usb: xhci: Check endpoint is valid before dereferencing it
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.271 by commit 2d2820d5f375563690c96e60676855205abfb7f5, it was introduced in version v3.15 by commit 50e8725e7c429701e530439013f9681e1fa36b5d. For more details please see the references link.