f2fs: fix to do sanity check on last xattr entry in _f2fssetxattr()
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 v5.4.169 by commit b0406b5ef4e2c4fb21d9e7d5c36a0453b4279e9b. For more details please see the references link.