CVE-2026-43503

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail to propagate the SKBFL_SHARED_FRAG bit in skb_shinfo()->flags when moving frags from source to destination. _pskb_copy_fclone() defers the rest of the shinfo metadata to skb_copy_header() after copying frag descriptors, but that helper only carries over gso{size,segs, type} and never touches skb_shinfo()->flags; skb_shift() moves frag descriptors directly and leaves flags untouched. As a result, the destination skb keeps a reference to the same externally-owned or page-cache-backed pages while reporting skb_has_shared_frag() as false. The mismatch is harmful in any in-place writer that uses skb_has_shared_frag() to decide whether shared pages must be detoured through skb_cow_data(). ESP input is one such writer (esp4.c, esp6.c), and a single nft 'dup to <local>' rule -- or any other nf_dup_ipv4() / xt_TEE caller -- is enough to land a pskb_copy()'d skb in esp_input() with the marker stripped, letting an unprivileged user write into the page cache of a root-owned read-only file via authencesn-ESN stray writes. Set SKBFL_SHARED_FRAG on the destination whenever frag descriptors were actually moved from the source. skb_copy() and skb_copy_expand() share skb_copy_header() too but linearize all paged data into freshly allocated head storage and emerge with nr_frags == 0, so skb_has_shared_frag() returns false on its own; they need no change. The same omission exists in skb_gro_receive() and skb_gro_receive_list(). The former moves the incoming skb's frag descriptors into the accumulator's last sub-skb via two paths (a direct frag-move loop and the head_frag + memcpy path); the latter chains the incoming skb whole onto p's frag_list. Downstream skb_segment() reads only skb_shinfo(p)->flags, and skb_segment_list() reuses each sub-skb's shinfo as the nskb -- both p and lp must carry the marker. The same omission also exists in tcp_clone_payload(), which builds an MTU probe skb by moving frag descriptors from skbs on sk_write_queue into a freshly allocated nskb. The helper falls into the same family and warrants the same fix for consistency; no TCP TX-side in-place writer is currently known to reach a user page through this gap, but a future consumer depending on the marker would regress silently. The same omission exists in skb_segment(): the per-iteration flag merge takes only head_skb's flag, and the inner switch that rebinds frag_skb to list_skb on head_skb-frags exhaustion does not fold the new frag_skb's flag into nskb. Fold frag_skb's flag at both sites so segments drawing frags from frag_list members carry the marker.

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

Revert "smb: client: fix TCP timers deadlock after rmmod"

This reverts commit e9f2517a3e18a54a3943c098d2226b245d488801.

Commit e9f2517a3e18 ("smb: client: fix TCP timers deadlock after rmmod") is intended to fix a null-ptr-deref in LOCKDEP, which is mentioned as CVE-2024-54680, but is actually did not fix anything; The issue can be reproduced on top of it. [0]

Also, it reverted the change by commit ef7134c7fc48 ("smb: client: Fix use-after-free of network namespace.") and introduced a real issue by reviving the kernel TCP socket.

When a reconnect happens for a CIFS connection, the socket state transitions to FIN_WAIT_1. Then, inet_csk_clear_xmit_timers_sync() in tcp_close() stops all timers for the socket.

If an incoming FIN packet is lost, the socket will stay at FIN_WAIT_1 forever, and such sockets could be leaked up to net.ipv4.tcp_max_orphans.

Usually, FIN can be retransmitted by the peer, but if the peer aborts the connection, the issue comes into reality.

I warned about this privately by pointing out the exact report [1], but the bogus fix was finally merged.

So, we should not stop the timers to finally kill the connection on our side in that case, meaning we must not use a kernel socket for TCP whose sk->sk_net_refcnt is 0.

The kernel socket does not have a reference to its netns to make it possible to tear down netns without cleaning up every resource in it.

For example, tunnel devices use a UDP socket internally, but we can destroy netns without removing such devices and let it complete during exit. Otherwise, netns would be leaked when the last application died.

However, this is problematic for TCP sockets because TCP has timers to close the connection gracefully even after the socket is close()d. The lifetime of the socket and its netns is different from the lifetime of the underlying connection.

If the socket user does not maintain the netns lifetime, the timer could be fired after the socket is close()d and its netns is freed up, resulting in use-after-free.

Actually, we have seen so many similar issues and converted such sockets to have a reference to netns.

That's why I converted the CIFS client socket to have a reference to netns (sk->sk_net_refcnt == 1), which is somehow mentioned as out-of-scope of CIFS and technically wrong in e9f2517a3e18, but is in-scope and right fix.

Regarding the LOCKDEP issue, we can prevent the module unload by bumping the module refcount when switching the LOCKDDEP key in sock_lock_init_class_and_name(). [2]

For a while, let's revert the bogus fix.

Note that now we can use sk_net_refcnt_upgrade() for the socket conversion, but I'll do so later separately to make backport easy.(CVE-2025-22077)

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

smb: client: Fix use-after-free in cifs_fill_dirent

There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the following KASAN warning.

================================================================== BUG: KASAN: slab-use-after-free in cifs_fill_dirent+0xb03/0xb60 [cifs] Read of size 4 at addr ffff8880099b819c by task a.out/342975

CPU: 2 UID: 0 PID: 342975 Comm: a.out Not tainted 6.15.0-rc6+ #240 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x640 kasan_report+0xb8/0xf0 cifs_fill_dirent+0xb03/0xb60 [cifs] cifs_readdir+0x12cb/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f996f64b9f9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2…

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

iomap: Fix possible overflow condition in iomap_write_delalloc_scan

folio_next_index() returns an unsigned long value which left shifted by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead use folio_pos(folio) + folio_size(folio), which does this correctly.(CVE-2023-54285)

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

bcache: fix NULL pointer in cache_set_flush()

1. LINE#1794 - LINE#1887 is some codes about function of bch_cache_set_alloc().
2. LINE#2078 - LINE#2142 is some codes about function of register_cache_set().
3. register_cache_set() will call bch_cache_set_alloc() in LINE#2098.

