CVE-2026-68104 drm/amdgpu: invoke pm_genpd_remove() before freeing genpd
A use-after-free vulnerability in the Linux kernel's amdgpu driver allows attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68104?
CVE-2026-68104 is a high-severity use after free vulnerability in Linux, published on 10 Aug 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: invoke pm_genpd_remove() before freeing genpd
Call pm_genpd_remove() to unregister from global list prior to releasing acp_genpd memory, and clear the pointer after free.
(cherry picked from commit cd8650d7a91ee8b768e202354672553faa5cc1f2)
Weakness: CWE-416
Which versions are affected by CVE-2026-68104?
How do I fix CVE-2026-68104?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-68104 being exploited?
There is no known exploitation of CVE-2026-68104 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68104, DEBIAN-CVE-2026-68104, GHSA-2mjh-222w-43qx, UBUNTU-CVE-2026-68104.