Add the recommendation about TRIM_UNUSED_KSYMS

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

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index 48f40196f082fedac3175318986fb6d866d209ce..5873a7994faa0324a487f674dfedfe14676e3109 100644 (file)
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -312,6 +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'):
@@ -395,6 +396,9 @@ 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':
@@ -505,6 +509,7 @@ 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')]