CVE-2024-26748 usb: cdns3: fix memory double free when handle zero packet

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fix memory double free when handle zero packet 829 if request-complete 830 spinunlock&privdev-lock; 831 usbgadgetgivebackrequest&privep-endpoint, 832 request; 833 spinlock&privdev-lock; 834 835 836 if request-buf ==...