# drm/gud: fix out-of-bounds write in gud_plane_atomic_check()

CVE record · `CVE-2026-98181`

- **Identifiers:** `CVE-2026-98181`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:44 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: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before ee04903fe6a098160d20dde4fc5af4cb42846735` (git)
  - affected: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before 4153a9e008f2512bd3cf90a319436865847369b9` (git)
  - affected: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before 5f5e565410b4987e9663f599f9ab0c350f8338d4` (git)
  - affected: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before 7e630edb22088df7aa0d55b02237a71e4c9a523d` (git)
  - affected: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before 2c92af27ad23e2fbc0367b11a9027d36d94ef4b3` (git)
  - affected: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before ea57100955c1c2a525ba1a98c18d9a05b25aeedb` (git)
  - affected: `40e1a70b4aedf2859a1829991b48ef0ebe650bf2 to before 59ced288fcba9e91bd38e61a972ad782c4edb7d0` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.13`
  - unaffected: `before 5.13` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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 10 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98181](https://www.cve.org/CVERecord?id=CVE-2026-98181)
- [NVD: CVE-2026-98181](https://nvd.nist.gov/vuln/detail/CVE-2026-98181)

### References from the CNA

- <https://git.kernel.org/stable/c/ee04903fe6a098160d20dde4fc5af4cb42846735>
- <https://git.kernel.org/stable/c/4153a9e008f2512bd3cf90a319436865847369b9>
- <https://git.kernel.org/stable/c/5f5e565410b4987e9663f599f9ab0c350f8338d4>
- <https://git.kernel.org/stable/c/7e630edb22088df7aa0d55b02237a71e4c9a523d>
- <https://git.kernel.org/stable/c/2c92af27ad23e2fbc0367b11a9027d36d94ef4b3>
- <https://git.kernel.org/stable/c/ea57100955c1c2a525ba1a98c18d9a05b25aeedb>
- <https://git.kernel.org/stable/c/59ced288fcba9e91bd38e61a972ad782c4edb7d0>

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-2026-98181>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98181/>. Everything for agents: <https://agentprime.io/llms.txt>.