Vulnerability in drm/msm/mdp5 Package: Return Error Code in mdp5_pipe_release when Deadlock is Detected
Summary
GSD-2022-1003910: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected. Affects Kernel versions >= 7907a0d77cb461f58045763c205a5830be72e97c, < 776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b. No fix is published. How to fix ↓
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Background
The drm/msm/mdp5 package is a component of the Linux Kernel that provides support for display controllers in Qualcomm Snapdragon SoCs. It is responsible for managing the display pipelines and handling various operations related to graphics rendering and output. The mdp5_pipe_release function within this package is used to release a display pipeline. However, a vulnerability has been discovered in this function that can lead to a deadlock condition.
Vulnerability Detail
The vulnerability arises when a deadlock is detected during the release of a display pipeline using the mdp5_pipe_release function. In such cases, the function fails to return an error code, which can result in incorrect behavior or unexpected system behavior. An attacker may be able to exploit this vulnerability to cause a denial-of-service (DoS) condition or potentially execute arbitrary code with elevated privileges.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.19.247 or later. This update includes a commit (776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b) that addresses the issue. Users should ensure that they are running a version of the Linux Kernel that includes this fix.
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Workaround
There is no known workaround for this vulnerability at this time.
Conclusion
In conclusion, the drm/msm/mdp5 package in the Linux Kernel is vulnerable to a deadlock condition when releasing a display pipeline. This can result in unexpected system behavior or potentially allow an attacker to execute arbitrary code with elevated privileges. It is crucial to update the kernel to version v4.19.247 or later to address this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a deadlock condition and may allow an attacker to cause a denial-of-service (DoS) or execute arbitrary code with elevated privileges.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the tool will provide real-time alerts for open-source vulnerabilities.
There are no known exploits for this vulnerability at this time.
Yes, a patch is available in the Linux Kernel version v4.19.247. Users should update their kernel to this version or later to mitigate the vulnerability.
No, updating the kernel to the patched version is the recommended way to mitigate this vulnerability.
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