26 #include <kunit/test.h>
47  * test, see the comment for KUNIT_EXPECT_KASAN_FAIL().
49 static int kasan_test_init(struct kunit *test)  in kasan_test_init()  argument
52 		kunit_err(test, "can't run KASAN tests with KASAN disabled");  in kasan_test_init()
59 	kunit_add_named_resource(test, NULL, NULL, &resource,  in kasan_test_init()
64 static void kasan_test_exit(struct kunit *test)  in kasan_test_exit()  argument
67 	KUNIT_EXPECT_FALSE(test, test_status.report_found);  in kasan_test_exit()
72  * KASAN report; causes a test failure otherwise. This relies on a KUnit
77  * checking is auto-disabled. When this happens, this test handler reenables
91 #define KUNIT_EXPECT_KASAN_FAIL(test, expression) do {			\  argument
95 	KUNIT_EXPECT_FALSE(test, READ_ONCE(test_status.report_found));	\
102 		KUNIT_FAIL(test, KUNIT_SUBTEST_INDENT "KASAN failure "	\
116 #define KASAN_TEST_NEEDS_CONFIG_ON(test, config) do {			\  argument
118 		kunit_skip((test), "Test requires " #config "=y");	\
121 #define KASAN_TEST_NEEDS_CONFIG_OFF(test, config) do {			\  argument
123 		kunit_skip((test), "Test requires " #config "=n");	\
126 static void kmalloc_oob_right(struct kunit *test)  in kmalloc_oob_right()  argument
132 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_right()
140 		KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 'x');  in kmalloc_oob_right()
146 	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size + 5] = 'y');  in kmalloc_oob_right()
149 	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] =  in kmalloc_oob_right()
155 static void kmalloc_oob_left(struct kunit *test)  in kmalloc_oob_left()  argument
161 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_left()
164 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr = *(ptr - 1));  in kmalloc_oob_left()
168 static void kmalloc_node_oob_right(struct kunit *test)  in kmalloc_node_oob_right()  argument
174 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_node_oob_right()
177 	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] = ptr[size]);  in kmalloc_node_oob_right()
187 static void kmalloc_pagealloc_oob_right(struct kunit *test)  in kmalloc_pagealloc_oob_right()  argument
192 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_SLUB);  in kmalloc_pagealloc_oob_right()
195 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_pagealloc_oob_right()
198 	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size + OOB_TAG_OFF] = 0);  in kmalloc_pagealloc_oob_right()
203 static void kmalloc_pagealloc_uaf(struct kunit *test)  in kmalloc_pagealloc_uaf()  argument
208 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_SLUB);  in kmalloc_pagealloc_uaf()
211 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_pagealloc_uaf()
214 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[0]);  in kmalloc_pagealloc_uaf()
217 static void kmalloc_pagealloc_invalid_free(struct kunit *test)  in kmalloc_pagealloc_invalid_free()  argument
222 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_SLUB);  in kmalloc_pagealloc_invalid_free()
225 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_pagealloc_invalid_free()
227 	KUNIT_EXPECT_KASAN_FAIL(test, kfree(ptr + 1));  in kmalloc_pagealloc_invalid_free()
230 static void pagealloc_oob_right(struct kunit *test)  in pagealloc_oob_right()  argument
242 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in pagealloc_oob_right()
246 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in pagealloc_oob_right()
248 	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] = ptr[size]);  in pagealloc_oob_right()
252 static void pagealloc_uaf(struct kunit *test)  in pagealloc_uaf()  argument
260 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in pagealloc_uaf()
263 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[0]);  in pagealloc_uaf()
266 static void kmalloc_large_oob_right(struct kunit *test)  in kmalloc_large_oob_right()  argument
276 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_large_oob_right()
279 	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 0);  in kmalloc_large_oob_right()
283 static void krealloc_more_oob_helper(struct kunit *test,  in krealloc_more_oob_helper()  argument
289 	KUNIT_ASSERT_LT(test, size1, size2);  in krealloc_more_oob_helper()
293 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in krealloc_more_oob_helper()
