| //===-- asan_test.cc ------------------------------------------------------===// |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of AddressSanitizer, an address sanity checker. |
| // |
| //===----------------------------------------------------------------------===// |
| #include "asan_test_utils.h" |
| |
| NOINLINE void *malloc_fff(size_t size) { |
| void *res = malloc/**/(size); break_optimization(0); return res;} |
| NOINLINE void *malloc_eee(size_t size) { |
| void *res = malloc_fff(size); break_optimization(0); return res;} |
| NOINLINE void *malloc_ddd(size_t size) { |
| void *res = malloc_eee(size); break_optimization(0); return res;} |
| NOINLINE void *malloc_ccc(size_t size) { |
| void *res = malloc_ddd(size); break_optimization(0); return res;} |
| NOINLINE void *malloc_bbb(size_t size) { |
| void *res = malloc_ccc(size); break_optimization(0); return res;} |
| NOINLINE void *malloc_aaa(size_t size) { |
| void *res = malloc_bbb(size); break_optimization(0); return res;} |
| |
| NOINLINE void free_ccc(void *p) { free(p); break_optimization(0);} |
| NOINLINE void free_bbb(void *p) { free_ccc(p); break_optimization(0);} |
| NOINLINE void free_aaa(void *p) { free_bbb(p); break_optimization(0);} |
| |
| template<typename T> |
| NOINLINE void uaf_test(int size, int off) { |
| char *p = (char *)malloc_aaa(size); |
| free_aaa(p); |
| for (int i = 1; i < 100; i++) |
| free_aaa(malloc_aaa(i)); |
| fprintf(stderr, "writing %ld byte(s) at %p with offset %d\n", |
| (long)sizeof(T), p, off); |
| asan_write((T*)(p + off)); |
| } |
| |
| TEST(AddressSanitizer, HasFeatureAddressSanitizerTest) { |
| #if defined(__has_feature) && __has_feature(address_sanitizer) |
| bool asan = 1; |
| #elif defined(__SANITIZE_ADDRESS__) |
| bool asan = 1; |
| #else |
| bool asan = 0; |
| #endif |
| EXPECT_EQ(true, asan); |
| } |
| |
| TEST(AddressSanitizer, SimpleDeathTest) { |
| EXPECT_DEATH(exit(1), ""); |
| } |
| |
| TEST(AddressSanitizer, VariousMallocsTest) { |
| int *a = (int*)malloc(100 * sizeof(int)); |
| a[50] = 0; |
| free(a); |
| |
| int *r = (int*)malloc(10); |
| r = (int*)realloc(r, 2000 * sizeof(int)); |
| r[1000] = 0; |
| free(r); |
| |
| int *b = new int[100]; |
| b[50] = 0; |
| delete [] b; |
| |
| int *c = new int; |
| *c = 0; |
| delete c; |
| |
| #if SANITIZER_TEST_HAS_POSIX_MEMALIGN |
| int *pm; |
| int pm_res = posix_memalign((void**)&pm, kPageSize, kPageSize); |
| EXPECT_EQ(0, pm_res); |
| free(pm); |
| #endif // SANITIZER_TEST_HAS_POSIX_MEMALIGN |
| |
| #if SANITIZER_TEST_HAS_MEMALIGN |
| int *ma = (int*)memalign(kPageSize, kPageSize); |
| EXPECT_EQ(0U, (uintptr_t)ma % kPageSize); |
| ma[123] = 0; |
| free(ma); |
| #endif // SANITIZER_TEST_HAS_MEMALIGN |
| } |
| |
| TEST(AddressSanitizer, CallocTest) { |
| int *a = (int*)calloc(100, sizeof(int)); |
| EXPECT_EQ(0, a[10]); |
| free(a); |
| } |
| |
| TEST(AddressSanitizer, CallocReturnsZeroMem) { |
| size_t sizes[] = {16, 1000, 10000, 100000, 2100000}; |
| for (size_t s = 0; s < sizeof(sizes)/sizeof(sizes[0]); s++) { |
| size_t size = sizes[s]; |
| for (size_t iter = 0; iter < 5; iter++) { |
| char *x = Ident((char*)calloc(1, size)); |
| EXPECT_EQ(x[0], 0); |
| EXPECT_EQ(x[size - 1], 0); |
| EXPECT_EQ(x[size / 2], 0); |
| EXPECT_EQ(x[size / 3], 0); |
| EXPECT_EQ(x[size / 4], 0); |
| memset(x, 0x42, size); |
| free(Ident(x)); |
| #if !defined(_WIN32) |
| // FIXME: OOM on Windows. We should just make this a lit test |
| // with quarantine size set to 1. |
| free(Ident(malloc(Ident(1 << 27)))); // Try to drain the quarantine. |
| #endif |
| } |
| } |
| } |
| |
| #if !defined(_WIN32) // No valloc on Windows. |
| TEST(AddressSanitizer, VallocTest) { |
| void *a = valloc(100); |
| EXPECT_EQ(0U, (uintptr_t)a % kPageSize); |
| free(a); |
| } |
| #endif |
| |
| #if SANITIZER_TEST_HAS_PVALLOC |
| TEST(AddressSanitizer, PvallocTest) { |
| char *a = (char*)pvalloc(kPageSize + 100); |
| EXPECT_EQ(0U, (uintptr_t)a % kPageSize); |
| a[kPageSize + 101] = 1; // we should not report an error here. |
| free(a); |
| |
| a = (char*)pvalloc(0); // pvalloc(0) should allocate at least one page. |
| EXPECT_EQ(0U, (uintptr_t)a % kPageSize); |
| a[101] = 1; // we should not report an error here. |
| free(a); |
| } |
| #endif // SANITIZER_TEST_HAS_PVALLOC |
| |
| #if !defined(_WIN32) |
| // FIXME: Use an equivalent of pthread_setspecific on Windows. |
| void *TSDWorker(void *test_key) { |
| if (test_key) { |
| pthread_setspecific(*(pthread_key_t*)test_key, (void*)0xfeedface); |
| } |
| return NULL; |
| } |
| |
| void TSDDestructor(void *tsd) { |
| // Spawning a thread will check that the current thread id is not -1. |
| pthread_t th; |
| PTHREAD_CREATE(&th, NULL, TSDWorker, NULL); |
| PTHREAD_JOIN(th, NULL); |
| } |
| |
