Vulnerability in Kernel: dm stats - Looping Over Entries
Summary
GSD-2022-1003432: dm stats: add cond_resched when looping over entries. Affects Kernel versions < 40aaeb41dde09939ff41ccb2e569c3d8e46c6b3a. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functionalities for the proper functioning of the system. One of the components in the Kernel is dm stats, which is responsible for collecting and reporting statistics related to device mapper (dm) subsystem. The dm stats module allows users to monitor and analyze the performance of dm devices. However, a vulnerability has been identified in dm stats that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in dm stats arises from a missing cond_resched call when looping over entries. This omission can lead to a denial of service (DoS) condition or other potential security issues. Attackers may be able to exploit this vulnerability to cause system instability, crash the system, or execute arbitrary code. 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 v5.15.45 by commit 40aaeb41dde09939ff41ccb2e569c3d8e46c6b3a.
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. The recommended approach is to update the Kernel to the fixed version.
Conclusion
The vulnerability in dm stats, which is part of the Kernel, can potentially lead to system instability, crashes, or arbitrary code execution. It is crucial to update the Linux Kernel to version v5.15.45 or later to mitigate the risk associated with this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a critical component of the Linux operating system that manages system resources and facilitates communication between hardware and software.
dm stats is a component in the Kernel responsible for collecting and reporting statistics related to device mapper (dm) subsystem.
The impact of this vulnerability can range from a denial of service (DoS) condition to potential security issues, including system instability, crashes, or arbitrary code execution.
Yes, this vulnerability has been fixed in Linux Kernel version v5.15.45 by commit 40aaeb41dde09939ff41ccb2e569c3d8e46c6b3a.
To mitigate the risk, it is recommended to update the Linux Kernel to version v5.15.45 or later by applying the commit 40aaeb41dde09939ff41ccb2e569c3d8e46c6b3a.
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