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 v4.14.260 by commit 88dedecc24763c2e0bc1e8eeb35f9f2cd785a7e5. For more details please see the references link.