asan_test.cc revision fe6d91684bcda766593800f6307233f1a33d31f6
1b0ddf227b25388ad836e560c00f0aec84026b0e5Alexey Samsonov//===-- asan_test.cc ------------------------------------------------------===// 21e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 31e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// The LLVM Compiler Infrastructure 41e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 51e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This file is distributed under the University of Illinois Open Source 61e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// License. See LICENSE.TXT for details. 71e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 81e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===----------------------------------------------------------------------===// 91e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This file is a part of AddressSanitizer, an address sanity checker. 111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===----------------------------------------------------------------------===// 131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <stdio.h> 141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <signal.h> 151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <stdlib.h> 161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <string.h> 17af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany#include <strings.h> 181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <pthread.h> 191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <stdint.h> 201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <setjmp.h> 211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <assert.h> 221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 23716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#ifdef __linux__ 24716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany# include <sys/prctl.h> 258530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany# include <sys/types.h> 268530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany# include <sys/stat.h> 278530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany# include <fcntl.h> 28716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#endif 29716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany 30f6607d097833cd53460735c1a5a2fd52b97613ebTimur Iskhodzhanov#if defined(__i386__) || defined(__x86_64__) 311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <emmintrin.h> 321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include "asan_test_utils.h" 351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <malloc.h> 38fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko#else 39ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko#include <malloc/malloc.h> 400503ce8824393174c17acb26d62551f18a0fd82aAlexander Potapenko#include <AvailabilityMacros.h> // For MAC_OS_X_VERSION_* 41fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko#include <CoreFoundation/CFString.h> 421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_HAS_EXCEPTIONS 451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany# define ASAN_THROW(x) throw (x) 461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany# define ASAN_THROW(x) 481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include <sys/mman.h> 511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytypedef uint8_t U1; 531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytypedef uint16_t U2; 541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytypedef uint32_t U4; 551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytypedef uint64_t U8; 561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic const int kPageSize = 4096; 581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Simple stand-alone pseudorandom number generator. 601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Current algorithm is ANSI C linear congruential PRNG. 611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic inline uint32_t my_rand(uint32_t* state) { 621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return (*state = *state * 1103515245 + 12345) >> 16; 631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic uint32_t global_seed = 0; 661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyconst size_t kLargeMalloc = 1 << 24; 681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 692dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate<typename T> 70938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void asan_write(T *a) { 711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *a = 0; 721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 74938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void asan_write_sized_aligned(uint8_t *p, size_t size) { 7576e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, ((uintptr_t)p % size)); 761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (size == 1) asan_write((uint8_t*)p); 771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany else if (size == 2) asan_write((uint16_t*)p); 781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany else if (size == 4) asan_write((uint32_t*)p); 791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany else if (size == 8) asan_write((uint64_t*)p); 801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 82938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_fff(size_t size) { 831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc/**/(size); break_optimization(0); return res;} 84938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_eee(size_t size) { 851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_fff(size); break_optimization(0); return res;} 86938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_ddd(size_t size) { 871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_eee(size); break_optimization(0); return res;} 88938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_ccc(size_t size) { 891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_ddd(size); break_optimization(0); return res;} 90938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_bbb(size_t size) { 911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_ccc(size); break_optimization(0); return res;} 92938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_aaa(size_t size) { 931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_bbb(size); break_optimization(0); return res;} 941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 96938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_fff(size_t alignment, size_t size) { 971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign/**/(alignment, size); break_optimization(0); return res;} 98938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_eee(size_t alignment, size_t size) { 991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_fff(alignment, size); break_optimization(0); return res;} 100938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_ddd(size_t alignment, size_t size) { 1011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_eee(alignment, size); break_optimization(0); return res;} 102938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_ccc(size_t alignment, size_t size) { 1031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_ddd(alignment, size); break_optimization(0); return res;} 104938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_bbb(size_t alignment, size_t size) { 1051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_ccc(alignment, size); break_optimization(0); return res;} 106938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_aaa(size_t alignment, size_t size) { 1071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_bbb(alignment, size); break_optimization(0); return res;} 1081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 1091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 111938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void free_ccc(void *p) { free(p); break_optimization(0);} 112938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void free_bbb(void *p) { free_ccc(p); break_optimization(0);} 113938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void free_aaa(void *p) { free_bbb(p); break_optimization(0);} 1141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1152dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate<typename T> 116938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void oob_test(int size, int off) { 1171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *p = (char*)malloc_aaa(size); 1181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // fprintf(stderr, "writing %d byte(s) into [%p,%p) with offset %d\n", 1191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // sizeof(T), p, p + size, off); 1201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany asan_write((T*)(p + off)); 1211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(p); 1221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1252dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate<typename T> 126938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void uaf_test(int size, int off) { 1271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *p = (char *)malloc_aaa(size); 1281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(p); 1291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 1; i < 100; i++) 1301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(malloc_aaa(i)); 1311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany fprintf(stderr, "writing %ld byte(s) at %p with offset %d\n", 1321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany (long)sizeof(T), p, off); 1331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany asan_write((T*)(p + off)); 1341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 13613ebae606b526399771e9cca1d6a9d24458ad0f1Kostya SerebryanyTEST(AddressSanitizer, HasFeatureAddressSanitizerTest) { 13713ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany#if defined(__has_feature) && __has_feature(address_sanitizer) 13813ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany bool asan = 1; 139badab16503e025326a46a45da8faa6fd20e5fc3dKostya Serebryany#elif defined(__SANITIZE_ADDRESS__) 140badab16503e025326a46a45da8faa6fd20e5fc3dKostya Serebryany bool asan = 1; 14113ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany#else 14213ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany bool asan = 0; 14313ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany#endif 14413ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany EXPECT_EQ(true, asan); 1451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1471e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, SimpleDeathTest) { 1481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(exit(1), ""); 1491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1511e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, VariousMallocsTest) { 1521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = (int*)malloc(100 * sizeof(int)); 1531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a[50] = 0; 1541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *r = (int*)malloc(10); 1571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany r = (int*)realloc(r, 2000 * sizeof(int)); 1581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany r[1000] = 0; 1591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(r); 1601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *b = new int[100]; 1621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany b[50] = 0; 1631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete [] b; 1641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *c = new int; 1661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *c = 0; 1671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete c; 1681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 169e0e9eea99d7a81a15c4bb15ff2e5ebd92b50817bEvgeniy Stepanov#if !defined(__APPLE__) && !defined(ANDROID) && !defined(__ANDROID__) 1701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *pm; 1711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int pm_res = posix_memalign((void**)&pm, kPageSize, kPageSize); 1721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, pm_res); 1731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(pm); 