CVE-2025-68326

The vulnerability is in the Linux kernel DRM XE GUC path. A missing stack_depot_init() call when CONFIG_DRM_XE_DEBUG_GUC is enabled caused NULL pointer dereferences in stack_depot_save_flags, triggering a crash on drm_sched_run_job_work. The issue was fixed by cherry-picking commit 64fdf496a6929a...