Add the 'fs.protected_regular' check
authorAlexander Popov <alex.popov@linux.com>
Tue, 17 Oct 2023 16:20:08 +0000 (19:20 +0300)
committerAlexander Popov <alex.popov@linux.com>
Tue, 17 Oct 2023 16:20:08 +0000 (19:20 +0300)
kernel_hardening_checker/checks.py

index fe26f1cecfda3d1a75684f4b7557937fe21807ee..84c5c1974632a0dc12fff2a63951c4fd536e84f4 100644 (file)
@@ -580,7 +580,6 @@ def normalize_cmdline_options(option, value):
 # TODO: draft of security hardening sysctls:
 #    what about bpf_jit_enable?
 #    vm.mmap_min_addr has a good value
-#    fs.protected_regular=2
 #    fs.suid_dumpable=0
 #    kernel.modules_disabled=1
 #    kernel.randomize_va_space=2
@@ -616,3 +615,4 @@ def add_sysctl_checks(l, arch):
     l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_symlinks', '1')]
     l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_hardlinks', '1')]
     l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_fifos', '2')]
+    l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_regular', '2')]