ALSA: jack: Access input_dev under mutex

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-2022-1004080: ALSA: jack: Access input_dev under mutex. Affects Kernel versions < 74bab3bcf422593c582e47130aa8eb41ebb2dc09. 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 ALSA (Advanced Linux Sound Architecture) is a software framework and part of the Linux kernel that provides an API for sound card device drivers. It enables audio and MIDI functionality on Linux-based systems. The 'jack' component within ALSA is responsible for handling audio connections between applications and audio devices. This vulnerability affects the Linux Kernel package.

Vulnerability Detail

The vulnerability in ALSA's jack component allows unauthorized access to the 'input_dev' structure while holding a mutex. This can lead to potential security issues, although the exact impact and attack plausibility have not been proven. The vulnerability has been fixed in Linux Kernel version v4.9.318 by commit 74bab3bcf422593c582e47130aa8eb41ebb2dc09.

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

No workaround has been provided for this vulnerability.

Conclusion

The ALSA 'jack' component in the Linux Kernel is vulnerable to unauthorized access to the 'input_dev' structure under a mutex. It is recommended to update the Linux Kernel package to version v4.9.318 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →