drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU

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EUVD-2026-55344

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix NULL deref in I915CONTEXTPARAMSSEU Setting context engine slot N into I915ENGINECLASSINVALID / I915ENGINECLASSINVALIDNONE and attempting to apply I915CONTEXTPARAMSSEU to the same slot N will deref NULL. Fix that...

PT-2026-69643

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the drm/i915/gem component. This happens when a context engine slot N is set to I915 ENGINE CLASS INVALID or I915 ENGINE CLASS INVALID NONE, and an...