forked from OSchip/llvm-project
1326 lines
36 KiB
C++
1326 lines
36 KiB
C++
//===-- asan_test.cc ------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of AddressSanitizer, an address sanity checker.
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//
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//===----------------------------------------------------------------------===//
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#include "asan_test_utils.h"
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NOINLINE void *malloc_fff(size_t size) {
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void *res = malloc/**/(size); break_optimization(0); return res;}
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NOINLINE void *malloc_eee(size_t size) {
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void *res = malloc_fff(size); break_optimization(0); return res;}
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NOINLINE void *malloc_ddd(size_t size) {
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void *res = malloc_eee(size); break_optimization(0); return res;}
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NOINLINE void *malloc_ccc(size_t size) {
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void *res = malloc_ddd(size); break_optimization(0); return res;}
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NOINLINE void *malloc_bbb(size_t size) {
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void *res = malloc_ccc(size); break_optimization(0); return res;}
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NOINLINE void *malloc_aaa(size_t size) {
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void *res = malloc_bbb(size); break_optimization(0); return res;}
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NOINLINE void free_ccc(void *p) { free(p); break_optimization(0);}
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NOINLINE void free_bbb(void *p) { free_ccc(p); break_optimization(0);}
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NOINLINE void free_aaa(void *p) { free_bbb(p); break_optimization(0);}
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template<typename T>
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NOINLINE void uaf_test(int size, int off) {
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void *p = malloc_aaa(size);
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free_aaa(p);
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for (int i = 1; i < 100; i++)
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free_aaa(malloc_aaa(i));
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fprintf(stderr, "writing %ld byte(s) at %p with offset %d\n",
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(long)sizeof(T), p, off);
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asan_write((T *)((char *)p + off));
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}
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TEST(AddressSanitizer, HasFeatureAddressSanitizerTest) {
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#if defined(__has_feature) && __has_feature(address_sanitizer)
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bool asan = 1;
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#elif defined(__SANITIZE_ADDRESS__)
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bool asan = 1;
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#else
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bool asan = 0;
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#endif
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EXPECT_EQ(true, asan);
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}
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TEST(AddressSanitizer, SimpleDeathTest) {
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EXPECT_DEATH(exit(1), "");
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}
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TEST(AddressSanitizer, VariousMallocsTest) {
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int *a = (int*)malloc(100 * sizeof(int));
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a[50] = 0;
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free(a);
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int *r = (int*)malloc(10);
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r = (int*)realloc(r, 2000 * sizeof(int));
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r[1000] = 0;
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free(r);
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int *b = new int[100];
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b[50] = 0;
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delete [] b;
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int *c = new int;
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*c = 0;
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delete c;
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#if SANITIZER_TEST_HAS_POSIX_MEMALIGN
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int *pm;
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int pm_res = posix_memalign((void**)&pm, kPageSize, kPageSize);
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EXPECT_EQ(0, pm_res);
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free(pm);
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#endif // SANITIZER_TEST_HAS_POSIX_MEMALIGN
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#if SANITIZER_TEST_HAS_MEMALIGN
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int *ma = (int*)memalign(kPageSize, kPageSize);
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EXPECT_EQ(0U, (uintptr_t)ma % kPageSize);
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ma[123] = 0;
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free(ma);
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#endif // SANITIZER_TEST_HAS_MEMALIGN
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}
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TEST(AddressSanitizer, CallocTest) {
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int *a = (int*)calloc(100, sizeof(int));
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EXPECT_EQ(0, a[10]);
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free(a);
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}
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TEST(AddressSanitizer, CallocReturnsZeroMem) {
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size_t sizes[] = {16, 1000, 10000, 100000, 2100000};
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for (size_t s = 0; s < sizeof(sizes)/sizeof(sizes[0]); s++) {
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size_t size = sizes[s];
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for (size_t iter = 0; iter < 5; iter++) {
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char *x = Ident((char*)calloc(1, size));
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EXPECT_EQ(x[0], 0);
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EXPECT_EQ(x[size - 1], 0);
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EXPECT_EQ(x[size / 2], 0);
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EXPECT_EQ(x[size / 3], 0);
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EXPECT_EQ(x[size / 4], 0);
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memset(x, 0x42, size);
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free(Ident(x));
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#if !defined(_WIN32)
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// FIXME: OOM on Windows. We should just make this a lit test
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// with quarantine size set to 1.
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free(Ident(malloc(Ident(1 << 27)))); // Try to drain the quarantine.
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#endif
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}
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}
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}
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// No valloc on Windows or Android.
