Vulnerability in Kernel Package: dm stats: add cond_resched when 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-2022-1003914: dm stats: add cond_resched when looping over entries. Affects Kernel versions < fdf6803caf6ebd94f9ead27f888073c4def13715. No fix is published. How to fix ↓

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Background

The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality. It provides essential services such as process management, memory management, and device drivers. The dm stats module within the Kernel package is used to collect and display statistics for device mapper targets. It allows users to monitor the performance and usage of these targets. However, a vulnerability has been discovered in the dm stats module that could 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, as an attacker could craft malicious input that triggers an infinite loop within the module. This could result in the consumption of excessive system resources, leading to system instability or unresponsiveness. The impact and attack plausibility of this vulnerability have not been proven yet, but it is essential to address it to ensure the stability and security of the system.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel package to version v4.19.246 or later. The fix for this vulnerability was implemented in commit fdf6803caf6ebd94f9ead27f888073c4def13715. Updating to the latest version of the Kernel package will ensure that the dm stats module includes the necessary cond_resched call when looping over entries, mitigating the risk of a DoS attack.

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Workaround

No specific workaround has been provided for this vulnerability. It is advised to apply the fix by updating the Kernel package to the recommended version.

Conclusion

The vulnerability in the dm stats module of the Kernel package can potentially lead to a denial-of-service (DoS) condition. It is crucial to update the Kernel package to the recommended version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →