Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject duplicate device on updates A chain/flowtable update with duplicated devices in the same batch is possible. Unfortunately, netdev event path only removes the first device that is found, leaving unregistered the hook of the duplicated device. Check if a duplicated device exists in the transaction batch, bail out with EEXIST in such case. WARNING is hit when unregistering the hook: [49042.221275] WARNING: CPU: 4 PID: 8425 at net/netfilter/core.c:340 nf_hook_entry_head+0xaa/0x150 [49042.221375] CPU: 4 UID: 0 PID: 8425 Comm: nft Tainted: G S 6.16.0+ #170 PREEMPT(full) [...] [49042.221382] RIP: 0010:nf_hook_entry_head+0xaa/0x150
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < 0521e694d5b80899fba8695881a6349f9bc538cbaffected78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < 4681960bc0f4f8bcc782cbf2fd205f48ad314dfdaffected78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < 4ce2a0c3b8497a66cfc25fc7ca3d087258a785d2affected78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < 3f358a66a04513311668ea4b40f5064e253d8386affected78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < cf23d531a9d496863aa4c5a0e2f71f0a23f3df3caffected78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < d7615bde541f16517d6790412da6ec46fa8a4c1faffected78d9f48f7f44431a25da2b46b3a8812f6ff2b981 to < cf5fb87fcdaaaafec55dcc0dc5a9e15ead343973affected
Linux Linux
Default version status: affected
5.8affected0 to < 5.8unaffected5.10.247 to ≤ 5.10.*unaffected5.15.197 to ≤ 5.15.*unaffected6.1.159 to ≤ 6.1.*unaffected6.6.117 to ≤ 6.6.*unaffected6.12.59 to ≤ 6.12.*unaffected6.16.2 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0521e694d5b80899fba8695881a6349f9bc538cb ↗
- https://git.kernel.org/stable/c/4681960bc0f4f8bcc782cbf2fd205f48ad314dfd ↗
- https://git.kernel.org/stable/c/4ce2a0c3b8497a66cfc25fc7ca3d087258a785d2 ↗
- https://git.kernel.org/stable/c/3f358a66a04513311668ea4b40f5064e253d8386 ↗
- https://git.kernel.org/stable/c/cf23d531a9d496863aa4c5a0e2f71f0a23f3df3c ↗
- https://git.kernel.org/stable/c/d7615bde541f16517d6790412da6ec46fa8a4c1f ↗
- https://git.kernel.org/stable/c/cf5fb87fcdaaaafec55dcc0dc5a9e15ead343973 ↗