Bug 2267535 (CVE-2021-47081)

Summary:	CVE-2021-47081 kernel: habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory
Product:	[Other] Security Response	Reporter:	ybuenos
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, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free vulnerability was found in the Linux kernel, which affects the gaudi component and is caused by a reference attempt cb->id, which may have been previously freed during a call to the hl_cb_put() function.	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:	2267536
Bug Blocks:	2267666

Description ybuenos 2024-03-03 09:54:06 UTC

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

habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory

The Linux kernel CVE team has assigned CVE-2021-47081 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024030143-CVE-2021-47081-e590@gregkh/T/#u

Comment 1 ybuenos 2024-03-03 09:54:42 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267536]

Comment 5 Justin M. Forbes 2024-03-04 20:36:12 UTC

This was fixed for Fedora with the 5.12.7 stable kernel updates.

Comment 6 Alex 2024-06-09 13:41:32 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47081 is: 	SKIP	No affected files built, so skip this CVE	NO			-	-	unknown (where first YES/NO value means if related sources built).