Bug 2266457 (CVE-2021-46922)

Summary:	CVE-2021-46922 kernel: KEYS: trusted: Fix TPM reservation for seal/unseal
Product:	[Other] Security Response	Reporter:	Nick Tait <ntait>
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, 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
Doc Text:		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:	2266458
Bug Blocks:	2266445

Description Nick Tait 2024-02-27 22:10:38 UTC

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

KEYS: trusted: Fix TPM reservation for seal/unseal

The Linux kernel CVE team has assigned CVE-2021-46922 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022736-CVE-2021-46922-39b5@gregkh/T/#u

Comment 1 Nick Tait 2024-02-27 22:11:16 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266458]

Comment 5 Justin M. Forbes 2024-02-27 22:37:04 UTC

This was fixed for Fedora with the 5.11.17 stable kernel update.

Comment 6 Eric Sandeen 2024-02-27 23:31:14 UTC

This was already fixed in RHEL9 before it even branched, and for RHEL8.9 via bug #2135881

If zstreams are required, the bug seems to have been introduced in RHEL8.5 via bug #1920812

Comment 8 Alex 2024-06-09 16:34:23 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-46922 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags INIT SIMPLEFIX  ; these flags parsed automatically based on patch 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.