Add SHADOW_CALL_STACK for ARM64

[kconfig-hardened-check.git] / kconfig_hardened_check / __init__.py

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index 3e6e6096d036ae889f6afc05db8174e1b8a113e7..fe06bc951136aa8baa1d836631a9558faf27d0a2 100644 (file)
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -225,9 +225,11 @@ class AND(ComplexOptCheck):
             if not ret:
                 # This FAIL is caused by additional checks,
                 # and not by the main option that this AND-check is about.
-                if opt.result.startswith('FAIL: \"'):
-                    # Describe the reason of the FAIL.
+                # Describe the reason of the FAIL.
+                if opt.result.startswith('FAIL: \"') or opt.result == 'FAIL: not found':
                     self.result = 'FAIL: CONFIG_{} not "{}"'.format(opt.name, opt.expected)
+                elif opt.result == 'FAIL: not present':
+                    self.result = 'FAIL: CONFIG_{} not present'.format(opt.name)
                 else:
                     # This FAIL message is self-explaining.
                     self.result = opt.result
@@ -310,6 +312,7 @@ def construct_checklist(l, arch):
                      VerCheck((5, 9))))] # HARDEN_EL2_VECTORS was included in RANDOMIZE_BASE in v5.9
         l += [OptCheck('self_protection', 'defconfig', 'RODATA_FULL_DEFAULT_ENABLED', 'y')]
         l += [OptCheck('self_protection', 'defconfig', 'ARM64_PTR_AUTH', 'y')]
+        l += [OptCheck('self_protection', 'defconfig', 'ARM64_BTI_KERNEL', 'y')]
     if arch in ('X86_64', 'ARM64'):
         l += [OptCheck('self_protection', 'defconfig', 'VMAP_STACK', 'y')]
     if arch in ('X86_64', 'ARM64', 'X86_32'):
@@ -352,7 +355,7 @@ def construct_checklist(l, arch):
     l += [OR(OptCheck('self_protection', 'kspp', 'INIT_STACK_ALL', 'y'),
              OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y'))]
     l += [OR(OptCheck('self_protection', 'kspp', 'INIT_ON_FREE_DEFAULT_ON', 'y'),
-             OptCheck('self_protection', 'kspp', 'PAGE_POISONING', 'y'))] # before v5.3
+             OptCheck('self_protection', 'kspp', 'PAGE_POISONING_ZERO', 'y'))] # before v5.3
     if arch in ('X86_64', 'ARM64', 'X86_32'):
         stackleak_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STACKLEAK', 'y')
         l += [stackleak_is_set]
@@ -393,11 +396,16 @@ def construct_checklist(l, arch):
                   iommu_support_is_set)]
 
     # 'self_protection', 'my'
+    l += [AND(OptCheck('self_protection', 'my', 'UBSAN_BOUNDS', 'y'),
+              OptCheck('self_protection', 'my', 'UBSAN_MISC', 'is not set'),
+              OptCheck('self_protection', 'my', 'UBSAN_TRAP', 'y'))]
     l += [OptCheck('self_protection', 'my', 'SLUB_DEBUG_ON', 'y')] # TODO: is it better to set that via kernel cmd?
     l += [OptCheck('self_protection', 'my', 'RESET_ATTACK_MITIGATION', 'y')] # needs userspace support (systemd)
     if arch == 'X86_64':
         l += [AND(OptCheck('self_protection', 'my', 'AMD_IOMMU_V2', 'y'),
                   iommu_support_is_set)]
+    if arch == 'ARM64':
+        l += [OptCheck('self_protection', 'my', 'SHADOW_CALL_STACK', 'y')]
 
     # 'security_policy'
     if arch in ('X86_64', 'ARM64', 'X86_32'):
@@ -503,6 +511,7 @@ def construct_checklist(l, arch):
     l += [OptCheck('cut_attack_surface', 'lockdown', 'MMIOTRACE_TEST', 'is not set')] # refers to LOCKDOWN
 
     # 'cut_attack_surface', 'my'
+    l += [OptCheck('cut_attack_surface', 'my', 'TRIM_UNUSED_KSYMS', 'y')]
     l += [OptCheck('cut_attack_surface', 'my', 'MMIOTRACE', 'is not set')] # refers to LOCKDOWN (permissive)
     l += [OptCheck('cut_attack_surface', 'my', 'LIVEPATCH', 'is not set')]
     l += [OptCheck('cut_attack_surface', 'my', 'IP_DCCP', 'is not set')]