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#if !defined(_WIN32) && !defined(__ANDROID__)
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TEST(AddressSanitizer, VallocTest) {
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void *a = valloc(100);
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EXPECT_EQ(0U, (uintptr_t)a % kPageSize);
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free(a);
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}
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#endif
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#if SANITIZER_TEST_HAS_PVALLOC
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TEST(AddressSanitizer, PvallocTest) {
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char *a = (char*)pvalloc(kPageSize + 100);
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EXPECT_EQ(0U, (uintptr_t)a % kPageSize);
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a[kPageSize + 101] = 1; // we should not report an error here.
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free(a);
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a = (char*)pvalloc(0); // pvalloc(0) should allocate at least one page.
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EXPECT_EQ(0U, (uintptr_t)a % kPageSize);
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a[101] = 1; // we should not report an error here.
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free(a);
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}
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#endif // SANITIZER_TEST_HAS_PVALLOC
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#if !defined(_WIN32)
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// FIXME: Use an equivalent of pthread_setspecific on Windows.
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void *TSDWorker(void *test_key) {
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if (test_key) {
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pthread_setspecific(*(pthread_key_t*)test_key, (void*)0xfeedface);
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}
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return NULL;
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}
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void TSDDestructor(void *tsd) {
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// Spawning a thread will check that the current thread id is not -1.
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pthread_t th;
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PTHREAD_CREATE(&th, NULL, TSDWorker, NULL);
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PTHREAD_JOIN(th, NULL);
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}
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// This tests triggers the thread-specific data destruction fiasco which occurs
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// if we don't manage the TSD destructors ourselves. We create a new pthread
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// key with a non-NULL destructor which is likely to be put after the destructor
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// of AsanThread in the list of destructors.
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// In this case the TSD for AsanThread will be destroyed before TSDDestructor
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// is called for the child thread, and a CHECK will fail when we call
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// pthread_create() to spawn the grandchild.
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TEST(AddressSanitizer, DISABLED_TSDTest) {
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pthread_t th;
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pthread_key_t test_key;
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pthread_key_create(&test_key, TSDDestructor);
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PTHREAD_CREATE(&th, NULL, TSDWorker, &test_key);
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PTHREAD_JOIN(th, NULL);
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pthread_key_delete(test_key);
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}
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#endif
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TEST(AddressSanitizer, UAF_char) {
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const char *uaf_string = "AddressSanitizer:.*heap-use-after-free";
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EXPECT_DEATH(uaf_test<U1>(1, 0), uaf_string);
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EXPECT_DEATH(uaf_test<U1>(10, 0), uaf_string);
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EXPECT_DEATH(uaf_test<U1>(10, 10), uaf_string);
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EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, 0), uaf_string);
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EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, kLargeMalloc / 2), uaf_string);
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}
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TEST(AddressSanitizer, UAF_long_double) {
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if (sizeof(long double) == sizeof(double)) return;
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long double *p = Ident(new long double[10]);
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EXPECT_DEATH(Ident(p)[12] = 0, "WRITE of size 1[026]");
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EXPECT_DEATH(Ident(p)[0] = Ident(p)[12], "READ of size 1[026]");
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delete [] Ident(p);
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}
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#if !defined(_WIN32)
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struct Packed5 {
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int x;
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char c;
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} __attribute__((packed));
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#else
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# pragma pack(push, 1)
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struct Packed5 {
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int x;
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char c;
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};
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# pragma pack(pop)
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#endif
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TEST(AddressSanitizer, UAF_Packed5) {
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static_assert(sizeof(Packed5) == 5, "Please check the keywords used");
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Packed5 *p = Ident(new Packed5[2]);
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EXPECT_DEATH(p[0] = p[3], "READ of size 5");
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EXPECT_DEATH(p[3] = p[0], "WRITE of size 5");
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delete [] Ident(p);
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}
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#if ASAN_HAS_BLACKLIST
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TEST(AddressSanitizer, IgnoreTest) {
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int *x = Ident(new int);
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delete Ident(x);
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*x = 0;
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}
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#endif // ASAN_HAS_BLACKLIST
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struct StructWithBitField {
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int bf1:1;
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int bf2:1;
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int bf3:1;
