mm/kasan/kasan_test.c

315 	char *ptr1, *ptr2;
321 	ptr1 = kmalloc(size1, GFP_KERNEL);
322 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
324 	ptr2 = krealloc(ptr1, size2, GFP_KERNEL);
350 	char *ptr1, *ptr2;
356 	ptr1 = kmalloc(size1, GFP_KERNEL);
357 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
359 	ptr2 = krealloc(ptr1, size2, GFP_KERNEL);
419 	char *ptr1, *ptr2;
423 	ptr1 = kmalloc(size1, GFP_KERNEL);
424 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
425 	kfree(ptr1);
427 	KUNIT_EXPECT_KASAN_FAIL(test, ptr2 = krealloc(ptr1, size2, GFP_KERNEL));
429 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)ptr1);
436 	} *ptr1, *ptr2;
444 	ptr1 = RELOC_HIDE(kmalloc(sizeof(*ptr1) - 3, GFP_KERNEL), 0);
445 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
450 	OPTIMIZER_HIDE_VAR(ptr1);
452 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);
453 	kfree(ptr1);
461 	} *ptr1, *ptr2;
465 	ptr1 = kmalloc(sizeof(*ptr1), GFP_KERNEL);
466 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
472 	KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);
473 	kfree(ptr1);
650 	char *ptr1, *ptr2;
655 	ptr1 = kmalloc(size, GFP_KERNEL);
656 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
658 	kfree(ptr1);
664 	 * For tag-based KASAN ptr1 and ptr2 tags might happen to be the same.
667 	if (!IS_ENABLED(CONFIG_KASAN_GENERIC) && ptr1 == ptr2 && counter++ < 16) {
672 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[40]);
673 	KUNIT_EXPECT_PTR_NE(test, ptr1, ptr2);
684 	char *ptr1, *ptr2;
690 	ptr1 = kmalloc(size, GFP_KERNEL);
691 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
692 	kfree(ptr1);
698 	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[8]);