# drm/vmwgfx: use check_add_overflow for shader size+offset bound

CVE record · `CVE-2026-80887`

- **Identifiers:** `CVE-2026-80887`
- **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:** 6 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 17:11 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: `668b206601c5f5063e03b76784a0d3024fa2b249 to before 1bbe7751f5ebac383405ef29a66622d65bd505d3` (git)
  - affected: `668b206601c5f5063e03b76784a0d3024fa2b249 to before d3f44438aa805270aaead3b6840ccaea0f4c11f9` (git)
  - affected: `668b206601c5f5063e03b76784a0d3024fa2b249 to before cfd163169af3be56eaef113c680ea251f0d09189` (git)
  - affected: `668b206601c5f5063e03b76784a0d3024fa2b249 to before 5c725901908eb1e52a16fc0e2373cb761df42d21` (git)
  - affected: `668b206601c5f5063e03b76784a0d3024fa2b249 to before 54d56d5b42d2e4c72ba6e365e9774da90698aa22` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.4`
  - unaffected: `before 6.4` (semver)
  - unaffected: `6.6.151 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.103 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.44 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.8 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:** 0.0017, the 6th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 4 Sept 2026, 17:11 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-80887)
- 4 Sept 2026, 18:17 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-80887)

## Sources

- [CVE List: CVE-2026-80887](https://www.cve.org/CVERecord?id=CVE-2026-80887)
- [NVD: CVE-2026-80887](https://nvd.nist.gov/vuln/detail/CVE-2026-80887)

### References from the CNA

- <https://git.kernel.org/stable/c/1bbe7751f5ebac383405ef29a66622d65bd505d3>
- <https://git.kernel.org/stable/c/d3f44438aa805270aaead3b6840ccaea0f4c11f9>
- <https://git.kernel.org/stable/c/cfd163169af3be56eaef113c680ea251f0d09189>
- <https://git.kernel.org/stable/c/5c725901908eb1e52a16fc0e2373cb761df42d21>
- <https://git.kernel.org/stable/c/54d56d5b42d2e4c72ba6e365e9774da90698aa22>

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-2026-80887>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80887/>. Everything for agents: <https://agentprime.io/llms.txt>.