uaccess: fix integer overflow on access_ok()
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 v5.16.18 by commit 99801e2f457824955da4aadaa035913a6dede03a, it was introduced in version v4.20 by commit da551281947cb2c0ab6e0045529a706af5d79584. For more details please see the references link.