| // This tests triggers the thread-specific data destruction fiasco which occurs |
| // if we don't manage the TSD destructors ourselves. We create a new pthread |
| // key with a non-NULL destructor which is likely to be put after the destructor |
| // of AsanThread in the list of destructors. |
| // In this case the TSD for AsanThread will be destroyed before TSDDestructor |
| // is called for the child thread, and a CHECK will fail when we call |
| // pthread_create() to spawn the grandchild. |
| TEST(AddressSanitizer, DISABLED_TSDTest) { |
| pthread_t th; |
| pthread_key_t test_key; |
| pthread_key_create(&test_key, TSDDestructor); |
| PTHREAD_CREATE(&th, NULL, TSDWorker, &test_key); |
| PTHREAD_JOIN(th, NULL); |
| pthread_key_delete(test_key); |
| } |
| #endif |
| |
| TEST(AddressSanitizer, UAF_char) { |
| const char *uaf_string = "AddressSanitizer:.*heap-use-after-free"; |
| EXPECT_DEATH(uaf_test<U1>(1, 0), uaf_string); |
| EXPECT_DEATH(uaf_test<U1>(10, 0), uaf_string); |
| EXPECT_DEATH(uaf_test<U1>(10, 10), uaf_string); |
| EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, 0), uaf_string); |
| EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, kLargeMalloc / 2), uaf_string); |
| } |
| |
| TEST(AddressSanitizer, UAF_long_double) { |
| if (sizeof(long double) == sizeof(double)) return; |
| long double *p = Ident(new long double[10]); |
| EXPECT_DEATH(Ident(p)[12] = 0, "WRITE of size 1[026]"); |
| EXPECT_DEATH(Ident(p)[0] = Ident(p)[12], "READ of size 1[026]"); |
| delete [] Ident(p); |
| } |
| |
| #if !defined(_WIN32) |
| struct Packed5 { |
| int x; |
| char c; |
| } __attribute__((packed)); |
| #else |
| # pragma pack(push, 1) |
| struct Packed5 { |
| int x; |
| char c; |
| }; |
| # pragma pack(pop) |
| #endif |
| |
| TEST(AddressSanitizer, UAF_Packed5) { |
| static_assert(sizeof(Packed5) == 5, "Please check the keywords used"); |
| Packed5 *p = Ident(new Packed5[2]); |
| EXPECT_DEATH(p[0] = p[3], "READ of size 5"); |
| EXPECT_DEATH(p[3] = p[0], "WRITE of size 5"); |
| delete [] Ident(p); |
| } |
| |
| #if ASAN_HAS_BLACKLIST |
| TEST(AddressSanitizer, IgnoreTest) { |
| int *x = Ident(new int); |
| delete Ident(x); |
| *x = 0; |
| } |
| #endif // ASAN_HAS_BLACKLIST |
| |
| struct StructWithBitField { |
| int bf1:1; |
| int bf2:1; |
| int bf3:1; |
| int bf4:29; |
| }; |
| |
| TEST(AddressSanitizer, BitFieldPositiveTest) { |
| StructWithBitField *x = new StructWithBitField; |
| delete Ident(x); |
| EXPECT_DEATH(x->bf1 = 0, "use-after-free"); |
| EXPECT_DEATH(x->bf2 = 0, "use-after-free"); |
| EXPECT_DEATH(x->bf3 = 0, "use-after-free"); |
| EXPECT_DEATH(x->bf4 = 0, "use-after-free"); |
| } |
| |
| struct StructWithBitFields_8_24 { |
| int a:8; |
| int b:24; |
| }; |
| |
| TEST(AddressSanitizer, BitFieldNegativeTest) { |
| StructWithBitFields_8_24 *x = Ident(new StructWithBitFields_8_24); |
| x->a = 0; |
| x->b = 0; |
| delete Ident(x); |
| } |
| |
| #if ASAN_NEEDS_SEGV |
| namespace { |
| |
| const char kUnknownCrash[] = "AddressSanitizer: SEGV on unknown address"; |
| const char kOverriddenHandler[] = "ASan signal handler has been overridden\n"; |
| |
| TEST(AddressSanitizer, WildAddressTest) { |
| char *c = (char*)0x123; |
| EXPECT_DEATH(*c = 0, kUnknownCrash); |
| } |
| |
| void my_sigaction_sighandler(int, siginfo_t*, void*) { |
| fprintf(stderr, kOverriddenHandler); |
| exit(1); |
| } |
| |
| void my_signal_sighandler(int signum) { |
| fprintf(stderr, kOverriddenHandler); |
| exit(1); |
| } |
| |
| TEST(AddressSanitizer, SignalTest) { |
| struct sigaction sigact; |
| memset(&sigact, 0, sizeof(sigact)); |
| sigact.sa_sigaction = my_sigaction_sighandler; |
| sigact.sa_flags = SA_SIGINFO; |
| // ASan should silently ignore sigaction()... |
| EXPECT_EQ(0, sigaction(SIGSEGV, &sigact, 0)); |
| #ifdef __APPLE__ |
| EXPECT_EQ(0, sigaction(SIGBUS, &sigact, 0)); |
| #endif |
| char *c = (char*)0x123; |
| EXPECT_DEATH(*c = 0, kUnknownCrash); |
| // ... and signal(). |
| EXPECT_EQ(0, signal(SIGSEGV, my_signal_sighandler)); |
| EXPECT_DEATH(*c = 0, kUnknownCrash); |
| } |
| } // namespace |
| #endif |
| |
| static void TestLargeMalloc(size_t size) { |
| char buff[1024]; |
| sprintf(buff, "is located 1 bytes to the left of %lu-byte", (long)size); |
| EXPECT_DEATH(Ident((char*)malloc(size))[-1] = 0, buff); |
| } |
| |
| TEST(AddressSanitizer, LargeMallocTest) { |
| const int max_size = (SANITIZER_WORDSIZE == 32) ? 1 << 26 : 1 << 28; |
| for (int i = 113; i < max_size; i = i * 2 + 13) { |
| TestLargeMalloc(i); |
| } |
| } |
| |
| TEST(AddressSanitizer, HugeMallocTest) { |
| if (SANITIZER_WORDSIZE != 64 || ASAN_AVOID_EXPENSIVE_TESTS) return; |
| size_t n_megs = 4100; |
| EXPECT_DEATH(Ident((char*)malloc(n_megs << 20))[-1] = 0, |
| "is located 1 bytes to the left|" |
