CVE-2025-40360 drm/sysfb: Do not dereference NULL pointer in plane reset
A NULL pointer dereference in the Linux kernel's DRM subsystem allows local attackers to cause a system crash.
- 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-2025-40360?
CVE-2025-40360 is a 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/sysfb: Do not dereference NULL pointer in plane reset
The plane state in __drm_gem_reset_shadow_plane() can be NULL. Do not deref that pointer, but forward NULL to the other plane-reset helpers. Clears plane->state to NULL.
v2: - fix typo in commit description (Javier)
Which versions are affected by CVE-2025-40360?
How do I fix CVE-2025-40360?
Apply the vendor's patch.
Is CVE-2025-40360 being exploited?
There is no known exploitation of CVE-2025-40360 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-40360, DEBIAN-CVE-2025-40360, GHSA-8r48-79mj-pq82, ROOT-OS-DEBIAN-12-CVE-2025-40360, ROOT-OS-DEBIAN-13-CVE-2025-40360, ROOT-OS-UBUNTU-2204-CVE-2025-40360 and 2 more.