diff options
| -rw-r--r-- | mm/kasan/kasan_test_c.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/mm/kasan/kasan_test_c.c b/mm/kasan/kasan_test_c.c index 000b996ff695..e0ec5a6d15be 100644 --- a/mm/kasan/kasan_test_c.c +++ b/mm/kasan/kasan_test_c.c @@ -215,6 +215,36 @@ static void kmalloc_node_oob_right(struct kunit *test) kfree(ptr); } +static void kmalloc_track_caller_oob_right(struct kunit *test) +{ + char *ptr; + size_t size = 128 - KASAN_GRANULE_SIZE; + + /* + * Check that KASAN detects out-of-bounds access for object allocated via + * kmalloc_track_caller(). + */ + ptr = kmalloc_track_caller(size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr); + + OPTIMIZER_HIDE_VAR(ptr); + KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 'y'); + + kfree(ptr); + + /* + * Check that KASAN detects out-of-bounds access for object allocated via + * kmalloc_node_track_caller(). + */ + ptr = kmalloc_node_track_caller(size, GFP_KERNEL, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr); + + OPTIMIZER_HIDE_VAR(ptr); + KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 'y'); + + kfree(ptr); +} + /* * Check that KASAN detects an out-of-bounds access for a big object allocated * via kmalloc(). But not as big as to trigger the page_alloc fallback. @@ -2015,6 +2045,7 @@ static struct kunit_case kasan_kunit_test_cases[] = { KUNIT_CASE(kmalloc_oob_right), KUNIT_CASE(kmalloc_oob_left), KUNIT_CASE(kmalloc_node_oob_right), + KUNIT_CASE(kmalloc_track_caller_oob_right), KUNIT_CASE(kmalloc_big_oob_right), KUNIT_CASE(kmalloc_large_oob_right), KUNIT_CASE(kmalloc_large_uaf), |