Bug 2265796 (CVE-2023-52461)

Summary:	CVE-2023-52461 kernel: drm/sched: Fix bounds limiting when given a malformed entity
Product:	[Other] Security Response	Reporter:	Patrick Del Bello <pdelbell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, ndegraef, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.8-rc1	Doc Type:	If docs needed, set a value
Doc Text:	If we're given a malformed entity in drm_sched_entity_init()--shouldn't happen, but we verify--with out-of-bounds priority value, we set it to an allowed value. Fix the expression which sets this limit.	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:	2265808
Bug Blocks:	2265790

Description Patrick Del Bello 2024-02-24 11:20:09 UTC

If we're given a malformed entity in drm_sched_entity_init()--shouldn't happen, but we verify--with out-of-bounds priority value, we set it to an
allowed value. Fix the expression which sets this limit.

Comment 1 Patrick Del Bello 2024-02-24 11:25:20 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2265808]

Comment 3 Justin M. Forbes 2024-02-27 00:08:10 UTC

	Issue introduced in 6.7 with commit 56e449603f0ac5 and fixed in 6.7.2 with commit 1470d173925d
	Issue introduced in 6.7 with commit 56e449603f0ac5 and fixed in 6.8-rc1 with commit 2bbe6ab2be53

Comment 8 Alex 2024-06-09 13:09:59 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52461 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 56e449603f0ac580700621a356d35d5716a62ce5	YES			NO	NO	unknown (where first YES/NO value means if related sources built).