CVE-2026-23254

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…

Root has patched CVE-2026-23254 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.

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 instead of outer) to compute the outer UDP header pseudo checksum, leading to csum validation errors later on in packet processing. Address the issue always clearing the encapsulation flag at GRO completion time. Such flag will be set again as needed for encapsulated packets by udp_gro_complete().

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 instead of outer) to compute the outer UDP header pseudo checksum, leading to csum validation errors later on in packet processing.

Address the issue always clearing the encapsulation flag at GRO completion time. Such flag will be set again as needed for encapsulated packets by udp_gro_complete().

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-2026-23254: net: gro: fix outer network offset (bsc#1259884).
• CVE-2026-23303: smb: client: Don't log plaintext credentials in cifs_set_cifscreds (bsc#1260502).
• CVE-2026-23327: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed() (bsc#1260548).
• CVE-2026-23438: net: mvpp2: guard flow control update with global_tx_fc in buffer switching (bsc#1261619).
• CVE-2026-31396: net: macb: fix use-after-free access to PTP clock (bsc#1261791).
• CVE-2026-31401: HID: bpf: prevent buffer overflow in hid_hw_request (bsc#1261603).
• CVE-2026-31446: ext4: fix use-after-free in update_super_work when racing with umount (bsc#1262619).
• CVE-2026-31448: ext4: avoid infinite loops caused by residual data (bsc#1262622).
• CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks (bsc#1262624).
• CVE-2026-31455: xfs: stop reclaim before pushing AIL during unmount (bsc#1262615).
• CVE-2026-31518: esp: fix skb leak with espintcp and async crypto (bsc#1262606).
• CVE-2026-31546: net: bonding: fix NULL deref in bond_debug_rlb_hash_show (bsc#1263006).
• CVE-2026-31556: xfs: scrub: unlock dquot before early return in quota scrub (bsc#1263062).
• CVE-2026-31562: drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register (bsc#1263058).
• CVE-2026-31584: media: mediatek: vcodec: fix use-after-free in encoder release path (bsc#1263180).
• CVE-2026-31645: net: lan966x: fix page pool leak in error paths (bsc#1263794).
• CVE-2026-31648: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() (bsc#1263579).
• CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled (bsc#1263724).
• CVE-2026-31671: xfrm_user: fix info leak in build_report() (bsc#1263115).
• CVE-2026-31683: batman-adv: avoid OGM aggregation when skb tailroom is insufficient (bsc#1263594).
• CVE-2026-31703: writeback: Fix use after free in inode_switch_wbs_work_fn() (bsc#1263883).
• CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs() (bsc#1264040).
• CVE-2026-43026: netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent (bsc#1263932).
• CVE-2026-43030: bpf: Fix regsafe() for pointers to packet (bsc#1264000).
• CVE-2026-43040: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak (bsc#1264091).
• CVE-2026-43063: xfs: don't irele after failing to iget in xfs_attri_recover_work (bsc#1264196).
• CVE-2026-43065: ext4: always drain queued discard work in ext4_mb_release() (bsc#1264243).
• CVE-2026-43066: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (bsc#1264245).
• CVE-2026-43068: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() (bsc#1264255).
• CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1264484).
• CVE-2026-43150: perf/arm-cmn: Reject unsupported hardware configurations (bsc#1264415).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated (bsc#1264609).
• CVE-2026-43332: thermal: core: Fix thermal zone device registration error path (bsc#1265114).
• CVE-2026-43393: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() (bsc#1264723).
• CVE-2026-43394: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit() (bsc#1265081).
• CVE-2026-43411: tipc: fix divide-by-zero in tipc_sk_filter_connect() (bsc#1264672).
• CVE-2026-43455: net: mctp: Ensure keys maintain only one ref to corresponding dev (bsc#1264765).
• CVE-2026-45842: slip: reject VJ receive packets on instances with no rstate array (bsc#1266400).
• CVE-2026-45846: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() (bsc#1266394).
• CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init…

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

The following security issues were fixed:

