CVE 7.8 HIGH

drm/xe/queue: Call fini on exec queue creation fail_CVE-2026-23350

7.8 / 10
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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 guc_id allocation). A damaged queue stored in
exec_queue_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
__xe_exec_queue_fini(), reuse that. To make this reuse possible,
alter xe_lrc_put() so it can survive NULL parameters, like other
similar functions.

v2: Reuse _xe_exec_queue_fini(). Make xe_lrc_put() aware of NULLs.

(cherry picked from commit 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)

Basic Information

ID CVE-2026-23350
Source Linux
Published Mar 25, 2026 at 10:27
Modified Apr 2, 2026 at 14:44

Affected Product

Vendor Linux
Product Linux
Version 3c1fa4aa60b146d1fa73b2b87064303f8e4b7952
Affected Versions Linux Linux 3c1fa4aa60b146d1fa73b2b87064303f8e4b7952
Linux Linux 3c1fa4aa60b146d1fa73b2b87064303f8e4b7952
Linux Linux 6.19

References

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