CVE-2025-68207 drm/xe/guc: Synchronize Dead CT worker with unbind
A use-after-free vulnerability in the Linux kernel's Xe GPU driver allows attackers to cause denial of service or execute code during device unbinding.
- 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-2025-68207?
CVE-2025-68207 is a high-severity use after free vulnerability in Linux, published on 16 Dec 2025. 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/xe/guc: Synchronize Dead CT worker with unbind
Cancel and wait for any Dead CT worker to complete before continuing with device unbinding. Else the worker will end up using resources freed by the undind operation.
(cherry picked from commit 492671339114e376aaa38626d637a2751cdef263)
Which versions are affected by CVE-2025-68207?
How do I fix CVE-2025-68207?
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-2025-68207 being exploited?
There is no known exploitation of CVE-2025-68207 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-68207, DEBIAN-CVE-2025-68207, GHSA-gpjr-mmqq-6x4g, UBUNTU-CVE-2025-68207.