CVE-2026-52920
netfilter: xt_policy: fix strict mode inbound policy matching
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Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_policy: fix strict mode inbound policy matching match_policy_in() walks sec_path entries from the last transform to the first one, but strict policy matching needs to consume info->pol[] in the same forward order as the rule layout. Derive the strict-match policy position from the number of transforms already consumed so that multi-element inbound rules are matched consistently.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/eb323f7b82d2e2f638de0cc2a177803eb20e0707
- https://git.kernel.org/stable/c/fc1c518bb1f054831ecabb32da9b8e1dff9699c6
- https://git.kernel.org/stable/c/f98b7f85e04b40e28b08c461ded0cc79f14f5509
- https://git.kernel.org/stable/c/82664d0f1ba25e4f9a71994954abae24c60f4067
- https://git.kernel.org/stable/c/b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9
References (8)
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