# drm/amdgpu: Fix UVD dpb min size calculation for H264

CVE record · `CVE-2026-80907`

- **Identifiers:** `CVE-2026-80907`
- **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:** 30 Oct 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: `d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before dfd3ccdd77363a3e3e0ea7babd932c3966f0aef8` (git)
  - affected: `d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before fa96c24485942e277483cc70d9551d9e0111d7c5` (git)
  - affected: `d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 33f4ef585368fe93523dca1e5440e006f6e5146e` (git)
  - affected: `d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 38914cb2c6afb5fe00241ea3438e655822196378` (git)
  - affected: `d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before ff4361816b6ba4bd29b548b17d993056a1ae2502` (git)
  - affected: `d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 21a8084cd76223a13493237e04d45f5226d7cee6` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.2`
  - unaffected: `before 4.2` (semver)
  - unaffected: `6.1.191 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

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel amdgpu driver's UVD H.264 decoding is affected from version 4.2 until fixed. The source gives few details on what an attacker needs or can do. Upgrade to 6.1.191, 6.6.153, 6.12.105 or 6.18.46 or later in the matching branch.

Written 12 Nov 2026.

## 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-2026-80907](https://www.cve.org/CVERecord?id=CVE-2026-80907)
- [NVD: CVE-2026-80907](https://nvd.nist.gov/vuln/detail/CVE-2026-80907)

### References from the CNA

- <https://git.kernel.org/stable/c/dfd3ccdd77363a3e3e0ea7babd932c3966f0aef8>
- <https://git.kernel.org/stable/c/fa96c24485942e277483cc70d9551d9e0111d7c5>
- <https://git.kernel.org/stable/c/33f4ef585368fe93523dca1e5440e006f6e5146e>
- <https://git.kernel.org/stable/c/38914cb2c6afb5fe00241ea3438e655822196378>
- <https://git.kernel.org/stable/c/ff4361816b6ba4bd29b548b17d993056a1ae2502>
- <https://git.kernel.org/stable/c/21a8084cd76223a13493237e04d45f5226d7cee6>

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-2026-80907>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80907/>. Everything for agents: <https://agentprime.io/llms.txt>.