Bug 2278318 (CVE-2024-26991)

Summary:	CVE-2024-26991 kernel: KVM: x86/mmu: x86: Don't overflow lpage_info when checking attributes
Product:	[Other] Security Response	Reporter:	Zack Miele <zmiele>
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, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, vsroka, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.8.8, kernel 6.9-rc5	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux Kernel. A lpage_info overflow can occur when checking attributes. This may lead to a crash.	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:	2278319
Bug Blocks:	2278552

Description Zack Miele 2024-05-01 19:12:39 UTC

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

KVM: x86/mmu: x86: Don&#39;t overflow lpage_info when checking attributes

The Linux kernel CVE team has assigned CVE-2024-26991 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050144-CVE-2024-26991-f6d3@gregkh/T

Comment 1 Zack Miele 2024-05-01 19:13:07 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278319]

Comment 9 errata-xmlrpc 2024-09-24 02:49:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:6997 https://access.redhat.com/errata/RHSA-2024:6997