| "AddressSanitizer failed to allocate"); |
| } |
| |
| #if SANITIZER_TEST_HAS_MEMALIGN |
| void MemalignRun(size_t align, size_t size, int idx) { |
| char *p = (char *)memalign(align, size); |
| Ident(p)[idx] = 0; |
| free(p); |
| } |
| |
| TEST(AddressSanitizer, memalign) { |
| for (int align = 16; align <= (1 << 23); align *= 2) { |
| size_t size = align * 5; |
| EXPECT_DEATH(MemalignRun(align, size, -1), |
| "is located 1 bytes to the left"); |
| EXPECT_DEATH(MemalignRun(align, size, size + 1), |
| "is located 1 bytes to the right"); |
| } |
| } |
| #endif // SANITIZER_TEST_HAS_MEMALIGN |
| |
| void *ManyThreadsWorker(void *a) { |
| for (int iter = 0; iter < 100; iter++) { |
| for (size_t size = 100; size < 2000; size *= 2) { |
| free(Ident(malloc(size))); |
| } |
| } |
| return 0; |
| } |
| |
| TEST(AddressSanitizer, ManyThreadsTest) { |
| const size_t kNumThreads = |
| (SANITIZER_WORDSIZE == 32 || ASAN_AVOID_EXPENSIVE_TESTS) ? 30 : 1000; |
| pthread_t t[kNumThreads]; |
| for (size_t i = 0; i < kNumThreads; i++) { |
| PTHREAD_CREATE(&t[i], 0, ManyThreadsWorker, (void*)i); |
| } |
| for (size_t i = 0; i < kNumThreads; i++) { |
| PTHREAD_JOIN(t[i], 0); |
| } |
| } |
| |
| TEST(AddressSanitizer, ReallocTest) { |
| const int kMinElem = 5; |
| int *ptr = (int*)malloc(sizeof(int) * kMinElem); |
| ptr[3] = 3; |
| for (int i = 0; i < 10000; i++) { |
| ptr = (int*)realloc(ptr, |
| (my_rand() % 1000 + kMinElem) * sizeof(int)); |
| EXPECT_EQ(3, ptr[3]); |
| } |
| free(ptr); |
| // Realloc pointer returned by malloc(0). |
| int *ptr2 = Ident((int*)malloc(0)); |
| ptr2 = Ident((int*)realloc(ptr2, sizeof(*ptr2))); |
| *ptr2 = 42; |
| EXPECT_EQ(42, *ptr2); |
| free(ptr2); |
| } |
| |
| TEST(AddressSanitizer, ReallocFreedPointerTest) { |
| void *ptr = Ident(malloc(42)); |
| ASSERT_TRUE(NULL != ptr); |
| free(ptr); |
| EXPECT_DEATH(ptr = realloc(ptr, 77), "attempting double-free"); |
| } |
| |
| TEST(AddressSanitizer, ReallocInvalidPointerTest) { |
| void *ptr = Ident(malloc(42)); |
| EXPECT_DEATH(ptr = realloc((int*)ptr + 1, 77), "attempting free.*not malloc"); |
| free(ptr); |
| } |
| |
| TEST(AddressSanitizer, ZeroSizeMallocTest) { |
| // Test that malloc(0) and similar functions don't return NULL. |
| void *ptr = Ident(malloc(0)); |
| EXPECT_TRUE(NULL != ptr); |
| free(ptr); |
| #if SANITIZER_TEST_HAS_POSIX_MEMALIGN |
| int pm_res = posix_memalign(&ptr, 1<<20, 0); |
| EXPECT_EQ(0, pm_res); |
| EXPECT_TRUE(NULL != ptr); |
| free(ptr); |
| #endif // SANITIZER_TEST_HAS_POSIX_MEMALIGN |
| int *int_ptr = new int[0]; |
| int *int_ptr2 = new int[0]; |
| EXPECT_TRUE(NULL != int_ptr); |
| EXPECT_TRUE(NULL != int_ptr2); |
| EXPECT_NE(int_ptr, int_ptr2); |
| delete[] int_ptr; |
| delete[] int_ptr2; |
| } |
| |
| #if SANITIZER_TEST_HAS_MALLOC_USABLE_SIZE |
| static const char *kMallocUsableSizeErrorMsg = |
| "AddressSanitizer: attempting to call malloc_usable_size()"; |
| |
| TEST(AddressSanitizer, MallocUsableSizeTest) { |
| const size_t kArraySize = 100; |
| char *array = Ident((char*)malloc(kArraySize)); |
| int *int_ptr = Ident(new int); |
| EXPECT_EQ(0U, malloc_usable_size(NULL)); |
| EXPECT_EQ(kArraySize, malloc_usable_size(array)); |
| EXPECT_EQ(sizeof(int), malloc_usable_size(int_ptr)); |
| EXPECT_DEATH(malloc_usable_size((void*)0x123), kMallocUsableSizeErrorMsg); |
| EXPECT_DEATH(malloc_usable_size(array + kArraySize / 2), |
| kMallocUsableSizeErrorMsg); |
| free(array); |
| EXPECT_DEATH(malloc_usable_size(array), kMallocUsableSizeErrorMsg); |
| delete int_ptr; |
| } |
| #endif // SANITIZER_TEST_HAS_MALLOC_USABLE_SIZE |
| |
| void WrongFree() { |
| int *x = (int*)malloc(100 * sizeof(int)); |
| // Use the allocated memory, otherwise Clang will optimize it out. |
| Ident(x); |
| free(x + 1); |
| } |
| |
| #if !defined(_WIN32) // FIXME: This should be a lit test. |
| TEST(AddressSanitizer, WrongFreeTest) { |
| EXPECT_DEATH(WrongFree(), ASAN_PCRE_DOTALL |
| "ERROR: AddressSanitizer: attempting free.*not malloc" |
| ".*is located 4 bytes inside of 400-byte region" |
| ".*allocated by thread"); |
| } |
| #endif |
| |
| void DoubleFree() { |
| int *x = (int*)malloc(100 * sizeof(int)); |
| fprintf(stderr, "DoubleFree: x=%p\n", x); |
| free(x); |
| free(x); |
| fprintf(stderr, "should have failed in the second free(%p)\n", x); |
| abort(); |
| } |
| |
| #if !defined(_WIN32) // FIXME: This should be a lit test. |
| TEST(AddressSanitizer, DoubleFreeTest) { |
| EXPECT_DEATH(DoubleFree(), ASAN_PCRE_DOTALL |
| "ERROR: AddressSanitizer: attempting double-free" |
| ".*is located 0 bytes inside of 400-byte region" |
| ".*freed by thread T0 here" |
| ".*previously allocated by thread T0 here"); |
| } |
| #endif |
| |
| template<int kSize> |
| NOINLINE void SizedStackTest() { |
| char a[kSize]; |
