CVE-2026-23350

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/queue: Call fini on exec queue creation fail

Every call to queue init should have a corresponding fini call. Skipping this would mean skipping removal of the queue from GuC list (which is part of gucid allocation). A damaged queue stored in execqueue_lookup list would lead to invalid memory reference, sooner or later.

Call fini to free guc_id. This must be done before any internal LRCs are freed.

Since the finalization with this extra call became very similar to _xeexecqueuefini(), reuse that. To make this reuse possible, alter xelrcput() so it can survive NULL parameters, like other similar functions.

v2: Reuse xeexecqueuefini(). Make xelrcput() aware of NULLs.

(cherry picked from commit 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)