Bug 2266928 (CVE-2021-46976)

Summary:	CVE-2021-46976 kernel: drm/i915: Fix crash in auto_retire
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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, rkeshri, rogbas, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---	Flags:	ndegraef: needinfo? (ahanwate)
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.10.38, kernel 5.11.22, kernel 5.12.5, kernel 5.13	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel's i915 GPU driver. This flaw allows an attacker with the ability to activate and deactivate a GPU supported by this driver to cause a denial of service.	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:	2266929
Bug Blocks:	2266939

Description Avinash Hanwate 2024-02-29 08:56:55 UTC

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

drm/i915: Fix crash in auto_retire

The Linux kernel CVE team has assigned CVE-2021-46976 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022822-CVE-2021-46976-1dd4@gregkh/T/#u

Comment 1 Avinash Hanwate 2024-02-29 08:57:34 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266929]

Comment 5 Justin M. Forbes 2024-02-29 21:35:26 UTC

This was fixed for Fedora with the 5.12.5 stable kernel updates.

Comment 10 Alex 2024-06-09 15:16:44 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-46976 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DANGER  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.