Bug 2420287 (CVE-2023-53780) - CVE-2023-53780 kernel: drm/amd/display: fix FCLK pstate change underflow
Summary: CVE-2023-53780 kernel: drm/amd/display: fix FCLK pstate change underflow
Keywords:
Status: NEW
Alias: CVE-2023-53780
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-09 01:05 UTC by OSIDB Bzimport
Modified: 2025-12-10 04:11 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-12-09 01:05:59 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: fix FCLK pstate change underflow

[Why]
Currently we set FCLK p-state change
watermark calculated based on dummy
p-state latency when UCLK p-state is
not supported

[How]
Calculate FCLK p-state change watermark
based on on FCLK pstate change latency
in case UCLK p-state is not supported
Comment 1 Alexander B 2025-12-10 04:07:50 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120939-CVE-2023-53780-914d@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.