CVE-2026-80659

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

Description A deadlock occurs in the mmc vub300 driver due to recursive locking of the cmd mutex. The function vub300 cmndwork thread() acquires cmd mutex while sending a command and waiting for a response. If a timeout occurs, vub300 command response() triggers a synchronous USB device reset via usb reset device(). This reset process re-enters the driver through vub300 pre reset(), which attempts to acquire the same cmd mutex while it is still held by the worker thread, leading to a recursive lock and system deadlock.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.