1747274eafceb832e1088f30b71652992787ba8c456Evgeniy Stepanov#endif 1751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1764dd8ba8238b1b698953628affe6e5b2edf3b3e3fAlexey Samsonov#if !defined(__APPLE__) 1771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *ma = (int*)memalign(kPageSize, kPageSize); 17876e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)ma % kPageSize); 1791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ma[123] = 0; 1801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(ma); 1811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 1821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1841e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, CallocTest) { 1851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = (int*)calloc(100, sizeof(int)); 1861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, a[10]); 1871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1901e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, VallocTest) { 1911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *a = valloc(100); 19276e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)a % kPageSize); 1931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 1971e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, PvallocTest) { 1981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *a = (char*)pvalloc(kPageSize + 100); 19976e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)a % kPageSize); 2001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a[kPageSize + 101] = 1; // we should not report an error here. 2011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 2021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a = (char*)pvalloc(0); // pvalloc(0) should allocate at least one page. 20476e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)a % kPageSize); 2051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a[101] = 1; // we should not report an error here. 2061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 2071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 2091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *TSDWorker(void *test_key) { 2111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (test_key) { 2121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_setspecific(*(pthread_key_t*)test_key, (void*)0xfeedface); 2131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 2141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return NULL; 2151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid TSDDestructor(void *tsd) { 2181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Spawning a thread will check that the current thread id is not -1. 2191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t th; 2202697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th, NULL, TSDWorker, NULL); 2212697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th, NULL); 2221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This tests triggers the thread-specific data destruction fiasco which occurs 2251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// if we don't manage the TSD destructors ourselves. We create a new pthread 2261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// key with a non-NULL destructor which is likely to be put after the destructor 2271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// of AsanThread in the list of destructors. 2281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// In this case the TSD for AsanThread will be destroyed before TSDDestructor 2291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// is called for the child thread, and a CHECK will fail when we call 2301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// pthread_create() to spawn the grandchild. 2311e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_TSDTest) { 2321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t th; 2331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_t test_key; 2341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_create(&test_key, TSDDestructor); 2352697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th, NULL, TSDWorker, &test_key); 2362697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th, NULL); 2371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_delete(test_key); 2381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2402dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate<typename T> 2411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid OOBTest() { 2421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_str[100]; 2431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int size = sizeof(T); size < 20; size += 5) { 2441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = -5; i < 0; i++) { 2451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const char *str = 2461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located.*%d byte.*to the left"; 2471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany sprintf(expected_str, str, abs(i)); 2481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(oob_test<T>(size, i), expected_str); 2491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 2501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 25176e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov for (int i = 0; i < (int)(size - sizeof(T) + 1); i++) 2521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany oob_test<T>(size, i); 2531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 25476e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov for (int i = size - sizeof(T) + 1; i <= (int)(size + 3 * sizeof(T)); i++) { 2551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const char *str = 2561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located.*%d byte.*to the right"; 2571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int off = i >= size ? (i - size) : 0; 2581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // we don't catch unaligned partially OOB accesses. 2591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (i % sizeof(T)) continue; 2601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany sprintf(expected_str, str, off); 2611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(oob_test<T>(size, i), expected_str); 2621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 2631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 2641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(oob_test<T>(kLargeMalloc, -1), 2661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located.*1 byte.*to the left"); 2671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(oob_test<T>(kLargeMalloc, kLargeMalloc), 2681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located.*0 byte.*to the right"); 2691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(glider): the following tests are EXTREMELY slow on Darwin: 2721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// AddressSanitizer.OOB_char (125503 ms) 2731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// AddressSanitizer.OOB_int (126890 ms) 2741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// AddressSanitizer.OOBRightTest (315605 ms) 2751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// AddressSanitizer.SimpleStackTest (366559 ms) 2761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2771e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, OOB_char) { 2781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany OOBTest<U1>(); 2791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2811e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, OOB_int) { 2821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany OOBTest<U4>(); 2831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2851e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, OOBRightTest) { 2861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t access_size = 1; access_size <= 8; access_size *= 2) { 2871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t alloc_size = 1; alloc_size <= 8; alloc_size++) { 2881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t offset = 0; offset <= 8; offset += access_size) { 2891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *p = malloc(alloc_size); 2901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // allocated: [p, p + alloc_size) 2911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // accessed: [p + offset, p + offset + access_size) 2921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uint8_t *addr = (uint8_t*)p + offset; 2931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (offset + access_size <= alloc_size) { 2941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany asan_write_sized_aligned(addr, access_size); 2951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 2961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int outside_bytes = offset > alloc_size ? (offset - alloc_size) : 0; 2971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const char *str = 2981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located.%d *byte.*to the right"; 2991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_str[100]; 3001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany sprintf(expected_str, str, outside_bytes); 3011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(asan_write_sized_aligned(addr, access_size), 3021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany expected_str); 3031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(p); 3051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3101e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, UAF_char) { 311ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany const char *uaf_string = "AddressSanitizer:.*heap-use-after-free"; 3121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(1, 0), uaf_string); 3131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(10, 0), uaf_string); 3141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(10, 10), uaf_string); 3151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, 0), uaf_string); 3161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, kLargeMalloc / 2), uaf_string); 3171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_HAS_BLACKLIST 3201e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, IgnoreTest) { 3211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = Ident(new int); 3221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete Ident(x); 3231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *x = 0; 3241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // ASAN_HAS_BLACKLIST 3261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystruct StructWithBitField { 3281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf1:1; 3291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf2:1; 3301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf3:1; 3311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf4:29; 3321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany}; 3331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3341e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, BitFieldPositiveTest) { 3351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StructWithBitField *x = new StructWithBitField; 3361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete Ident(x); 3371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf1 = 0, "use-after-free"); 3381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf2 = 0, "use-after-free"); 3391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf3 = 0, "use-after-free"); 3401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf4 = 0, "use-after-free"); 34176e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov} 3421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystruct StructWithBitFields_8_24 { 3441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a:8; 3451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b:24; 3461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany}; 3471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3481e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, BitFieldNegativeTest) { 3491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StructWithBitFields_8_24 *x = Ident(new StructWithBitFields_8_24); 3501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x->a = 0; 3511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x->b = 0; 3521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete Ident(x); 3531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3551e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, OutOfMemoryTest) { 3565af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t size = SANITIZER_WORDSIZE == 64 ? (size_t)(1ULL << 48) : (0xf0000000); 3571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, realloc(0, size)); 3581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, realloc(0, ~Ident(0))); 3591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, malloc(size)); 3601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, malloc(~Ident(0))); 3611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, calloc(1, size)); 3621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, calloc(1, ~Ident(0))); 3631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_NEEDS_SEGV 36658b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenkonamespace { 36758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 368ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryanyconst char kUnknownCrash[] = "AddressSanitizer: SEGV on unknown address"; 36958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenkoconst char kOverriddenHandler[] = "ASan signal handler has been overridden\n"; 37058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 3711e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, WildAddressTest) { 3721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *c = (char*)0x123; 37358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_DEATH(*c = 0, kUnknownCrash); 37458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 37558b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 37658b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenkovoid my_sigaction_sighandler(int, siginfo_t*, void*) { 37758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko fprintf(stderr, kOverriddenHandler); 37858b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko exit(1); 37958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 38058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 381b0ddf227b25388ad836e560c00f0aec84026b0e5Alexey Samsonovvoid my_signal_sighandler(int signum) { 38258b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko fprintf(stderr, kOverriddenHandler); 38358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko exit(1); 38458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 38558b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 38658b017bb286a8f4413a9348d2c87c52de38cff6dAlexander PotapenkoTEST(AddressSanitizer, SignalTest) { 38758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko struct sigaction sigact; 38858b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko memset(&sigact, 0, sizeof(sigact)); 38958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko sigact.sa_sigaction = my_sigaction_sighandler; 39058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko sigact.sa_flags = SA_SIGINFO; 39158b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko // ASan should silently ignore sigaction()... 39258b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_EQ(0, sigaction(SIGSEGV, &sigact, 0)); 39358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko#ifdef __APPLE__ 39458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_EQ(0, sigaction(SIGBUS, &sigact, 0)); 39558b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko#endif 39658b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko char *c = (char*)0x123; 39758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_DEATH(*c = 0, kUnknownCrash); 39858b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko // ... and signal(). 39958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_EQ(0, signal(SIGSEGV, my_signal_sighandler)); 40058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_DEATH(*c = 0, kUnknownCrash); 40158b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 402b0ddf227b25388ad836e560c00f0aec84026b0e5Alexey Samsonov} // namespace 4031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 4041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic void MallocStress(size_t n) { 4061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uint32_t seed = my_rand(&global_seed); 4071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t iter = 0; iter < 10; iter++) { 4081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vector<void *> vec; 4091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < n; i++) { 4101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if ((i % 3) == 0) { 4111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (vec.empty()) continue; 4121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t idx = my_rand(&seed) % vec.size(); 4131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *ptr = vec[idx]; 4141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vec[idx] = vec.back(); 4151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vec.pop_back(); 4161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(ptr); 4171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 4181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = my_rand(&seed) % 1000 + 1; 4191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 4201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t alignment = 1 << (my_rand(&seed) % 7 + 3); 4211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *ptr = (char*)memalign_aaa(alignment, size); 4221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 4231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *ptr = (char*) malloc_aaa(size); 4241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 4251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vec.push_back(ptr); 4261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[0] = 0; 4271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[size-1] = 0; 4281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[size/2] = 0; 4291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 4301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 4311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < vec.size(); i++) 4321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(vec[i]); 4331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 4341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4361e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MallocStressTest) { 4378ae44ac678644265ba82a1b5696a402c9301a85cEvgeniy Stepanov MallocStress((ASAN_LOW_MEMORY) ? 20000 : 200000); 4381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic void TestLargeMalloc(size_t size) { 4411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char buff[1024]; 4421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany sprintf(buff, "is located 1 bytes to the left of %lu-byte", (long)size); 4431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident((char*)malloc(size))[-1] = 0, buff); 4441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4461e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, LargeMallocTest) { 4471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 113; i < (1 << 28); i = i * 2 + 13) { 4481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TestLargeMalloc(i); 4491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 4501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 452788e1d704436065beb514fdde86070f61d0394edEvgeniy Stepanov#if ASAN_LOW_MEMORY != 1 4531e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, HugeMallocTest) { 4541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __APPLE__ 4551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // It was empirically found out that 1215 megabytes is the maximum amount of 456e4d141dbbaf5185f332a185c22308340657d243eKostya Serebryany // memory available to the process under AddressSanitizer on 32-bit Mac 10.6. 457e4d141dbbaf5185f332a185c22308340657d243eKostya Serebryany // 32-bit Mac 10.7 gives even less (< 1G). 4581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // (the libSystem malloc() allows allocating up to 2300 megabytes without 4591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // ASan). 4605af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t n_megs = SANITIZER_WORDSIZE == 32 ? 500 : 4100; 4611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 4625af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t n_megs = SANITIZER_WORDSIZE == 32 ? 2600 : 4100; 4631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 4641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TestLargeMalloc(n_megs << 20); 4651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 466788e1d704436065beb514fdde86070f61d0394edEvgeniy Stepanov#endif 4671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 468c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany#ifndef __APPLE__ 469c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryanyvoid MemalignRun(size_t align, size_t size, int idx) { 470c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany fprintf(stderr, "align %ld\n", align); 471c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany char *p = (char *)memalign(align, size); 472c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany Ident(p)[idx] = 0; 473c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany free(p); 474c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany} 475c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany 476c311105fd64219bb96b6467c3707ebda355be87bKostya SerebryanyTEST(AddressSanitizer, memalign) { 477c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany for (int align = 16; align <= (1 << 23); align *= 2) { 478c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany size_t size = align * 5; 479c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany EXPECT_DEATH(MemalignRun(align, size, -1), 480c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany "is located 1 bytes to the left"); 481c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany EXPECT_DEATH(MemalignRun(align, size, size + 1), 482c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany "is located 1 bytes to the right"); 483c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany } 484c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany} 485c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany#endif 486c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany 4871e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadedMallocStressTest) { 4881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kNumThreads = 4; 4898ae44ac678644265ba82a1b5696a402c9301a85cEvgeniy Stepanov const int kNumIterations = (ASAN_LOW_MEMORY) ? 10000 : 100000; 4901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t[kNumThreads]; 4911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 4922697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t[i], 0, (void* (*)(void *x))MallocStress, 4938ae44ac678644265ba82a1b5696a402c9301a85cEvgeniy Stepanov (void*)kNumIterations); 4941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 4951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 4962697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t[i], 0); 4971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 4981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ManyThreadsWorker(void *a) { 5011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int iter = 0; iter < 100; iter++) { 5021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t size = 100; size < 2000; size *= 2) { 5031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(Ident(malloc(size))); 5041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 5051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 5061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 5071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5091e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ManyThreadsTest) { 5102697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany const size_t kNumThreads = 5112697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany (SANITIZER_WORDSIZE == 32 || ASAN_AVOID_EXPENSIVE_TESTS) ? 