296 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);  in krealloc_more_oob_helper()
309 		KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size2] = 'x');  in krealloc_more_oob_helper()
312 	KUNIT_EXPECT_KASAN_FAIL(test,  in krealloc_more_oob_helper()
318 static void krealloc_less_oob_helper(struct kunit *test,  in krealloc_less_oob_helper()  argument
324 	KUNIT_ASSERT_LT(test, size2, size1);  in krealloc_less_oob_helper()
328 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in krealloc_less_oob_helper()
331 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);  in krealloc_less_oob_helper()
341 		KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size2] = 'x');  in krealloc_less_oob_helper()
344 	KUNIT_EXPECT_KASAN_FAIL(test,  in krealloc_less_oob_helper()
351 	KUNIT_EXPECT_LE(test, round_up(size2, KASAN_GRANULE_SIZE),  in krealloc_less_oob_helper()
353 	KUNIT_EXPECT_LE(test, round_up(middle, KASAN_GRANULE_SIZE),  in krealloc_less_oob_helper()
355 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2[middle] = 'x');  in krealloc_less_oob_helper()
356 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size1 - 1] = 'x');  in krealloc_less_oob_helper()
357 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size1] = 'x');  in krealloc_less_oob_helper()
362 static void krealloc_more_oob(struct kunit *test)  in krealloc_more_oob()  argument
364 	krealloc_more_oob_helper(test, 201, 235);  in krealloc_more_oob()
367 static void krealloc_less_oob(struct kunit *test)  in krealloc_less_oob()  argument
369 	krealloc_less_oob_helper(test, 235, 201);  in krealloc_less_oob()
372 static void krealloc_pagealloc_more_oob(struct kunit *test)  in krealloc_pagealloc_more_oob()  argument
375 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_SLUB);  in krealloc_pagealloc_more_oob()
377 	krealloc_more_oob_helper(test, KMALLOC_MAX_CACHE_SIZE + 201,  in krealloc_pagealloc_more_oob()
381 static void krealloc_pagealloc_less_oob(struct kunit *test)  in krealloc_pagealloc_less_oob()  argument
384 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_SLUB);  in krealloc_pagealloc_less_oob()
386 	krealloc_less_oob_helper(test, KMALLOC_MAX_CACHE_SIZE + 235,  in krealloc_pagealloc_less_oob()
394 static void krealloc_uaf(struct kunit *test)  in krealloc_uaf()  argument
401 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in krealloc_uaf()
404 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2 = krealloc(ptr1, size2, GFP_KERNEL));  in krealloc_uaf()
405 	KUNIT_ASSERT_NULL(test, ptr2);  in krealloc_uaf()
406 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)ptr1);  in krealloc_uaf()
409 static void kmalloc_oob_16(struct kunit *test)  in kmalloc_oob_16()  argument
415 	/* This test is specifically crafted for the generic mode. */  in kmalloc_oob_16()
416 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kmalloc_oob_16()
419 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in kmalloc_oob_16()
422 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);  in kmalloc_oob_16()
426 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);  in kmalloc_oob_16()
431 static void kmalloc_uaf_16(struct kunit *test)  in kmalloc_uaf_16()  argument
438 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in kmalloc_uaf_16()
441 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);  in kmalloc_uaf_16()
444 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);  in kmalloc_uaf_16()
454 static void kmalloc_oob_memset_2(struct kunit *test)  in kmalloc_oob_memset_2()  argument
460 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_memset_2()
463 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 1, 0, 2));  in kmalloc_oob_memset_2()
467 static void kmalloc_oob_memset_4(struct kunit *test)  in kmalloc_oob_memset_4()  argument
473 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_memset_4()
476 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 3, 0, 4));  in kmalloc_oob_memset_4()
480 static void kmalloc_oob_memset_8(struct kunit *test)  in kmalloc_oob_memset_8()  argument
486 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_memset_8()
489 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 7, 0, 8));  in kmalloc_oob_memset_8()
493 static void kmalloc_oob_memset_16(struct kunit *test)  in kmalloc_oob_memset_16()  argument
499 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_memset_16()
502 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 15, 0, 16));  in kmalloc_oob_memset_16()
506 static void kmalloc_oob_in_memset(struct kunit *test)  in kmalloc_oob_in_memset()  argument
512 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_oob_in_memset()
516 	KUNIT_EXPECT_KASAN_FAIL(test,  in kmalloc_oob_in_memset()
521 static void kmalloc_memmove_negative_size(struct kunit *test)  in kmalloc_memmove_negative_size()  argument
529 	 * As a result, this test introduces a side-effect memory corruption,  in kmalloc_memmove_negative_size()
532 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_HW_TAGS);  in kmalloc_memmove_negative_size()
535 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_memmove_negative_size()
540 	KUNIT_EXPECT_KASAN_FAIL(test,  in kmalloc_memmove_negative_size()
545 static void kmalloc_memmove_invalid_size(struct kunit *test)  in kmalloc_memmove_invalid_size()  argument
552 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_memmove_invalid_size()
557 	KUNIT_EXPECT_KASAN_FAIL(test,  in kmalloc_memmove_invalid_size()
562 static void kmalloc_uaf(struct kunit *test)  in kmalloc_uaf()  argument
568 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_uaf()
571 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[8]);  in kmalloc_uaf()
574 static void kmalloc_uaf_memset(struct kunit *test)  in kmalloc_uaf_memset()  argument
581 	 * kernel memory corruption this test causes.  in kmalloc_uaf_memset()
583 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kmalloc_uaf_memset()
586 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_uaf_memset()
589 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr, 0, size));  in kmalloc_uaf_memset()
592 static void kmalloc_uaf2(struct kunit *test)  in kmalloc_uaf2()  argument
600 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in kmalloc_uaf2()
605 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);  in kmalloc_uaf2()
616 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[40]);  in kmalloc_uaf2()
617 	KUNIT_EXPECT_PTR_NE(test, ptr1, ptr2);  in kmalloc_uaf2()
626 static void kmalloc_uaf3(struct kunit *test)  in kmalloc_uaf3()  argument
631 	/* This test is specifically crafted for tag-based modes. */  in kmalloc_uaf3()
632 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in kmalloc_uaf3()
635 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);  in kmalloc_uaf3()
639 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);  in kmalloc_uaf3()
642 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[8]);  in kmalloc_uaf3()
645 static void kfree_via_page(struct kunit *test)  in kfree_via_page()  argument
653 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kfree_via_page()
660 static void kfree_via_phys(struct kunit *test)  in kfree_via_phys()  argument
667 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kfree_via_phys()
673 static void kmem_cache_oob(struct kunit *test)  in kmem_cache_oob()  argument
680 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);  in kmem_cache_oob()
684 		kunit_err(test, "Allocation failed: %s\n", __func__);  in kmem_cache_oob()
689 	KUNIT_EXPECT_KASAN_FAIL(test, *p = p[size + OOB_TAG_OFF]);  in kmem_cache_oob()
695 static void kmem_cache_accounted(struct kunit *test)  in kmem_cache_accounted()  argument
703 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);  in kmem_cache_accounted()
722 static void kmem_cache_bulk(struct kunit *test)  in kmem_cache_bulk()  argument
731 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);  in kmem_cache_bulk()
735 		kunit_err(test, "Allocation failed: %s\n", __func__);  in kmem_cache_bulk()
749 static void kasan_global_oob_right(struct kunit *test)  in kasan_global_oob_right()  argument
767 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kasan_global_oob_right()
769 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);  in kasan_global_oob_right()
772 static void kasan_global_oob_left(struct kunit *test)  in kasan_global_oob_left()  argument
778 	 * GCC is known to fail this test, skip it.  in kasan_global_oob_left()
781 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_CC_IS_CLANG);  in kasan_global_oob_left()
782 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kasan_global_oob_left()
783 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);  in kasan_global_oob_left()
787 static void ksize_unpoisons_memory(struct kunit *test)  in ksize_unpoisons_memory()  argument
793 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in ksize_unpoisons_memory()
802 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[real_size]);  in ksize_unpoisons_memory()
811 static void ksize_uaf(struct kunit *test)  in ksize_uaf()  argument
817 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in ksize_uaf()
821 	KUNIT_EXPECT_KASAN_FAIL(test, ksize(ptr));  in ksize_uaf()
822 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[0]);  in ksize_uaf()
823 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[size]);  in ksize_uaf()
826 static void kasan_stack_oob(struct kunit *test)  in kasan_stack_oob()  argument
833 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_STACK);  in kasan_stack_oob()
835 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);  in kasan_stack_oob()
838 static void kasan_alloca_oob_left(struct kunit *test)  in kasan_alloca_oob_left()  argument
847 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kasan_alloca_oob_left()
848 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_STACK);  in kasan_alloca_oob_left()
850 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);  in kasan_alloca_oob_left()
853 static void kasan_alloca_oob_right(struct kunit *test)  in kasan_alloca_oob_right()  argument
862 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kasan_alloca_oob_right()
863 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_STACK);  in kasan_alloca_oob_right()
865 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);  in kasan_alloca_oob_right()
868 static void kmem_cache_double_free(struct kunit *test)  in kmem_cache_double_free()  argument
875 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);  in kmem_cache_double_free()
879 		kunit_err(test, "Allocation failed: %s\n", __func__);  in kmem_cache_double_free()
885 	KUNIT_EXPECT_KASAN_FAIL(test, kmem_cache_free(cache, p));  in kmem_cache_double_free()
889 static void kmem_cache_invalid_free(struct kunit *test)  in kmem_cache_invalid_free()  argument
897 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);  in kmem_cache_invalid_free()
901 		kunit_err(test, "Allocation failed: %s\n", __func__);  in kmem_cache_invalid_free()
907 	KUNIT_EXPECT_KASAN_FAIL(test, kmem_cache_free(cache, p + 1));  in kmem_cache_invalid_free()
920 static void kmem_cache_double_destroy(struct kunit *test)  in kmem_cache_double_destroy()  argument
926 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);  in kmem_cache_double_destroy()
928 	KUNIT_EXPECT_KASAN_FAIL(test, kmem_cache_destroy(cache));  in kmem_cache_double_destroy()
931 static void kasan_memchr(struct kunit *test)  in kasan_memchr()  argument
940 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_AMD_MEM_ENCRYPT);  in kasan_memchr()
946 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kasan_memchr()
950 	KUNIT_EXPECT_KASAN_FAIL(test,  in kasan_memchr()
956 static void kasan_memcmp(struct kunit *test)  in kasan_memcmp()  argument
966 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_AMD_MEM_ENCRYPT);  in kasan_memcmp()
972 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kasan_memcmp()
977 	KUNIT_EXPECT_KASAN_FAIL(test,  in kasan_memcmp()
982 static void kasan_strings(struct kunit *test)  in kasan_strings()  argument
991 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_AMD_MEM_ENCRYPT);  in kasan_strings()
994 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kasan_strings()
1005 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_ptr_result = strchr(ptr, '1'));  in kasan_strings()
1007 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_ptr_result = strrchr(ptr, '1'));  in kasan_strings()
1009 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = strcmp(ptr, "2"));  in kasan_strings()
1011 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = strncmp(ptr, "2", 1));  in kasan_strings()
1013 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = strlen(ptr));  in kasan_strings()
1015 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = strnlen(ptr, 1));  in kasan_strings()
1018 static void kasan_bitops_modify(struct kunit *test, int nr, void *addr)  in kasan_bitops_modify()  argument
