diff options
| -rw-r--r-- | lib/Kconfig.ubsan | 11 | ||||
| -rw-r--r-- | scripts/Makefile.ubsan | 5 |
2 files changed, 15 insertions, 1 deletions
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan index 39494af9a84a..bc6e651df68c 100644 --- a/lib/Kconfig.ubsan +++ b/lib/Kconfig.ubsan @@ -1,6 +1,9 @@ config ARCH_HAS_UBSAN_SANITIZE_ALL bool +config ARCH_WANTS_UBSAN_NO_NULL + def_bool n + config UBSAN bool "Undefined behaviour sanity checker" help @@ -34,3 +37,11 @@ config UBSAN_ALIGNMENT This option enables detection of unaligned memory accesses. Enabling this option on architectures that support unaligned accesses may produce a lot of false positives. + +config UBSAN_NULL + bool "Enable checking of null pointers" + depends on UBSAN + default y if !ARCH_WANTS_UBSAN_NO_NULL + help + This option enables detection of memory accesses via a + null pointer. diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan index 8ab68679cfb5..dd779c40c8e6 100644 --- a/scripts/Makefile.ubsan +++ b/scripts/Makefile.ubsan @@ -3,7 +3,6 @@ ifdef CONFIG_UBSAN CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero) CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable) CFLAGS_UBSAN += $(call cc-option, -fsanitize=vla-bound) - CFLAGS_UBSAN += $(call cc-option, -fsanitize=null) CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow) CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds) CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size) @@ -14,4 +13,8 @@ ifdef CONFIG_UBSAN ifdef CONFIG_UBSAN_ALIGNMENT CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment) endif + +ifdef CONFIG_UBSAN_NULL + CFLAGS_UBSAN += $(call cc-option, -fsanitize=null) +endif endif |