CVE-2026-68243

A flaw was found in the drm/i915/gem component of the Linux kernel. A local attacker could trigger a NULL dereference by setting a context engine slot to an invalid class and then attempting to apply specific parameters to that slot. This could lead to a system crash, resulting in a Denial of Service (DoS).

This issue affects Intel i915 graphics. Setting an invalid engine class then applying I915_CONTEXT_PARAM_SSEU dereferences NULL. Systems without Intel graphics are not affected.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, prevent the i915 module from loading. See https://access.redhat.com/solutions/41278 for instructions.