| char *A = Ident((char*)&a); |
| const char *expected_death = "AddressSanitizer: stack-buffer-"; |
| for (size_t i = 0; i < kSize; i++) |
| A[i] = i; |
| EXPECT_DEATH(A[-1] = 0, expected_death); |
| EXPECT_DEATH(A[-5] = 0, expected_death); |
| EXPECT_DEATH(A[kSize] = 0, expected_death); |
| EXPECT_DEATH(A[kSize + 1] = 0, expected_death); |
| EXPECT_DEATH(A[kSize + 5] = 0, expected_death); |
| if (kSize > 16) |
| EXPECT_DEATH(A[kSize + 31] = 0, expected_death); |
| } |
| |
| TEST(AddressSanitizer, SimpleStackTest) { |
| SizedStackTest<1>(); |
| SizedStackTest<2>(); |
| SizedStackTest<3>(); |
| SizedStackTest<4>(); |
| SizedStackTest<5>(); |
| SizedStackTest<6>(); |
| SizedStackTest<7>(); |
| SizedStackTest<16>(); |
| SizedStackTest<25>(); |
| SizedStackTest<34>(); |
| SizedStackTest<43>(); |
| SizedStackTest<51>(); |
| SizedStackTest<62>(); |
| SizedStackTest<64>(); |
| SizedStackTest<128>(); |
| } |
| |
| #if !defined(_WIN32) |
| // FIXME: It's a bit hard to write multi-line death test expectations |
| // in a portable way. Anyways, this should just be turned into a lit test. |
| TEST(AddressSanitizer, ManyStackObjectsTest) { |
| char XXX[10]; |
| char YYY[20]; |
| char ZZZ[30]; |
| Ident(XXX); |
| Ident(YYY); |
| EXPECT_DEATH(Ident(ZZZ)[-1] = 0, ASAN_PCRE_DOTALL "XXX.*YYY.*ZZZ"); |
| } |
| #endif |
| |
| #if 0 // This test requires online symbolizer. |
| // Moved to lit_tests/stack-oob-frames.cc. |
| // Reenable here once we have online symbolizer by default. |
| NOINLINE static void Frame0(int frame, char *a, char *b, char *c) { |
| char d[4] = {0}; |
| char *D = Ident(d); |
| switch (frame) { |
| case 3: a[5]++; break; |
| case 2: b[5]++; break; |
| case 1: c[5]++; break; |
| case 0: D[5]++; break; |
| } |
| } |
| NOINLINE static void Frame1(int frame, char *a, char *b) { |
| char c[4] = {0}; Frame0(frame, a, b, c); |
| break_optimization(0); |
| } |
| NOINLINE static void Frame2(int frame, char *a) { |
| char b[4] = {0}; Frame1(frame, a, b); |
| break_optimization(0); |
| } |
| NOINLINE static void Frame3(int frame) { |
| char a[4] = {0}; Frame2(frame, a); |
| break_optimization(0); |
| } |
| |
| TEST(AddressSanitizer, GuiltyStackFrame0Test) { |
| EXPECT_DEATH(Frame3(0), "located .*in frame <.*Frame0"); |
| } |
| TEST(AddressSanitizer, GuiltyStackFrame1Test) { |
| EXPECT_DEATH(Frame3(1), "located .*in frame <.*Frame1"); |
| } |
| TEST(AddressSanitizer, GuiltyStackFrame2Test) { |
| EXPECT_DEATH(Frame3(2), "located .*in frame <.*Frame2"); |
| } |
| TEST(AddressSanitizer, GuiltyStackFrame3Test) { |
| EXPECT_DEATH(Frame3(3), "located .*in frame <.*Frame3"); |
| } |
| #endif |
| |
| NOINLINE void LongJmpFunc1(jmp_buf buf) { |
| // create three red zones for these two stack objects. |
| int a; |
| int b; |
| |
| int *A = Ident(&a); |
| int *B = Ident(&b); |
| *A = *B; |
| longjmp(buf, 1); |
| } |
| |
| NOINLINE void TouchStackFunc() { |
| int a[100]; // long array will intersect with redzones from LongJmpFunc1. |
| int *A = Ident(a); |
| for (int i = 0; i < 100; i++) |
| A[i] = i*i; |
| } |
| |
| // Test that we handle longjmp and do not report false positives on stack. |
| TEST(AddressSanitizer, LongJmpTest) { |
| static jmp_buf buf; |
| if (!setjmp(buf)) { |
| LongJmpFunc1(buf); |
| } else { |
| TouchStackFunc(); |
| } |
| } |
| |
| #if !defined(_WIN32) // Only basic longjmp is available on Windows. |
| NOINLINE void BuiltinLongJmpFunc1(jmp_buf buf) { |
| // create three red zones for these two stack objects. |
| int a; |
| int b; |
| |
| int *A = Ident(&a); |
| int *B = Ident(&b); |
| *A = *B; |
| __builtin_longjmp((void**)buf, 1); |
| } |
| |
| NOINLINE void UnderscopeLongJmpFunc1(jmp_buf buf) { |
| // create three red zones for these two stack objects. |
| int a; |
| int b; |
| |
| int *A = Ident(&a); |
| int *B = Ident(&b); |
| *A = *B; |
| _longjmp(buf, 1); |
| } |
| |
| NOINLINE void SigLongJmpFunc1(sigjmp_buf buf) { |
| // create three red zones for these two stack objects. |
| int a; |
| int b; |
| |
| int *A = Ident(&a); |
| int *B = Ident(&b); |
| *A = *B; |
| siglongjmp(buf, 1); |
| } |
| |
| #if !defined(__ANDROID__) && \ |
| !defined(__powerpc64__) && !defined(__powerpc__) |
| // Does not work on Power: |
| // https://code.google.com/p/address-sanitizer/issues/detail?id=185 |
| TEST(AddressSanitizer, BuiltinLongJmpTest) { |
| static jmp_buf buf; |
| if (!__builtin_setjmp((void**)buf)) { |
| BuiltinLongJmpFunc1(buf); |
| } else { |
| TouchStackFunc(); |
| } |
| } |
| #endif // !defined(__ANDROID__) && !defined(__powerpc64__) && |
| // !defined(__powerpc__) |
| |
| TEST(AddressSanitizer, UnderscopeLongJmpTest) { |
| static jmp_buf buf; |
| if (!_setjmp(buf)) { |
| UnderscopeLongJmpFunc1(buf); |
| } else { |
| TouchStackFunc(); |
| } |
| } |
| |
| TEST(AddressSanitizer, SigLongJmpTest) { |
| static sigjmp_buf buf; |
| if (!sigsetjmp(buf, 1)) { |
| SigLongJmpFunc1(buf); |
| } else { |
| TouchStackFunc(); |
| } |
| } |
| #endif |
| |
| // FIXME: Why does clang-cl define __EXCEPTIONS? |
| #if defined(__EXCEPTIONS) && !defined(_WIN32) |
| NOINLINE void ThrowFunc() { |
| // create three red zones for these two stack objects. |
| int a; |
| int b; |
| |
| int *A = Ident(&a); |
| int *B = Ident(&b); |
| *A = *B; |
| ASAN_THROW(1); |
| } |
| |
| TEST(AddressSanitizer, CxxExceptionTest) { |
| if (ASAN_UAR) return; |
| // TODO(kcc): this test crashes on 32-bit for some reason... |
| if (SANITIZER_WORDSIZE == 32) return; |
| try { |
| ThrowFunc(); |
| } catch(...) {} |
| TouchStackFunc(); |
| } |
| #endif |
| |
| void *ThreadStackReuseFunc1(void *unused) { |
| // create three red zones for these two stack objects. |
| int a; |
| int b; |
| |
| int *A = Ident(&a); |
| int *B = Ident(&b); |
| *A = *B; |
| pthread_exit(0); |
| return 0; |
| } |
| |
| void *ThreadStackReuseFunc2(void *unused) { |
| TouchStackFunc(); |
| return 0; |
| } |
| |
| TEST(AddressSanitizer, ThreadStackReuseTest) { |
| pthread_t t; |
| PTHREAD_CREATE(&t, 0, ThreadStackReuseFunc1, 0); |
| PTHREAD_JOIN(t, 0); |
| PTHREAD_CREATE(&t, 0, ThreadStackReuseFunc2, 0); |
| PTHREAD_JOIN(t, 0); |
| } |
| |
| #if defined(__i686__) || defined(__x86_64__) |
| #include <emmintrin.h> |
| TEST(AddressSanitizer, Store128Test) { |
| char *a = Ident((char*)malloc(Ident(12))); |
| char *p = a; |
| if (((uintptr_t)a % 16) != 0) |
| p = a + 8; |
| assert(((uintptr_t)p % 16) == 0); |
| __m128i value_wide = _mm_set1_epi16(0x1234); |
| EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), |
| "AddressSanitizer: heap-buffer-overflow"); |
| EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), |
| "WRITE of size 16"); |
| EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), |
| "located 0 bytes to the right of 12-byte"); |
| free(a); |
| } |
| #endif |
| |
| // FIXME: All tests that use this function should be turned into lit tests. |
| string RightOOBErrorMessage(int oob_distance, bool is_write) { |
| assert(oob_distance >= 0); |
| char expected_str[100]; |
| sprintf(expected_str, ASAN_PCRE_DOTALL |
| #if !GTEST_USES_SIMPLE_RE |
| "buffer-overflow.*%s.*" |
| #endif |
| "located %d bytes to the right", |
| #if !GTEST_USES_SIMPLE_RE |
| is_write ? "WRITE" : "READ", |
| #endif |
| oob_distance); |
| return string(expected_str); |
| } |
| |
| string RightOOBWriteMessage(int oob_distance) { |
| return RightOOBErrorMessage(oob_distance, /*is_write*/true); |
| } |
| |
| string RightOOBReadMessage(int oob_distance) { |
| return RightOOBErrorMessage(oob_distance, /*is_write*/false); |
| } |
| |
| // FIXME: All tests that use this function should be turned into lit tests. |
| string LeftOOBErrorMessage(int oob_distance, bool is_write) { |
| assert(oob_distance > 0); |
| char expected_str[100]; |
| sprintf(expected_str, |
| #if !GTEST_USES_SIMPLE_RE |
| ASAN_PCRE_DOTALL "%s.*" |
| #endif |
| "located %d bytes to the left", |
| #if !GTEST_USES_SIMPLE_RE |
| is_write ? "WRITE" : "READ", |
| #endif |
| oob_distance); |
| return string(expected_str); |
| } |
| |
| string LeftOOBWriteMessage(int oob_distance) { |
| return LeftOOBErrorMessage(oob_distance, /*is_write*/true); |
| } |
| |
| string LeftOOBReadMessage(int oob_distance) { |
| return LeftOOBErrorMessage(oob_distance, /*is_write*/false); |
| } |
| |
| string LeftOOBAccessMessage(int oob_distance) { |
| assert(oob_distance > 0); |
| char expected_str[100]; |
| sprintf(expected_str, "located %d bytes to the left", oob_distance); |
| return string(expected_str); |
| } |
| |
| char* MallocAndMemsetString(size_t size, char ch) { |
| char *s = Ident((char*)malloc(size)); |
| memset(s, ch, size); |
| return s; |
| } |
| |
| char* MallocAndMemsetString(size_t size) { |
| return MallocAndMemsetString(size, 'z'); |
| } |
| |
| #if defined(__linux__) && !defined(ANDROID) && !defined(__ANDROID__) |
| #define READ_TEST(READ_N_BYTES) \ |
| char *x = new char[10]; \ |
| int fd = open("/proc/self/stat", O_RDONLY); \ |
| ASSERT_GT(fd, 0); \ |
| EXPECT_DEATH(READ_N_BYTES, \ |
| ASAN_PCRE_DOTALL \ |
| "AddressSanitizer: heap-buffer-overflow" \ |
| ".* is located 0 bytes to the right of 10-byte region"); \ |
| close(fd); \ |
| delete [] x; \ |
| |
| TEST(AddressSanitizer, pread) { |
| READ_TEST(pread(fd, x, 15, 0)); |
| } |
| |
| TEST(AddressSanitizer, pread64) { |
| READ_TEST(pread64(fd, x, 15, 0)); |
| } |
| |
| TEST(AddressSanitizer, read) { |
| READ_TEST(read(fd, x, 15)); |
| } |
| #endif // defined(__linux__) && !defined(ANDROID) && !defined(__ANDROID__) |
| |
| // This test case fails |
| // Clang optimizes memcpy/memset calls which lead to unaligned access |
