CVE-2026-68232 drm/gpusvm: Fix MM reference leak in drm_gpusvm_range_evict
A memory reference leak in the Linux kernel GPU SVM driver can lead to resource exhaustion and denial of service.
- 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-2026-68232?
CVE-2026-68232 is a memory corruption vulnerability in Linux, published on 10 Aug 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/gpusvm: Fix MM reference leak in drm_gpusvm_range_evict
If kvmalloc_array() fails in drm_gpusvm_range_evict(), the MM reference acquired earlier is not released, resulting in a reference leak.
Fix this by dropping the MM reference on the kvmalloc_array() failure path.
Which versions are affected by CVE-2026-68232?
How do I fix CVE-2026-68232?
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-2026-68232 being exploited?
There is no known exploitation of CVE-2026-68232 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68232, DEBIAN-CVE-2026-68232, GHSA-65rj-mmxw-37p8, UBUNTU-CVE-2026-68232.