Bug 2266507 (CVE-2021-46942)

Summary:	CVE-2021-46942 kernel: io_uring: fix shared sqpoll cancellation hangs
Product:	[Other] Security Response	Reporter:	Nick Tait <ntait>
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, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sukulkar, tglozar, tyberry, 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
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2266508
Bug Blocks:	2266459

Description Nick Tait 2024-02-28 00:02:31 UTC

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

io_uring: fix shared sqpoll cancellation hangs

The Linux kernel CVE team has assigned CVE-2021-46942 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/20240227184057.2368370-7-gregkh@linuxfoundation.org/T/#u

Comment 1 Nick Tait 2024-02-28 00:03:08 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266508]

Comment 6 Justin M. Forbes 2024-02-28 18:52:31 UTC

This was fixed for Fedora with the 5.12.3 stable kernel update.