Vulnerability in Kernel: dm stats - Looping Over Entries

Kernel Updated 02 Oct 2025

Summary

28/06/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1003644: dm stats: add cond_resched when looping over entries. Affects Kernel versions < e39b536d70edc5f622187cf787db94287e389c50. 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 the system's resources and facilitates communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The dm stats module is a part of the Kernel that collects and displays statistics for device mapper (dm) devices. It allows users to monitor the performance and usage of these devices. However, a vulnerability has been discovered in the dm stats module that can potentially be exploited by attackers.

Vulnerability Detail

The vulnerability in the dm stats module 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 risks. 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 fully proven yet.

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 v5.10.120 or later. The fix for this issue was implemented in commit e39b536d70edc5f622187cf787db94287e389c50. Updating the Kernel to the patched version will ensure that the 'cond_resched' call is included when looping over entries in the dm stats module, mitigating the vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in the dm stats module of the Kernel can potentially lead to system instability, crashes, or execution of arbitrary code. It is crucial to update the Linux Kernel to the patched version to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.

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