ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1001259: ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction. Affects Kernel versions >= 00a7bb81c20f3e81711e28e0f6c08cee8fd18514, < 39d2c4a33dc1b4402cec68a3c8f82c6588b6edce. No fix is published. How to fix ↓

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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 allows multiple applications to share sound devices simultaneously. The firewire-lib is a component of ALSA that provides support for FireWire audio devices. FireWire is a high-speed serial bus interface commonly used for audio and video equipment. The AV/C (Audio/Video Control) protocol is a subset of the FireWire protocol that enables control and communication between audio and video devices. This vulnerability affects the firewire-lib component of ALSA.

Vulnerability Detail

The vulnerability in the firewire-lib component of ALSA arises from an uninitialized flag for AV/C deferred transactions. This uninitialized flag can lead to potential security vulnerabilities. However, the actual impact and attack plausibility have not yet been proven. The vulnerability was introduced in version v3.16 of the Linux Kernel by commit 00a7bb81c20f3e81711e28e0f6c08cee8fd18514 and is fixed in version v5.17.2 by commit 39d2c4a33dc1b4402cec68a3c8f82c6588b6edce.

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 firewire-lib component in the Linux Kernel is vulnerable to an uninitialized flag for AV/C deferred transactions. This vulnerability can potentially lead to security issues. It is recommended to update the Linux Kernel to version v5.17.2 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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