CVE-2023-53780
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BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
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

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Meta Information

Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-07-07
AI Q&A
2025-12-09
EPSS Evaluated
2026-07-06
NVD
CVE-2023-53780

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability relates to the Linux kernel's AMD display driver where the FCLK p-state change watermark was incorrectly calculated based on a dummy p-state latency when the UCLK p-state was not supported. The fix involves calculating the FCLK p-state change watermark based on the actual FCLK p-state change latency in cases where UCLK p-state is unsupported.

Impact Analysis

This vulnerability relates to the Linux kernel's drm/amd/display component, specifically fixing an issue with FCLK p-state change underflow. The impact involves correcting the calculation of the FCLK p-state change watermark to prevent underflow when UCLK p-state is not supported. This could affect system stability or performance related to AMD display power state changes.

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