Bug 2275715 (CVE-2024-26868)

Summary:	CVE-2024-26868 kernel: nfs: fix panic when nfs4_ff_layout_prepare_ds() fails
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 6.1.83, kernel 6.6.23, kernel 6.7.11, kernel 6.8.2, kernel 6.9-rc1	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the ff_layout_cancel_io() function in the Linux kernel. Improper error checking with the mirror_ds structure fails to check if it is NULL, leading to a potential NULL pointer dereference. This issue could lead to crashes.	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:	2275716
Bug Blocks:	2275739

Description Robb Gatica 2024-04-17 18:37:04 UTC

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

nfs: fix panic when nfs4_ff_layout_prepare_ds() fails

The Linux kernel CVE team has assigned CVE-2024-26868 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024041737-CVE-2024-26868-35ff@gregkh/T

Comment 1 Robb Gatica 2024-04-17 18:37:41 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2275716]

Comment 4 Alex 2024-06-09 15:13:09 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26868 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags READ DANGER NULLPTR DISK IMPROVEONLY  ; 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 9 errata-xmlrpc 2024-08-14 00:47:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:5363 https://access.redhat.com/errata/RHSA-2024:5363