1794 struct cache_set *bch_cache_set_alloc(struct cache_sb *sb) 1795 { ... 1860 if (!(c->devices = kcalloc(c->nr_uuids, sizeof(void *), GFP_KERNEL)) || 1861 mempool_init_slab_pool(&c->search, 32, bch_search_cache) || 1862 mempool_init_kmalloc_pool(&c->bio_meta, 2, 1863 sizeof(struct bbio) + sizeof(struct bio_vec) * 1864 bucket_pages(c)) || 1865 mempool_init_kmalloc_pool(&c->fill_iter, 1, iter_size) || 1866 bioset_init(&c->bio_split, 4, offsetof(struct bbio, bio), 1867 BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER) || 1868 !(c->uuids = alloc_bucket_pages(GFP_KERNEL, c)) || 1869 !(c->moving_gc_wq = alloc_workqueue("bcache_gc", 1870 WQ_MEM_RECLAIM, 0)) || 1871 bch_journal_alloc(c) || 1872 bch_btree_cache_alloc(c) || 1873 bch_open_buckets_alloc(c) || 1874 bch_bset_sort_state_init(&c->sort, ilog2(c->btree_pages))) 1875 goto err; ^^^^^^^^ 1876 ... 1883 return c; 1884 err: 1885 bch_cache_set_unregister(c); ^^^^^^^^^^^^^^^^^^^^^^^^^^^ 1886 return NULL; 1887 } ... 2078 static const char *register_cache_set(struct cache *ca) 2079 { ... 2098 c = bch_cache_set_alloc(&ca->sb); 2099 if (!c) 2100 return err; ^^^^^^^^^^ ... 2128 ca->set = c; 2129 ca->set->cache[ca->sb.nr_this_dev] = ca; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ... 2138 return NULL; 2139 err: 2140 bch_cache_set_unregister(c); 2141 return err; 2142 }

(1) If LINE#1860 - LINE#1874 is true, then do 'goto err'(LINE#1875) and call bch_cache_set_unregister()(LINE#1885). (2) As (1) return NULL(LINE#1886), LINE#2098 - LINE#2100 would return. (3) As (2) has returned, LINE#2128 - LINE#2129 would do not give the value to c->cache[], it means that c->cache[] is NULL.

LINE#1624 - LINE#1665 is some codes about function of cache_set_flush(). As (1), in LINE#1885 call bch_cache_set_unregister() ---> bch_cache_set_stop() ---> closure_queue() -.-> cache_set_flush() (as below LINE#1624)

1624 static void cache_set_flush(struct closure *cl) 1625 { ... 1654 for_each_cache(ca, c, i) 1655 if (ca->alloc_thread) ^^ 1656 kthread_stop(ca->alloc_thread); ... 1665 }

(4) In LINE#1655 ca is NULL(see (3)) in cache_set_flush() then the kernel crash occurred as below: [ 846.712887] bcache: register_cache() error drbd6: cannot allocate memory [ 846.713242] bcache: register_bcache() error : failed to register device [ 846.713336] bcache: cache_set_free() Cache set 2f84bdc1-498a-4f2f-98a7-01946bf54287 unregistered [ 846.713768] BUG: unable to handle kernel NULL pointer dereference at 00000000000009f8 [ 846.714790] PGD 0 P4D 0 [ 846.715129]…

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

net: mvpp2: Prevent parser TCAM memory corruption

Protect the parser TCAM/SRAM memory, and the cached (shadow) SRAM information, from concurrent modifications.

Both the TCAM and SRAM tables are indirectly accessed by configuring an index register that selects the row to read or write to. This means that operations must be atomic in order to, e.g., avoid spreading writes across multiple rows. Since the shadow SRAM array is used to find free rows in the hardware table, it must also be protected in order to avoid TOCTOU errors where multiple cores allocate the same row.

This issue was detected in a situation where mvpp2_set_rx_mode() ran concurrently on two CPUs. In this particular case the MVPP2_PE_MAC_UC_PROMISCUOUS entry was corrupted, causing the classifier unit to drop all incoming unicast - indicated by the rx_classifier_drops counter.(CVE-2025-22060)

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

mptcp: fix NULL pointer in can_accept_new_subflow

When testing valkey benchmark tool with MPTCP, the kernel panics in 'mptcp_can_accept_new_subflow' because subflow_req->msk is NULL.

Call trace:

mptcp_can_accept_new_subflow (./net/mptcp/subflow.c:63 (discriminator 4)) (P) subflow_syn_recv_sock (./net/mptcp/subflow.c:854) tcp_check_req (./net/ipv4/tcp_minisocks.c:863) tcp_v4_rcv (./net/ipv4/tcp_ipv4.c:2268) ip_protocol_deliver_rcu (./net/ipv4/ip_input.c:207) ip_local_deliver_finish (./net/ipv4/ip_input.c:234) ip_local_deliver (./net/ipv4/ip_input.c:254) ip_rcv_finish (./net/ipv4/ip_input.c:449) ...

According to the debug log, the same req received two SYN-ACK in a very short time, very likely because the client retransmits the syn ack due to multiple reasons.

Even if the packets are transmitted with a relevant time interval, they can be processed by the server on different CPUs concurrently). The 'subflow_req->msk' ownership is transferred to the subflow the first, and there will be a risk of a null pointer dereference here.

This patch fixes this issue by moving the 'subflow_req->msk' under the own_req == true conditional.

