Vulnerability in drm/amd/display Package: Insufficient Watermark Latencies on DCN31
Summary
GSD-2022-1000659: drm/amd/display: watermark latencies is not enough on DCN31. Affects Kernel versions < f4b4b70ba1e7069fa4c30ac75d698e7e6ea933c0. 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 is responsible for managing various aspects of the display pipeline, including setting up watermarks to ensure optimal display quality. Watermarks are used to control the amount of data that can be transferred between different display components, such as the GPU and the display controller. Insufficient watermark latencies on DCN31, a specific display controller, can lead to potential security vulnerabilities.
Vulnerability Detail
The vulnerability in the drm/amd/display package arises from the inadequate implementation of watermark latencies on DCN31. Watermark latencies are crucial for maintaining synchronization and preventing data corruption during data transfers. Insufficient latencies can result in timing-related issues, such as data overflows or underflows, which may lead to display artifacts, data corruption, or even potential security exploits. Attackers could potentially exploit these vulnerabilities to gain unauthorized access or execute arbitrary code on affected systems.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Linux Kernel to the recommended version.
Conclusion
In conclusion, the vulnerability in the drm/amd/display package, specifically related to insufficient watermark latencies on DCN31, can lead to display issues, data corruption, and potential security exploits. It is crucial to update the Linux Kernel to version v5.16.8 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can result in display artifacts, data corruption, and potential security exploits. Attackers may exploit this vulnerability to gain unauthorized access or execute arbitrary code on affected systems.
Systems running the Linux Kernel with the drm/amd/display package, specifically on DCN31 display controllers, are affected by this vulnerability.
No, there is no known workaround for this vulnerability. It is crucial to apply the provided fix by updating the Linux Kernel to the recommended version.
Users can update the Linux Kernel by obtaining the latest version from the official Linux Kernel repository or through their respective Linux distribution's package management system.
For more information about this vulnerability, refer to the provided references link in the vulnerability details section.
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