fscrypt: stop using keyrings subsystem for fscryptmasterkey
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 v5.15.78 by commit e6f4fd85ef1ee6ab356bfbd64df28c1cb73aee7e, it was introduced in version v5.4 by commit 22d94f493bfb408fdd764f7b1d0363af2122fba5. For more details please see the references link.