Bug 2278303 (CVE-2024-26998)

Summary:	CVE-2024-26998 kernel: serial: core: Clearing the circular buffer before NULLifying it
Product:	[Other] Security Response	Reporter:	Zack Miele <zmiele>
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 6.6.29, kernel 6.8.8, kernel 6.9-rc5	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's serial core subsystem when handling circular buffers, where the buffer is not properly cleared before being set to NULL. This could lead to data leakage or unexpected behavior.	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:	2278304
Bug Blocks:	2278552

Description Zack Miele 2024-05-01 19:02:02 UTC

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

serial: core: Clearing the circular buffer before NULLifying it

The Linux kernel CVE team has assigned CVE-2024-26998 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050145-CVE-2024-26998-2262@gregkh/T

Comment 1 Zack Miele 2024-05-01 19:02:37 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278304]

Comment 2 Alex 2024-06-09 13:36:52 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26998 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 43066e32227ecde674e8ae1fcdd4a1ede67680c2	YES			NO	NO	unknown (where first YES/NO value means if related sources built).