| TEST(AddressSanitizer, DISABLED_MemIntrinsicUnalignedAccessTest) { |
| int size = Ident(4096); |
| char *s = Ident((char*)malloc(size)); |
| EXPECT_DEATH(memset(s + size - 1, 0, 2), RightOOBWriteMessage(0)); |
| free(s); |
| } |
| |
| // TODO(samsonov): Add a test with malloc(0) |
| // TODO(samsonov): Add tests for str* and mem* functions. |
| |
| NOINLINE static int LargeFunction(bool do_bad_access) { |
| int *x = new int[100]; |
| x[0]++; |
| x[1]++; |
| x[2]++; |
| x[3]++; |
| x[4]++; |
| x[5]++; |
| x[6]++; |
| x[7]++; |
| x[8]++; |
| x[9]++; |
| |
| x[do_bad_access ? 100 : 0]++; int res = __LINE__; |
| |
| x[10]++; |
| x[11]++; |
| x[12]++; |
| x[13]++; |
| x[14]++; |
| x[15]++; |
| x[16]++; |
| x[17]++; |
| x[18]++; |
| x[19]++; |
| |
| delete[] x; |
| return res; |
| } |
| |
| // Test the we have correct debug info for the failing instruction. |
| // This test requires the in-process symbolizer to be enabled by default. |
| TEST(AddressSanitizer, DISABLED_LargeFunctionSymbolizeTest) { |
| int failing_line = LargeFunction(false); |
| char expected_warning[128]; |
| sprintf(expected_warning, "LargeFunction.*asan_test.*:%d", failing_line); |
| EXPECT_DEATH(LargeFunction(true), expected_warning); |
| } |
| |
| // Check that we unwind and symbolize correctly. |
| TEST(AddressSanitizer, DISABLED_MallocFreeUnwindAndSymbolizeTest) { |
| int *a = (int*)malloc_aaa(sizeof(int)); |
| *a = 1; |
| free_aaa(a); |
| EXPECT_DEATH(*a = 1, "free_ccc.*free_bbb.*free_aaa.*" |
| "malloc_fff.*malloc_eee.*malloc_ddd"); |
| } |
| |
| static bool TryToSetThreadName(const char *name) { |
| #if defined(__linux__) && defined(PR_SET_NAME) |
| return 0 == prctl(PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
| #else |
| return false; |
| #endif |
| } |
| |
| void *ThreadedTestAlloc(void *a) { |
| EXPECT_EQ(true, TryToSetThreadName("AllocThr")); |
| int **p = (int**)a; |
| *p = new int; |
| return 0; |
| } |
| |
| void *ThreadedTestFree(void *a) { |
| EXPECT_EQ(true, TryToSetThreadName("FreeThr")); |
| int **p = (int**)a; |
| delete *p; |
| return 0; |
| } |
| |
| void *ThreadedTestUse(void *a) { |
| EXPECT_EQ(true, TryToSetThreadName("UseThr")); |
| int **p = (int**)a; |
| **p = 1; |
| return 0; |
| } |
| |
| void ThreadedTestSpawn() { |
| pthread_t t; |
| int *x; |
| PTHREAD_CREATE(&t, 0, ThreadedTestAlloc, &x); |
| PTHREAD_JOIN(t, 0); |
| PTHREAD_CREATE(&t, 0, ThreadedTestFree, &x); |
| PTHREAD_JOIN(t, 0); |
| PTHREAD_CREATE(&t, 0, ThreadedTestUse, &x); |
| PTHREAD_JOIN(t, 0); |
| } |
| |
| #if !defined(_WIN32) // FIXME: This should be a lit test. |
| TEST(AddressSanitizer, ThreadedTest) { |
| EXPECT_DEATH(ThreadedTestSpawn(), |
| ASAN_PCRE_DOTALL |
| "Thread T.*created" |
| ".*Thread T.*created" |
| ".*Thread T.*created"); |
| } |
| #endif |
| |
| void *ThreadedTestFunc(void *unused) { |
| // Check if prctl(PR_SET_NAME) is supported. Return if not. |
| if (!TryToSetThreadName("TestFunc")) |
| return 0; |
| EXPECT_DEATH(ThreadedTestSpawn(), |
| ASAN_PCRE_DOTALL |
| "WRITE .*thread T. .UseThr." |
| ".*freed by thread T. .FreeThr. here:" |
| ".*previously allocated by thread T. .AllocThr. here:" |
| ".*Thread T. .UseThr. created by T.*TestFunc" |
| ".*Thread T. .FreeThr. created by T" |
| ".*Thread T. .AllocThr. created by T" |
| ""); |
| return 0; |
| } |
| |
| TEST(AddressSanitizer, ThreadNamesTest) { |
| // Run ThreadedTestFunc in a separate thread because it tries to set a |
| // thread name and we don't want to change the main thread's name. |
| pthread_t t; |
| PTHREAD_CREATE(&t, 0, ThreadedTestFunc, 0); |
| PTHREAD_JOIN(t, 0); |
| } |
| |
| #if ASAN_NEEDS_SEGV |
| TEST(AddressSanitizer, ShadowGapTest) { |
| #if SANITIZER_WORDSIZE == 32 |
| char *addr = (char*)0x22000000; |
| #else |
| # if defined(__powerpc64__) |
| char *addr = (char*)0x024000800000; |
| # else |
| char *addr = (char*)0x0000100000080000; |
| # endif |
| #endif |
| EXPECT_DEATH(*addr = 1, "AddressSanitizer: SEGV on unknown"); |
| } |
| #endif // ASAN_NEEDS_SEGV |
| |
| extern "C" { |
| NOINLINE static void UseThenFreeThenUse() { |
| char *x = Ident((char*)malloc(8)); |
| *x = 1; |
| free_aaa(x); |
| *x = 2; |
| } |
| } |
| |
| TEST(AddressSanitizer, UseThenFreeThenUseTest) { |
| EXPECT_DEATH(UseThenFreeThenUse(), "freed by thread"); |
| } |
| |
| TEST(AddressSanitizer, StrDupTest) { |
| free(strdup(Ident("123"))); |
| } |
| |
| // Currently we create and poison redzone at right of global variables. |
| static char static110[110]; |
| const char ConstGlob[7] = {1, 2, 3, 4, 5, 6, 7}; |
| static const char StaticConstGlob[3] = {9, 8, 7}; |
| |
| TEST(AddressSanitizer, GlobalTest) { |
| static char func_static15[15]; |
| |
| static char fs1[10]; |
| static char fs2[10]; |
| static char fs3[10]; |