• CVE-2026-23254: net: gro: fix outer network offset (bsc#1259884).
• CVE-2026-23303: smb: client: Don't log plaintext credentials in cifs_set_cifscreds (bsc#1260502).
• CVE-2026-23327: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed() (bsc#1260548).
• CVE-2026-23438: net: mvpp2: guard flow control update with global_tx_fc in buffer switching (bsc#1261619).
• CVE-2026-31396: net: macb: fix use-after-free access to PTP clock (bsc#1261791).
• CVE-2026-31401: HID: bpf: prevent buffer overflow in hid_hw_request (bsc#1261603).
• CVE-2026-31446: ext4: fix use-after-free in update_super_work when racing with umount (bsc#1262619).
• CVE-2026-31448: ext4: avoid infinite loops caused by residual data (bsc#1262622).
• CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks (bsc#1262624).
• CVE-2026-31455: xfs: stop reclaim before pushing AIL during unmount (bsc#1262615).
• CVE-2026-31518: esp: fix skb leak with espintcp and async crypto (bsc#1262606).
• CVE-2026-31546: net: bonding: fix NULL deref in bond_debug_rlb_hash_show (bsc#1263006).
• CVE-2026-31556: xfs: scrub: unlock dquot before early return in quota scrub (bsc#1263062).
• CVE-2026-31562: drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register (bsc#1263058).
• CVE-2026-31584: media: mediatek: vcodec: fix use-after-free in encoder release path (bsc#1263180).
• CVE-2026-31645: net: lan966x: fix page pool leak in error paths (bsc#1263794).
• CVE-2026-31648: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() (bsc#1263579).
• CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled (bsc#1263724).
• CVE-2026-31671: xfrm_user: fix info leak in build_report() (bsc#1263115).
• CVE-2026-31683: batman-adv: avoid OGM aggregation when skb tailroom is insufficient (bsc#1263594).
• CVE-2026-31703: writeback: Fix use after free in inode_switch_wbs_work_fn() (bsc#1263883).
• CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs() (bsc#1264040).
• CVE-2026-43026: netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent (bsc#1263932).
• CVE-2026-43030: bpf: Fix regsafe() for pointers to packet (bsc#1264000).
• CVE-2026-43040: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak (bsc#1264091).
• CVE-2026-43063: xfs: don't irele after failing to iget in xfs_attri_recover_work (bsc#1264196).
• CVE-2026-43065: ext4: always drain queued discard work in ext4_mb_release() (bsc#1264243).
• CVE-2026-43066: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (bsc#1264245).
• CVE-2026-43068: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() (bsc#1264255).
• CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1264484).
• CVE-2026-43150: perf/arm-cmn: Reject unsupported hardware configurations (bsc#1264415).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated (bsc#1264609).
• CVE-2026-43332: thermal: core: Fix thermal zone device registration error path (bsc#1265114).
• CVE-2026-43393: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() (bsc#1264723).
• CVE-2026-43394: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit() (bsc#1265081).
• CVE-2026-43411: tipc: fix divide-by-zero in tipc_sk_filter_connect() (bsc#1264672).
• CVE-2026-43455: net: mctp: Ensure keys maintain only one ref to corresponding dev (bsc#1264765).
• CVE-2026-45842: slip: reject VJ receive packets on instances with no rstate array (bsc#1266400).
• CVE-2026-45846: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() (bsc#1266394).
• CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init…

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

The following security issues were fixed:

