CVE-2026-68262 drm/imagination: Fix user array stride in pvr_set_uobj_array()
A stride calculation error in the Imagination DRM driver causes memory corruption, potentially allowing local attackers to execute code or escalate privileges.
- 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-2026-68262?
CVE-2026-68262 is a high-severity 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/imagination: Fix user array stride in pvr_set_uobj_array()
pvr_set_uobj_array() copies an array of kernel objects to a userspace array whose element size is described by out->stride. When out->stride is different from the kernel object size, the slow path advances the userspace pointer by the kernel object size and the kernel pointer by the userspace stride.
This reverses the intended layout. For larger userspace strides, later copies read from the wrong kernel addresses. For smaller userspace strides, later copies are written at the wrong userspace offsets. The padding clear is also done only for the first element instead of the padding area for each element.
Advance the userspace pointer by out->stride and the kernel pointer by obj_size, and clear per-element padding while the current userspace pointer is still available.
Which versions are affected by CVE-2026-68262?
How do I fix CVE-2026-68262?
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-2026-68262 being exploited?
There is no known exploitation of CVE-2026-68262 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68262, DEBIAN-CVE-2026-68262, GHSA-8f87-qjgg-4j6v, UBUNTU-CVE-2026-68262.