| |
| glob5[Ident(0)] = 0; |
| glob5[Ident(1)] = 0; |
| glob5[Ident(2)] = 0; |
| glob5[Ident(3)] = 0; |
| glob5[Ident(4)] = 0; |
| |
| EXPECT_DEATH(glob5[Ident(5)] = 0, |
| "0 bytes to the right of global variable.*glob5.* size 5"); |
| EXPECT_DEATH(glob5[Ident(5+6)] = 0, |
| "6 bytes to the right of global variable.*glob5.* size 5"); |
| Ident(static110); // avoid optimizations |
| static110[Ident(0)] = 0; |
| static110[Ident(109)] = 0; |
| EXPECT_DEATH(static110[Ident(110)] = 0, |
| "0 bytes to the right of global variable"); |
| EXPECT_DEATH(static110[Ident(110+7)] = 0, |
| "7 bytes to the right of global variable"); |
| |
| Ident(func_static15); // avoid optimizations |
| func_static15[Ident(0)] = 0; |
| EXPECT_DEATH(func_static15[Ident(15)] = 0, |
| "0 bytes to the right of global variable"); |
| EXPECT_DEATH(func_static15[Ident(15 + 9)] = 0, |
| "9 bytes to the right of global variable"); |
| |
| Ident(fs1); |
| Ident(fs2); |
| Ident(fs3); |
| |
| // We don't create left redzones, so this is not 100% guaranteed to fail. |
| // But most likely will. |
| EXPECT_DEATH(fs2[Ident(-1)] = 0, "is located.*of global variable"); |
| |
| EXPECT_DEATH(Ident(Ident(ConstGlob)[8]), |
| "is located 1 bytes to the right of .*ConstGlob"); |
| EXPECT_DEATH(Ident(Ident(StaticConstGlob)[5]), |
| "is located 2 bytes to the right of .*StaticConstGlob"); |
| |
| // call stuff from another file. |
| GlobalsTest(0); |
| } |
| |
| TEST(AddressSanitizer, GlobalStringConstTest) { |
| static const char *zoo = "FOOBAR123"; |
| const char *p = Ident(zoo); |
| EXPECT_DEATH(Ident(p[15]), "is ascii string 'FOOBAR123'"); |
| } |
| |
| TEST(AddressSanitizer, FileNameInGlobalReportTest) { |
| static char zoo[10]; |
| const char *p = Ident(zoo); |
| // The file name should be present in the report. |
| EXPECT_DEATH(Ident(p[15]), "zoo.*asan_test."); |
| } |
| |
| int *ReturnsPointerToALocalObject() { |
| int a = 0; |
| return Ident(&a); |
| } |
| |
| #if ASAN_UAR == 1 |
| TEST(AddressSanitizer, LocalReferenceReturnTest) { |
| int *(*f)() = Ident(ReturnsPointerToALocalObject); |
| int *p = f(); |
| // Call 'f' a few more times, 'p' should still be poisoned. |
| for (int i = 0; i < 32; i++) |
| f(); |
| EXPECT_DEATH(*p = 1, "AddressSanitizer: stack-use-after-return"); |
| EXPECT_DEATH(*p = 1, "is located.*in frame .*ReturnsPointerToALocal"); |
| } |
| #endif |
| |
| template <int kSize> |
| NOINLINE static void FuncWithStack() { |
| char x[kSize]; |
| Ident(x)[0] = 0; |
| Ident(x)[kSize-1] = 0; |
| } |
| |
| static void LotsOfStackReuse() { |
| int LargeStack[10000]; |
| Ident(LargeStack)[0] = 0; |
| for (int i = 0; i < 10000; i++) { |
| FuncWithStack<128 * 1>(); |
| FuncWithStack<128 * 2>(); |
| FuncWithStack<128 * 4>(); |
| FuncWithStack<128 * 8>(); |
| FuncWithStack<128 * 16>(); |
| FuncWithStack<128 * 32>(); |
| FuncWithStack<128 * 64>(); |
| FuncWithStack<128 * 128>(); |
| FuncWithStack<128 * 256>(); |
| FuncWithStack<128 * 512>(); |
| Ident(LargeStack)[0] = 0; |
| } |
| } |
| |
| TEST(AddressSanitizer, StressStackReuseTest) { |
| LotsOfStackReuse(); |
| } |
| |
| TEST(AddressSanitizer, ThreadedStressStackReuseTest) { |
| const int kNumThreads = 20; |
| pthread_t t[kNumThreads]; |
| for (int i = 0; i < kNumThreads; i++) { |
| PTHREAD_CREATE(&t[i], 0, (void* (*)(void *x))LotsOfStackReuse, 0); |
| } |
| for (int i = 0; i < kNumThreads; i++) { |
| PTHREAD_JOIN(t[i], 0); |
| } |
| } |
| |
| static void *PthreadExit(void *a) { |
| pthread_exit(0); |
| return 0; |
| } |
| |
| TEST(AddressSanitizer, PthreadExitTest) { |
| pthread_t t; |
| for (int i = 0; i < 1000; i++) { |
| PTHREAD_CREATE(&t, 0, PthreadExit, 0); |
| PTHREAD_JOIN(t, 0); |
| } |
| } |
| |
| // FIXME: Why does clang-cl define __EXCEPTIONS? |
| #if defined(__EXCEPTIONS) && !defined(_WIN32) |
| NOINLINE static void StackReuseAndException() { |
| int large_stack[1000]; |
| Ident(large_stack); |
| ASAN_THROW(1); |
| } |
| |
| // TODO(kcc): support exceptions with use-after-return. |
| TEST(AddressSanitizer, DISABLED_StressStackReuseAndExceptionsTest) { |
| for (int i = 0; i < 10000; i++) { |
| try { |
| StackReuseAndException(); |
| } catch(...) { |
| } |
| } |
| } |
| #endif |
| |
| #if !defined(_WIN32) |
| TEST(AddressSanitizer, MlockTest) { |
| EXPECT_EQ(0, mlockall(MCL_CURRENT)); |
| EXPECT_EQ(0, mlock((void*)0x12345, 0x5678)); |
| EXPECT_EQ(0, munlockall()); |
| EXPECT_EQ(0, munlock((void*)0x987, 0x654)); |
| } |
| #endif |
| |
| struct LargeStruct { |
| int foo[100]; |
| }; |
| |
| // Test for bug http://llvm.org/bugs/show_bug.cgi?id=11763. |
| // Struct copy should not cause asan warning even if lhs == rhs. |
| TEST(AddressSanitizer, LargeStructCopyTest) { |
| LargeStruct a; |
| *Ident(&a) = *Ident(&a); |
| } |
| |
