Vulnerability in drm/amd/display package: Wrap dcn301_calculate_wm_and_dlg for FPU

Kernel Updated 02 Oct 2025

Summary

27/02/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000609: drm/amd/display: Wrap dcn301_calculate_wm_and_dlg for FPU. Affects Kernel versions < 456ba2433844a6483cc4c933aa8f43d24575e341. No fix is published. How to fix ↓

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Background

The drm/amd/display package is a component of the Linux Kernel ecosystem. It is responsible for managing display functionality on AMD graphics cards. The package includes various functions and modules that handle display-related tasks, such as calculating watermarks and display line gaps (DLGs). These calculations are crucial for ensuring proper display performance and quality.

Vulnerability Detail

The vulnerability identified in the drm/amd/display package involves the dcn301_calculate_wm_and_dlg function, which is responsible for calculating watermarks and DLGs. The function is not properly wrapped for floating-point unit (FPU) operations, potentially leading to security vulnerabilities. While the exact impact and attack plausibility have not been proven, this vulnerability could potentially be exploited to compromise the security of the system. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.16.5 by commit 456ba2433844a6483cc4c933aa8f43d24575e341.

How To Fix

No fixed version is published for this vulnerability.

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Conclusion

In conclusion, the vulnerability in the drm/amd/display package involving the dcn301_calculate_wm_and_dlg function has the potential to compromise the security of the system. It is crucial to update the Linux Kernel to version v5.16.5 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

What is the impact of this vulnerability?

The exact impact of this vulnerability is not yet proven. However, if exploited, it could potentially compromise the security of the system.

How can I check if my system is affected by this vulnerability?

You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.