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int bf4:29;
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};
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TEST(AddressSanitizer, BitFieldPositiveTest) {
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StructWithBitField *x = new StructWithBitField;
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delete Ident(x);
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EXPECT_DEATH(x->bf1 = 0, "use-after-free");
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EXPECT_DEATH(x->bf2 = 0, "use-after-free");
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EXPECT_DEATH(x->bf3 = 0, "use-after-free");
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EXPECT_DEATH(x->bf4 = 0, "use-after-free");
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}
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struct StructWithBitFields_8_24 {
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int a:8;
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int b:24;
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};
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TEST(AddressSanitizer, BitFieldNegativeTest) {
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StructWithBitFields_8_24 *x = Ident(new StructWithBitFields_8_24);
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x->a = 0;
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x->b = 0;
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delete Ident(x);
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}
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#if ASAN_NEEDS_SEGV
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namespace {
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const char kSEGVCrash[] = "AddressSanitizer: SEGV on unknown address";
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const char kOverriddenHandler[] = "ASan signal handler has been overridden\n";
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TEST(AddressSanitizer, WildAddressTest) {
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char *c = (char*)0x123;
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EXPECT_DEATH(*c = 0, kSEGVCrash);
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}
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void my_sigaction_sighandler(int, siginfo_t*, void*) {
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fprintf(stderr, kOverriddenHandler);
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exit(1);
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}
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void my_signal_sighandler(int signum) {
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fprintf(stderr, kOverriddenHandler);
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exit(1);
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}
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TEST(AddressSanitizer, SignalTest) {
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struct sigaction sigact;
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memset(&sigact, 0, sizeof(sigact));
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sigact.sa_sigaction = my_sigaction_sighandler;
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sigact.sa_flags = SA_SIGINFO;
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// ASan should silently ignore sigaction()...
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EXPECT_EQ(0, sigaction(SIGSEGV, &sigact, 0));
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#ifdef __APPLE__
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EXPECT_EQ(0, sigaction(SIGBUS, &sigact, 0));
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#endif
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char *c = (char*)0x123;
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EXPECT_DEATH(*c = 0, kSEGVCrash);
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// ... and signal().
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EXPECT_EQ(0, signal(SIGSEGV, my_signal_sighandler));
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EXPECT_DEATH(*c = 0, kSEGVCrash);
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}
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} // namespace
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#endif
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static void TestLargeMalloc(size_t size) {
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char buff[1024];
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sprintf(buff, "is located 1 bytes to the left of %lu-byte", (long)size);
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EXPECT_DEATH(Ident((char*)malloc(size))[-1] = 0, buff);
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}
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TEST(AddressSanitizer, LargeMallocTest) {
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const int max_size = (SANITIZER_WORDSIZE == 32) ? 1 << 26 : 1 << 28;
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for (int i = 113; i < max_size; i = i * 2 + 13) {
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TestLargeMalloc(i);
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}
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}
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TEST(AddressSanitizer, HugeMallocTest) {
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if (SANITIZER_WORDSIZE != 64 || ASAN_AVOID_EXPENSIVE_TESTS) return;
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size_t n_megs = 4100;
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EXPECT_DEATH(Ident((char*)malloc(n_megs << 20))[-1] = 0,
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"is located 1 bytes to the left|"
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"AddressSanitizer failed to allocate");
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}
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#if SANITIZER_TEST_HAS_MEMALIGN
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void MemalignRun(size_t align, size_t size, int idx) {
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char *p = (char *)memalign(align, size);
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Ident(p)[idx] = 0;
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free(p);
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}
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TEST(AddressSanitizer, memalign) {
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for (int align = 16; align <= (1 << 23); align *= 2) {
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size_t size = align * 5;
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EXPECT_DEATH(MemalignRun(align, size, -1),
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"is located 1 bytes to the left");
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EXPECT_DEATH(MemalignRun(align, size, size + 1),
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"is located 1 bytes to the right");
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}
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}
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#endif // SANITIZER_TEST_HAS_MEMALIGN
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void *ManyThreadsWorker(void *a) {
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for (int iter = 0; iter < 100; iter++) {
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for (size_t size = 100; size < 2000; size *= 2) {
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free(Ident(malloc(size)));
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}
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}
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return 0;
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}
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#if !defined(__aarch64__)
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// FIXME: Infinite loop in AArch64 (PR24389).
