diff options
Diffstat (limited to 'lib/test_kasan.c')
| -rw-r--r-- | lib/test_kasan.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/lib/test_kasan.c b/lib/test_kasan.c index 0643573f8686..818e763b5b87 100644 --- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -700,7 +700,7 @@ static void kmem_cache_bulk(struct kunit *test) static char global_array[10]; -static void kasan_global_oob(struct kunit *test) +static void kasan_global_oob_right(struct kunit *test) { /* * Deliberate out-of-bounds access. To prevent CONFIG_UBSAN_LOCAL_BOUNDS @@ -723,6 +723,20 @@ static void kasan_global_oob(struct kunit *test) KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p); } +static void kasan_global_oob_left(struct kunit *test) +{ + char *volatile array = global_array; + char *p = array - 3; + + /* + * GCC is known to fail this test, skip it. + * See https://bugzilla.kernel.org/show_bug.cgi?id=215051. + */ + KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_CC_IS_CLANG); + KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC); + KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p); +} + /* Check that ksize() makes the whole object accessible. */ static void ksize_unpoisons_memory(struct kunit *test) { @@ -1162,7 +1176,8 @@ static struct kunit_case kasan_kunit_test_cases[] = { KUNIT_CASE(kmem_cache_oob), KUNIT_CASE(kmem_cache_accounted), KUNIT_CASE(kmem_cache_bulk), - KUNIT_CASE(kasan_global_oob), + KUNIT_CASE(kasan_global_oob_right), + KUNIT_CASE(kasan_global_oob_left), KUNIT_CASE(kasan_stack_oob), KUNIT_CASE(kasan_alloca_oob_left), KUNIT_CASE(kasan_alloca_oob_right), |