# xfrm: avoid lock inversion in nat keepalive work

CVE record · `CVE-2026-80845`

- **Identifiers:** `CVE-2026-80845`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 4 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:54 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: `f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae to before ea09210462316e5235a25eccb11ad0708d86615e` (git)
  - affected: `f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae to before 5c86c895d1cac81a71ead3005084c6265cf6a7a5` (git)
  - affected: `f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae to before 89ef3a2e1e4682ab82b0455ce113f8c39fb9e50d` (git)
  - affected: `f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae to before a9fa05b7a1246797748d15771052639e0d3cabf1` (git)
  - affected: `f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae to before 763fe700b7c58ad64fe5202c5638848244dd4127` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.11`
  - unaffected: `before 6.11` (semver)
  - unaffected: `6.12.108 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.49 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.13 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2.3 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 14 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 4 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80845](https://www.cve.org/CVERecord?id=CVE-2026-80845)
- [NVD: CVE-2026-80845](https://nvd.nist.gov/vuln/detail/CVE-2026-80845)

### References from the CNA

- <https://git.kernel.org/stable/c/ea09210462316e5235a25eccb11ad0708d86615e>
- <https://git.kernel.org/stable/c/5c86c895d1cac81a71ead3005084c6265cf6a7a5>
- <https://git.kernel.org/stable/c/89ef3a2e1e4682ab82b0455ce113f8c39fb9e50d>
- <https://git.kernel.org/stable/c/a9fa05b7a1246797748d15771052639e0d3cabf1>
- <https://git.kernel.org/stable/c/763fe700b7c58ad64fe5202c5638848244dd4127>

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-2026-80845>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80845/>. Everything for agents: <https://agentprime.io/llms.txt>.