Cleanup connector on bridge detach vulnerability in Kernel
Summary
GSD-2021-1000398: drm: bridge/panel: Cleanup connector on bridge detach. Affects Kernel versions >= 13dfc0540a575b47b2d640b093ac16e9e09474f6, < ce450934a00cf896e648fde08d0bd1426653d7a2. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functions for device drivers, memory management, and process scheduling. The vulnerability in question affects the bridge/panel module of the Kernel, which is responsible for managing the connection between display bridges and panels. When a bridge is detached, the connector cleanup process may not be properly executed, leading to potential security issues.
Vulnerability Detail
The cleanup connector on bridge detach vulnerability arises from a flaw in the bridge/panel module of the Kernel. When a bridge is detached, the module fails to adequately clean up the associated connector, leaving it in an inconsistent state. This vulnerability could be exploited by an attacker to gain unauthorized access or perform other malicious activities. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.10.37.
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 cleanup connector on bridge detach vulnerability in the Kernel's bridge/panel module poses a potential security risk. It is crucial to update the Kernel to version v5.10.37 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it could potentially allow unauthorized access or enable other malicious activities.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and the Vulert Playground will provide real-time alerts for open-source vulnerabilities.
Yes, a patch for this vulnerability is available in Linux Kernel version v5.10.37. It is recommended to update to this version or a later one to fix the vulnerability.
There are no specific temporary measures mentioned for this vulnerability. It is recommended to update the Kernel to the fixed version as soon as possible.
You can find more information about this vulnerability in the GSD database entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000398.json
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