• CVE-2026-23254: net: gro: fix outer network offset (bsc#1259884).
• CVE-2026-23303: smb: client: Don't log plaintext credentials in cifs_set_cifscreds (bsc#1260502).
• CVE-2026-23327: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed() (bsc#1260548).
• CVE-2026-23438: net: mvpp2: guard flow control update with global_tx_fc in buffer switching (bsc#1261619).
• CVE-2026-31396: net: macb: fix use-after-free access to PTP clock (bsc#1261791).
• CVE-2026-31401: HID: bpf: prevent buffer overflow in hid_hw_request (bsc#1261603).
• CVE-2026-31446: ext4: fix use-after-free in update_super_work when racing with umount (bsc#1262619).
• CVE-2026-31448: ext4: avoid infinite loops caused by residual data (bsc#1262622).
• CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks (bsc#1262624).
• CVE-2026-31455: xfs: stop reclaim before pushing AIL during unmount (bsc#1262615).
• CVE-2026-31518: esp: fix skb leak with espintcp and async crypto (bsc#1262606).
• CVE-2026-31546: net: bonding: fix NULL deref in bond_debug_rlb_hash_show (bsc#1263006).
• CVE-2026-31556: xfs: scrub: unlock dquot before early return in quota scrub (bsc#1263062).
• CVE-2026-31562: drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register (bsc#1263058).
• CVE-2026-31584: media: mediatek: vcodec: fix use-after-free in encoder release path (bsc#1263180).
• CVE-2026-31645: net: lan966x: fix page pool leak in error paths (bsc#1263794).
• CVE-2026-31648: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() (bsc#1263579).
• CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled (bsc#1263724).
• CVE-2026-31671: xfrm_user: fix info leak in build_report() (bsc#1263115).
• CVE-2026-31683: batman-adv: avoid OGM aggregation when skb tailroom is insufficient (bsc#1263594).
• CVE-2026-31703: writeback: Fix use after free in inode_switch_wbs_work_fn() (bsc#1263883).
• CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs() (bsc#1264040).
• CVE-2026-43026: netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent (bsc#1263932).
• CVE-2026-43030: bpf: Fix regsafe() for pointers to packet (bsc#1264000).
• CVE-2026-43040: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak (bsc#1264091).
• CVE-2026-43063: xfs: don't irele after failing to iget in xfs_attri_recover_work (bsc#1264196).
• CVE-2026-43065: ext4: always drain queued discard work in ext4_mb_release() (bsc#1264243).
• CVE-2026-43066: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (bsc#1264245).
• CVE-2026-43068: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() (bsc#1264255).
• CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1264484).
• CVE-2026-43150: perf/arm-cmn: Reject unsupported hardware configurations (bsc#1264415).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated (bsc#1264609).
• CVE-2026-43332: thermal: core: Fix thermal zone device registration error path (bsc#1265114).
• CVE-2026-43393: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() (bsc#1264723).
• CVE-2026-43394: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit() (bsc#1265081).
• CVE-2026-43411: tipc: fix divide-by-zero in tipc_sk_filter_connect() (bsc#1264672).
• CVE-2026-43455: net: mctp: Ensure keys maintain only one ref to corresponding dev (bsc#1264765).
• CVE-2026-45842: slip: reject VJ receive packets on instances with no rstate array (bsc#1266400).
• CVE-2026-45846: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() (bsc#1266394).
• CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init…

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

The following security issues were fixed:

• CVE-2026-23254: net: gro: fix outer network offset (bsc#1259884).
• CVE-2026-23303: smb: client: Don't log plaintext credentials in cifs_set_cifscreds (bsc#1260502).
• CVE-2026-23327: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed() (bsc#1260548).
• CVE-2026-23438: net: mvpp2: guard flow control update with global_tx_fc in buffer switching (bsc#1261619).
• CVE-2026-31396: net: macb: fix use-after-free access to PTP clock (bsc#1261791).
• CVE-2026-31401: HID: bpf: prevent buffer overflow in hid_hw_request (bsc#1261603).
• CVE-2026-31446: ext4: fix use-after-free in update_super_work when racing with umount (bsc#1262619).
• CVE-2026-31448: ext4: avoid infinite loops caused by residual data (bsc#1262622).
• CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks (bsc#1262624).
• CVE-2026-31455: xfs: stop reclaim before pushing AIL during unmount (bsc#1262615).
• CVE-2026-31518: esp: fix skb leak with espintcp and async crypto (bsc#1262606).
• CVE-2026-31546: net: bonding: fix NULL deref in bond_debug_rlb_hash_show (bsc#1263006).
• CVE-2026-31556: xfs: scrub: unlock dquot before early return in quota scrub (bsc#1263062).
• CVE-2026-31562: drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register (bsc#1263058).
• CVE-2026-31584: media: mediatek: vcodec: fix use-after-free in encoder release path (bsc#1263180).
• CVE-2026-31645: net: lan966x: fix page pool leak in error paths (bsc#1263794).
• CVE-2026-31648: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() (bsc#1263579).
• CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled (bsc#1263724).
• CVE-2026-31671: xfrm_user: fix info leak in build_report() (bsc#1263115).
• CVE-2026-31683: batman-adv: avoid OGM aggregation when skb tailroom is insufficient (bsc#1263594).
• CVE-2026-31703: writeback: Fix use after free in inode_switch_wbs_work_fn() (bsc#1263883).
• CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs() (bsc#1264040).
• CVE-2026-43026: netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent (bsc#1263932).
• CVE-2026-43030: bpf: Fix regsafe() for pointers to packet (bsc#1264000).
• CVE-2026-43040: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak (bsc#1264091).
• CVE-2026-43063: xfs: don't irele after failing to iget in xfs_attri_recover_work (bsc#1264196).
• CVE-2026-43065: ext4: always drain queued discard work in ext4_mb_release() (bsc#1264243).
• CVE-2026-43066: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (bsc#1264245).
• CVE-2026-43068: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() (bsc#1264255).
• CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1264484).
• CVE-2026-43150: perf/arm-cmn: Reject unsupported hardware configurations (bsc#1264415).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated (bsc#1264609).
• CVE-2026-43332: thermal: core: Fix thermal zone device registration error path (bsc#1265114).
• CVE-2026-43393: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() (bsc#1264723).
• CVE-2026-43394: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit() (bsc#1265081).
• CVE-2026-43411: tipc: fix divide-by-zero in tipc_sk_filter_connect() (bsc#1264672).
• CVE-2026-43455: net: mctp: Ensure keys maintain only one ref to corresponding dev (bsc#1264765).
• CVE-2026-45842: slip: reject VJ receive packets on instances with no rstate array (bsc#1266400).
• CVE-2026-45846: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() (bsc#1266394).
• CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init…

