mac80211: validate extended element ID is present

Kernel Updated 02 Oct 2025

Summary

27/12/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1002725: mac80211: validate extended element ID is present. Affects Kernel versions >= 41cbb0f5a29592874355e4159489eb08337cd50e, < c62b16f98688ae7bc0ab23a6490481f4ce9b3a49. 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 Browse

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.

Background

The mac80211 package is a subsystem in the Linux Kernel that provides support for wireless LAN devices. It is responsible for managing the wireless network interface and handling communication between the kernel and wireless drivers. The package is an essential component for wireless networking on Linux systems.

Vulnerability Detail

The vulnerability in mac80211 involves the validation of extended element IDs. Extended element IDs are used in wireless frames to carry additional information. However, the package fails to properly validate the presence of extended element IDs, which can lead to security vulnerabilities. The impact and attack plausibility of this vulnerability have not been proven yet, but it has the potential to be exploited by attackers to compromise the security of wireless networks.

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 mac80211 package in the Linux Kernel is vulnerable to a security issue related to the validation of extended element IDs. To mitigate this vulnerability, it is recommended to update the Linux Kernel to version v5.15.11 or later. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →