Bug 2267721 (CVE-2024-26622)

Summary:	CVE-2024-26622 kernel: tomoyo: fix UAF write bug in tomoyo_write_control()
Product:	[Other] Security Response	Reporter:	ybuenos
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	CLOSED NOTABUG	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, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rogbas, 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-rc7	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Tomoyo module in the Linux kernel. The tomoyo_write_control function in the security/tomoyo/common.c file does not protect a buffer from multiple concurrent write requests. This issue potentially leads to a use-after-free or double-free, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-06-20 12:42:41 UTC	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:	2267722
Bug Blocks:	2268973

Description ybuenos 2024-03-04 16:29:46 UTC

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

tomoyo: fix UAF write bug in tomoyo_write_control()

The Linux kernel CVE team has assigned CVE-2024-26622 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024030409-CVE-2024-26622-9e01@gregkh/

Comment 1 ybuenos 2024-03-04 16:30:24 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267722]

Comment 2 Alex 2024-06-09 13:40:51 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26622 is: 	SKIP	No affected files built, so skip this CVE	NO			-	-	unknown (where first YES/NO value means if related sources built).