Bug 2373635 (CVE-2022-49969)

Summary:	CVE-2022-49969 kernel: drm/amd/display: clear optc underflow before turn off odm clock
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
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-06-18 12:11:37 UTC

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

drm/amd/display: clear optc underflow before turn off odm clock

[Why]
After ODM clock off, optc underflow bit will be kept there always and clear not work.
We need to clear that before clock off.

[How]
Clear that if have when clock off.

Comment 1 Avinash Hanwate 2025-06-19 00:14:16 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061816-CVE-2022-49969-fd54@gregkh/T

Comment 6 errata-xmlrpc 2025-10-01 18:10:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:17159 https://access.redhat.com/errata/RHSA-2025:17159

Comment 7 errata-xmlrpc 2025-10-01 19:16:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:17192 https://access.redhat.com/errata/RHSA-2025:17192

Comment 8 errata-xmlrpc 2025-10-15 00:24:59 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:18043 https://access.redhat.com/errata/RHSA-2025:18043