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

The following security issues were fixed:

• CVE-2026-23254: net: gro: fix outer network offset (bsc#1259884).
• CVE-2026-23303: smb: client: Don't log plaintext credentials in cifs_set_cifscreds (bsc#1260502).
• CVE-2026-23327: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed() (bsc#1260548).
• CVE-2026-23438: net: mvpp2: guard flow control update with global_tx_fc in buffer switching (bsc#1261619).
• CVE-2026-31396: net: macb: fix use-after-free access to PTP clock (bsc#1261791).
• CVE-2026-31401: HID: bpf: prevent buffer overflow in hid_hw_request (bsc#1261603).
• CVE-2026-31446: ext4: fix use-after-free in update_super_work when racing with umount (bsc#1262619).
• CVE-2026-31448: ext4: avoid infinite loops caused by residual data (bsc#1262622).
• CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks (bsc#1262624).
• CVE-2026-31455: xfs: stop reclaim before pushing AIL during unmount (bsc#1262615).
• CVE-2026-31518: esp: fix skb leak with espintcp and async crypto (bsc#1262606).
• CVE-2026-31546: net: bonding: fix NULL deref in bond_debug_rlb_hash_show (bsc#1263006).
• CVE-2026-31556: xfs: scrub: unlock dquot before early return in quota scrub (bsc#1263062).
• CVE-2026-31562: drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register (bsc#1263058).
• CVE-2026-31584: media: mediatek: vcodec: fix use-after-free in encoder release path (bsc#1263180).
• CVE-2026-31645: net: lan966x: fix page pool leak in error paths (bsc#1263794).
• CVE-2026-31648: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() (bsc#1263579).
• CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled (bsc#1263724).
• CVE-2026-31671: xfrm_user: fix info leak in build_report() (bsc#1263115).
• CVE-2026-31683: batman-adv: avoid OGM aggregation when skb tailroom is insufficient (bsc#1263594).
• CVE-2026-31703: writeback: Fix use after free in inode_switch_wbs_work_fn() (bsc#1263883).
• CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs() (bsc#1264040).
• CVE-2026-43026: netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent (bsc#1263932).
• CVE-2026-43030: bpf: Fix regsafe() for pointers to packet (bsc#1264000).
• CVE-2026-43040: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak (bsc#1264091).
• CVE-2026-43063: xfs: don't irele after failing to iget in xfs_attri_recover_work (bsc#1264196).
• CVE-2026-43065: ext4: always drain queued discard work in ext4_mb_release() (bsc#1264243).
• CVE-2026-43066: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (bsc#1264245).
• CVE-2026-43068: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() (bsc#1264255).
• CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1264484).
• CVE-2026-43150: perf/arm-cmn: Reject unsupported hardware configurations (bsc#1264415).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated (bsc#1264609).
• CVE-2026-43332: thermal: core: Fix thermal zone device registration error path (bsc#1265114).
• CVE-2026-43393: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() (bsc#1264723).
• CVE-2026-43394: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit() (bsc#1265081).
• CVE-2026-43411: tipc: fix divide-by-zero in tipc_sk_filter_connect() (bsc#1264672).
• CVE-2026-43455: net: mctp: Ensure keys maintain only one ref to corresponding dev (bsc#1264765).
• CVE-2026-45842: slip: reject VJ receive packets on instances with no rstate array (bsc#1266400).
• CVE-2026-45846: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() (bsc#1266394).
• CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init…

