InformationThe nodev mount option specifies that the filesystem cannot contain special devices.
Since the /tmp filesystem is not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices in /tmp .
SolutionEdit the /etc/fstab file OR the /etc/systemd/system/local-fs.target.wants/tmp.mount file:
If /etc/fstab is used to mount /tmp:
Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /tmp partition. See the fstab(5) manual page for more information.
Run the following command to remount /tmp:
# mount -o remount,nodev /tmp
OR If systemd is used to mount /tmp:
Edit /etc/systemd/system/local-fs.target.wants/tmp.mount to add nodev to the /tmp mount options:
Run the following command to restart the systemd daemon:
# systemctl daemon-reload
Run the following command to restart tmp.mount
# systemctl restart tmp.mount