mac80211: Remove Warning in ieee80211_get_sband()

Kernel Updated 02 Oct 2025

Summary

08/07/2021
N/A
No i
Unrated
Not published

GSD-2021-1001115: mac80211: remove warning in ieee80211_get_sband(). Affects Kernel versions < ae9de9444b54c867c9fc1383a6dcba1018cddaea. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Devnack Mobile apps built by Devnack Design, build and launch iOS and Android apps with a senior product team. From idea to store release Start a project

Background

The mac80211 package is a subsystem in the Linux Kernel that provides the implementation of the IEEE 802.11 wireless networking stack. It is responsible for managing wireless network interfaces and handling communication between devices. The ieee80211_get_sband() function is a part of mac80211 and is used to retrieve the regulatory band information for a given wireless device. This information is crucial for ensuring compliance with regional regulations and optimizing wireless communication performance.

Vulnerability Detail

The vulnerability in mac80211 arises from a warning present in the ieee80211_get_sband() function. This warning can potentially lead to confusion and misinterpretation of the function's behavior. Although the impact and attack plausibility of this vulnerability have not been proven, it is important to address it to maintain code clarity and prevent any potential security risks. The vulnerability has been fixed in Linux Kernel version v5.4.129 by commit ae9de9444b54c867c9fc1383a6dcba1018cddaea.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in mac80211's ieee80211_get_sband() function has been identified and fixed in Linux Kernel version v5.4.129. It is recommended to update the kernel to the fixed version to ensure code clarity and mitigate any potential security risks. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →

Share this vulnerability

FAQ

mac80211 is a subsystem in the Linux Kernel that handles the implementation of the IEEE 802.11 wireless networking stack.

ieee80211_get_sband() is a function in mac80211 that retrieves the regulatory band information for a wireless device.

The impact of this vulnerability is not yet proven, but it can potentially lead to confusion and misinterpretation of the ieee80211_get_sband() function's behavior.

To fix this vulnerability, update the Linux Kernel to version v5.4.129 or later.

No specific workaround has been mentioned for this vulnerability.

Related vulnerabilities

Recent vulnerabilities recorded for Kernel.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback