: Fix ringbuf helper function compatibility {CVE-2021-34866}
• ext4: convert inline data to extents when truncate exceeds inline size {CVE-2026-31452}
• wifi: mac80211: check tdls flag in ieee80211_tdls_oper {CVE-2026-43052}
• atm: lec: fix use-after-free in sock_def_readable() {CVE-2026-43050}
• ext4: block range must be validated before use in ext4_mb_clear_bb() {CVE-2022-50021}
• bonding: limit BOND_MODE_8023AD to Ethernet devices {CVE-2026-23099}
• net/sched: cls_u32: use skb_header_pointer_careful() {CVE-2026-23204}
• scsi: qla2xxx: Fix bsg_done() causing double free {CVE-2025-71238}
• ice: Fix memory corruption in VF driver {CVE-2022-49722}
• net: usb: cdc_ncm: add ndpoffset to NDP16 nframes bounds check {CVE-2026-23448}
• netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() {CVE-2026-43450}
• tunnels: fix kasan splat when generating ipv4 pmtu error {CVE-2023-53600}
• Bluetooth: MGMT: validate LTK enc_size on load {CVE-2026-43020}
• netfilter: nf_conntrack_helper: pass helper to…

• ice: Fix PTP NULL pointer dereference during VSI rebuild {CVE-2026-23210}
• tracing: Add recursion protection in kernel stack trace recording {CVE-2026-23138}
• mm/ptdump: take the memory hotplug lock inside ptdump_walk_pgd() {CVE-2025-38681}
• cpuset: fix warning when disabling remote partition {CVE-2025-71142}
• virtio: break and reset virtio devices on device_shutdown() {CVE-2025-38064}
• netdevsim: fix a race issue related to the operation on bpf_bound_progs list {CVE-2026-23126}
• atm: clip: Fix potential null-ptr-deref in to_atmarpd(). {CVE-2025-38460}
• idpf: fix error handling in the init_task on load {CVE-2026-23017}
• rxrpc: Fix recvmsg() unconditional requeue {CVE-2026-23066}
• block: zero non-PI portion of auto integrity buffer {CVE-2026-23007}
• can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode {CVE-2025-38665}
• virtio_net: Fix napi_skb_cache_put warning {CVE-2024-43835}
• crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg {CVE-2025-39964}
• mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() {CVE-2026-23169}
• net: fix segmentation of forwarding fraglist GRO {CVE-2026-23154}
• gfs2: Validate i_depth for exhash directories {CVE-2025-38710}
• KVM: Don't clobber irqfd routing type when deassigning irqfd {CVE-2026-23198}
• ipvlan: Make the addrs_lock be per port {CVE-2026-23103}
• xfs: fix freemap adjustments when adding xattrs to leaf blocks {CVE-2026-43158}
• can: mcp251xfd: fix infinite loop when xmit fails {CVE-2024-41088}
• RDMA/core: Check for the presence of LS_NLA_TYPE_DGID correctly {CVE-2025-71096}
• RDMA/mlx5: Fix error flow upon firmware failure for RQ destruction {CVE-2025-38161}
• scsi: qla2xxx: Validate sp before freeing associated memory {CVE-2025-71236}
• net/sched: netem: account for backlog updates from child qdisc {CVE-2024-56770}
• drm/i915/gt: fix refcount underflow in intel_engine_park_heartbeat {CVE-2026-31656}
• iavf: fix off-by-one issues in iavf_config_rss_reg() {CVE-2025-71087}
• net/sched: ets: fix divide by zero in the offload path {CVE-2026-23379}
• can: j1939: implement NETDEV_UNREGISTER notification handler {CVE-2025-39925}
• ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() {CVE-2026-31531}
• Bluetooth: L2CAP: Fix null-ptr-deref on l2cap_sock_ready_cb {CVE-2026-31510}
• ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() {CVE-2026-23003}
• drm/i915/gt: Check set_default_submission() before deferencing {CVE-2026-31540}
• mac802154: check local interfaces before deleting sdata list {CVE-2024-57948}
• lib/buildid: use __kernel_read() for sleepable context {CVE-2026-23002}
• scsi: hisi_sas: Set debugfs_dir pointer to NULL after removing debugfs {CVE-2023-52808}
• net: fix memory leak in skb_segment_list for GRO packets {CVE-2026-22979}
• irqchip/imx-irqsteer: Handle runtime power management correctly {CVE-2024-42290}
• io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop {CVE-2026-23113}
• net/sched: ets: Remove drr class from the active list if it changes to strict {CVE-2025-68815}
• net: bonding: fix NULL deref in bond_debug_rlb_hash_show {CVE-2026-31546}
• ipvs: fix ipv4 null-ptr-deref in route error path {CVE-2025-68813}
• openvswitch: fix lockup on tx to unregistering netdev with carrier {CVE-2025-21681}
• net: USB: Fix wrong-direction WARNING in plusb.c {CVE-2023-52742}
• module: Fix kernel panic when a symbol st_shndx is out of bounds {CVE-2026-31521}
• udf: Fix preallocation discarding at indirect extent boundary {CVE-2022-48946}
• net/mlx5: qos: Restrict RTNL area to avoid a lock cycle {CVE-2025-39947}
• scsi: core: Wake up the error handler when final completions race against each other {CVE-2026-23110}
• nbd: don't allow reconnect after disconnect {CVE-2025-21731}
• nfsd: check that server is running in unlock_filesystem {CVE-2026-22989}
• af_key: validate families in pfkey_send_migrate() {CVE-2026-31515}
• netfilter: nfnetlink_queue: acquire rcu_read_lock() in instance_destroy_rcu() {CVE-2024-36286} -…

• ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr {CVE-2025-68183}
• futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock {CVE-2026-53166}
• rtmutex: Use waiter::task instead of current in remove_waiter() {CVE-2026-43499}
• net: bonding: fix use-after-free in bond_xmit_broadcast() {CVE-2026-31419}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold {CVE-2026-31408}
• mptcp: fix slab-use-after-free in __inet_lookup_established {CVE-2026-31669}
• svcrdma: bound check rq_pages index in inline path {CVE-2025-71068}
• ALSA: scarlett2: Fix buffer overflow in config retrieval {CVE-2026-23078}
• cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path {CVE-2026-43328}
• drm/amd/display: Do not skip unrelated mode changes in DSC validation {CVE-2026-31488}
• HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq {CVE-2026-43051}
• net: usb: cdc_ncm: add ndpoffset to NDP16 nframes bounds check {CVE-2026-23448}
• bpf, sockmap: Fix race between element replace and close() {CVE-2024-56664}
• mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() {CVE-2026-31586}
• crypto: pcrypt - Fix handling of MAY_BACKLOG requests {CVE-2026-43493}
• atm: lec: fix use-after-free in sock_def_readable() {CVE-2026-43050}
• driver core: enforce device_lock for driver_match_device() {CVE-2026-31688}
• driver core: platform: use generic driver_override infrastructure {CVE-2026-31527}
• nfsd: fix heap overflow in NFSv4.0 LOCK replay cache {CVE-2026-31402}
• ext4: convert inline data to extents when truncate exceeds inline size {CVE-2026-31452}
• usb: class: cdc-wdm: fix reordering issue in read code path {CVE-2026-43427}
• xen/privcmd: fix double free via VMA splitting {CVE-2026-31787}
• netfilter: nf_tables: release flowtable after rcu grace period on error {CVE-2026-23392}
• wifi: mac80211: check tdls flag in ieee80211_tdls_oper {CVE-2026-43052}
• netfilter: conntrack: switch to siphash {CVE-2021-3773}
• gpiolib: cdev: fix NULL-pointer dereferences {CVE-2022-50453}
• tracing: Free buffers when a used dynamic event is removed {CVE-2022-49006}
• dlm: validate length in dlm_search_rsb_tree {CVE-2026-43125}
• Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock {CVE-2026-31500}
• tpm: fix reference counting for struct tpm_chip {CVE-2022-2977}
• tracing: Fix wild-memory-access in register_synth_event() {CVE-2022-49799}
• nfnetlink_osf: validate individual option lengths in fingerprints {CVE-2026-23397}
• ext4: block range must be validated before use in ext4_mb_clear_bb() {CVE-2022-50021}
• netfilter: flowtable: strictly check for maximum number of actions {CVE-2026-43329}
• crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• xen: fix buffer overflow in buildid_show() {CVE-2026-31786}
• NTB: fix possible name leak in ntb_register_device() {CVE-2023-52652}
• ALSA: ctxfi: Fix potential OOB access in audio mixer handling {CVE-2026-23076}
• erspan: do not use skb_mac_header() in ndo_start_xmit() {CVE-2023-53053}
• net: af_key: zero aligned sockaddr tail in PF_KEY exports {CVE-2026-43088}
• ata: libata-transport: fix double ata_host_put() in ata_tport_add() {CVE-2022-49826}

