CVE-2026-52920 Details
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.
A vulnerability in the Linux kernel's netfilter component, specifically within the xt_policy module, has been addressed. The issue arose in strict mode inbound policy matching, where the match_policy_in() function processed sec_path entries in reverse order. However, strict policy matching requires alignment with the rule layout. The vulnerability has been fixed by adjusting the policy matching to ensure consistent alignment with multi-element inbound rules.
Users can update to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for updating the kernel can be found in the official Linux documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/392cc1d8408b5665215c1e9290bbf0f92339b043 | kernel.org | Patch |
| https://git.kernel.org/stable/c/4b2b4d7d4e203c92db8966b163edfacb1f0e1e29 | kernel.org | Patch |
| https://git.kernel.org/stable/c/82664d0f1ba25e4f9a71994954abae24c60f4067 | kernel.org | Patch |
| https://git.kernel.org/stable/c/938867e870fb5471bb16f442aeac81326e05bf65 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/eb323f7b82d2e2f638de0cc2a177803eb20e0707 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f98b7f85e04b40e28b08c461ded0cc79f14f5509 | kernel.org | Patch |
| https://git.kernel.org/stable/c/fc1c518bb1f054831ecabb32da9b8e1dff9699c6 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.17, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.141 >= 6.7, < 6.12.91 >= 6.13, < 6.18.33 >= 6.19, < 7.0.10 7.1 rc1 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 28, 2026 | CVE Modified | kernel.org |
| Jun 24, 2026 | New CVE Received | kernel.org |