1020 	KUNIT_EXPECT_KASAN_FAIL(test, set_bit(nr, addr));  in kasan_bitops_modify()
1021 	KUNIT_EXPECT_KASAN_FAIL(test, __set_bit(nr, addr));  in kasan_bitops_modify()
1022 	KUNIT_EXPECT_KASAN_FAIL(test, clear_bit(nr, addr));  in kasan_bitops_modify()
1023 	KUNIT_EXPECT_KASAN_FAIL(test, __clear_bit(nr, addr));  in kasan_bitops_modify()
1024 	KUNIT_EXPECT_KASAN_FAIL(test, clear_bit_unlock(nr, addr));  in kasan_bitops_modify()
1025 	KUNIT_EXPECT_KASAN_FAIL(test, __clear_bit_unlock(nr, addr));  in kasan_bitops_modify()
1026 	KUNIT_EXPECT_KASAN_FAIL(test, change_bit(nr, addr));  in kasan_bitops_modify()
1027 	KUNIT_EXPECT_KASAN_FAIL(test, __change_bit(nr, addr));  in kasan_bitops_modify()
1030 static void kasan_bitops_test_and_modify(struct kunit *test, int nr, void *addr)  in kasan_bitops_test_and_modify()  argument
1032 	KUNIT_EXPECT_KASAN_FAIL(test, test_and_set_bit(nr, addr));  in kasan_bitops_test_and_modify()
1033 	KUNIT_EXPECT_KASAN_FAIL(test, __test_and_set_bit(nr, addr));  in kasan_bitops_test_and_modify()
1034 	KUNIT_EXPECT_KASAN_FAIL(test, test_and_set_bit_lock(nr, addr));  in kasan_bitops_test_and_modify()
1035 	KUNIT_EXPECT_KASAN_FAIL(test, test_and_clear_bit(nr, addr));  in kasan_bitops_test_and_modify()
1036 	KUNIT_EXPECT_KASAN_FAIL(test, __test_and_clear_bit(nr, addr));  in kasan_bitops_test_and_modify()
1037 	KUNIT_EXPECT_KASAN_FAIL(test, test_and_change_bit(nr, addr));  in kasan_bitops_test_and_modify()
1038 	KUNIT_EXPECT_KASAN_FAIL(test, __test_and_change_bit(nr, addr));  in kasan_bitops_test_and_modify()
1039 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = test_bit(nr, addr));  in kasan_bitops_test_and_modify()
1042 	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result =  in kasan_bitops_test_and_modify()
1047 static void kasan_bitops_generic(struct kunit *test)  in kasan_bitops_generic()  argument
1051 	/* This test is specifically crafted for the generic mode. */  in kasan_bitops_generic()
1052 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);  in kasan_bitops_generic()
1059 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, bits);  in kasan_bitops_generic()
1066 	kasan_bitops_modify(test, BITS_PER_LONG, bits);  in kasan_bitops_generic()
1071 	kasan_bitops_test_and_modify(test, BITS_PER_LONG + BITS_PER_BYTE, bits);  in kasan_bitops_generic()
1076 static void kasan_bitops_tags(struct kunit *test)  in kasan_bitops_tags()  argument
1080 	/* This test is specifically crafted for tag-based modes. */  in kasan_bitops_tags()
1081 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in kasan_bitops_tags()
1085 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, bits);  in kasan_bitops_tags()
1088 	kasan_bitops_modify(test, BITS_PER_LONG, (void *)bits + 48);  in kasan_bitops_tags()
1089 	kasan_bitops_test_and_modify(test, BITS_PER_LONG + BITS_PER_BYTE, (void *)bits + 48);  in kasan_bitops_tags()
1094 static void kmalloc_double_kzfree(struct kunit *test)  in kmalloc_double_kzfree()  argument
1100 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in kmalloc_double_kzfree()
1103 	KUNIT_EXPECT_KASAN_FAIL(test, kfree_sensitive(ptr));  in kmalloc_double_kzfree()
1106 static void vmalloc_helpers_tags(struct kunit *test)  in vmalloc_helpers_tags()  argument
1110 	/* This test is intended for tag-based modes. */  in vmalloc_helpers_tags()
1111 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in vmalloc_helpers_tags()
1113 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_VMALLOC);  in vmalloc_helpers_tags()
1116 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in vmalloc_helpers_tags()
1119 	KUNIT_EXPECT_GE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_MIN);  in vmalloc_helpers_tags()
1120 	KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);  in vmalloc_helpers_tags()
1123 	KUNIT_ASSERT_TRUE(test, is_vmalloc_addr(ptr));  in vmalloc_helpers_tags()
1124 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vmalloc_to_page(ptr));  in vmalloc_helpers_tags()
1132 		KUNIT_ASSERT_GE(test, rv, 0);  in vmalloc_helpers_tags()
1134 		KUNIT_ASSERT_GE(test, rv, 0);  in vmalloc_helpers_tags()
1141 static void vmalloc_oob(struct kunit *test)  in vmalloc_oob()  argument
1147 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_VMALLOC);  in vmalloc_oob()
1150 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);  in vmalloc_oob()