• wifi: ath11k: update channel list in reg notifier instead reg worker {CVE-2025-23133}
• wifi: cfg80211: call reg_notifier for self managed wiphy from driver hint {CVE-2025-23133}
• KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception {CVE-2025-37957}
• KVM: x86: forcibly leave nested mode on vCPU reset {CVE-2022-3344}
• RDMA/umem: Fix truncation for block sizes >= 4G {CVE-2026-53133}
• crypto: arm64/poly1305 - fix a read out-of-bound {CVE-2022-50231}
• tls: handle data disappearing from under the TLS ULP {CVE-2025-38616}
• Bluetooth: btmtk: validate WMT event SKB length before struct access {CVE-2026-46140}
• Bluetooth: L2CAP: complete CVE-2026-23395 hardening (chan_lock + ident clear + memset ordering)
• wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit {CVE-2026-31579}
• net: add exit_batch_rtnl() method
• rxrpc: Fix data-race warning and potential load/store tearing {CVE-2026-23118}
• virt/coco/sev-guest: Double-buffer messages {CVE-2023-53769}
• ASoC: SOF: avoid a NULL dereference with unsupported widgets {CVE-2023-54233}
• bnxt_en: Fix memory corruption when FW resources change during ifdown {CVE-2025-39810}
• scsi: qla2xxx: Free sp in error path to fix system crash {CVE-2025-71232}
• sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting {CVE-2026-23371}
• net: rfkill: prevent unlimited numbers of rfkill events from being created {CVE-2026-31670}
• intel_th: fix device leak on output open() {CVE-2026-23091}
• batman-adv: reject oversized global TT response buffers {CVE-2026-31659}
• rxrpc: Fix call removal to use RCU safe deletion {CVE-2026-31642}
• i2c: s3c24xx: check the size of the SMBUS message before using it {CVE-2026-31627}
• Bluetooth: L2CAP: Fix ERTM re-init and zero pdu_len infinite loop {CVE-2026-31498}
• mtd: rawnand: serialize lock/unlock against other NAND operations {CVE-2026-23434}
• x86/efi: defer freeing of boot services memory {CVE-2026-23352}
• KVM: Don't clobber irqfd routing type when deassigning irqfd {CVE-2026-23198}
• nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec {CVE-2026-23112}
• usb: typec: ucsi: Handle incorrect num_connectors capability {CVE-2025-71108}
• KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer {CVE-2025-71104}
• drm/ttm: Avoid NULL pointer deref for evicted BOs {CVE-2025-71083}
• amba: bus: fix refcount leak {CVE-2023-54230}
• exfat: use kvmalloc_array/kvfree instead of kmalloc_array/kfree {CVE-2023-54194}
• octeontx2-af: Add validation for lmac type {CVE-2023-54129}
• rcu: dump vmalloc memory info safely {CVE-2023-54113}
• wifi: rtw88: use work to update rate to avoid RCU warning {CVE-2023-54071}
• bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps {CVE-2023-54033}
• ASoC: soc-compress: Reposition and add pcm_mutex {CVE-2023-53866}
• netlink: do not hard code device address lenth in fdb dumps {CVE-2023-53863}
• md/raid5-cache: fix a deadlock in r5l_exit_log() {CVE-2023-53848}
• tpm: tpm_tis: Add the missed acpi_put_table() to fix memory leak {CVE-2022-50824}
• net: stmmac: fix possible memory leak in stmmac_dvr_probe() {CVE-2022-50663}
• bpf: Fix reference state management for synchronous callbacks {CVE-2022-50650}
• blk-mq: fix tags leak when shrink nr_hw_queues {CVE-2023-54227}
• usbnet: Run unregister_netdev() before unbind() again {CVE-2022-49501}
• scsi: core: Wake up the error handler when final completions race against each other {CVE-2026-23110}
• scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler
• perf/core: Prevent VMA split of buffer mappings {CVE-2025-38563}
• Bluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQ {CVE-2026-23395}
• Bluetooth: L2CAP: Fix responding with wrong PDU type
• netfilter: nf_tables: release flowtable after rcu grace period on error {CVE-2026-23392}

