+ l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_fifos', '2')]
+ l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_regular', '2')]
+ l += [SysctlCheck('harden_userspace', 'kspp', 'fs.suid_dumpable', '0')]
+ l += [SysctlCheck('harden_userspace', 'kspp', 'kernel.randomize_va_space', '2')]