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• x86 architecture;
• Cryptographic API;
• Compute Acceleration Framework;
• Drivers core;
• Null block device driver;
• Ublk userspace block driver;
• Bluetooth drivers;
• Counter interface drivers;
• DMA engine subsystem;
• DPLL subsystem;
• GPU drivers;
• HID subsystem;
• Intel Trace Hub HW tracing drivers;
• IIO ADC drivers;
• IIO subsystem;
• On-Chip Interconnect management framework;
• IRQ chip drivers;
• Modular ISDN driver;
• LED subsystem;
• Multiple devices driver;
• UACCE accelerator framework;
• MMC subsystem;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• NVME drivers;
• PHY drivers;
• x86 platform drivers;
• i.MX PM domains;
• SCSI subsystem;
• SLIMbus drivers;
• SPI subsystem;
• TCM subsystem;
• W1 Dallas's 1-wire bus driver;
• Xen hypervisor drivers;
• BTRFS file system;
• EFI Variable file system;
• exFAT file system;
• Ext4 file system;
• HFS+ file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• SMB network file system;
• Scheduler infrastructure;
• Netfilter;
• NFC subsystem;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Perf events;
• Floating proportions library;
• Memory management;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• L2TP protocol;
• MAC80211 subsystem;
• NET/ROM layer;
• Packet sockets;
• Network traffic control;
• SCTP protocol;
• TLS protocol;
• Unix domain sockets;
• VMware vSockets driver;
• Wireless networking;
• ALSA AC97 driver;
• Generic PCM loopback sound driver;
• Creative Sound Blaster X-Fi driver;
• AMD SoC Alsa drivers;
• Texas InstrumentS Audio (ASoC/HDA) drivers;
• USB sound devices;
• KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084,…

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• x86 architecture;
• Cryptographic API;
• Compute Acceleration Framework;
• Drivers core;
• Null block device driver;
• Ublk userspace block driver;
• Bluetooth drivers;
• Counter interface drivers;
• DMA engine subsystem;
• DPLL subsystem;
• GPU drivers;
• HID subsystem;
• Intel Trace Hub HW tracing drivers;
• IIO ADC drivers;
• IIO subsystem;
• On-Chip Interconnect management framework;
• IRQ chip drivers;
• Modular ISDN driver;
• LED subsystem;
• Multiple devices driver;
• UACCE accelerator framework;
• MMC subsystem;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• NVME drivers;
• PHY drivers;
• x86 platform drivers;
• i.MX PM domains;
• SCSI subsystem;
• SLIMbus drivers;
• SPI subsystem;
• TCM subsystem;
• W1 Dallas's 1-wire bus driver;
• Xen hypervisor drivers;
• BTRFS file system;
• EFI Variable file system;
• exFAT file system;
• Ext4 file system;
• HFS+ file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• SMB network file system;
• Scheduler infrastructure;
• Netfilter;
• NFC subsystem;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Perf events;
• Floating proportions library;
• Memory management;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• L2TP protocol;
• MAC80211 subsystem;
• NET/ROM layer;
• Packet sockets;
• Network traffic control;
• SCTP protocol;
• TLS protocol;
• Unix domain sockets;
• VMware vSockets driver;
• Wireless networking;
• ALSA AC97 driver;
• Generic PCM loopback sound driver;
• Creative Sound Blaster X-Fi driver;
• AMD SoC Alsa drivers;
• Texas InstrumentS Audio (ASoC/HDA) drivers;
• USB sound devices;
• KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084,…