30 : 1000; 5121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t[kNumThreads]; 5131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < kNumThreads; i++) { 5142697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t[i], 0, ManyThreadsWorker, (void*)i); 5151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 5161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < kNumThreads; i++) { 5172697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t[i], 0); 5181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 5191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5211e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ReallocTest) { 5221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kMinElem = 5; 5231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *ptr = (int*)malloc(sizeof(int) * kMinElem); 5241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[3] = 3; 5251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 10000; i++) { 5261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr = (int*)realloc(ptr, 5271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany (my_rand(&global_seed) % 1000 + kMinElem) * sizeof(int)); 5281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(3, ptr[3]); 5291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 5301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5324fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov#ifndef __APPLE__ 5334fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonovstatic const char *kMallocUsableSizeErrorMsg = 534ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "AddressSanitizer: attempting to call malloc_usable_size()"; 5354fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov 5364fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey SamsonovTEST(AddressSanitizer, MallocUsableSizeTest) { 5374fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov const size_t kArraySize = 100; 5384fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov char *array = Ident((char*)malloc(kArraySize)); 5394fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov int *int_ptr = Ident(new int); 54076e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, malloc_usable_size(NULL)); 5414fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_EQ(kArraySize, malloc_usable_size(array)); 5424fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_EQ(sizeof(int), malloc_usable_size(int_ptr)); 5434fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_DEATH(malloc_usable_size((void*)0x123), kMallocUsableSizeErrorMsg); 5444fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_DEATH(malloc_usable_size(array + kArraySize / 2), 5454fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov kMallocUsableSizeErrorMsg); 5464fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov free(array); 5474fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_DEATH(malloc_usable_size(array), kMallocUsableSizeErrorMsg); 5484fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov} 5494fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov#endif 5504fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov 5511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid WrongFree() { 5521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = (int*)malloc(100 * sizeof(int)); 5531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Use the allocated memory, otherwise Clang will optimize it out. 5541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(x); 5551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(x + 1); 5561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5581e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, WrongFreeTest) { 559c16201337a4bb974093ff75aa45682739a331d05Kostya Serebryany EXPECT_DEATH(WrongFree(), 560ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "ERROR: AddressSanitizer: attempting free.*not malloc"); 5611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid DoubleFree() { 5641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = (int*)malloc(100 * sizeof(int)); 5651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany fprintf(stderr, "DoubleFree: x=%p\n", x); 5661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(x); 5671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(x); 5681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany fprintf(stderr, "should have failed in the second free(%p)\n", x); 5691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany abort(); 5701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5721e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DoubleFreeTest) { 57327f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany EXPECT_DEATH(DoubleFree(), ASAN_PCRE_DOTALL 574ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "ERROR: AddressSanitizer: attempting double-free" 57527f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany ".*is located 0 bytes inside of 400-byte region" 57627f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany ".*freed by thread T0 here" 57727f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany ".*previously allocated by thread T0 here"); 5781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytemplate<int kSize> 581938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void SizedStackTest() { 5821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char a[kSize]; 5831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *A = Ident((char*)&a); 5841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < kSize; i++) 5851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany A[i] = i; 5861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[-1] = 0, ""); 5871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[-20] = 0, ""); 5881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[-31] = 0, ""); 5891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize] = 0, ""); 5901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize + 1] = 0, ""); 5911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize + 10] = 0, ""); 5921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize + 31] = 0, ""); 5931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5951e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, SimpleStackTest) { 5961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<1>(); 5971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<2>(); 5981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<3>(); 5991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<4>(); 6001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<5>(); 6011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<6>(); 6021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<7>(); 6031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<16>(); 6041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<25>(); 6051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<34>(); 6061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<43>(); 6071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<51>(); 6081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<62>(); 6091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<64>(); 6101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<128>(); 6111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6131e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ManyStackObjectsTest) { 6141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char XXX[10]; 6151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char YYY[20]; 6161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char ZZZ[30]; 6171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(XXX); 6181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(YYY); 6191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(ZZZ)[-1] = 0, ASAN_PCRE_DOTALL "XXX.*YYY.*ZZZ"); 6201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 622938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame0(int frame, char *a, char *b, char *c) { 6231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char d[4] = {0}; 6241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *D = Ident(d); 6251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany switch (frame) { 6261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 3: a[5]++; break; 6271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 2: b[5]++; break; 6281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 1: c[5]++; break; 6291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 0: D[5]++; break; 6301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 6311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 632938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame1(int frame, char *a, char *b) { 6331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char c[4] = {0}; Frame0(frame, a, b, c); 6341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany break_optimization(0); 6351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 636938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame2(int frame, char *a) { 6371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char b[4] = {0}; Frame1(frame, a, b); 6381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany break_optimization(0); 6391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 640938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame3(int frame) { 6411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char a[4] = {0}; Frame2(frame, a); 6421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany break_optimization(0); 6431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6451e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame0Test) { 6461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(0), "located .*in frame <.*Frame0"); 6471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6481e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame1Test) { 6491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(1), "located .*in frame <.*Frame1"); 6501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6511e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame2Test) { 6521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(2), "located .*in frame <.*Frame2"); 6531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6541e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame3Test) { 6551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(3), "located .*in frame <.*Frame3"); 6561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 658938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void LongJmpFunc1(jmp_buf buf) { 6591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 6601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 6611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 6621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 6641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 6651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 6661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany longjmp(buf, 1); 6671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 669d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya SerebryanyNOINLINE void BuiltinLongJmpFunc1(jmp_buf buf) { 670d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany // create three red zones for these two stack objects. 671d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int a; 672d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int b; 673d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany 674d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int *A = Ident(&a); 675d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int *B = Ident(&b); 676d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany *A = *B; 677d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany __builtin_longjmp((void**)buf, 1); 678d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany} 679d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany 680938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void UnderscopeLongJmpFunc1(jmp_buf buf) { 6811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 6821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 6831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 6841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 6861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 6871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 6881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany _longjmp(buf, 1); 6891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 691938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void SigLongJmpFunc1(sigjmp_buf buf) { 6921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 6931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 6941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 6951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 6971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 6981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 6991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany siglongjmp(buf, 1); 7001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 703938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void TouchStackFunc() { 7041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a[100]; // long array will intersect with redzones from LongJmpFunc1. 