Bug 2281847 (CVE-2024-35989)

Summary:	CVE-2024-35989 kernel: dmaengine: idxd: Fix oops during rmmod on single-CPU platforms
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 5.15.158, kernel 6.1.90, kernel 6.6.30, kernel 6.8.9, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	This is a vulnerability in the Linux kernel's Data Movement Accelerator (DMA) engine, specifically affecting the Intel Data Streaming Accelerator (IDXD) driver. The issue arises during the removal (rmmod) of the idxd driver on systems with only one active CPU. In such scenarios, the driver's cleanup process attempts to migrate performance monitoring unit (PMU) contexts to another CPU. However, with no other CPUs available, this leads to a kernel oops—a serious error causing the system to 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:	2281848
Bug Blocks:	2282028

Description Robb Gatica 2024-05-20 15:59:12 UTC

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

dmaengine: idxd: Fix oops during rmmod on single-CPU platforms

The Linux kernel CVE team has assigned CVE-2024-35989 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052020-CVE-2024-35989-c5da@gregkh/T

Comment 1 Robb Gatica 2024-05-20 15:59:49 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281848]

Comment 5 Alex 2024-06-09 15:36:49 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35989 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DANGER  ; these flags parsed automatically based on patche 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 86 errata-xmlrpc 2024-09-24 00:38:49 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 87 errata-xmlrpc 2024-09-24 02:30:26 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

Comment 88 errata-xmlrpc 2024-10-16 00:51:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:8162 https://access.redhat.com/errata/RHSA-2024:8162