• CVE-2026-72463
  • xfrm: Fix dev use-after-free in xfrm async resumption {CVE-2026-72463}
• CVE-2026-64600
  • xfs: resample the data fork mapping after cycling ILOCK {CVE-2026-64600}
• CVE-2026-46175
  • f2fs: fix fsck inconsistency caused by FGGC of node block {CVE-2026-46175}
• CVE-2025-68254
  • staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing {CVE-2025-68254}
• CVE-2025-68255
  • staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing {CVE-2025-68255}
• CVE-2026-64268
  • RDMA/siw: bound Read Response placement to the RREAD length {CVE-2026-64268}
• CVE-2025-68286
  • drm/amd/display: Check NULL before accessing {CVE-2025-68286}
• CVE-2026-53024
  • greybus: raw: fix use-after-free if write is called after disconnect {CVE-2026-53024}
• CVE-2026-53025
  • greybus: raw: fix use-after-free on cdev close {CVE-2026-53025}
• CVE-2026-52934
  • batman-adv: tvlv: reject oversized TVLV packets {CVE-2026-52934}
• CVE-2025-68303
  • platform/x86: intel: punit_ipc: fix memory corruption {CVE-2025-68303}
• CVE-2026-64280
  • fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() {CVE-2026-64280}
• CVE-2026-64188
  • net: qualcomm: rmnet: fix endpoint use-after-free in rmnet_dellink() {CVE-2026-64188}
• CVE-2026-64109
  • af_unix: Fix UAF read of tail->len in unix_stream_data_wait() {CVE-2026-64109}
• CVE-2026-64274
  • Input: goodix - clamp the device-reported contact count {CVE-2026-64274}
• CVE-2026-64270
  • Input: mms114 - reject an oversized device packet size {CVE-2026-64270}
• CVE-2026-64093
  • batman-adv: tp_meter: directly shut down timer on cleanup {CVE-2026-64093}
• CVE-2026-64091
  • batman-adv: tt: fix TOCTOU race for reported vlans {CVE-2026-64091}
• CVE-2026-53329
  • drm/amd/display: Use krealloc_array() in dal_vector_reserve() {CVE-2026-53329}
• CVE-2026-64298
  • NFSv4: include MAY_WRITE in open permission mask for O_TRUNC {CVE-2026-64298}
• CVE-2026-64276
  • Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• CVE-2026-64273
  • Input: iforce - bound the device-reported force-feedback effect index {CVE-2026-64273}
• CVE-2026-64271
  • Input: touchwin - reset the packet index on every complete packet {CVE-2026-64271}
• CVE-2026-64266
  • fuse: re-lock request before returning from fuse_ref_folio() {CVE-2026-64266}
• CVE-2026-64191
  • i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• CVE-2026-64189
  • netfilter: ipset: fix race between dump and ip_set_list resize {CVE-2026-64189}
• CVE-2026-31786
  • Buffer overflow in drivers/xen/sys-hypervisor.c {CVE-2026-31786}
• CVE-2025-68799
  • caif: fix integer underflow in cffrml_receive() {CVE-2025-68799}
• CVE-2025-68302
  • net: sxgbe: fix potential NULL dereference in sxgbe_rx() {CVE-2025-68302}
• CVE-2025-40243
  • hfs: fix KMSAN uninit-value issue in hfs_find_set_zero_bits() {CVE-2025-40243}
• CVE-2025-40233
  • ocfs2: clear extent cache after moving/defragmenting extents {CVE-2025-40233}
• CVE-2026-23269
  • apparmor: validate DFA start states are in bounds in unpack_pdb {CVE-2026-23269}
• CVE-2026-43249
  • 9p/xen: protect xen_9pfs_front_free against concurrent calls {CVE-2026-43249}
• CVE-2026-31657
  • batman-adv: hold claim backbone gateways by reference {CVE-2026-31657}
• CVE-2026-31598
  • ocfs2: fix possible deadlock between unlink and dio_end_io_write {CVE-2026-31598}
• CVE-2026-31768
  • iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() {CVE-2026-31768}
• CVE-2026-23216
  • scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() {CVE-2026-23216} *…

In the Linux kernel, the following vulnerability has been resolved: fs: dlm: fix use after free in midcomms commit While working on processing dlm message in softirq context I experienced the following KASAN use-after-free warning: .

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() This patch fixes a NULL pointer dereference bug in brcmfmac that occurs when a high 'sd_sgentry_align' value applies (e.g. 512) and a lot of queued SKBs are sent from the pkt queue.