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TEST(AddressSanitizer, ManyThreadsTest) {
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const size_t kNumThreads =
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(SANITIZER_WORDSIZE == 32 || ASAN_AVOID_EXPENSIVE_TESTS) ? 30 : 1000;
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pthread_t t[kNumThreads];
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for (size_t i = 0; i < kNumThreads; i++) {
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PTHREAD_CREATE(&t[i], 0, ManyThreadsWorker, (void*)i);
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}
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for (size_t i = 0; i < kNumThreads; i++) {
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PTHREAD_JOIN(t[i], 0);
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}
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}
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#endif
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TEST(AddressSanitizer, ReallocTest) {
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const int kMinElem = 5;
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int *ptr = (int*)malloc(sizeof(int) * kMinElem);
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ptr[3] = 3;
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for (int i = 0; i < 10000; i++) {
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ptr = (int*)realloc(ptr,
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(my_rand() % 1000 + kMinElem) * sizeof(int));
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EXPECT_EQ(3, ptr[3]);
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}
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free(ptr);
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// Realloc pointer returned by malloc(0).
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int *ptr2 = Ident((int*)malloc(0));
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ptr2 = Ident((int*)realloc(ptr2, sizeof(*ptr2)));
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*ptr2 = 42;
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EXPECT_EQ(42, *ptr2);
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free(ptr2);
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}
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TEST(AddressSanitizer, ReallocFreedPointerTest) {
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void *ptr = Ident(malloc(42));
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ASSERT_TRUE(NULL != ptr);
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free(ptr);
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EXPECT_DEATH(ptr = realloc(ptr, 77), "attempting double-free");
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}
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TEST(AddressSanitizer, ReallocInvalidPointerTest) {
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void *ptr = Ident(malloc(42));
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EXPECT_DEATH(ptr = realloc((int*)ptr + 1, 77), "attempting free.*not malloc");
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free(ptr);
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}
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TEST(AddressSanitizer, ZeroSizeMallocTest) {
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// Test that malloc(0) and similar functions don't return NULL.
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void *ptr = Ident(malloc(0));
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EXPECT_TRUE(NULL != ptr);
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free(ptr);
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#if SANITIZER_TEST_HAS_POSIX_MEMALIGN
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int pm_res = posix_memalign(&ptr, 1<<20, 0);
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EXPECT_EQ(0, pm_res);
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EXPECT_TRUE(NULL != ptr);
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free(ptr);
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#endif // SANITIZER_TEST_HAS_POSIX_MEMALIGN
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int *int_ptr = new int[0];
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int *int_ptr2 = new int[0];
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EXPECT_TRUE(NULL != int_ptr);
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EXPECT_TRUE(NULL != int_ptr2);
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EXPECT_NE(int_ptr, int_ptr2);
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delete[] int_ptr;
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delete[] int_ptr2;
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}
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#if SANITIZER_TEST_HAS_MALLOC_USABLE_SIZE
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static const char *kMallocUsableSizeErrorMsg =
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"AddressSanitizer: attempting to call malloc_usable_size()";
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TEST(AddressSanitizer, MallocUsableSizeTest) {
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const size_t kArraySize = 100;
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char *array = Ident((char*)malloc(kArraySize));
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int *int_ptr = Ident(new int);
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EXPECT_EQ(0U, malloc_usable_size(NULL));
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EXPECT_EQ(kArraySize, malloc_usable_size(array));
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EXPECT_EQ(sizeof(int), malloc_usable_size(int_ptr));
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EXPECT_DEATH(malloc_usable_size((void*)0x123), kMallocUsableSizeErrorMsg);
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EXPECT_DEATH(malloc_usable_size(array + kArraySize / 2),
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kMallocUsableSizeErrorMsg);
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free(array);
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EXPECT_DEATH(malloc_usable_size(array), kMallocUsableSizeErrorMsg);
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delete int_ptr;
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}
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#endif // SANITIZER_TEST_HAS_MALLOC_USABLE_SIZE
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void WrongFree() {
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int *x = (int*)malloc(100 * sizeof(int));
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// Use the allocated memory, otherwise Clang will optimize it out.
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Ident(x);
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free(x + 1);
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}
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#if !defined(_WIN32) // FIXME: This should be a lit test.
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TEST(AddressSanitizer, WrongFreeTest) {
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EXPECT_DEATH(WrongFree(), ASAN_PCRE_DOTALL
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"ERROR: AddressSanitizer: attempting free.*not malloc"
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".*is located 4 bytes inside of 400-byte region"
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".*allocated by thread");
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}
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#endif
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void DoubleFree() {
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int *x = (int*)malloc(100 * sizeof(int));
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fprintf(stderr, "DoubleFree: x=%p\n", (void *)x);
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free(x);
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free(x);
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fprintf(stderr, "should have failed in the second free(%p)\n", (void *)x);
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abort();
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}
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#if !defined(_WIN32) // FIXME: This should be a lit test.
