# selinux: reject an unclaimed class value in security_get_classes()

CVE record · `CVE-2026-80912`

- **Identifiers:** `CVE-2026-80912`
- **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:** 14 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 17:19 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: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before d2e7f7035d6f407119ba5467f7218cc4370844fc` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before f38a71868888285efc9c0ab5b032e23919c5a0a1` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before 3480c081c23d559fd9a6921b76955664f2e95153` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before e0285bb152211c00900136b66d4b420c14a59094` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before 099869e9343a5f8c22b58497f074b34f63cbf856` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before 841aea4d5a25e16273d04cd07a74142b4687e03b` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before d8a10899ea3c84b80de72ca8ee9039e9a5156c9a` (git)
  - affected: `55fcf09b3fe4325c9395ebbb0322a547a157ebc7 to before 22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.23`
  - unaffected: `before 2.6.23` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.153 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.105 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.46 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.10 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2 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:** 0.0016, the 5th 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-2026-80912](https://www.cve.org/CVERecord?id=CVE-2026-80912)
- [NVD: CVE-2026-80912](https://nvd.nist.gov/vuln/detail/CVE-2026-80912)

### References from the CNA

- <https://git.kernel.org/stable/c/d2e7f7035d6f407119ba5467f7218cc4370844fc>
- <https://git.kernel.org/stable/c/f38a71868888285efc9c0ab5b032e23919c5a0a1>
- <https://git.kernel.org/stable/c/3480c081c23d559fd9a6921b76955664f2e95153>
- <https://git.kernel.org/stable/c/e0285bb152211c00900136b66d4b420c14a59094>
- <https://git.kernel.org/stable/c/099869e9343a5f8c22b58497f074b34f63cbf856>
- <https://git.kernel.org/stable/c/841aea4d5a25e16273d04cd07a74142b4687e03b>
- <https://git.kernel.org/stable/c/d8a10899ea3c84b80de72ca8ee9039e9a5156c9a>
- <https://git.kernel.org/stable/c/22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd>

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-2026-80912>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-80912/>. Everything for agents: <https://agentprime.io/llms.txt>.