CVE-2025-40069 drm/msm: Fix obj leak in VM_BIND error path
A memory leak in the Linux kernel's DRM MSM driver allows attackers to cause a denial of service via VM_BIND error paths.
- 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-2025-40069?
CVE-2025-40069 is a high-severity memory corruption vulnerability in Linux, published on 28 Oct 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/msm: Fix obj leak in VM_BIND error path
If we fail a handle-lookup part way thru, we need to drop the already obtained obj references.
Patchwork: https://patchwork.freedesktop.org/patch/669784/
Which versions are affected by CVE-2025-40069?
How do I fix CVE-2025-40069?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-40069 being exploited?
There is no known exploitation of CVE-2025-40069 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-40069, GHSA-2w39-4r85-2c9m, UBUNTU-CVE-2025-40069.