1168 		KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)v_ptr)[size]);  in vmalloc_oob()
1171 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)v_ptr)[size + 5]);  in vmalloc_oob()
1175 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, page);  in vmalloc_oob()
1177 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_ptr);  in vmalloc_oob()
1189 static void vmap_tags(struct kunit *test)  in vmap_tags()  argument
1195 	 * This test is specifically crafted for the software tag-based mode,  in vmap_tags()
1198 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_SW_TAGS);  in vmap_tags()
1200 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_VMALLOC);  in vmap_tags()
1203 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_page);  in vmap_tags()
1205 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_ptr);  in vmap_tags()
1208 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);  in vmap_tags()
1216 	KUNIT_EXPECT_GE(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_MIN);  in vmap_tags()
1217 	KUNIT_EXPECT_LT(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_KERNEL);  in vmap_tags()
1225 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_page);  in vmap_tags()
1226 	KUNIT_EXPECT_PTR_EQ(test, p_page, v_page);  in vmap_tags()
1232 static void vm_map_ram_tags(struct kunit *test)  in vm_map_ram_tags()  argument
1238 	 * This test is specifically crafted for the software tag-based mode,  in vm_map_ram_tags()
1241 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_SW_TAGS);  in vm_map_ram_tags()
1244 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, page);  in vm_map_ram_tags()
1246 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_ptr);  in vm_map_ram_tags()
1249 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);  in vm_map_ram_tags()
1251 	KUNIT_EXPECT_GE(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_MIN);  in vm_map_ram_tags()
1252 	KUNIT_EXPECT_LT(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_KERNEL);  in vm_map_ram_tags()
1262 static void vmalloc_percpu(struct kunit *test)  in vmalloc_percpu()  argument
1268 	 * This test is specifically crafted for the software tag-based mode,  in vmalloc_percpu()
1271 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_SW_TAGS);  in vmalloc_percpu()
1278 		KUNIT_EXPECT_GE(test, (u8)get_tag(c_ptr), (u8)KASAN_TAG_MIN);  in vmalloc_percpu()
1279 		KUNIT_EXPECT_LT(test, (u8)get_tag(c_ptr), (u8)KASAN_TAG_KERNEL);  in vmalloc_percpu()
1293 static void match_all_not_assigned(struct kunit *test)  in match_all_not_assigned()  argument
1299 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in match_all_not_assigned()
1304 		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in match_all_not_assigned()
1305 		KUNIT_EXPECT_GE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_MIN);  in match_all_not_assigned()
1306 		KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);  in match_all_not_assigned()
1314 		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in match_all_not_assigned()
1315 		KUNIT_EXPECT_GE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_MIN);  in match_all_not_assigned()
1316 		KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);  in match_all_not_assigned()
1326 		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in match_all_not_assigned()
1327 		KUNIT_EXPECT_GE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_MIN);  in match_all_not_assigned()
1328 		KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);  in match_all_not_assigned()
1334 static void match_all_ptr_tag(struct kunit *test)  in match_all_ptr_tag()  argument
1339 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in match_all_ptr_tag()
1342 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in match_all_ptr_tag()
1346 	KUNIT_EXPECT_NE(test, tag, (u8)KASAN_TAG_KERNEL);  in match_all_ptr_tag()
1360 static void match_all_mem_tag(struct kunit *test)  in match_all_mem_tag()  argument
1365 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);  in match_all_mem_tag()
1368 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);  in match_all_mem_tag()
1369 	KUNIT_EXPECT_NE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);  in match_all_mem_tag()
1380 		KUNIT_EXPECT_KASAN_FAIL(test, *ptr = 0);  in match_all_mem_tag()