CVE-2025-68326 drm/xe/guc: Fix stack_depot usage
A missing initialization in the Linux kernel Xe GPU driver causes a null pointer dereference and system crash when debug mode is enabled.
- 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-2025-68326?
CVE-2025-68326 is a vulnerability in Linux, published on 22 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: Fix stack_depot usage
Add missing stack_depot_init() call when CONFIG_DRM_XE_DEBUG_GUC is enabled to fix the following call stack:
[] BUG: kernel NULL pointer dereference, address: 0000000000000000 [] Workqueue: drm_sched_run_job_work [gpu_sched] [] RIP: 0010:stack_depot_save_flags+0x172/0x870 [] Call Trace: [] <TASK> [] fast_req_track+0x58/0xb0 [xe]
(cherry picked from commit 64fdf496a6929a0a194387d2bb5efaf5da2b542f)
Which versions are affected by CVE-2025-68326?
How do I fix CVE-2025-68326?
Apply the vendor's patch.
Is CVE-2025-68326 being exploited?
There is no known exploitation of CVE-2025-68326 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-68326, DEBIAN-CVE-2025-68326, GHSA-7gr6-fx87-x7p2, UBUNTU-CVE-2025-68326.