Bug 2273102 (CVE-2024-26689)

Summary:	CVE-2024-26689 kernel: ceph: prevent use-after-free in encode_cap_msg()
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 5.10.210, kernel 5.15.149, 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 use-after-free flaw was found in the Linux kernel’s experimental Ceph distributed file system. This flaw allows a local user to crash the system.	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:	2273103
Bug Blocks:	2273079

Description Robb Gatica 2024-04-03 22:29:30 UTC

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

ceph: prevent use-after-free in encode_cap_msg()

The Linux kernel CVE team has assigned CVE-2024-26689 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040336-CVE-2024-26689-990b@gregkh/T

Comment 1 Robb Gatica 2024-04-03 22:30:07 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2273103]

Comment 8 Alex 2024-06-09 15:15:17 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26689 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags KASAN DISK RACE UAF  ; 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.