7051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(a); 7061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 100; i++) 7071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany A[i] = i*i; 7081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Test that we handle longjmp and do not report fals positives on stack. 7111e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, LongJmpTest) { 7121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static jmp_buf buf; 7131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!setjmp(buf)) { 7141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany LongJmpFunc1(buf); 7151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 7161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 7171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 7181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 720b989143d0be56496e8d5fcf75969af35a058792aKostya Serebryany#if not defined(__ANDROID__) 721c3a5c173f228cbb15e332e6bbc17c76ebd55d7a8Kostya SerebryanyTEST(AddressSanitizer, BuiltinLongJmpTest) { 722d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany static jmp_buf buf; 723c3a5c173f228cbb15e332e6bbc17c76ebd55d7a8Kostya Serebryany if (!__builtin_setjmp((void**)buf)) { 724d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany BuiltinLongJmpFunc1(buf); 725d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany } else { 726d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany TouchStackFunc(); 727d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany } 728d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany} 729b989143d0be56496e8d5fcf75969af35a058792aKostya Serebryany#endif // not defined(__ANDROID__) 730d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany 7311e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, UnderscopeLongJmpTest) { 7321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static jmp_buf buf; 7331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!_setjmp(buf)) { 7341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany UnderscopeLongJmpFunc1(buf); 7351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 7361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 7371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 7381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7401e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, SigLongJmpTest) { 7411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static sigjmp_buf buf; 7421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!sigsetjmp(buf, 1)) { 7431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SigLongJmpFunc1(buf); 7441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 7451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 7461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 7471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __EXCEPTIONS 750938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void ThrowFunc() { 7511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 7521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 7531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 7541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 7561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 7571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 7581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ASAN_THROW(1); 7591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7611e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, CxxExceptionTest) { 7621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (ASAN_UAR) return; 7631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // TODO(kcc): this test crashes on 32-bit for some reason... 7645af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany if (SANITIZER_WORDSIZE == 32) return; 7651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany try { 7661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ThrowFunc(); 7671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } catch(...) {} 7681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 7691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 7711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadStackReuseFunc1(void *unused) { 7731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 7741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 7751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 7761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 7781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 7791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 7801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_exit(0); 7811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 7821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadStackReuseFunc2(void *unused) { 7851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 7861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 7871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7891e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadStackReuseTest) { 7901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t; 7912697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadStackReuseFunc1, 0); 7922697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 7932697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadStackReuseFunc2, 0); 7942697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 7951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 797f6607d097833cd53460735c1a5a2fd52b97613ebTimur Iskhodzhanov#if defined(__i386__) || defined(__x86_64__) 7981e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, Store128Test) { 7991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *a = Ident((char*)malloc(Ident(12))); 8001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *p = a; 8011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (((uintptr_t)a % 16) != 0) 8021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany p = a + 8; 8031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(((uintptr_t)p % 16) == 0); 8041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany __m128i value_wide = _mm_set1_epi16(0x1234); 8051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), 806ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "AddressSanitizer: heap-buffer-overflow"); 807acd5c617b219e0f059620c2a3928d2cc821d4534Kostya Serebryany EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), 8081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "WRITE of size 16"); 8091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), 8101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "located 0 bytes to the right of 12-byte"); 8111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 8121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 8141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 815ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenkostatic string RightOOBErrorMessage(int oob_distance, bool is_write) { 8161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(oob_distance >= 0); 8171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_str[100]; 8180b770b48e4ae053a7d0610e1c682405afba58fdaKostya Serebryany sprintf(expected_str, ASAN_PCRE_DOTALL "%s.*located %d bytes to the right", 819ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko is_write ? "WRITE" : "READ", oob_distance); 8201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return string(expected_str); 8211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 823ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenkostatic string RightOOBWriteMessage(int oob_distance) { 824ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return RightOOBErrorMessage(oob_distance, /*is_write*/true); 825ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 826ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 827ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenkostatic string RightOOBReadMessage(int oob_distance) { 828ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return RightOOBErrorMessage(oob_distance, /*is_write*/false); 829ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 830ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 831ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenkostatic string LeftOOBErrorMessage(int oob_distance, bool is_write) { 8321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(oob_distance > 0); 8331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_str[100]; 8340b770b48e4ae053a7d0610e1c682405afba58fdaKostya Serebryany sprintf(expected_str, ASAN_PCRE_DOTALL "%s.*located %d bytes to the left", 835ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko is_write ? "WRITE" : "READ", oob_distance); 8361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return string(expected_str); 8371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 839ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenkostatic string LeftOOBWriteMessage(int oob_distance) { 840ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return LeftOOBErrorMessage(oob_distance, /*is_write*/true); 841ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 842ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 843ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenkostatic string LeftOOBReadMessage(int oob_distance) { 844ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return LeftOOBErrorMessage(oob_distance, /*is_write*/false); 845ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 846ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 847ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenkostatic string LeftOOBAccessMessage(int oob_distance) { 848ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko assert(oob_distance > 0); 849ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko char expected_str[100]; 850ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko sprintf(expected_str, "located %d bytes to the left", oob_distance); 851ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko return string(expected_str); 852ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko} 853ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko 8542dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate<typename T> 8551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid MemSetOOBTestTemplate(size_t length) { 8561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (length == 0) return; 8571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(sizeof(T) * length); 8581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany T *array = Ident((T*)malloc(size)); 8591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int element = Ident(42); 8601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int zero = Ident(0); 8611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // memset interval inside array 8621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array, element, size); 8631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array, element, size - 1); 8641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array + length - 1, element, sizeof(T)); 8651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array, element, 1); 8661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // memset 0 bytes 8681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array - 10, element, zero); 