PT-2026-51713 · Linux · Linux

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-52920

Mitre

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.

Related Identifiers

CVE-2026-52920

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-52920 · Security Note
• https://git.kernel.org/stable/c/f98b7f85e04b40e28b08c461ded0cc79f14f5509 · Note
• https://git.kernel.org/stable/c/82664d0f1ba25e4f9a71994954abae24c60f4067 · Note
• https://git.kernel.org/stable/c/b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9 · Note
• https://git.kernel.org/stable/c/eb323f7b82d2e2f638de0cc2a177803eb20e0707 · Note
• https://git.kernel.org/stable/c/392cc1d8408b5665215c1e9290bbf0f92339b043 · Note
• https://git.kernel.org/stable/c/fc1c518bb1f054831ecabb32da9b8e1dff9699c6 · Note
• https://git.kernel.org/stable/c/938867e870fb5471bb16f442aeac81326e05bf65 · Note
• https://git.kernel.org/stable/c/4b2b4d7d4e203c92db8966b163edfacb1f0e1e29 · Note