Bug 2278452 (CVE-2024-27040)

Summary:	CVE-2024-27040 kernel: drm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()'
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, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	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 Linux kernel's AMD link_edp_panel_control.c driver in the edp_set_replay_allow_active() function, where a NULL pointer dereference can occur due to a lack of proper checks. This issue can happen when the function fails to check whether the replay structure is NULL before attempting to access the function replay->funcs->replay_set_power_opt(), and can lead to memory corruption or system instability.	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:	2278453
Bug Blocks:	2278552

Description Zack Miele 2024-05-01 20:46:03 UTC

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

drm/amd/display: Add &#39;replay&#39; NULL check in &#39;edp_set_replay_allow_active()&#39;

The Linux kernel CVE team has assigned CVE-2024-27040 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050112-CVE-2024-27040-e45b@gregkh/T

Comment 1 Zack Miele 2024-05-01 20:46:38 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278453]

Comment 2 Alex 2024-06-09 13:16:28 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-27040 is: 	SKIP	No affected files built, so skip this CVE	NO			-	-	unknown (where first YES/NO value means if related sources built).