NFSv4.2: Fix a memory stomp in decodeattrsecurity_label
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 v5.15.86 by commit 51899eefd1a6c0e1b2fa8d4a0a93356252bfbe7f, it was introduced in version v5.9 by commit b4487b93545214a9db8cbf32e86411677b0cca21. For more details please see the references link.