# apparmor: fix deadlock in complain-mode change_hat

CVE record · `CVE-2026-90179`

- **Identifiers:** `CVE-2026-90179`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 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: `9735e300a1c9259bfe4dc5ecdba472bb25574e8a to before fb8ac089815dc192d891294cf0ffeeafd910136a` (git)
  - affected: `5acb878db41328dae4d3249bc87b9ee4f290a663 to before 5f1fedccf3f7add5e2a1205ac4938fa3893c5874` (git)
  - affected: `6446dbe02f4a3592bf062b4d12105927993086af to before 91fce09d89b2d397996226216820f0e8b8149e22` (git)
  - affected: `b427061ca498309bf581bb6f8df4ffcfe4c772cd to before 00cce5e457cb690a3b3b3d334e76e71049ec8ae5` (git)
  - affected: `32e92764d6f8d251c1bca62be33793287b453a81 to before 072fb5aeec2eac7d445bf28c7119a1d6f6a2e333` (git)
  - affected: `32e92764d6f8d251c1bca62be33793287b453a81 to before 4ec11f14d1d6fdda787d991b142537be7841d395` (git)
  - affected: `862ae1fcc78aea9acab2ac87cccf6431f4682b8e` (git)
  - affected: `65f95c1e7ce70bf339504e22473879e02026cfc4` (git)
  - affected: `67ee65ec1a3eebdde76ccaa664d20dcf5b125a2f` (git)
  - affected: `6.1.178 to before 6.1.191` (semver)
  - affected: `6.6.145 to before 6.6.160` (semver)
  - affected: `6.12.97 to before 6.12.114` (semver)
  - and 4 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `7.2`
  - unaffected: `before 7.2` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:** 0.0022, the 11th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90179](https://www.cve.org/CVERecord?id=CVE-2026-90179)
- [NVD: CVE-2026-90179](https://nvd.nist.gov/vuln/detail/CVE-2026-90179)

### References from the CNA

- <https://git.kernel.org/stable/c/fb8ac089815dc192d891294cf0ffeeafd910136a>
- <https://git.kernel.org/stable/c/5f1fedccf3f7add5e2a1205ac4938fa3893c5874>
- <https://git.kernel.org/stable/c/91fce09d89b2d397996226216820f0e8b8149e22>
- <https://git.kernel.org/stable/c/00cce5e457cb690a3b3b3d334e76e71049ec8ae5>
- <https://git.kernel.org/stable/c/072fb5aeec2eac7d445bf28c7119a1d6f6a2e333>
- <https://git.kernel.org/stable/c/4ec11f14d1d6fdda787d991b142537be7841d395>

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-2026-90179>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90179/>. Everything for agents: <https://agentprime.io/llms.txt>.