# afs: Fix merge preference rule failure condition

CVE record · `CVE-2025-21672`

- **Identifiers:** `CVE-2025-21672`
- **State:** Confirmed
- **Severity:** CVSS 5.5 Medium
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-667](https://cwe.mitre.org/data/definitions/667.html)
- **Tags:** [CWE-667](https://agentprime.io/advisories/tag/cwe-667.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 31 Jan 2025
- **Updated:** 11 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 31 Jan 2025, 11:25 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `f94f70d39cc2d54079ebae934862198516315db2 to before 22be1d90a6211c88dd093b25d1f3aa974d0d9f9d` (git)
  - affected: `f94f70d39cc2d54079ebae934862198516315db2 to before 17a4fde81d3a7478d97d15304a6d61094a10c2e3` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.8`
  - unaffected: `before 6.8` (semver)
  - unaffected: `6.12.11 to 6.12.*, inclusive` (semver)
  - unaffected: `6.13 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 5.5 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0014, the 3rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 31 Jan 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2025-21672](https://www.cve.org/CVERecord?id=CVE-2025-21672)
- [NVD: CVE-2025-21672](https://nvd.nist.gov/vuln/detail/CVE-2025-21672)

### References from the CNA

- <https://git.kernel.org/stable/c/22be1d90a6211c88dd093b25d1f3aa974d0d9f9d>
- <https://git.kernel.org/stable/c/17a4fde81d3a7478d97d15304a6d61094a10c2e3>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2025-21672>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2025-21672/>. Everything for agents: <https://agentprime.io/llms.txt>.