# drm/imagination: avoid deadlock on fence release

CVE record · `CVE-2025-21911`

- **Identifiers:** `CVE-2025-21911`
- **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:** 1 Apr 2025
- **Updated:** 11 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 1 Apr 2025, 15:40 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: `eaf01ee5ba28b97f96a3d3eec4c5fbfb37ee4cde to before d993ae7360923efd6ade43a32043459a121c28c1` (git)
  - affected: `eaf01ee5ba28b97f96a3d3eec4c5fbfb37ee4cde to before 9bd8b8d34cf4efba18766d64f817c819ed1bbde7` (git)
  - affected: `eaf01ee5ba28b97f96a3d3eec4c5fbfb37ee4cde to before df1a1ed5e1bdd9cc13148e0e5549f5ebcf76cf13` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.8`
  - unaffected: `before 6.8` (semver)
  - unaffected: `6.12.19 to 6.12.*, inclusive` (semver)
  - unaffected: `6.13.7 to 6.13.*, inclusive` (semver)
  - unaffected: `6.14 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:** 0.0015, the 4th 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 1 Apr 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2025-21911](https://www.cve.org/CVERecord?id=CVE-2025-21911)
- [NVD: CVE-2025-21911](https://nvd.nist.gov/vuln/detail/CVE-2025-21911)

### References from the CNA

- <https://git.kernel.org/stable/c/d993ae7360923efd6ade43a32043459a121c28c1>
- <https://git.kernel.org/stable/c/9bd8b8d34cf4efba18766d64f817c819ed1bbde7>
- <https://git.kernel.org/stable/c/df1a1ed5e1bdd9cc13148e0e5549f5ebcf76cf13>

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-2025-21911>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2025-21911/>. Everything for agents: <https://agentprime.io/llms.txt>.