Vulnerability in batman-adv: Avoid WARN_ON timing related checks

Kernel Updated 02 Oct 2025

Summary

30/06/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1001053: batman-adv: Avoid WARN_ON timing related checks. Affects Kernel versions >= ef0a937f7a1450d3a133ccd83c9c7d07587e7a00, < 2eb4e0b3631832a4291c8bf4c9db873f60b128c8. No fix is published. How to fix ↓

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Background

The batman-adv package is a component of the Linux Kernel ecosystem. It provides a mesh networking protocol for ad-hoc networks. The package allows nodes to communicate with each other and form a distributed network without the need for a centralized infrastructure. The vulnerability in batman-adv relates to timing-related checks that could potentially lead to security issues.

Vulnerability Detail

The vulnerability in batman-adv arises from the presence of timing-related checks. These checks can be exploited by attackers to manipulate the timing of certain operations, potentially leading to security breaches. 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 v5.12.13 by commit 2eb4e0b3631832a4291c8bf4c9db873f60b128c8. The vulnerability was introduced in version v3.14 by commit ef0a937f7a1450d3a133ccd83c9c7d07587e7a00.

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 vulnerability in batman-adv that involves timing-related checks can potentially lead to security breaches. It is recommended to update the Linux Kernel to version v5.12.13 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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