Note that the !msk check in subflow_hmac_valid() can be dropped, because the same check already exists under the own_req mpj branch where the code has been moved to.(CVE-2025-23145)

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

mISDN: hfcpci: Fix warning when deleting uninitialized timer

With CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads to the following splat:

[ 250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0 [ 250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0 [ 250.218775] Modules linked in: hfcpci(-) mISDN_core [ 250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod Not tainted 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntary) [ 250.220940] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 250.222377] RIP: 0010:debug_print_object+0x1b6/0x2c0 [ 250.223131] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 41 56 48 8b 14 dd a0 4e 01 9f 48 89 ee 48 c7 c7 20 46 01 9f e8 cb 84d [ 250.225805] RSP: 0018:ffff888015ea7c08 EFLAGS: 00010286 [ 250.226608] RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff9be93a95 [ 250.227708] RDX: 1ffff1100d945138 RSI: 0000000000000008 RDI: ffff88806ca289c0 [ 250.228993] RBP: ffffffff9f014a00 R08: 0000000000000001 R09: ffffed1002bd4f39 [ 250.230043] R10: ffff888015ea79cf R11: 0000000000000001 R12: 0000000000000001 [ 250.231185] R13: ffffffff9eea0520 R14: 0000000000000000 R15: ffff888015ea7cc8 [ 250.232454] FS: 00007f3208f01540(0000) GS:ffff8880caf5a000(0000) knlGS:0000000000000000 [ 250.233851] CS: 0010 DS: 0000 ES: 0000 CR0:…

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

mISDN: hfcpci: Fix warning when deleting uninitialized timer

With CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads to the following splat:

[ 250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0 [ 250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0 [ 250.218775] Modules linked in: hfcpci(-) mISDN_core [ 250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod Not tainted 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntary) [ 250.220940] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 250.222377] RIP: 0010:debug_print_object+0x1b6/0x2c0 [ 250.223131] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 41 56 48 8b 14 dd a0 4e 01 9f 48 89 ee 48 c7 c7 20 46 01 9f e8 cb 84d [ 250.225805] RSP: 0018:ffff888015ea7c08 EFLAGS: 00010286 [ 250.226608] RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff9be93a95 [ 250.227708] RDX: 1ffff1100d945138 RSI: 0000000000000008 RDI: ffff88806ca289c0 [ 250.228993] RBP: ffffffff9f014a00 R08: 0000000000000001 R09: ffffed1002bd4f39 [ 250.230043] R10: ffff888015ea79cf R11: 0000000000000001 R12: 0000000000000001 [ 250.231185] R13: ffffffff9eea0520 R14: 0000000000000000 R15: ffff888015ea7cc8 [ 250.232454] FS: 00007f3208f01540(0000) GS:ffff8880caf5a000(0000) knlGS:0000000000000000 [ 250.233851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 250.234856] CR2: 00007f32090a7421 CR3: 0000000004d63000 CR4: 00000000000006f0 [ 250.236117] Call Trace: [ 250.236599] <TASK> [ 250.236967] ? trace_irq_enable.constprop.0+0xd4/0x130 [ 250.237920] debug_object_assert_init+0x1f6/0x310 [ 250.238762] ? __pfx_debug_object_assert_init+0x10/0x10 [ 250.239658] ? __lock_acquire+0xdea/0x1c70 [ 250.240369] __try_to_del_timer_sync+0x69/0x140 [ 250.241172] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 250.242058] ? __timer_delete_sync+0xc6/0x120 [ 250.242842] ? lock_acquire+0x30/0x80 [ 250.243474] ? __timer_delete_sync+0xc6/0x120 [ 250.244262] __timer_delete_sync+0x98/0x120 [ 250.245015] HFC_cleanup+0x10/0x20 [hfcpci] [ 250.245704] __do_sys_delete_module+0x348/0x510 [ 250.246461] ? __pfx___do_sys_delete_module+0x10/0x10 [ 250.247338] do_syscall_64+0xc1/0x360 [ 250.247924] entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fix this by initializing hfc_tl timer with DEFINE_TIMER macro. Also, use mod_timer instead of manual timeout update.(CVE-2025-39833)

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

platform/x86/amd/pmc: Add support for Van Gogh SoC

The ROG Xbox Ally (non-X) SoC features a similar architecture to the Steam Deck. While the Steam Deck supports S3 (s2idle causes a crash), this support was dropped by the Xbox Ally which only S0ix suspend.

Since the handler is missing here, this causes the device to not suspend and the AMD GPU driver to crash while trying to resume afterwards due to a power hang.(CVE-2025-68334)

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

team: Move team device type change at the end of team_port_add

Attempting to add a port device that is already up will expectedly fail, but not before modifying the team device header_ops.

In the case of the syzbot reproducer the gre0 device is already in state UP when it attempts to add it as a port device of team0, this fails but before that header_ops->create of team0 is changed from eth_header to ipgre_header in the call to team_dev_type_check_change.

Later when we end up in ipgre_header() struct ip_tunnel* points to nonsense as the private data of the device still holds a struct team.

Example sequence of iproute2 commands to reproduce the hang/BUG(): ip link add dev team0 type team ip link add dev gre0 type gre ip link set dev gre0 up ip link set dev gre0…

Root has patched CVE-2026-43503 in the linux package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2026-43503 in the linux package for Root:Debian:12. Multiple fixed versions available.

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail to propagate the SKBFL_SHARED_FRAG bit in skb_shinfo()->flags when moving frags from source to destination. _pskb_copy_fclone() defers the rest of the shinfo metadata to skb_copy_header() after copying frag descriptors, but that helper only carries over gso{size,segs, type} and never touches skb_shinfo()->flags; skb_shift() moves frag descriptors directly and leaves flags untouched. As a result, the destination skb keeps a reference to the same externally-owned or page-cache-backed pages while reporting skb_has_shared_frag() as false. The mismatch is harmful in any in-place writer that uses skb_has_shared_frag() to decide whether shared pages must be detoured through skb_cow_data(). ESP input is one such writer (esp4.c, esp6.c), and a single nft 'dup to <local>' rule -- or any other nf_dup_ipv4() / xt_TEE caller -- is enough to land a pskb_copy()'d skb in esp_input() with the marker stripped, letting an unprivileged user write into the page cache of a root-owned read-only file via authencesn-ESN stray writes. Set SKBFL_SHARED_FRAG on the destination whenever frag descriptors were actually moved from the source. skb_copy() and skb_copy_expand() share skb_copy_header() too but linearize all paged data into freshly allocated head storage and emerge with nr_frags == 0, so skb_has_shared_frag() returns false on its own; they need no change. The same omission exists in skb_gro_receive() and skb_gro_receive_list(). The former moves the incoming skb's frag descriptors into the accumulator's last sub-skb via two paths (a direct frag-move loop and the head_frag + memcpy path); the latter chains the incoming skb whole onto p's frag_list. Downstream skb_segment() reads only skb_shinfo(p)->flags, and skb_segment_list() reuses each sub-skb's shinfo as the nskb -- both p and lp must carry the marker. The same omission also exists in tcp_clone_payload(), which builds an MTU probe skb by moving frag descriptors from skbs on sk_write_queue into a freshly allocated nskb. The helper falls into the same family and warrants the same fix for consistency; no TCP TX-side in-place writer is currently known to reach a user page through this gap, but a future consumer depending on the marker would regress silently. The same omission exists in skb_segment(): the per-iteration flag merge takes only head_skb's flag, and the inner switch that rebinds frag_skb to list_skb on head_skb-frags exhaustion does not fold the new frag_skb's flag into nskb. Fold frag_skb's flag at both sites so segments drawing frags from frag_list members carry the marker.

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

Security Fix(es):

• kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)
• kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)
• kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116)
• 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: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state (CVE-2026-23136)
• kernel: net/sched: cls_u32: use skb_header_pointer_careful() (CVE-2026-23204)
• kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
• kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() (CVE-2026-31532)
• kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)
• kernel: md/bitmap: fix GPF in write_page caused by resize race (CVE-2026-43163)
• kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)
• kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)
• kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

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: net: af_can: do not leave a dangling sk pointer in can_create() (CVE-2024-56603)
• kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)
• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
• kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)
• kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
• kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)
• kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)
• kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)
• kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)
• kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

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: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

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: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

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:

net: skbuff: propagate shared-frag marker through frag-transfer helpers

Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail to propagate the SKBFL_SHARED_FRAG bit in skb_shinfo()->flags when moving frags from source to destination. _pskb_copy_fclone() defers the rest of the shinfo metadata to skb_copy_header() after copying frag descriptors, but that helper only carries over gso{size,segs, type} and never touches skb_shinfo()->flags; skb_shift() moves frag descriptors directly and leaves flags untouched. As a result, the destination skb keeps a reference to the same externally-owned or page-cache-backed pages while reporting skb_has_shared_frag() as false.

The mismatch is harmful in any in-place writer that uses skb_has_shared_frag() to decide whether shared pages must be detoured through skb_cow_data(). ESP input is one such writer (esp4.c, esp6.c), and a single nft 'dup to <local>' rule -- or any other nf_dup_ipv4() / xt_TEE caller -- is enough to land a pskb_copy()'d skb in esp_input() with the marker stripped, letting an unprivileged user write into the page cache of a root-owned read-only file via authencesn-ESN stray writes.

Set SKBFL_SHARED_FRAG on the destination whenever frag descriptors were actually moved from the source. skb_copy() and skb_copy_expand() share skb_copy_header() too but linearize all paged data into freshly allocated head storage and emerge with nr_frags == 0, so skb_has_shared_frag() returns false on its own; they need no change.

The same omission exists in skb_gro_receive() and skb_gro_receive_list(). The former moves the incoming skb's frag descriptors into the accumulator's last sub-skb via two paths (a direct frag-move loop and the head_frag + memcpy path); the latter chains the incoming skb whole onto p's frag_list. Downstream skb_segment() reads only skb_shinfo(p)->flags, and skb_segment_list() reuses each sub-skb's shinfo as the nskb -- both p and lp must carry the marker.

The same omission also exists in tcp_clone_payload(), which builds an MTU probe skb by moving frag descriptors from skbs on sk_write_queue into a freshly allocated nskb. The helper falls into the same family and warrants the same fix for consistency; no TCP TX-side in-place writer is currently known to reach a user page through this gap, but a future consumer depending on the marker would regress silently.

The same omission exists in skb_segment(): the per-iteration flag merge takes only head_skb's flag, and the inner switch that rebinds frag_skb to list_skb on head_skb-frags exhaustion does not fold the new frag_skb's flag into nskb. Fold frag_skb's flag at both sites so segments drawing frags from frag_list members carry the marker.

