Bug 2273164 (CVE-2024-26709)

Summary:	CVE-2024-26709 kernel: powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach
Product:	[Other] Security Response	Reporter:	Robb Gatica <rgatica>
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, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.7.6, kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the spapr_tce_platform_iommu_attach_dev() function in the Linux kernel, where a missing call to the iommu_group_put() function can lead to a reference count leak for IOMMU groups during DLPAR operations. This vulnerability could lead to kernel panics and instability.	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:	2273165
Bug Blocks:	2273132

Description Robb Gatica 2024-04-03 23:35:01 UTC

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

powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach

The Linux kernel CVE team has assigned CVE-2024-26709 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040341-CVE-2024-26709-19b4@gregkh/T

Comment 1 Robb Gatica 2024-04-03 23:35:34 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2273165]

Comment 2 Alex 2024-06-09 13:19:14 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26709 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: a8ca9fc9134c1a43e6d4db7ff59496bbd7075def	YES			NO	NO	unknown (where first YES/NO value means if related sources built).