CVE-2026-68244 drm/i915/gem: Do not leak siblings[] on proto context error
A local attacker can trigger a memory leak in the i915 graphics driver during context creation, potentially leading to resource exhaustion and denial of service.
- 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-2026-68244?
CVE-2026-68244 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/i915/gem: Do not leak siblings[] on proto context error
After a successful BALANCE/PARALLEL_SUBMIT extension on context creation, error during processing of next user extension leaks the siblings[] array. Fix that.
Discovered using AI-assisted static analysis confirmed by Intel Product Security.
(cherry picked from commit aa65e0a4b51b3b54b53e4142aaa2d997aa1061ff)
Which versions are affected by CVE-2026-68244?
How do I fix CVE-2026-68244?
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-2026-68244 being exploited?
There is no known exploitation of CVE-2026-68244 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68244, DEBIAN-CVE-2026-68244, GHSA-rpxf-qf6x-f282, UBUNTU-CVE-2026-68244.