CVE-2024-56533

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved, related to the ALSA: usx2y module. The issue occurs during USB disconnection, where the current code uses snd card free() which waits for the close of all used file descriptors, potentially taking a long time and blocking upper layer USB ioctls, leading to a soft lockup. The snd card free() function is supposed to be replaced with snd card free when closed(), which returns immediately and releases resources asynchronously.

Recommendations To resolve the issue, replace snd card free() with snd card free when closed() in the ALSA: usx2y module during disconnection. This change allows the release of resources to be done asynchronously, preventing the potential for a soft lockup. At the moment, there is no information about a newer version that contains a fix for this vulnerability.