Bug 2273105 (CVE-2024-26688)

Summary:	CVE-2024-26688 kernel: fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super
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 5.4.271, kernel 5.10.212, kernel 5.15.151, kernel 6.1.79, kernel 6.6.18, kernel 6.7.6, kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel during hugetlb filesystem configuration, whereby a NULL pointer dereference caused by invalid pagesize values can lead to potential 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:	2273106
Bug Blocks:	2273079

Description Robb Gatica 2024-04-03 22:32:24 UTC

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

fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super

The Linux kernel CVE team has assigned CVE-2024-26688 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040336-CVE-2024-26688-7b0e@gregkh/T

Comment 2 Robb Gatica 2024-04-03 22:33:07 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2273106]

Comment 12 Alex 2024-06-09 15:07:09 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26688 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DANGER NULLPTR DISK  ; 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.