watch_queue: Fix NULL dereference in error cleanup
Summary
GSD-2022-1002111: watch_queue: Fix NULL dereference in error cleanup. Affects Kernel versions >= c73be61cede5882f9605a852414db559c0ebedfd, < 5ae75b4ed30322b42abaa75ef1b784addfdb7dc9. No fix is published. How to fix ↓
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Background
The vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the operating system that manages system resources and provides an interface for applications to interact with hardware. The watch_queue vulnerability refers to a NULL dereference issue that occurs during error cleanup. When certain conditions are met, a NULL pointer is accessed, leading to a potential system crash or privilege escalation.
Vulnerability Detail
The watch_queue vulnerability arises from a NULL dereference in error cleanup. This means that when an error occurs during the execution of certain code paths, the cleanup process may attempt to access a NULL pointer. This can result in a system crash or potentially be exploited by an attacker to gain elevated privileges or execute arbitrary code. The vulnerability was introduced in version v5.8 of the Linux Kernel and is fixed in version v5.10.110 by commit 5ae75b4ed30322b42abaa75ef1b784addfdb7dc9.
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 watch_queue vulnerability in the Kernel package of the Linux ecosystem can lead to system crashes or potential privilege escalation. It is crucial to update the Kernel package to version v5.10.110 or later to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The watch_queue vulnerability can potentially lead to a system crash or be exploited by attackers to gain elevated privileges or execute arbitrary code.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by the watch_queue vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for vulnerabilities in real-time.
At the time of this report, there is no known public exploit for the watch_queue vulnerability. However, it is still important to apply the recommended fix to mitigate any potential risks.
The recommended approach to mitigate the watch_queue vulnerability is to update the Kernel package to the fixed version. However, if updating is not immediately feasible, other security measures such as network segmentation and access controls can help reduce the risk of exploitation.
For more details about the watch_queue vulnerability, you can refer to the vulnerability report in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002111.json
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