ALSA firewire-lib: 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-2022-1002106: ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction. Affects Kernel versions >= 00a7bb81c20f3e81711e28e0f6c08cee8fd18514, < 7e6f5786621df060f8296f074efd275eaf20361a. No fix is published. How to fix ↓

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Background

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 firewire-lib is a component of ALSA that handles communication with FireWire audio devices. FireWire is a high-speed serial bus interface commonly used for audio and video equipment. This vulnerability affects the firewire-lib module in the Linux Kernel.

Vulnerability Detail

The vulnerability in the firewire-lib module arises from an uninitialized flag for AV/C (Audio/Video Control) deferred transactions. AV/C deferred transactions are used for asynchronous communication with FireWire audio devices. By not properly initializing the flag, an attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet.

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 vulnerability with an uninitialized flag for AV/C deferred transactions can potentially lead to arbitrary code execution or denial-of-service. It is crucial to update the Linux Kernel to version v5.10.110 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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