Bug 2282890 (CVE-2021-47466)

Summary:	CVE-2021-47466 kernel: mm, slub: fix potential memoryleak in kmem_cache_open()
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, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rkeshri, 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 5.4.156, kernel 5.10.76, kernel 5.14.15, kernel 5.15	Doc Type:	If docs needed, set a value
Doc Text:	A potential memory leak was found in the Linux kernel, in kmem_cache_open(). This issue may lead to compromised system availability.	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:	2283370

Description ybuenos 2024-05-23 09:24:55 UTC

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

mm, slub: fix potential memoryleak in kmem_cache_open()

The Linux kernel CVE team has assigned CVE-2021-47466 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052227-CVE-2021-47466-ff03@gregkh/T

Comment 3 Alex 2024-06-09 17:15:21 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47466 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags LEAK ERRORPATH  ; 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.

Comment 5 errata-xmlrpc 2024-09-24 00:36:46 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:7001 https://access.redhat.com/errata/RHSA-2024:7001

Comment 6 errata-xmlrpc 2024-09-24 02:31:19 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:7000 https://access.redhat.com/errata/RHSA-2024:7000