Missing drm_crtc_commit_put in drm/vc4: kms
Summary
GSD-2021-1002570: drm/vc4: kms: Add missing drm_crtc_commit_put. Affects Kernel versions >= 9ec03d7f1ed394897891319a4dda75f52c5d292d, < 53f9601e908d42481addd67cdb01a9288c611124. No fix is published. How to fix ↓
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Background
The drm/vc4: kms package is a component of the Linux Kernel ecosystem. It provides support for the VideoCore IV GPU found in Broadcom SoCs. This package enables display functionality and handles kernel mode-setting (KMS) for the VC4 driver. The VC4 driver is responsible for managing the display controller and rendering graphics on devices that utilize the VideoCore IV GPU.
Vulnerability Detail
The vulnerability in drm/vc4: kms is due to a missing drm_crtc_commit_put function. This function is responsible for releasing resources associated with a commit operation on the display controller. Without this function, resources may not be properly released, leading to potential memory leaks and other resource management issues. 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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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The missing drm_crtc_commit_put function in drm/vc4: kms can potentially lead to resource management issues. It is recommended to update the Linux Kernel to version v5.15.7 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, potential consequences may include memory leaks and resource management issues.
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 to the playground and it will provide real-time alerts for open-source vulnerabilities.
Yes, a fix is available in Linux Kernel version v5.15.7. Updating to this version will resolve the vulnerability.
There are no known exploits for this vulnerability at the moment.
You can find more information about this vulnerability in the GSD-2021-1002570 JSON report at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002570.json
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