CVE-2025-71083 drm/ttm: Avoid NULL pointer deref for evicted BOs
A NULL pointer dereference in the Linux kernel's DRM TTM subsystem can cause a denial of service when devcoredump processes evicted buffer objects.
- 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-2025-71083?
CVE-2025-71083 is a medium-severity vulnerability in Linux kernel, published on 13 Jan 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/ttm: Avoid NULL pointer deref for evicted BOs
It is possible for a BO to exist that is not currently associated with a resource, e.g. because it has been evicted.
When devcoredump tries to read the contents of all BOs for dumping, we need to expect this as well -- in this case, ENODATA is recorded instead of the buffer contents.
Weakness: CWE-476
Which versions are affected by CVE-2025-71083?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-71083?
Apply the vendor's patch.
Is CVE-2025-71083 being exploited?
There is no known exploitation of CVE-2025-71083 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-74369, BELL-CVE-2025-71083, DEBIAN-CVE-2025-71083, GHSA-3772-x29g-83r5, ROOT-OS-DEBIAN-11-CVE-2025-71083, ROOT-OS-DEBIAN-12-CVE-2025-71083 and 4 more.