On Ubuntu 22.04 with USBGuard running and six USB devices attached, repeated device reboots cause 'lsusb' to hang indefinitely. If I try and restart the USBGuard service with 'systemctl' one process cannot be killed and goes into a 'D' state. While in this state, the process retains the IPC socket address. The only reliable recovery is a full system reboot.
USBguard version: 1.1.1