1.1.2.2 Ensure nodev option set on /tmp partition

Audit

Verify that the nodev option is set for the /tmp mount. Run the following command to verify that the nodev mount option is set. Example:

# findmnt --kernel /tmp | grep nodev
/tmp tmpfs tmpfs rw,nosuid,nodev,noexec,relatime,seclabel

Remediation

Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /tmp partition. Example:

<device> /tmp <fstype> defaults,rw,nosuid,nodev,noexec,relatime 0 0

Run the following command to remount /tmp with the configured options:

mount -o remount /tmp