Bug 2309841 (CVE-2024-44978)

Summary:	CVE-2024-44978 kernel: drm/xe: Free job before xe_exec_queue_put
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2309937
Bug Blocks:

Description OSIDB Bzimport 2024-09-04 20:21:27 UTC

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

drm/xe: Free job before xe_exec_queue_put

Free job depends on job->vm being valid, the last xe_exec_queue_put can
destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.

(cherry picked from commit 32a42c93b74c8ca6d0915ea3eba21bceff53042f)

Comment 1 Robb Gatica 2024-09-04 22:11:38 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024090443-CVE-2024-44978-096b@gregkh/T