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• x86 architecture;
• Cryptographic API;
• Compute Acceleration Framework;
• Drivers core;
• Null block device driver;
• Ublk userspace block driver;
• Bluetooth drivers;
• Counter interface drivers;
• DMA engine subsystem;
• DPLL subsystem;
• GPU drivers;
• HID subsystem;
• Intel Trace Hub HW tracing drivers;
• IIO ADC drivers;
• IIO subsystem;
• On-Chip Interconnect management framework;
• IRQ chip drivers;
• Modular ISDN driver;
• LED subsystem;
• Multiple devices driver;
• UACCE accelerator framework;
• MMC subsystem;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• NVME drivers;
• PHY drivers;
• x86 platform drivers;
• i.MX PM domains;
• SCSI subsystem;
• SLIMbus drivers;
• SPI subsystem;
• TCM subsystem;
• W1 Dallas's 1-wire bus driver;
• Xen hypervisor drivers;
• BTRFS file system;
• EFI Variable file system;
• exFAT file system;
• Ext4 file system;
• HFS+ file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• SMB network file system;
• Scheduler infrastructure;
• Netfilter;
• NFC subsystem;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Perf events;
• Floating proportions library;
• Memory management;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• L2TP protocol;
• MAC80211 subsystem;
• NET/ROM layer;
• Packet sockets;
• Network traffic control;
• SCTP protocol;
• TLS protocol;
• Unix domain sockets;
• VMware vSockets driver;
• Wireless networking;
• ALSA AC97 driver;
• Generic PCM loopback sound driver;
• Creative Sound Blaster X-Fi driver;
• AMD SoC Alsa drivers;
• Texas InstrumentS Audio (ASoC/HDA) drivers;
• USB sound devices;
• KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084,…

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• x86 architecture;
• Cryptographic API;
• Compute Acceleration Framework;
• Drivers core;
• Null block device driver;
• Ublk userspace block driver;
• Bluetooth drivers;
• Counter interface drivers;
• DMA engine subsystem;
• DPLL subsystem;
• GPU drivers;
• HID subsystem;
• Intel Trace Hub HW tracing drivers;
• IIO ADC drivers;
• IIO subsystem;
• On-Chip Interconnect management framework;
• IRQ chip drivers;
• Modular ISDN driver;
• LED subsystem;
• Multiple devices driver;
• UACCE accelerator framework;
• MMC subsystem;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• NVME drivers;
• PHY drivers;
• x86 platform drivers;
• i.MX PM domains;
• SCSI subsystem;
• SLIMbus drivers;
• SPI subsystem;
• TCM subsystem;
• W1 Dallas's 1-wire bus driver;
• Xen hypervisor drivers;
• BTRFS file system;
• EFI Variable file system;
• exFAT file system;
• Ext4 file system;
• HFS+ file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• SMB network file system;
• Scheduler infrastructure;
• Netfilter;
• NFC subsystem;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Perf events;
• Floating proportions library;
• Memory management;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• L2TP protocol;
• MAC80211 subsystem;
• NET/ROM layer;
• Packet sockets;
• Network traffic control;
• SCTP protocol;
• TLS protocol;
• Unix domain sockets;
• VMware vSockets driver;
• Wireless networking;
• ALSA AC97 driver;
• Generic PCM loopback sound driver;
• Creative Sound Blaster X-Fi driver;
• AMD SoC Alsa drivers;
• Texas InstrumentS Audio (ASoC/HDA) drivers;
• USB sound devices;
• KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084,…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• x86 architecture;
• Compute Acceleration Framework;
• Drivers core;
• Null block device driver;
• Ublk userspace block driver;
• Bluetooth drivers;
• Counter interface drivers;
• DMA engine subsystem;
• DPLL subsystem;
• GPU drivers;
• HID subsystem;
• Intel Trace Hub HW tracing drivers;
• IIO ADC drivers;
• IIO subsystem;
• On-Chip Interconnect management framework;
• IRQ chip drivers;
• Modular ISDN driver;
• LED subsystem;
• Multiple devices driver;
• UACCE accelerator framework;
• MMC subsystem;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• NVME drivers;
• PHY drivers;
• x86 platform drivers;
• i.MX PM domains;
• SCSI subsystem;
• SLIMbus drivers;
• SPI subsystem;
• TCM subsystem;
• W1 Dallas's 1-wire bus driver;
• Xen hypervisor drivers;
• BTRFS file system;
• EFI Variable file system;
• exFAT file system;
• Ext4 file system;
• HFS+ file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• SMB network file system;
• Scheduler infrastructure;
• Netfilter;
• NFC subsystem;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Perf events;
• Floating proportions library;
• Memory management;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• L2TP protocol;
• MAC80211 subsystem;
• NET/ROM layer;
• Network traffic control;
• SCTP protocol;
• TLS protocol;
• Unix domain sockets;
• VMware vSockets driver;
• Wireless networking;
• ALSA AC97 driver;
• Generic PCM loopback sound driver;
• Creative Sound Blaster X-Fi driver;
• AMD SoC Alsa drivers;
• Texas InstrumentS Audio (ASoC/HDA) drivers;
• USB sound devices;
• KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23086, CVE-2026-23087, CVE-2026-23088, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23102, CVE-2026-23103, CVE-2026-23105, CVE-2026-23107,…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• x86 architecture;
• Compute Acceleration Framework;
• Drivers core;
• Null block device driver;
• Ublk userspace block driver;
• Bluetooth drivers;
• Counter interface drivers;
• DMA engine subsystem;
• DPLL subsystem;
• GPU drivers;
• HID subsystem;
• Intel Trace Hub HW tracing drivers;
• IIO ADC drivers;
• IIO subsystem;
• On-Chip Interconnect management framework;
• IRQ chip drivers;
• Modular ISDN driver;
• LED subsystem;
• Multiple devices driver;
• UACCE accelerator framework;
• MMC subsystem;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• NVME drivers;
• PHY drivers;
• x86 platform drivers;
• i.MX PM domains;
• SCSI subsystem;
• SLIMbus drivers;
• SPI subsystem;
• TCM subsystem;
• W1 Dallas's 1-wire bus driver;
• Xen hypervisor drivers;
• BTRFS file system;
• EFI Variable file system;
• exFAT file system;
• Ext4 file system;
• HFS+ file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• SMB network file system;
• Scheduler infrastructure;
• Netfilter;
• NFC subsystem;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Perf events;
• Floating proportions library;
• Memory management;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• L2TP protocol;
• MAC80211 subsystem;
• NET/ROM layer;
• Network traffic control;
• SCTP protocol;
• TLS protocol;
• Unix domain sockets;
• VMware vSockets driver;
• Wireless networking;
• ALSA AC97 driver;
• Generic PCM loopback sound driver;
• Creative Sound Blaster X-Fi driver;
• AMD SoC Alsa drivers;
• Texas InstrumentS Audio (ASoC/HDA) drivers;
• USB sound devices;
• KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23086, CVE-2026-23087, CVE-2026-23088, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23102, CVE-2026-23103, CVE-2026-23105, CVE-2026-23107,…

