CVE-2025-38448 usb: gadget: u_serial: Fix race condition in TTY wakeup

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: userial: Fix race condition in TTY wakeup A race condition occurs when gsstartio calls either gsstartrx or gsstarttx, as those functions briefly drop the portlock for usbepqueue. This allows gsclose and...