Bug 2281927 (CVE-2024-35957)

Summary:	CVE-2024-35957 kernel: iommu/vt-d: Fix WARN_ON in iommu probe path
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 6.8.7	Doc Type:	If docs needed, set a value
Doc Text:	CVE-2024-35957 is a vulnerability in the Linux kernel's Intel Virtualization Technology for Directed I/O (VT-d) subsystem. The issue stems from an incorrect assumption that each device has a unique source ID, leading to potential conflicts and system warnings during the IOMMU probe process. This flaw has been addressed by modifying the tracking mechanism to include only devices with PCI Address Translation Services (ATS) capabilities, thereby preventing unnecessary warnings and ensuring system stability. Users are advised to update their Linux kernel to a version that includes this fix to maintain optimal system performance.	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:	2281928
Bug Blocks:	2282032

Description Robb Gatica 2024-05-20 17:11:10 UTC

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

iommu/vt-d: Fix WARN_ON in iommu probe path

The Linux kernel CVE team has assigned CVE-2024-35957 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052019-CVE-2024-35957-8c83@gregkh/T

Comment 1 Robb Gatica 2024-05-20 17:11:46 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281928]

Comment 5 Alex 2024-06-09 13:46:55 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35957 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 1a75cc710b956010137b4fe1d1fa3282bfd8f86c	YES			NO	NO	unknown	 (where first YES/NO value means if related sources built).

Comment 6 errata-xmlrpc 2024-11-12 09:31:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315