io_uring: fix memory leak of uid in files registration
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 v5.16.19 by commit d6d7a517e81accf6ed22d55684baea763d2dbe43, it was introduced in version v5.5 by commit 08a451739a9b5783f67de51e84cb6d9559bb9dc4. For more details please see the references link.