fs/mountsetattr: always cleanup mountkattr
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 v5.15.13 by commit 47b5d0a7532d39e42a938f81e3904268145c341d, it was introduced in version v5.12 by commit 9caccd41541a6f7d6279928d9f971f6642c361af. For more details please see the references link.