8691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array - 1, element, zero); 8701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array, element, zero); 8711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array + length, 0, zero); 8721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(array + length + 1, 0, zero); 8731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to memset bytes to the right of array 8751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset(array, 0, size + 1), 876ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(0)); 8771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset((char*)(array + length) - 1, element, 6), 878ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(4)); 8791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset(array + 1, element, size + sizeof(T)), 880ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(2 * sizeof(T) - 1)); 8811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // whole interval is to the right 8821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset(array + length + 1, 0, 10), 883ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(sizeof(T))); 8841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to memset bytes to the left of array 8861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset((char*)array - 1, element, size), 887ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(1)); 8881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset((char*)array - 5, 0, 6), 889ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(5)); 8901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset(array - 5, element, size + 5 * sizeof(T)), 891ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(5 * sizeof(T))); 8921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // whole interval is to the left 8931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset(array - 2, 0, sizeof(T)), 894ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(2 * sizeof(T))); 8951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to memset bytes both to the left & to the right 8971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(memset((char*)array - 2, element, size + 4), 898ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(2)); 8991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(array); 9011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9031e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MemSetOOBTest) { 9041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemSetOOBTestTemplate<char>(100); 9051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemSetOOBTestTemplate<int>(5); 9061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemSetOOBTestTemplate<double>(256); 9071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // We can test arrays of structres/classes here, but what for? 9081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Same test for memcpy and memmove functions 9112dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate <typename T, class M> 9121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid MemTransferOOBTestTemplate(size_t length) { 9131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (length == 0) return; 9141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(sizeof(T) * length); 9151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany T *src = Ident((T*)malloc(size)); 9161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany T *dest = Ident((T*)malloc(size)); 9171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int zero = Ident(0); 9181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // valid transfer of bytes between arrays 9201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest, src, size); 9211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest + 1, src, size - sizeof(T)); 9221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest, src + length - 1, sizeof(T)); 9231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest, src, 1); 9241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // transfer zero bytes 9261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest - 1, src, 0); 9271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest + length, src, zero); 9281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest, src - 1, zero); 9291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany M::transfer(dest, src, zero); 9301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to change mem to the right of dest 9321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest + 1, src, size), 933ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(sizeof(T) - 1)); 9341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer((char*)(dest + length) - 1, src, 5), 935ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(3)); 9361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to change mem to the left of dest 9381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest - 2, src, size), 939ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(2 * sizeof(T))); 9401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer((char*)dest - 3, src, 4), 941ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(3)); 9421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to access mem to the right of src 9441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest, src + 2, size), 945ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBReadMessage(2 * sizeof(T) - 1)); 9461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest, (char*)(src + length) - 3, 6), 947ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBReadMessage(2)); 9481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to access mem to the left of src 9501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest, src - 1, size), 951ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBReadMessage(sizeof(T))); 9521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest, (char*)src - 6, 7), 953ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBReadMessage(6)); 9541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Generally we don't need to test cases where both accessing src and writing 9561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // to dest address to poisoned memory. 9571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany T *big_src = Ident((T*)malloc(size * 2)); 9591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany T *big_dest = Ident((T*)malloc(size * 2)); 9601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to change mem to both sides of dest 9611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(dest - 1, big_src, size * 2), 962ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(sizeof(T))); 9631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // try to access mem to both sides of src 9641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(M::transfer(big_dest, src - 2, size * 2), 965ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBReadMessage(2 * sizeof(T))); 9661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(src); 9681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(dest); 9691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(big_src); 9701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(big_dest); 9711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyclass MemCpyWrapper { 9741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany public: 9751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static void* transfer(void *to, const void *from, size_t size) { 9761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return memcpy(to, from, size); 9771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 9781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany}; 9791e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MemCpyOOBTest) { 9801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemTransferOOBTestTemplate<char, MemCpyWrapper>(100); 9811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemTransferOOBTestTemplate<int, MemCpyWrapper>(1024); 9821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyclass MemMoveWrapper { 9851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany public: 9861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static void* transfer(void *to, const void *from, size_t size) { 9871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return memmove(to, from, size); 9881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 9891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany}; 9901e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MemMoveOOBTest) { 9911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemTransferOOBTestTemplate<char, MemMoveWrapper>(100); 9921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany MemTransferOOBTestTemplate<int, MemMoveWrapper>(1024); 9931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Tests for string functions 9961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Used for string functions tests 9981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic char global_string[] = "global"; 9991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic size_t global_string_length = 6; 10001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Input to a test is a zero-terminated string str with given length 10021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Accesses to the bytes to the left and to the right of str 10031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// are presumed to produce OOB errors 10041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid StrLenOOBTestTemplate(char *str, size_t length, bool is_global) { 10051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Normal strlen calls 10061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(strlen(str), length); 10071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (length > 0) { 100876e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(length - 1, strlen(str + 1)); 100976e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, strlen(str + length)); 10101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 10111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Arg of strlen is not malloced, OOB access 10121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!is_global) { 10131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // We don't insert RedZones to the left of global variables 1014ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strlen(str - 1)), LeftOOBReadMessage(1)); 1015ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strlen(str - 5)), LeftOOBReadMessage(5)); 10161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 1017ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strlen(str + length + 1)), RightOOBReadMessage(0)); 10181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Overwrite terminator 10191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[length] = 'a'; 10201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // String is not zero-terminated, strlen will lead to OOB access 1021ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strlen(str)), RightOOBReadMessage(0)); 1022ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strlen(str + length)), RightOOBReadMessage(0)); 10231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Restore terminator 10241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[length] = 0; 10251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10261e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrLenOOBTest) { 10271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Check heap-allocated string 10281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t length = Ident(10); 10291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *heap_string = Ident((char*)malloc(length + 1)); 10301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char stack_string[10 + 1]; 1031badab16503e025326a46a45da8faa6fd20e5fc3dKostya Serebryany break_optimization(&stack_string); 103276e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov for (size_t i = 0; i < length; i++) { 10331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany heap_string[i] = 'a'; 10341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany stack_string[i] = 'b'; 10351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 10361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany heap_string[length] = 0; 10371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany stack_string[length] = 0; 10381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StrLenOOBTestTemplate(heap_string, length, false); 10391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // TODO(samsonov): Fix expected messages in StrLenOOBTestTemplate to 10401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // make test for stack_string work. Or move it to output tests. 