• Rebased onto Oracle UEK base 5.4.17-2136.357.2.el7uek
• sctp: don't free the ASCONF's own transport in DEL-IP processing {CVE-2026-64564}
• ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison {CVE-2026-53309}
• ocfs2/dlm: validate qr_numregions in dlm_match_regions() {CVE-2026-53043}
• ixgbevf: fix use-after-free in VEPA multicast source pruning {CVE-2026-64113}
• ipv4: raw: reject IP_HDRINCL packets with ihl < 5 {CVE-2026-64114}
• NFSv4: include MAY_WRITE in open permission mask for O_TRUNC {CVE-2026-64298}
• fuse: re-lock request before returning from fuse_ref_folio() {CVE-2026-64266}
• scsi: isci: Fix use-after-free in device removal path {CVE-2026-64103}
• crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec {CVE-2026-23060}
• futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock {CVE-2026-53166}
• net: af_key: zero aligned sockaddr tail in PF_KEY exports {CVE-2026-43088}
• scsi: aic94xx: fix use-after-free in device removal path {CVE-2025-71075}
• i2c: piix4: Fix adapter not be removed in piix4_remove() {CVE-2022-49900}
• Bluetooth: MGMT: validate LTK enc_size on load {CVE-2026-43020}
• ext4: convert inline data to extents when truncate exceeds inline size {CVE-2026-31452}
• can: raw: fix ro->uniq use-after-free in raw_rcv() {CVE-2026-31532}
• ALSA: 6fire: fix use-after-free on disconnect {CVE-2026-31581}
• ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY {CVE-2026-31597}
• netfilter: nf_conntrack_helper: pass helper to expect cleanup {CVE-2026-43027}
• drm/amdgpu: Fix use-after-free race in VM acquire {CVE-2026-43370}
• xfrm_user: fix info leak in build_mapping() {CVE-2026-43089}
• xfs: fix freemap adjustments when adding xattrs to leaf blocks {CVE-2026-43158}
• libceph: make decode_pool() more resilient against corrupted osdmaps {CVE-2025-71116}
• e1000: fix OOB in e1000_tbi_should_accept() {CVE-2025-71093}
• ALSA: usb-audio: Use correct version for UAC3 header validation {CVE-2026-23318}
• nfnetlink_osf: validate individual option lengths in fingerprints {CVE-2026-23397}
• Squashfs: check metadata block offset is within range {CVE-2026-23388}
• net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled {CVE-2026-23381}
• wifi: mac80211: fix NULL deref in mesh_matches_local() {CVE-2026-23396}
• icmp: fix NULL pointer dereference in icmp_tag_validation() {CVE-2026-23398}
• HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them {CVE-2026-23382}
• net: usb: kalmia: validate USB endpoints {CVE-2026-23365}
• wifi: radiotap: reject radiotap with unknown bits {CVE-2026-23367}
• drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock() {CVE-2026-23356}
• batman-adv: reject oversized global TT response buffers {CVE-2026-31659}
• drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() {CVE-2026-43206}
• net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak {CVE-2026-43040}
• ALSA: ctxfi: Limit PTP to a single page {CVE-2026-31602}
• nvdimm/bus: Fix potential use after free in asynchronous initialization {CVE-2026-31399}
• usb: class: cdc-wdm: fix reordering issue in read code path {CVE-2026-43427}
• media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405}
• sysctl: Fix data races in proc_douintvec(). {CVE-2022-49641}
• netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() {CVE-2026-43450}
• ALSA: caiaq: fix stack out-of-bounds read in init_card {CVE-2026-31778}
• atm: lec: fix use-after-free in sock_def_readable() {CVE-2026-43050}
• fs: writeback: fix use-after-free in __mark_inode_dirty() {CVE-2025-39866}
• usb: core: config: Prevent OOB read in SS endpoint companion parsing {CVE-2025-39760}
• crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• KVM: x86: Reset IRTE to host control if new route isn't postable {CVE-2025-37885}
• vhost-scsi: Fix handling of multiple calls to vhost_scsi_set_endpoint {CVE-2025-22083}
• mm:…

• net: skbuff: propagate shared-frag marker in skb_zerocopy()
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• net/sched: fix pedit partial COW leading to page cache corruption {CVE-2026-46331}
• ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START {CVE-2026-98130}
• tipc: require net admin for TIPCv2 netlink mutators {CVE-2026-74283}
• sctp: fix OOB write to userspace in sctp_getsockopt_peer_auth_chunks {CVE-2026-53004}
• usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() {CVE-2026-63962}
• ice: fix double-free of tx_buf skb {CVE-2026-53009}
• configfs: unhash the dentry before dropping the item in rmdir {CVE-2026-97949}
• configfs_lookup(): don't leave ->s_dentry dangling on failure {CVE-2026-74359}
• xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() {CVE-2026-53239}
• bpf: Fix same-register dst/src OOB read and pointer leak in sock_ops {CVE-2026-53078}
• crypto: authencesn - reject short ahash digests during instance creation {CVE-2026-46033}
• smb: client: reject userspace cifs.idmap descriptions {CVE-2026-97564}
• HID: lg-g15: cancel pending work on remove to fix a use-after-free {CVE-2026-64362}
• HID: hidpp: fix potential UAF in hidpp_connect_event() {CVE-2026-93826}
• hid: hid-logitech-hidpp: avoid unnecessary assignments in hidpp_connect_event {CVE-2026-93826}
• KEYS: encrypted: fix integer overflow of datablob_len {CVE-2026-98222}
• scsi: qla2xxx: Skip vport under deletion in report ID acquisition {CVE-2026-97531}
• dmaengine: fix use-after-free in dma_chan_put() and dma_release_channel() {CVE-2026-98343}
• tipc: prevent snt_unacked underflow on CONN_ACK {CVE-2026-74282}
• libceph: Fix potential null-ptr-deref in decode_choose_args() {CVE-2026-52957}
• libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() {CVE-2026-52956}
• sctp: prevent peer transport count overflow {CVE-2026-74469}
• sctp: fix addr_wq_timer race in sctp_free_addr_wq() {CVE-2026-72383}
• sctp: fix err_chunk memory leaks in INIT handling {CVE-2026-72413}
• nvme: add missing SRCU grace period in error path {CVE-2026-89972}
• nvme-tcp: fix host memory disclosure on R2T for a read command {CVE-2026-89481}
• drm/vmwgfx: validate DRAW_PRIMITIVES header size before division {CVE-2026-74444}
• drm/amd/display: Fix dangling pointer in CRTC reset function {CVE-2026-93175}
• nouveau/gem: reserve the bo in the info ioctl around the vma lookup {CVE-2026-89553}
• usb: fix UAF when probe runs concurrent to dyn ID removal {CVE-2026-93117}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() {CVE-2026-53195}
• wifi: brcmsmac: fix UAF in brcms_free_timer() {CVE-2026-98196}
• slip: remove slip_hangup() to fix use-after-free in slip_receive_buf() {CVE-2026-90057}
• vxlan: re-fetch eth header after route_shortcircuit() {CVE-2026-80681}
• net: thunderbolt: Fix frags[] overflow by bounding frame_count {CVE-2026-72157}
• RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() {CVE-2026-46181}
• wifi: ath9k: fix OOB access from firmware tx status queue ID {CVE-2026-74408}
• ppp: require CAP_NET_ADMIN in target netns for unattached ioctls {CVE-2026-53075}
• wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() {CVE-2026-46069}
• Bluetooth: btusb: fix use-after-free on registration failure {CVE-2026-64471}
• scsi: target: iscsi: Reserve a terminator byte for the login payload {CVE-2026-90011}
• scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() {CVE-2026-46149}
• pNFS: Fix use-after-free in pnfs_update_layout() {CVE-2026-63800}
• NFSv4/flexfiles: reject zero filehandle version count {CVE-2026-53392}
• fs/mbcache: cancel shrink work before destroying the…

• net: skbuff: propagate shared-frag marker in skb_zerocopy()
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• net/sched: fix pedit partial COW leading to page cache corruption {CVE-2026-46331}
• ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• smb: client: harden POSIX SID length parsing {CVE-2026-64380}
• RDMA: Fix use-after-free in rxe_queue_cleanup {CVE-2021-47616}
• nfsd: validate symlink target length in NFSv4 CREATE {CVE-2026-89699}
• sctp: fix addr_wq_timer race in sctp_free_addr_wq() {CVE-2026-72383}
• isofs: fix out-of-bounds page array access on empty zisofs block {CVE-2026-89778}
• configfs: unhash the dentry before dropping the item in rmdir {CVE-2026-97949}
• netfilter: ipset: fix race between dump and ip_set_list resize {CVE-2026-64189}
• netfilter: conntrack_irc: fix possible out-of-bounds read {CVE-2026-53268}
• ipvs: clear the svc scheduler ptr early on edit {CVE-2026-53270}
• netfilter: xt_policy: fix strict mode inbound policy matching {CVE-2026-52920}
• media: cx23885: cancel NetUP CI work before teardown {CVE-2026-89893}
• dmaengine: Fix possible use after free {CVE-2026-72476}
• net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring {CVE-2026-64047}
• tipc: prevent snt_unacked underflow on CONN_ACK {CVE-2026-74282}
• xfrm: hold net_device reference under RCU in bundle creation {CVE-2026-98364}
• xfrm: Check for underflow in xfrm_state_mtu {CVE-2026-64009}
• net: mpls: clear inner_protocol when the last label is popped {CVE-2026-97612}
• net: guard timestamp cmsgs to real error queue skbs {CVE-2026-53223}
• thunderbolt: Bound root directory content to block size {CVE-2026-53149}
• SUNRPC: always drain cache_cleaner before destroying a cache_detail {CVE-2026-89548}
• SUNRPC: harden gss_krb5_unwrap_v2 against short tokens {CVE-2026-89542}
• SUNRPC: svcauth_gss: enforce krb5 token minimum length {CVE-2026-89550}
• SUNRPC: Reject short RFC 4121 MIC tokens in gss_krb5_verify_mic_v2 {CVE-2026-89537}
• SUNRPC: make sure cache entry active before cache_show {CVE-2024-53174}
• ipv6: fix fib6 walker UAF on seq stop {CVE-2026-97940}
• ipv6: sr: restore network header before routing and forwarding {CVE-2026-98096}
• ipv6: sit: reload inner IPv6 header after GSO offloads {CVE-2026-53228}
• ipv6: mcast: Fix use-after-free when processing MLD queries {CVE-2026-53275}
• ipv6: exthdrs: refresh nh after handling HAO option {CVE-2026-63922}
• ip6_gre: Use cached t->net in ip6erspan_changelink(). {CVE-2026-46120}
• ipv6: fix possible UAF in icmpv6_rcv() {CVE-2026-53006}
• ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() {CVE-2026-64002}
• Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• ACPICA: Add validation for node in acpi_ns_build_normalized_path() {CVE-2026-97448}
• scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() {CVE-2026-46149}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() {CVE-2026-53195}
• mrp: introduce active flags to prevent UAF when applicant uninit {CVE-2022-50697}
• HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature {CVE-2026-89729}
• net/sched: defer qdisc freeing after failed creation {CVE-2026-98017}
• Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp {CVE-2026-53071}
• Bluetooth: L2CAP: Fix invalid access if ECRED Reconfigure fails {CVE-2026-53071}
• scsi: qla2xxx: Clamp MSI-X derived queue counts to avoid truncation {CVE-2026-89856}
• drm: fix race between partial drm_dev_register() failure and ioctl {CVE-2026-89823}
• drm/amd/pm: bound pp_dpm_set_pp_table() memcpy {CVE-2026-97427}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059} -…

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

• CVE-2026-74480
  • net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• CVE-2026-74581
  • net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• CVE-2026-80714
  • ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• CVE-2026-43503
  • net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• CVE-2026-93204
  • batman-adv: dat: atomically update mac addresses {CVE-2026-93204}
• CVE-2026-90293
  • IB/isert: post the full-feature receive buffers after session registration {CVE-2026-90293}
• CVE-2026-90207
  • ALSA: seq: midi: Serialize input teardown with event_input {CVE-2026-90207}
• CVE-2026-93051
  • misc: ad525x_dpot: use driver core groups for sysfs files {CVE-2026-93051}
• CVE-2026-90302
  • ocfs2: synchronize heartbeat callbacks with o2net teardown {CVE-2026-90302}
• CVE-2026-90112
  • net: qlcnic: validate unified ROM sections before loading {CVE-2026-90112}
• CVE-2026-90294
  • IB/isert: delay the final Login Response until the session is registered {CVE-2026-90294}
• CVE-2026-53059
  • dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• CVE-2026-89723
  • nilfs2: fix slab-out-of-bounds in nilfs_direct_propagate after truncation {CVE-2026-89723}
• CVE-2026-97938
  • reboot: fix cad_pid use-after-free race {CVE-2026-97938}
• CVE-2026-52955
  • libceph: Fix potential out-of-bounds access in crush_decode() {CVE-2026-52955}
• Miscellaneous upstream changes
  • net: skbuff: propagate shared-frag marker in skb_zerocopy()
• Bump ABI 4.15.0-269

• CVE-2026-74480
  • net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• CVE-2026-74581
  • net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• CVE-2026-80714
  • ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• CVE-2026-43503
  • net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• CVE-2026-98357
  • IB/isert: wait for deferred control PDU completions before releasing the connection {CVE-2026-98357}
• CVE-2026-98222
  • KEYS: encrypted: fix integer overflow of datablob_len {CVE-2026-98222}
• CVE-2026-98383
  • bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL {CVE-2026-98383}
• CVE-2026-68137
  • net/x25: fix use-after-free in x25_kill_by_neigh() {CVE-2026-68137}
• CVE-2026-64312
  • crypto: pcrypt - restore callback for non-parallel fallback {CVE-2026-64312}
• CVE-2026-63948
  • Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn {CVE-2026-63948}
• CVE-2026-74267
  • net/sched: sch_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring qlen {CVE-2026-74267}
• CVE-2026-93795
  • blk-cgroup: fix leaks and online flag on radix_tree_insert failure {CVE-2026-93795}
• CVE-2026-97535
  • scsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size {CVE-2026-97535}
• CVE-2026-93794
  • smb/client: flush dirty data before punching a hole {CVE-2026-93794}
• CVE-2026-93787
  • smb: client: bound dirent name against end of SMB response in cifs_filldir {CVE-2026-93787}
• CVE-2026-97557
  • smb: client: avoid leaking refcount in cifs_queue_oplock_break() {CVE-2026-97557}
• CVE-2026-97582
  • hwmon: (gpio-fan) Fix use-after-free in alarm work {CVE-2026-97582}
• CVE-2026-93792
  • wifi: iwlwifi: mvm: fix a possible underflow {CVE-2026-93792}
• CVE-2026-97541
  • wifi: ath9k_htc: don't store usb_device_id {CVE-2026-97541}
• CVE-2026-93268
  • ext4: skip extra isize expansion during mount to prevent deadlock {CVE-2026-93268}
• CVE-2026-93226
  • ipv6: use RCU iterator to dump route exceptions {CVE-2026-93226}
• CVE-2026-93782
  • vhost-scsi: flush backend after device ioctls {CVE-2026-93782}
• CVE-2026-93287
  • i2c: smbus: reject oversized block transfers in the common path {CVE-2026-93287}
• CVE-2026-93264
  • RDMA/efa: Fix PBL chunk length computation {CVE-2026-93264}
• CVE-2026-90002
  • ftrace: Take trace_array reference before accessing its ftrace_ops {CVE-2026-90002}
• CVE-2026-90223
  • nfc: llcp: bound SNL TLV parsing to the skb and add length checks {CVE-2026-90223}
• CVE-2026-80905
  • net: tap: fix wrong transport_header when sending VLAN-tagged frame {CVE-2026-80905}
• CVE-2026-80783
  • HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event() {CVE-2026-80783}
• CVE-2026-52955
  • libceph: Fix potential out-of-bounds access in crush_decode() {CVE-2026-52955}
• Miscellaneous upstream changes
  • net: skbuff: propagate shared-frag marker in skb_zerocopy()
• Bump ABI 5.4.0-242

• CVE-2026-74480
  • net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• CVE-2026-74581
  • net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• CVE-2026-80714
  • ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• CVE-2026-43503
  • net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• CVE-2026-93204
  • batman-adv: dat: atomically update mac addresses {CVE-2026-93204}
• CVE-2026-90293
  • IB/isert: post the full-feature receive buffers after session registration {CVE-2026-90293}
• CVE-2026-90207
  • ALSA: seq: midi: Serialize input teardown with event_input {CVE-2026-90207}
• CVE-2026-93051
  • misc: ad525x_dpot: use driver core groups for sysfs files {CVE-2026-93051}
• CVE-2026-90302
  • ocfs2: synchronize heartbeat callbacks with o2net teardown {CVE-2026-90302}
• CVE-2026-90112
  • net: qlcnic: validate unified ROM sections before loading {CVE-2026-90112}
• CVE-2026-90294
  • IB/isert: delay the final Login Response until the session is registered {CVE-2026-90294}
• CVE-2026-53059
  • dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• CVE-2026-89723
  • nilfs2: fix slab-out-of-bounds in nilfs_direct_propagate after truncation {CVE-2026-89723}
• CVE-2026-97938
  • reboot: fix cad_pid use-after-free race {CVE-2026-97938}
• CVE-2026-52955
  • libceph: Fix potential out-of-bounds access in crush_decode() {CVE-2026-52955}
• Miscellaneous upstream changes
  • net: skbuff: propagate shared-frag marker in skb_zerocopy()
• Bump ABI 4.15.0-269

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

• net: skbuff: propagate shared-frag marker in skb_zerocopy()
• net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• ALSA: virtio: reset device before deleting virtqueues {CVE-2026-98264}
• ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output() {CVE-2026-90033}
• ALSA: usb-audio: Fix DMA buffer out-of-bounds write when fill_max is set {CVE-2026-74498}
• ALSA: caiaq: Fix potential double-free at error path {CVE-2026-98066}
• ASoC: Intel: avs: Disable periods-elapsed work when closing PCM {CVE-2025-40344}
• ALSA: timer: drain a slave's callback before its master detaches it {CVE-2026-68201}
• ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams {CVE-2026-53242}
• ALSA: seq: midi: Serialize output teardown with event_input {CVE-2026-74387}
• security/keys: fix missed RCU read section on lookup {CVE-2026-64015}
• SUNRPC: harden gss_krb5_unwrap_v2 against short tokens {CVE-2026-89542}
• sctp: fix err_chunk memory leaks in INIT handling {CVE-2026-72413}
• netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace() {CVE-2026-98077}
• netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() {CVE-2026-74569}
• mm/hugetlb: fix list corruption in allocate_file_region_entries() {CVE-2026-74518}
• rcu: Fix rcu_read_unlock() deadloop due to softirq {CVE-2026-45957}
• bpf: Fix potential UAF in bpf_netns_link_update_prog {CVE-2026-90393}
• bpf: Fix use-after-free in offloaded map/prog info fill {CVE-2026-53089}
• NFSv4.2: fix LAYOUTSTATS send buffer exhaustion {CVE-2026-90103}
• uio: Fix stale info pointer in failed registration path {CVE-2026-93054}
• tty: clear cdev pointer after cdev_add() failure {CVE-2026-90334}
• tty: skip cdev_del() when no cdev is registered {CVE-2026-90335}
• scsi: qla2xxx: Avoid double completion in async IOCB timeout {CVE-2026-89847}
• scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue {CVE-2025-37861}
• scsi: csiostor: Fix dereference of null pointer rn {CVE-2026-45857}
• scsi: scsi_debug: Fix REPORT ZONES alloc_len underflow OOB write {CVE-2026-74470}
• wifi: brcmsmac: fix UAF in brcms_free_timer() {CVE-2026-98196}
• wifi: mwifiex: validate scan response extents {CVE-2026-98185}
• wifi: mt76: mt76x02: do not WARN on invalid rx descriptor length {CVE-2026-90382}
• wifi: iwlwifi: mvm: add a check on the tid coming from the firmware {CVE-2026-93791}
• wifi: ath9k: fix OOB access from firmware tx status queue ID {CVE-2026-74408}
• net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow {CVE-2026-98025}
• net: thunderbolt: Fix frags[] overflow by bounding frame_count {CVE-2026-72157}
• net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put {CVE-2026-98015}
• net: stmmac: xgmac2: disable RBUE in default RX interrupt mask {CVE-2026-93830}
• net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list {CVE-2026-53230}
• xen/netfront: drop RX packets with a short Ethernet header {CVE-2026-98375}
• veth: fix NAPI leak in XDP enable error path {CVE-2026-80613}
• RDMA/rxe: Fix double free in rxe_srq_from_init {CVE-2026-45852}
• RDMA/iwcm: Fix workqueue list corruption by removing work_list {CVE-2026-45898}
• ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control {CVE-2026-72261}
• svcrdma: Fix offset arithmetic in read_chunk_range {CVE-2026-89533}
• SUNRPC: svcauth_gss: enforce krb5 token minimum length {CVE-2026-89550}
• xprtrdma: Fix ep kref imbalance on ADDR_CHANGE {CVE-2026-72469}
• sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START {CVE-2026-98130}
• sctp: drop a chunk if its transport was removed {CVE-2026-89478}
• sctp: prevent peer transport count overflow {CVE-2026-74469}
• sctp: validate embedded address parameter length {CVE-2026-74287}
• sctp: revalidate list cursor after…

• Bump kernel ABI to 31: ship the ELS kernel as 4.19.0-31-*, distinct from the prior 4.19.0-30.
• CVE-2024-53150
  • ALSA: usb-audio: Fix out of bounds reads when finding clock sources {CVE-2024-53150}
• CVE-2026-43284
  • xfrm: esp: avoid in-place decrypt on shared skb frags {CVE-2026-43284}
• CVE-2026-43503
  • net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• CVE-2026-46113
  • KVM: x86: Fix shadow paging use-after-free due to unexpected GFN/role {CVE-2026-46113}
• CVE-2026-46300
  • net: skbuff: preserve shared-frag marker during coalescing {CVE-2026-46300}
• CVE-2026-46331
  • net/sched: fix pedit partial COW leading to page cache corruption {CVE-2026-46331}
• CVE-2026-74480
  • net: bridge: stop fast-leave after deleting a port group {CVE-2026-74480}
• CVE-2026-74581
  • net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• CVE-2026-80714
  • ipvs: do not propagate one-packet flag to synced conns {CVE-2026-80714}
• Miscellaneous upstream changes
  • net: skbuff: propagate shared-frag marker in skb_zerocopy()

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 6.6.141 fixes vulnerabilities. The kmod-virtualbox & kmod-xtables-addons packages have been updated to work with this new kernel.

Vanilla upstream kernel version 6.6.141 fixes vulnerabilities. For information about the vulnerabilities see the links.

These are all security issues fixed in the kernel-devel-7.0.11-1.1 package on the GA media of openSUSE Tumbleweed.