In the Linux kernel, the following vulnerability has been resolved: padata: fix UAF in padata_reorder A bug was found when run ltp test: BUG: KASAN: slab-use-after-free in padata_find_next+0x29/0x1a0 Read of size 4 at addr ffff88bbfe003524 by task kworker/u113:2/3039206 CPU: 0 PID: 3039206 Comm: kworker/u113:2 Kdump: loaded Not tainted 6.6.0+ Workqueue: pdecrypt_parallel padata_parallel_worker Call Trace: <TASK> dump_stack_lvl+0x32/0x50 print_address_description.constprop.0+0x6b/0x3d0 print_report+0xdd/0x2c0 kasan_report+0xa5/0xd0 padata_find_next+0x29/0x1a0 padata_reorder+0x131/0x220 padata_parallel_worker+0x3d/0xc0 process_one_work+0x2ec/0x5a0 If 'mdelay(10)' is added before calling 'padata_find_next' in the 'padata_reorder' function, this issue could be reproduced easily with ltp test (pcrypt_aead01).

In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in geneve_find_dev().

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix geneve_opt type confusion addition When handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the parsing logic should place every geneve_opt structure one by one compactly.

In the Linux kernel, the following vulnerability has been resolved: ext4: ignore xattrs past end Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in __smb2_lease_break_noti() Move tcp_transport free to ksmbd_conn_free.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL.

In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.)(CVE-2025-37823).

In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence .

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix mode1 reset crash issue If HW scheduler hangs and mode1 reset is used to recover GPU, KFD signal user space to abort the processes.

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Use local fence in error path of xe_migrate_clear The intent of the error path in xe_migrate_clear is to wait on locally generated fence and then return.

In the Linux kernel, the following vulnerability has been resolved: net_sched: qfq: Fix double list add in class with netem as child qdisc As described in Gerrard's report .

In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: Fix double list add in class with netem as child qdisc As described in Gerrard's report .

In the Linux kernel, the following vulnerability has been resolved: vxlan: vnifilter: Fix unlocked deletion of default FDB entry When a VNI is deleted…

Upstream kernel version 6.6.130 fixes bugs and vulnerabilities. The kmod-virtualbox & kmod-xtables-addons packages have been updated to work with this new kernel.

Vanilla upstream kernel version 6.6.130 fixes bugs and vulnerabilities. For information about the vulnerabilities see the links.

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

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

Root has patched CVE-2026-23392 in the linux package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2026-23392 in the linux package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-23392 in the linux package for Root:Debian:13. Multiple fixed versions available.

Root has patched CVE-2026-23392 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.

Root has patched CVE-2026-23392 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.

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

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

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

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

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

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

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

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

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-2023-20585: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2025-71183: btrfs: always detect conflicting inodes when logging inode refs (bsc#1257631).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23239: espintcp: Fix race condition in espintcp_close() (bsc#1259485).
• CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx() (bsc#1259484).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: move dev_xmit_recursion() helpers to net/core/dev.h (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: mm/ioremap: define generic_ioremap_prot() and generic_iounmap() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23393: bridge: cfm: Fix race condition in peer_mep deletion (bsc#1260522).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23461: Bluetooth: L2CAP: Fix use-after-free in l2cap_unregister_user (bsc#1261707).
• CVE-2026-23462: Bluetooth: HIDP: Fix possible UAF (bsc#1261710).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on wakeup race (bsc#1261694).
• CVE-2026-31400: sunrpc: fix cache_request leak in cache_release (bsc#1261645).
• CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261638).
• CVE-2026-31403: NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd (bsc#1261796).
• CVE-2026-31404: xfs: avoid dereferencing log items after push callbacks (bsc#1261628).
• CVE-2026-31407:…

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-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2025-71183: btrfs: always detect conflicting inodes when logging inode refs (bsc#1257631).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23239: espintcp: Fix race condition in espintcp_close() (bsc#1259485).
• CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx() (bsc#1259484).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: move dev_xmit_recursion() helpers to net/core/dev.h (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: mm/ioremap: define generic_ioremap_prot() and generic_iounmap() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23393: bridge: cfm: Fix race condition in peer_mep deletion (bsc#1260522).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23461: Bluetooth: L2CAP: Fix use-after-free in l2cap_unregister_user (bsc#1261707).
• CVE-2026-23462: Bluetooth: HIDP: Fix possible UAF (bsc#1261710).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on wakeup race (bsc#1261694).
• CVE-2026-31400: sunrpc: fix cache_request leak in cache_release (bsc#1261645).
• CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261638).
• CVE-2026-31403: NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd (bsc#1261796).
• CVE-2026-31404: xfs: avoid dereferencing log items after push callbacks (bsc#1261628).
• CVE-2026-31407:…