10411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // StrLenOOBTestTemplate(stack_string, length, false); 10421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StrLenOOBTestTemplate(global_string, global_string_length, true); 10431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(heap_string); 10441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1046847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovstatic inline char* MallocAndMemsetString(size_t size, char ch) { 1047af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany char *s = Ident((char*)malloc(size)); 1048847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov memset(s, ch, size); 1049af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany return s; 1050af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany} 1051847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovstatic inline char* MallocAndMemsetString(size_t size) { 1052847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov return MallocAndMemsetString(size, 'z'); 1053847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov} 1054af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 10551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 10561e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrNLenOOBTest) { 10571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(123); 1058af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany char *str = MallocAndMemsetString(size); 10591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Normal strnlen calls. 10601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(strnlen(str - 1, 0)); 10611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(strnlen(str, size)); 10621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(strnlen(str + size - 1, 1)); 10631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[size - 1] = '\0'; 10641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(strnlen(str, 2 * size)); 10651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Argument points to not allocated memory. 1066ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strnlen(str - 1, 1)), LeftOOBReadMessage(1)); 1067ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strnlen(str + size, 1)), RightOOBReadMessage(0)); 10681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Overwrite the terminating '\0' and hit unallocated memory. 10691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[size - 1] = 'z'; 1070ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strnlen(str, size + 1)), RightOOBReadMessage(0)); 10711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(str); 10721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 10741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10751e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrDupOOBTest) { 10761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(42); 1077af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany char *str = MallocAndMemsetString(size); 10781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *new_str; 10791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Normal strdup calls. 10801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[size - 1] = '\0'; 10811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany new_str = strdup(str); 10821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(new_str); 10831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany new_str = strdup(str + size - 1); 10841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(new_str); 10851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Argument points to not allocated memory. 1086ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strdup(str - 1)), LeftOOBReadMessage(1)); 1087ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strdup(str + size)), RightOOBReadMessage(0)); 10881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Overwrite the terminating '\0' and hit unallocated memory. 10891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[size - 1] = 'z'; 1090ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strdup(str)), RightOOBReadMessage(0)); 10911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(str); 10921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10941e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrCpyOOBTest) { 10951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t to_size = Ident(30); 10961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t from_size = Ident(6); // less than to_size 10971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *to = Ident((char*)malloc(to_size)); 10981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *from = Ident((char*)malloc(from_size)); 10991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Normal strcpy calls. 11001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strcpy(from, "hello"); 11011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strcpy(to, from); 11021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strcpy(to + to_size - from_size, from); 11031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Length of "from" is too small. 1104ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strcpy(from, "hello2")), RightOOBWriteMessage(0)); 11051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // "to" or "from" points to not allocated memory. 1106ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strcpy(to - 1, from)), LeftOOBWriteMessage(1)); 1107ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strcpy(to, from - 1)), LeftOOBReadMessage(1)); 1108ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strcpy(to, from + from_size)), RightOOBReadMessage(0)); 1109ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strcpy(to + to_size, from)), RightOOBWriteMessage(0)); 11101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Overwrite the terminating '\0' character and hit unallocated memory. 11111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany from[from_size - 1] = '!'; 1112ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(strcpy(to, from)), RightOOBReadMessage(0)); 11131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(to); 11141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(from); 11151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11171e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrNCpyOOBTest) { 11181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t to_size = Ident(20); 11191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t from_size = Ident(6); // less than to_size 11201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *to = Ident((char*)malloc(to_size)); 11211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // From is a zero-terminated string "hello\0" of length 6 11221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *from = Ident((char*)malloc(from_size)); 11231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strcpy(from, "hello"); 11241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // copy 0 bytes 11251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to, from, 0); 11261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to - 1, from - 1, 0); 11271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // normal strncpy calls 11281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to, from, from_size); 11291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to, from, to_size); 11301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to, from + from_size - 1, to_size); 11311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to + to_size - 1, from, 1); 11321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // One of {to, from} points to not allocated memory 11331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to, from - 1, from_size)), 1134ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBReadMessage(1)); 11351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to - 1, from, from_size)), 1136ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko LeftOOBWriteMessage(1)); 11371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to, from + from_size, 1)), 1138ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBReadMessage(0)); 11391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to + to_size, from, 1)), 1140ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(0)); 11411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Length of "to" is too small 11421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to + to_size - from_size + 1, from, from_size)), 1143ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(0)); 11441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to + 1, from, to_size)), 1145ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBWriteMessage(0)); 11461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Overwrite terminator in from 11471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany from[from_size - 1] = '!'; 11481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // normal strncpy call 11491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(to, from, from_size); 11501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Length of "from" is too small 11511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(strncpy(to, from, to_size)), 1152ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko RightOOBReadMessage(0)); 11531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(to); 11541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(from); 11551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1157fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov// Users may have different definitions of "strchr" and "index", so provide 1158fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov// function pointer typedefs and overload RunStrChrTest implementation. 1159fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov// We can't use macro for RunStrChrTest body here, as this macro would 1160fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov// confuse EXPECT_DEATH gtest macro. 1161fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonovtypedef char*(*PointerToStrChr1)(const char*, int); 1162fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonovtypedef char*(*PointerToStrChr2)(char*, int); 1163fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov 1164fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey SamsonovUSED static void RunStrChrTest(PointerToStrChr1 StrChr) { 11651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(100); 1166af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany char *str = MallocAndMemsetString(size); 11671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[10] = 'q'; 11681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[11] = '\0'; 11691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(str, StrChr(str, 'z')); 11701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(str + 10, StrChr(str, 'q')); 11711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(NULL, StrChr(str, 'a')); 11721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // StrChr argument points to not allocated memory. 1173ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrChr(str - 1, 'z')), LeftOOBReadMessage(1)); 1174ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrChr(str + size, 'z')), RightOOBReadMessage(0)); 11751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Overwrite the terminator and hit not allocated memory. 