UBSAN_SANITIZE_ALL not available on ARM

ARCH_HAS_UBSAN_SANITIZE_ALL is not selected for arm arch, which
prevents selectiong of CONFIG_UBSAN_SANITIZE_ALL

https://github.com/torvalds/linux/blob/master/arch/arm/Kconfig
https://github.com/torvalds/linux/blob/master/lib/Kconfig.ubsan

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index 3f7aa19ced429e1951f98817218ab01dc516ef5b..3361bde35d7851a8b35f5ccc8001a64686eed3bd 100644 (file)
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -441,8 +441,9 @@ def add_kconfig_checks(l, arch):
     # 'self_protection', 'maintainer'
     ubsan_bounds_is_set = KconfigCheck('self_protection', 'maintainer', 'UBSAN_BOUNDS', 'y') # only array index bounds checking
     l += [ubsan_bounds_is_set] # recommended by Kees Cook in /issues/53
-    l += [AND(KconfigCheck('self_protection', 'maintainer', 'UBSAN_SANITIZE_ALL', 'y'),
-              ubsan_bounds_is_set)] # recommended by Kees Cook in /issues/53
+    if arch in ('X86_64', 'ARM64', 'X86_32'):  # ARCH_HAS_UBSAN_SANITIZE_ALL is not enabled for ARM
+        l += [AND(KconfigCheck('self_protection', 'maintainer', 'UBSAN_SANITIZE_ALL', 'y'),
+                  ubsan_bounds_is_set)] # recommended by Kees Cook in /issues/53
     l += [AND(KconfigCheck('self_protection', 'maintainer', 'UBSAN_TRAP', 'y'),
               ubsan_bounds_is_set)] # recommended by Kees Cook in /issues/53