Bug 2274617 (CVE-2021-47192)

Summary:	CVE-2021-47192 kernel: scsi: core: sysfs: Fix hang when device state is set via sysfs
Product:	[Other] Security Response	Reporter:	Marco Benatto <mbenatto>
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, emilne, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.4.162, kernel 5.10.82, kernel 5.15.5, kernel 5.16	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux Kernel, where a deadlock can occur in drivers/scsi/scsi_sysfs.c.	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:
Bug Blocks:	2274637

Description Marco Benatto 2024-04-11 21:08:32 UTC

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

scsi: core: sysfs: Fix hang when device state is set via sysfs

The Linux kernel CVE team has assigned CVE-2021-47192 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024041035-CVE-2021-47192-3d45@gregkh/T

Comment 2 Alex 2024-06-09 15:21:02 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47192 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags LOCK DEADLOCK INIT IMPROVEONLY  ; 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.