CVE-2026-72327 drm/v3d: Reject invalid indirect BO handle in indirect CSD setup
A local attacker can cause a kernel crash by submitting an invalid buffer object handle to the V3D GPU driver.
- 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-2026-72327?
CVE-2026-72327 is a vulnerability in Linux, published on 15 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/v3d: Reject invalid indirect BO handle in indirect CSD setup
v3d_get_cpu_indirect_csd_params() looks up the indirect buffer object from a userspace-supplied handle but never checks the result. A bogus or stale handle makes drm_gem_object_lookup() return NULL, which is then stored in info->indirect and only dereferenced later when the indirect CSD job runs, turning a userspace mistake into a NULL pointer dereference in the kernel.
Bail out with -ENOENT as soon as the lookup fails, so the bad handle is rejected at submission time.
Which versions are affected by CVE-2026-72327?
How do I fix CVE-2026-72327?
Apply the vendor's patch.
Is CVE-2026-72327 being exploited?
There is no known exploitation of CVE-2026-72327 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72327, DEBIAN-CVE-2026-72327, GHSA-xpvh-xvq6-7mjq, UBUNTU-CVE-2026-72327.