In the Linux kernel, the following vulnerability has been resolved:
drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU
Setting context engine slot N into I915_ENGINE_CLASS_INVALID / I915_ENGINE_CLASS_INVALID_NONE and attempting to apply I915_CONTEXT_PARAM_SSEU to the same slot N will deref NULL. Fix that.
Discovered using AI-assisted static analysis confirmed by Intel Product Security.
(cherry picked from commit 36eda5b5c2d40da41cc0a5403c26986237cf9e87)
References
- https://git.kernel.org/stable/c/2b56757a9a7456825eb668fde92299e01c5e2721
- https://git.kernel.org/stable/c/726f27bca93e6c83b263542669132ee1d0eb693e
- https://git.kernel.org/stable/c/97f236379f06a5082d37c6a764edd56bb58a94cd
- https://git.kernel.org/stable/c/9923c223d38fcd9602f41cc31d480e5299d9a38e
- https://git.kernel.org/stable/c/edd2edaca52ada833c341c8b264aaea9dd93369c