NFSD: prevent underflow in nfssvcdecodewriteargs()
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 v4.9.311 by commit 1a33e0de60feda402d05ac8a6cf409c19ea3e0b3. For more details please see the references link.