Vulnerability in mac80211: remove warning in ieee80211_get_sband()

Kernel Updated 02 Oct 2025

Summary

08/07/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1001103: mac80211: remove warning in ieee80211_get_sband(). Affects Kernel versions < a7abf2f48669fafe7324bf0ad19bd0d9c88d0ce1. No fix is published. How to fix ↓

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Background

The mac80211 package is a subsystem in the Linux Kernel that provides support for wireless LAN devices. It is responsible for managing the IEEE 802.11 protocol stack and handling wireless network communications. The ieee80211_get_sband() function is a part of mac80211 and is used to retrieve the band information for a given wireless device. However, a vulnerability has been discovered in this function.

Vulnerability Detail

The vulnerability in ieee80211_get_sband() function allows an attacker to exploit a warning message that is present in the code. By manipulating certain parameters, an attacker can trigger this warning message, potentially leading to a denial of service (DoS) attack or other security issues. The impact and attack plausibility of this vulnerability have not been proven yet.

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

In conclusion, a vulnerability has been discovered in the mac80211 package of the Linux Kernel. The vulnerability is related to the ieee80211_get_sband() function and could potentially lead to a denial of service (DoS) attack or other security issues. Users should update their Linux Kernel to version v4.14.238 or a later version to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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