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43503, CVE-2026-46300)

Qualys discovered that a race condition existed in the ptrace subsystem of the Linux kernel when privileged processes are exiting. An unprivileged local attacker could use this issue to expose sensitive information. (CVE-2026-46333)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a memory leak when handling AppArmor notifications. A local attacker could use this to cause resource exhaustion. (CVE-2026-47326)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a NULL pointer dereference when handling AppArmor notifications. A local attacker could use this to cause a kernel oops. (CVE-2026-47327)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an invalid free when handling AppArmor notifications. A local attacker could use this to corrupt kernel memory. (CVE-2026-47328)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained insufficient validation of AppArmor notification responses. A local attacker could use this to allow crafted responses to be processed. (CVE-2026-47329)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 used an uninitialized variable when handling AppArmor notifications. A local attacker could use this to cause incorrect caching of data. (CVE-2026-47330)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a use- after-free (UAF) bug. A local attacker could use this to cause memory corruption and, theoretically, arbitrary code execution. (CVE-2026-47331)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an out-of-bounds (OOB) read when handling AppArmor notifications. A local attacker could use this to cause information disclosure of kernel memory. (CVE-2026-47332)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a out-of-bounds (OOB) read when handling AppArmor notifications. A local attacker could use this to cause kernel memory corruption and, theoretically, influence processing of AppArmor policies. (CVE-2026-47333)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained incorrect holding of locks when handling AppArmor notifications. A local attacker could use this to cause a kernel panic or deadlock. (CVE-2026-47334)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a NULL pointer dereference when handling AppArmor notifications. A local attacker could use this to cause a kernel panic. (CVE-2026-47335)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 used an uninitialized variable when handling AppArmor AF_INET/AF_INET6 socket mediation. A local attacker could use this to influence processing of fine- grained network socket mediation. (CVE-2026-47336)

