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-2022-1002260: ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction. Affects Kernel versions >= 00a7bb81c20f3e81711e28e0f6c08cee8fd18514, < 7025f40690a235a118c87674cfb93072694aa66d. 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 drivers. 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 component of the Linux Kernel.

Vulnerability Detail

The vulnerability in the firewire-lib component of the Linux Kernel is related to 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 may be able to exploit this vulnerability to execute arbitrary code or cause a denial of service. The impact and attack plausibility of this vulnerability have not yet been proven.

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

In conclusion, the firewire-lib component of the Linux Kernel is vulnerable to an uninitialized flag for AV/C deferred transactions. This vulnerability can potentially be exploited to execute arbitrary code or cause a denial of service. It is recommended to update the Linux Kernel to version v5.4.189 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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