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TEST(AddressSanitizer, DoubleFreeTest) {
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EXPECT_DEATH(DoubleFree(), ASAN_PCRE_DOTALL
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"ERROR: AddressSanitizer: attempting double-free"
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".*is located 0 bytes inside of 400-byte region"
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".*freed by thread T0 here"
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".*previously allocated by thread T0 here");
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}
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#endif
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template<int kSize>
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NOINLINE void SizedStackTest() {
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char a[kSize];
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char *A = Ident((char*)&a);
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const char *expected_death = "AddressSanitizer: stack-buffer-";
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for (size_t i = 0; i < kSize; i++)
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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 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(__arm__) && \
|
|
!defined(__powerpc64__) && !defined(__powerpc__) && \
|
|
!defined(__aarch64__) && !defined(__mips__) && \
|
|
!defined(__mips64)
|
|
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);
|
|
}
|
|
|
|
// Does not work on Power and ARM:
|
|
// https://github.com/google/sanitizers/issues/185
|
|
TEST(AddressSanitizer, BuiltinLongJmpTest) {
|
|
static jmp_buf buf;
|
|
if (!__builtin_setjmp((void**)buf)) {
|
|
BuiltinLongJmpFunc1(buf);
|
|
} else {
|
|
TouchStackFunc();
|
|
}
|
|
}
|
|
#endif // !defined(__ANDROID__) && !defined(__powerpc64__) &&
|
|
// !defined(__powerpc__) && !defined(__arm__) &&
|
|
// !defined(__mips__) && !defined(__mips64)
|
|
|
|
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__)
|
|
#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__)
|
|
|
|
// 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);
|
|
}
|
|
|
|
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://github.com/google/sanitizers/issues/131
|
|
// Windows support is tracked here:
|
|
// https://github.com/google/sanitizers/issues/309
|
|
#if !defined(__ANDROID__) && \
|
|
!defined(__APPLE__) && \
|
|
!defined(_WIN32)
|
|
static string MismatchStr(const string &str) {
|
|
return string("AddressSanitizer: alloc-dealloc-mismatch \\(") + str;
|
|
}
|
|
|
|
static string MismatchOrNewDeleteTypeStr(const string &mismatch_str) {
|
|
return "(" + MismatchStr(mismatch_str) +
|
|
")|(AddressSanitizer: new-delete-type-mismatch)";
|
|
}
|
|
|
|
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])),
|
|
MismatchOrNewDeleteTypeStr("operator new \\[\\] vs operator delete"));
|
|
EXPECT_DEATH(delete (Ident((int *)malloc(2 * sizeof(int)))),
|
|
MismatchOrNewDeleteTypeStr("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) {
|
|
void *x = malloc(kAllocSize);
|
|
memset(x, 0, kAllocSize);
|
|
total_size += kAllocSize;
|
|
fprintf(stderr, "total: %ldM %p\n", (long)total_size >> 20, x);
|
|
}
|
|
}
|
|
|
|
// https://github.com/google/sanitizers/issues/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
|
|
|
|
#if SANITIZER_TEST_HAS_PRINTF_L
|
|
static int vsnprintf_l_wrapper(char *s, size_t n,
|
|
locale_t l, const char *format, ...) {
|
|
va_list va;
|
|
va_start(va, format);
|
|
int res = vsnprintf_l(s, n , l, format, va);
|
|
va_end(va);
|
|
return res;
|
|
}
|
|
|
|
TEST(AddressSanitizer, snprintf_l) {
|
|
char buff[5];
|
|
// Check that snprintf_l() works fine with Asan.
|
|
int res = snprintf_l(buff, 5,
|
|
_LIBCPP_GET_C_LOCALE, "%s", "snprintf_l()");
|
|
EXPECT_EQ(12, res);
|
|
// Check that vsnprintf_l() works fine with Asan.
|
|
res = vsnprintf_l_wrapper(buff, 5,
|
|
_LIBCPP_GET_C_LOCALE, "%s", "vsnprintf_l()");
|
|
EXPECT_EQ(13, res);
|
|
|
|
EXPECT_DEATH(snprintf_l(buff, 10,
|
|
_LIBCPP_GET_C_LOCALE, "%s", "snprintf_l()"),
|
|
"AddressSanitizer: stack-buffer-overflow");
|
|
EXPECT_DEATH(vsnprintf_l_wrapper(buff, 10,
|
|
_LIBCPP_GET_C_LOCALE, "%s", "vsnprintf_l()"),
|
|
"AddressSanitizer: stack-buffer-overflow");
|
|
}
|
|
#endif
|