NFSv4: Don't hold the layoutget locks across multiple RPC calls
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 v5.15.47 by commit d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e. For more details please see the references link.