CVE-2023-53045 usb: gadget: u_audio: don't let userspace block driver unbind

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uaudio: don't let userspace block driver unbind In the unbind callback for fuac1 and fuac2, a call to sndcardfree via gaudiocleanup will disconnect the card and then wait for all resources to be released, which happe...