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-2022-1003904: ALSA: jack: Access input_dev under mutex. Affects Kernel versions < c093b62c40027c21d649c5534ad7aa3605a99b00. No fix is published. How to fix ↓

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Background

The ALSA (Advanced Linux Sound Architecture) package is a software framework and device driver interface that provides an API for sound card drivers on Linux systems. It allows applications to communicate with sound devices and provides various features for audio processing. The 'jack' component in ALSA is responsible for handling input devices. However, a vulnerability has been discovered in the 'jack' component that allows unauthorized access to the 'input_dev' structure while it is protected by a mutex.

Vulnerability Detail

The vulnerability in ALSA's 'jack' component allows an attacker to access the 'input_dev' structure while it is protected by a mutex. This can lead to potential security issues, although the exact impact and attack plausibility have not been proven yet. The vulnerability has been fixed in Linux Kernel version v4.19.247 by commit c093b62c40027c21d649c5534ad7aa3605a99b00.

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 ALSA 'jack' component in the Linux Kernel has a vulnerability that allows unauthorized access to the 'input_dev' structure. It is recommended to update the Linux Kernel to version v4.19.247 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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