In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: revert commit_mutex usage in reset path It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same time. Previous patches made it safe to run individual reset handlers concurrently so commit_mutex is no longer required to prevent this.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc Patch
- https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 5
- StatusUndergoing Analysis → PublishedNVD modified 2026-10-21 12:40
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-21 13:18
- StatusPublished → Undergoing AnalysisNVD modified 2026-10-21 13:18
- CVSS5.5 (v3.1, CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)NVD modified 2026-10-21 13:18
- First seenunscored · linuxNVD modified 2026-10-21 12:40
Affected (CPE criteria) 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References 5
- https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc Patch
- https://git.kernel.org/stable/c/b0dd8637fbaae8405eb9e8de741f9ce7c9667b6f
- https://git.kernel.org/stable/c/d66bedfe97a2bc321fa8118e669aae988038f729
- https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7 Patch
- https://git.kernel.org/stable/c/f6410d18c1e2da325df02be989d5bca5ed38b086