Set noexec on the shared memory partition to prevent programs from executing from there. Rationale: Setting this option on a file system prevents users from executing programs from shared memory. This deters users from introducing potentially malicious software on the system.
Edit the /etc/fstab file and add noexec to the fourth field (mounting options). Look for entries that have mount points that contain /dev/shm. See the fstab(5) manual page for more information. # mount -o remount,noexec /dev/shm Default Value: OS Default: N/A