CVE-2026-68242 drm/i915/gt: Fix NULL deref on sched_engine alloc failure
A local attacker can trigger a kernel crash via a NULL pointer dereference in the i915 graphics driver when scheduler engine allocation fails.
- 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-2026-68242?
CVE-2026-68242 is a 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/i915/gt: Fix NULL deref on sched_engine alloc failure
Avoid using intel_context_put() before intel_context_init() in execlists_create_virtual() as the kref_put() inside would lead to NULL deref on the IOCTL path when sched_engine allocation fails.
Discovered using AI-assisted static analysis confirmed by Intel Product Security.
(cherry picked from commit 4f2a12f2d50e9f48227656e4dcbd6423506be31d)
Which versions are affected by CVE-2026-68242?
How do I fix CVE-2026-68242?
Apply the vendor's patch.
Is CVE-2026-68242 being exploited?
There is no known exploitation of CVE-2026-68242 in the wild and no public exploit code.
Sources
Also known as AZL-95201, BELL-CVE-2026-68242, DEBIAN-CVE-2026-68242, GHSA-4cj7-cqhw-3cg9, UBUNTU-CVE-2026-68242.