Index: udisks-2.9.4/modules/zram/data/udisks2-zram-setup@.service.in
===================================================================
--- udisks-2.9.4.orig/modules/zram/data/udisks2-zram-setup@.service.in
+++ udisks-2.9.4/modules/zram/data/udisks2-zram-setup@.service.in
@@ -5,6 +5,11 @@ After=dev-%i.device
 Requires=dev-%i.device
 
 [Service]
+# added automatically, for details please see
+# https://en.opensuse.org/openSUSE:Security_Features#Systemd_hardening_effort
+ProtectHostname=true
+RestrictRealtime=true
+# end of automatic additions 
 Type=oneshot
 RemainAfterExit=no
 EnvironmentFile=-@zramconfdir@/%i