CVE-2026-80907 drm/amdgpu: Fix UVD dpb min size calculation for H264
A flaw in the AMD GPU kernel driver's H264 decoding logic allows attackers to cause a denial of service via integer overflow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-80907?
CVE-2026-80907 is a vulnerability in Linux, published on 4 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix UVD dpb min size calculation for H264
This should use actual number of references from the decode message, instead of maximum derived from level.
(cherry picked from commit 64b525edb7e7bdfcdc77883c5e413804e2396856)
Which versions are affected by CVE-2026-80907?
How do I fix CVE-2026-80907?
Apply the vendor's patch.
Is CVE-2026-80907 being exploited?
There is no known exploitation of CVE-2026-80907 in the wild and no public exploit code.
Sources
Also known as AZL-99648, BELL-CVE-2026-80907, DEBIAN-CVE-2026-80907, GHSA-4gg8-7fqx-cgg8, UBUNTU-CVE-2026-80907.