mm/kasan/kasan_test_c.c

347 	char *ptr1, *ptr2;
356 	ptr2 = krealloc(ptr1, size2, GFP_KERNEL);
357 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
360 	OPTIMIZER_HIDE_VAR(ptr2);
363 	ptr2[size1 - 1] = 'x';
364 	ptr2[size1] = 'x';
365 	ptr2[middle] = 'x';
366 	ptr2[size2 - 1] = 'x';
370 		KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size2] = 'x');
374 		ptr2[round_up(size2, KASAN_GRANULE_SIZE)] = 'x');
376 	kfree(ptr2);
382 	char *ptr1, *ptr2;
391 	ptr2 = krealloc(ptr1, size2, GFP_KERNEL);
392 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
395 	OPTIMIZER_HIDE_VAR(ptr2);
398 	ptr2[size2 - 1] = 'x';
402 		KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size2] = 'x');
406 		ptr2[round_up(size2, KASAN_GRANULE_SIZE)] = 'x');
416 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2[middle] = 'x');
417 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size1 - 1] = 'x');
418 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2[size1] = 'x');
420 	kfree(ptr2);
451 	char *ptr1, *ptr2;
459 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2 = krealloc(ptr1, size2, GFP_KERNEL));
460 	KUNIT_ASSERT_NULL(test, ptr2);
468 	} *ptr1, *ptr2;
479 	ptr2 = kmalloc(sizeof(*ptr2), GFP_KERNEL);
480 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
483 	OPTIMIZER_HIDE_VAR(ptr2);
484 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);
486 	kfree(ptr2);
493 	} *ptr1, *ptr2;
500 	ptr2 = kmalloc(sizeof(*ptr2), GFP_KERNEL);
501 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
502 	kfree(ptr2);
504 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);
682 	char *ptr1, *ptr2;
692 	ptr2 = kmalloc(size, GFP_KERNEL);
693 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
696 	 * For tag-based KASAN ptr1 and ptr2 tags might happen to be the same.
699 	if (!IS_ENABLED(CONFIG_KASAN_GENERIC) && ptr1 == ptr2 && counter++ < 16) {
700 		kfree(ptr2);
705 	KUNIT_EXPECT_PTR_NE(test, ptr1, ptr2);
707 	kfree(ptr2);
716 	char *ptr1, *ptr2;
726 	ptr2 = kmalloc(size, GFP_KERNEL);
727 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
728 	kfree(ptr2);