Bug 2317581 (CVE-2024-46871)

Summary:	CVE-2024-46871 kernel: drm/amd/display: Correct the defined value for AMDGPU_DMUB_NOTIFICATION_MAX
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the AMD Radeon graphics card driver in the Linux kernel. Out-of-bounds access can be triggered due to arrays being created based on the wrong number of maximum DMUB notification types available, resulting in a denial of service.	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:	2317857
Bug Blocks:

Description OSIDB Bzimport 2024-10-09 14:42:08 UTC

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

drm/amd/display: Correct the defined value for AMDGPU_DMUB_NOTIFICATION_MAX

[Why & How]
It actually exposes '6' types in enum dmub_notification_type. Not 5. Using smaller
number to create array dmub_callback & dmub_thread_offload has potential to access
item out of array bound. Fix it.

Comment 1 errata-xmlrpc 2025-05-13 08:28:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966