Disable Mounting of jffs2 Filesystems (Not Scored) The jffs2 (journaling flash filesystem 2) filesystem type is a log-structured filesystem used in flash memory devices. [enable/disable] Removing support for unneeded filesystem types reduces the local attack surface of the server. If this filesystem type is not needed, disable it. Fix: Edit or create the file /etc/modprobe.d/CIS.conf and add the following line: # install jffs2 /bin/true oval:org.secpod.oval:def:33842 SCAP Repo OVAL Definition 2016-04-19