Vulnerability in drm/amd/display package: FPU protection missing in dcn30_internal_validate_bw
Summary
GSD-2022-1001337: drm/amd/display: Fix by adding FPU protection for dcn30_internal_validate_bw. Affects Kernel versions < e995c5d52ec7415644eee617fc7e906b51aec7ae. No fix is published. How to fix ↓
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Background
The drm/amd/display package is a component of the Linux Kernel that handles display functionality for AMD graphics cards. It provides the necessary drivers and modules for proper display output. The dcn30_internal_validate_bw function within this package is responsible for validating bandwidth settings. However, it lacks proper Floating Point Unit (FPU) protection, which can lead to potential security vulnerabilities.
Vulnerability Detail
The vulnerability arises from the absence of FPU protection in the dcn30_internal_validate_bw function of the drm/amd/display package. Attackers may exploit this vulnerability to execute arbitrary code or trigger denial-of-service conditions. The impact and attack plausibility of this vulnerability have not been proven yet. It is crucial to address this issue promptly to mitigate potential risks.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The vulnerability in the drm/amd/display package, specifically in the dcn30_internal_validate_bw function, can be addressed by updating the Linux Kernel to version v5.16.20 or later. This update includes the necessary commit (e995c5d52ec7415644eee617fc7e906b51aec7ae) that adds FPU protection. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, if exploited, it could lead to arbitrary code execution or denial-of-service conditions.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. It requires no signup and uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the latest version.
You can find more details about the fix in the Linux Kernel repository. The commit e995c5d52ec7415644eee617fc7e906b51aec7ae addresses this vulnerability.
This vulnerability was discovered by an automated ID intended to aid in the discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.
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