ProcGate is capable of detecting (no root is required) whether your device is vulnerable to procfs leaks.
ProcGate also has the ability to fix a vulnerable system by re-mounting /proc (if you have root access).
In addition if you are rooted with Magisk or SuperSU the app can also add a boot script with the fix included so that your procfs will always be re-mounted properly on boot.
As a bonus ProcGate also comes with Cache Cleaner to delete junk cache files and speed up your phone.