CVE-2026-31547

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/xe: Fix missing runtime PM reference in ccs_mode_store<br /> <br /> ccs_mode_store() calls xe_gt_reset() which internally invokes<br /> xe_pm_runtime_get_noresume(). That function requires the caller<br /> to already hold an outer runtime PM reference and warns if none<br /> is held:<br /> <br /> [46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection<br /> [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at<br /> xe_pm_runtime_get_noresume+0x8b/0xc0<br /> <br /> Fix this by protecting xe_gt_reset() with the scope-based<br /> guard(xe_pm_runtime)(xe), which is the preferred form when<br /> the reference lifetime matches a single scope.<br /> <br /> v2:<br /> - Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)<br /> - Update commit message accordingly<br /> <br /> (cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)