How to add mount option 'nodev' for /var/lib/nfs/rpc_pipefs partition on RHEL 6

Issue

• Due to Partition Mounting Weakness vulnerabilities, the following issue is discovered:

/var/lib/nfs/rpc_pipefs partition does not have 'nodev' option set

• /var/lib/nfs/rpc_pipefs is mounted with 'rw,relatime'

$  grep rpc /proc/mounts 
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 

• mount option 'nodev' needs to be added for /var/lib/nfs/rpc_pipefs .