| ATTRIBUTE_NO_SANITIZE_ADDRESS |
| static void NoSanitizeAddress() { |
| char *foo = new char[10]; |
| Ident(foo)[10] = 0; |
| delete [] foo; |
| } |
| |
| TEST(AddressSanitizer, AttributeNoSanitizeAddressTest) { |
| Ident(NoSanitizeAddress)(); |
| } |
| |
| // The new/delete/etc mismatch checks don't work on Android, |
| // as calls to new/delete go through malloc/free. |
| // OS X support is tracked here: |
| // https://code.google.com/p/address-sanitizer/issues/detail?id=131 |
| // Windows support is tracked here: |
| // https://code.google.com/p/address-sanitizer/issues/detail?id=309 |
| #if !defined(ANDROID) && !defined(__ANDROID__) && \ |
| !defined(__APPLE__) && \ |
| !defined(_WIN32) |
| static string MismatchStr(const string &str) { |
| return string("AddressSanitizer: alloc-dealloc-mismatch \\(") + str; |
| } |
| |
| TEST(AddressSanitizer, AllocDeallocMismatch) { |
| EXPECT_DEATH(free(Ident(new int)), |
| MismatchStr("operator new vs free")); |
| EXPECT_DEATH(free(Ident(new int[2])), |
| MismatchStr("operator new \\[\\] vs free")); |
| EXPECT_DEATH(delete (Ident(new int[2])), |
| MismatchStr("operator new \\[\\] vs operator delete")); |
| EXPECT_DEATH(delete (Ident((int*)malloc(2 * sizeof(int)))), |
| MismatchStr("malloc vs operator delete")); |
| EXPECT_DEATH(delete [] (Ident(new int)), |
| MismatchStr("operator new vs operator delete \\[\\]")); |
| EXPECT_DEATH(delete [] (Ident((int*)malloc(2 * sizeof(int)))), |
| MismatchStr("malloc vs operator delete \\[\\]")); |
| } |
| #endif |
| |
| // ------------------ demo tests; run each one-by-one ------------- |
| // e.g. --gtest_filter=*DemoOOBLeftHigh --gtest_also_run_disabled_tests |
| TEST(AddressSanitizer, DISABLED_DemoThreadedTest) { |
| ThreadedTestSpawn(); |
| } |
| |
| void *SimpleBugOnSTack(void *x = 0) { |
| char a[20]; |
| Ident(a)[20] = 0; |
| return 0; |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoStackTest) { |
| SimpleBugOnSTack(); |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoThreadStackTest) { |
| pthread_t t; |
| PTHREAD_CREATE(&t, 0, SimpleBugOnSTack, 0); |
| PTHREAD_JOIN(t, 0); |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoUAFLowIn) { |
| uaf_test<U1>(10, 0); |
| } |
| TEST(AddressSanitizer, DISABLED_DemoUAFLowLeft) { |
| uaf_test<U1>(10, -2); |
| } |
| TEST(AddressSanitizer, DISABLED_DemoUAFLowRight) { |
| uaf_test<U1>(10, 10); |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoUAFHigh) { |
| uaf_test<U1>(kLargeMalloc, 0); |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoOOM) { |
| size_t size = SANITIZER_WORDSIZE == 64 ? (size_t)(1ULL << 40) : (0xf0000000); |
| printf("%p\n", malloc(size)); |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoDoubleFreeTest) { |
| DoubleFree(); |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoNullDerefTest) { |
| int *a = 0; |
| Ident(a)[10] = 0; |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoFunctionStaticTest) { |
| static char a[100]; |
| static char b[100]; |
| static char c[100]; |
| Ident(a); |
| Ident(b); |
| Ident(c); |
| Ident(a)[5] = 0; |
| Ident(b)[105] = 0; |
| Ident(a)[5] = 0; |
| } |
| |
| TEST(AddressSanitizer, DISABLED_DemoTooMuchMemoryTest) { |
| const size_t kAllocSize = (1 << 28) - 1024; |
| size_t total_size = 0; |
| while (true) { |
| char *x = (char*)malloc(kAllocSize); |
| memset(x, 0, kAllocSize); |
| total_size += kAllocSize; |
| fprintf(stderr, "total: %ldM %p\n", (long)total_size >> 20, x); |
| } |
| } |
| |
| // http://code.google.com/p/address-sanitizer/issues/detail?id=66 |
| TEST(AddressSanitizer, BufferOverflowAfterManyFrees) { |
| for (int i = 0; i < 1000000; i++) { |
| delete [] (Ident(new char [8644])); |
| } |
| char *x = new char[8192]; |
| EXPECT_DEATH(x[Ident(8192)] = 0, "AddressSanitizer: heap-buffer-overflow"); |
| delete [] Ident(x); |
| } |
| |
| |
| // Test that instrumentation of stack allocations takes into account |
| // AllocSize of a type, and not its StoreSize (16 vs 10 bytes for long double). |
| // See http://llvm.org/bugs/show_bug.cgi?id=12047 for more details. |
| TEST(AddressSanitizer, LongDoubleNegativeTest) { |
| long double a, b; |
| static long double c; |
| memcpy(Ident(&a), Ident(&b), sizeof(long double)); |
| memcpy(Ident(&c), Ident(&b), sizeof(long double)); |
| } |
| |
| #if !defined(_WIN32) |
| TEST(AddressSanitizer, pthread_getschedparam) { |
| int policy; |
| struct sched_param param; |
| EXPECT_DEATH( |
| pthread_getschedparam(pthread_self(), &policy, Ident(¶m) + 2), |
| "AddressSanitizer: stack-buffer-.*flow"); |
| EXPECT_DEATH( |
| pthread_getschedparam(pthread_self(), Ident(&policy) - 1, ¶m), |
| "AddressSanitizer: stack-buffer-.*flow"); |
| int res = pthread_getschedparam(pthread_self(), &policy, ¶m); |
| ASSERT_EQ(0, res); |
| } |
| #endif |