diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.ubsan | 13 | ||||
| -rw-r--r-- | lib/test_ubsan.c | 22 |
2 files changed, 0 insertions, 35 deletions
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan index e5372a13511d..236c5cefc4cc 100644 --- a/lib/Kconfig.ubsan +++ b/lib/Kconfig.ubsan @@ -112,19 +112,6 @@ config UBSAN_UNREACHABLE This option enables -fsanitize=unreachable which checks for control flow reaching an expected-to-be-unreachable position. -config UBSAN_OBJECT_SIZE - bool "Perform checking for accesses beyond the end of objects" - default UBSAN - # gcc hugely expands stack usage with -fsanitize=object-size - # https://lore.kernel.org/lkml/CAHk-=wjPasyJrDuwDnpHJS2TuQfExwe=px-SzLeN8GFMAQJPmQ@mail.gmail.com/ - depends on !CC_IS_GCC - depends on $(cc-option,-fsanitize=object-size) - help - This option enables -fsanitize=object-size which checks for accesses - beyond the end of objects where the optimizer can determine both the - object being operated on and its size, usually seen with bad downcasts, - or access to struct members from NULL pointers. - config UBSAN_BOOL bool "Perform checking for non-boolean values used as boolean" default UBSAN diff --git a/lib/test_ubsan.c b/lib/test_ubsan.c index 7e7bbd0f3fd2..2062be1f2e80 100644 --- a/lib/test_ubsan.c +++ b/lib/test_ubsan.c @@ -79,15 +79,6 @@ static void test_ubsan_load_invalid_value(void) eval2 = eval; } -static void test_ubsan_null_ptr_deref(void) -{ - volatile int *ptr = NULL; - int val; - - UBSAN_TEST(CONFIG_UBSAN_OBJECT_SIZE); - val = *ptr; -} - static void test_ubsan_misaligned_access(void) { volatile char arr[5] __aligned(4) = {1, 2, 3, 4, 5}; @@ -98,29 +89,16 @@ static void test_ubsan_misaligned_access(void) *ptr = val; } -static void test_ubsan_object_size_mismatch(void) -{ - /* "((aligned(8)))" helps this not into be misaligned for ptr-access. */ - volatile int val __aligned(8) = 4; - volatile long long *ptr, val2; - - UBSAN_TEST(CONFIG_UBSAN_OBJECT_SIZE); - ptr = (long long *)&val; - val2 = *ptr; -} - static const test_ubsan_fp test_ubsan_array[] = { test_ubsan_shift_out_of_bounds, test_ubsan_out_of_bounds, test_ubsan_load_invalid_value, test_ubsan_misaligned_access, - test_ubsan_object_size_mismatch, }; /* Excluded because they Oops the module. */ static const test_ubsan_fp skip_ubsan_array[] = { test_ubsan_divrem_overflow, - test_ubsan_null_ptr_deref, }; static int __init test_ubsan_init(void) |