Vulnerability in drm/amd/display Package: dcn30_internal_validate_bw
Summary
GSD-2022-1000992: drm/amd/display: Fix by adding FPU protection for dcn30_internal_validate_bw. Affects Kernel versions < 76f4c5e5f99ee7084b555d9a38e8ffeb16ec65a2. 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 provides display support for AMD GPUs. It includes various functionalities related to display management, such as handling monitor connections, resolution settings, and color management. The dcn30_internal_validate_bw function within this package is responsible for validating the available bandwidth for display operations on AMD GPUs.
Vulnerability Detail
The vulnerability in the drm/amd/display package arises from a lack of Floating Point Unit (FPU) protection in the dcn30_internal_validate_bw function. This omission could potentially allow an attacker to manipulate the bandwidth validation process, leading to unauthorized access or denial of service. The impact and attack plausibility of this vulnerability have not been proven yet.
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, specifically in the dcn30_internal_validate_bw function, could potentially allow unauthorized access or denial of service. It is crucial to update the Linux Kernel to version v5.17.3 or later to address this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown, as it has not been proven in real-world scenarios. However, if successfully exploited, it could lead to unauthorized access or denial of service.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it in real-time.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
The vulnerability is present in versions of the Linux Kernel prior to v5.17.3. It is advisable to update to the fixed version to ensure the vulnerability is mitigated.
You can find more information about this vulnerability in the GSD-2022-1000992 entry of the GSD Database, available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000992.json
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