fix: replace undefined LOADED_MODULE_NAME with MODULE_NAME in apply() functions

[george-petrakis]

Several kernel module hardening scripts used $LOADED_MODULE_NAME inside their apply() functions without ever defining it at the script level. With set -u active, this caused an immediate unbound variable crash (exit 1) any time a script ran in enabled mode.

The variable LOADED_MODULE_NAME is intentionally defined in disable_usb_storage.sh because the modprobe name (usb-storage) differs from the name as it appears in /proc/modules (usb_storage). The affected scripts have no such distinction — their module names are identical in both contexts — so the correct variable is MODULE_NAME, which is what audit() already used consistently in all of these files.

Affected scripts

11 in bin/hardening/, 2 in versions/default/:

• disable_cramfs, disable_dccp, disable_freevxfs, disable_hfs, disable_hfsplus
• disable_jffs2, disable_rds, disable_sctp, disable_squashfs, disable_tipc, disable_udf
• versions/default/1.1.1.5_disable_squashfs.sh, versions/default/1.1.1.6_disable_udf.sh

Root cause

Copy-paste from disable_usb_storage.sh without carrying over the LOADED_MODULE_NAME definition.