Tristan Madani and Trevor Lawrence have each independently discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a NULL pointer dereference when handling AppArmor network socket mediation. A local attacker could use this to cause a…

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcode causing loss of integrity and confidentiality. (CVE-2024-36347)

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43503, CVE-2026-46300)

Qualys discovered that a race condition existed in the ptrace subsystem of the Linux kernel when privileged processes are exiting. An unprivileged local attacker could use this issue to expose sensitive information. (CVE-2026-46333)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a memory leak when handling AppArmor notifications. A local attacker could use this to cause resource exhaustion. (CVE-2026-47326)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a NULL pointer dereference when handling AppArmor notifications. A local attacker could use this to cause a kernel oops. (CVE-2026-47327)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an invalid free when handling AppArmor notifications. A local attacker could use this to corrupt kernel memory. (CVE-2026-47328)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained insufficient validation of AppArmor notification responses. A local attacker could use this to allow crafted responses to be processed. (CVE-2026-47329)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 used an uninitialized variable when handling AppArmor notifications. A local attacker could use this to cause incorrect caching of data. (CVE-2026-47330)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a use- after-free (UAF) bug. A local attacker could use this to cause memory corruption and, theoretically, arbitrary code execution. (CVE-2026-47331)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an out-of-bounds (OOB) read when handling AppArmor notifications. A local attacker could use this to cause information disclosure of kernel memory. (CVE-2026-47332)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a out-of-bounds (OOB) read when handling AppArmor notifications. A local attacker could use this to cause kernel memory corruption and, theoretically, influence processing of AppArmor policies. (CVE-2026-47333)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained incorrect holding of locks when handling AppArmor notifications. A local attacker could use this to cause a kernel panic or deadlock. (CVE-2026-47334)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a NULL pointer dereference when handling AppArmor notifications. A local attacker could use this to cause a kernel panic. (CVE-2026-47335)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 used an uninitialized variable when handling AppArmor AF_INET/AF_INET6 socket…

It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43503, CVE-2026-46300)

Qualys discovered that a race condition existed in the ptrace subsystem of the Linux kernel when privileged processes are exiting. An unprivileged local attacker could use this issue to expose sensitive information. (CVE-2026-46333)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a memory leak when handling AppArmor notifications. A local attacker could use this to cause resource exhaustion. (CVE-2026-47326)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a NULL pointer dereference when handling AppArmor notifications. A local attacker could use this to cause a kernel oops. (CVE-2026-47327)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an invalid free when handling AppArmor notifications. A local attacker could use this to corrupt kernel memory. (CVE-2026-47328)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained insufficient validation of AppArmor notification responses. A local attacker could use this to allow crafted responses to be processed. (CVE-2026-47329)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 used an uninitialized variable when handling AppArmor notifications. A local attacker could use this to cause incorrect caching of data. (CVE-2026-47330)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a use- after-free (UAF) bug. A local attacker could use this to cause memory corruption and, theoretically, arbitrary code execution. (CVE-2026-47331)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an out-of-bounds (OOB) read when handling AppArmor notifications. A local attacker could use this to cause information disclosure of kernel memory. (CVE-2026-47332)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a out-of-bounds (OOB) read when handling AppArmor notifications. A local attacker could use this to cause kernel memory corruption and, theoretically, influence processing of AppArmor policies. (CVE-2026-47333)

Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained incorrect holding of locks when handling AppArmor notifications. A local attacker could use this to cause a kernel panic or deadlock. (CVE-2026-47334)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a NULL pointer dereference when handling AppArmor notifications. A local attacker could use this to cause a kernel panic. (CVE-2026-47335)

Tristan Madani discovered that Ubuntu Linux kernel 6.8 used an uninitialized variable when handling AppArmor AF_INET/AF_INET6 socket mediation. A local attacker could use this to influence processing of fine- grained network socket mediation. (CVE-2026-47336)

Tristan Madani and Trevor Lawrence have each independently discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a NULL pointer dereference when handling AppArmor network socket mediation. A local attacker could use this to cause a…