11761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[11] = 'z'; 1177ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrChr(str, 'a')), RightOOBReadMessage(0)); 11781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(str); 11791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1180fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey SamsonovUSED static void RunStrChrTest(PointerToStrChr2 StrChr) { 1181fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov size_t size = Ident(100); 1182fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov char *str = MallocAndMemsetString(size); 1183fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov str[10] = 'q'; 1184fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov str[11] = '\0'; 1185fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov EXPECT_EQ(str, StrChr(str, 'z')); 1186fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov EXPECT_EQ(str + 10, StrChr(str, 'q')); 1187fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov EXPECT_EQ(NULL, StrChr(str, 'a')); 1188fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov // StrChr argument points to not allocated memory. 1189ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrChr(str - 1, 'z')), LeftOOBReadMessage(1)); 1190ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrChr(str + size, 'z')), RightOOBReadMessage(0)); 1191fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov // Overwrite the terminator and hit not allocated memory. 1192fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov str[11] = 'z'; 1193ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrChr(str, 'a')), RightOOBReadMessage(0)); 1194fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov free(str); 1195fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov} 1196fa7e95da75c30b7111224e68cb4405357bdc0f4bAlexey Samsonov 11971e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrChrAndIndexOOBTest) { 11981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany RunStrChrTest(&strchr); 11991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany RunStrChrTest(&index); 12001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 12011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12021e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrCmpAndFriendsLogicTest) { 12031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // strcmp 12041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, strcmp("", "")); 12051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, strcmp("abcd", "abcd")); 1206af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strcmp("ab", "ac")); 1207af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strcmp("abc", "abcd")); 1208af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strcmp("acc", "abc")); 1209af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strcmp("abcd", "abc")); 12101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // strncmp 12121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, strncmp("a", "b", 0)); 12131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, strncmp("abcd", "abcd", 10)); 12141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, strncmp("abcd", "abcef", 3)); 1215af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strncmp("abcde", "abcfa", 4)); 1216af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strncmp("a", "b", 5)); 1217af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strncmp("bc", "bcde", 4)); 1218af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strncmp("xyz", "xyy", 10)); 1219af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strncmp("baa", "aaa", 1)); 1220af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strncmp("zyx", "", 2)); 1221af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 1222af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany // strcasecmp 1223af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_EQ(0, strcasecmp("", "")); 1224af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_EQ(0, strcasecmp("zzz", "zzz")); 1225af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_EQ(0, strcasecmp("abCD", "ABcd")); 1226af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strcasecmp("aB", "Ac")); 1227af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strcasecmp("ABC", "ABCd")); 1228af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strcasecmp("acc", "abc")); 1229af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strcasecmp("ABCd", "abc")); 1230af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 1231af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany // strncasecmp 1232af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_EQ(0, strncasecmp("a", "b", 0)); 1233af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_EQ(0, strncasecmp("abCD", "ABcd", 10)); 1234af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_EQ(0, strncasecmp("abCd", "ABcef", 3)); 1235af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strncasecmp("abcde", "ABCfa", 4)); 1236af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strncasecmp("a", "B", 5)); 1237af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_GT(0, strncasecmp("bc", "BCde", 4)); 1238af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strncasecmp("xyz", "xyy", 10)); 1239af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strncasecmp("Baa", "aaa", 1)); 1240af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany EXPECT_LT(0, strncasecmp("zyx", "", 2)); 124152fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany 124252fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany // memcmp 124352fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany EXPECT_EQ(0, memcmp("a", "b", 0)); 124452fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany EXPECT_EQ(0, memcmp("ab\0c", "ab\0c", 4)); 124552fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany EXPECT_GT(0, memcmp("\0ab", "\0ac", 3)); 124652fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany EXPECT_GT(0, memcmp("abb\0", "abba", 4)); 124752fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany EXPECT_LT(0, memcmp("ab\0cd", "ab\0c\0", 5)); 124852fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany EXPECT_LT(0, memcmp("zza", "zyx", 3)); 1249af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany} 1250af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 1251af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryanytypedef int(*PointerToStrCmp)(const char*, const char*); 1252af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryanyvoid RunStrCmpTest(PointerToStrCmp StrCmp) { 12531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(100); 12541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *s1 = MallocAndMemsetString(size); 12551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *s2 = MallocAndMemsetString(size); 12561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s1[size - 1] = '\0'; 12571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s2[size - 1] = '\0'; 1258af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany // Normal StrCmp calls 1259af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrCmp(s1, s2)); 1260af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrCmp(s1, s2 + size - 1)); 1261af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrCmp(s1 + size - 1, s2 + size - 1)); 12621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s1[size - 1] = 'z'; 12631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s2[size - 1] = 'x'; 1264af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrCmp(s1, s2)); 12651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // One of arguments points to not allocated memory. 1266ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrCmp)(s1 - 1, s2), LeftOOBReadMessage(1)); 1267ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrCmp)(s1, s2 - 1), LeftOOBReadMessage(1)); 1268ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrCmp)(s1 + size, s2), RightOOBReadMessage(0)); 1269ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrCmp)(s1, s2 + size), RightOOBReadMessage(0)); 12701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Hit unallocated memory and die. 12711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s2[size - 1] = 'z'; 1272ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrCmp)(s1, s1), RightOOBReadMessage(0)); 1273ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrCmp)(s1 + size - 1, s2), RightOOBReadMessage(0)); 12741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(s1); 12751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(s2); 12761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 12771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1278af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya SerebryanyTEST(AddressSanitizer, StrCmpOOBTest) { 1279af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany RunStrCmpTest(&strcmp); 1280af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany} 1281af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 1282af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya SerebryanyTEST(AddressSanitizer, StrCaseCmpOOBTest) { 1283af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany RunStrCmpTest(&strcasecmp); 1284af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany} 1285af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 1286af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryanytypedef int(*PointerToStrNCmp)(const char*, const char*, size_t); 1287af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryanyvoid RunStrNCmpTest(PointerToStrNCmp StrNCmp) { 12881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(100); 12891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *s1 = MallocAndMemsetString(size); 12901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *s2 = MallocAndMemsetString(size); 12911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s1[size - 1] = '\0'; 12921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s2[size - 1] = '\0'; 1293af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany // Normal StrNCmp calls 1294af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrNCmp(s1, s2, size + 2)); 12951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s1[size - 1] = 'z'; 12961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s2[size - 1] = 'x'; 1297af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrNCmp(s1 + size - 2, s2 + size - 2, size)); 12981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany s2[size - 1] = 'z'; 1299af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrNCmp(s1 - 1, s2 - 1, 0)); 1300af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany Ident(StrNCmp(s1 + size - 1, s2 + size - 1, 1)); 13011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // One of arguments points to not allocated memory. 1302ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrNCmp)(s1 - 1, s2, 1), LeftOOBReadMessage(1)); 1303ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrNCmp)(s1, s2 - 1, 1), LeftOOBReadMessage(1)); 1304ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrNCmp)(s1 + size, s2, 1), RightOOBReadMessage(0)); 1305ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrNCmp)(s1, s2 + size, 1), RightOOBReadMessage(0)); 13061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Hit unallocated memory and die. 1307ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrNCmp)(s1 + 1, s2 + 1, size), RightOOBReadMessage(0)); 1308ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(StrNCmp)(s1 + size - 1, s2, 2), RightOOBReadMessage(0)); 13091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(s1); 13101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(s2); 13111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 13121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1313af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya SerebryanyTEST(AddressSanitizer, StrNCmpOOBTest) { 1314af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany RunStrNCmpTest(&strncmp); 1315af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany} 1316af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 1317af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya SerebryanyTEST(AddressSanitizer, StrNCaseCmpOOBTest) { 1318af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany RunStrNCmpTest(&strncasecmp); 1319af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany} 1320af0f01d77c2a495f023ffbf6cce85b33bbd2306dKostya Serebryany 132152fb238ccc45781e4e1d097ae1ee748c898b5825Kostya SerebryanyTEST(AddressSanitizer, MemCmpOOBTest) { 132252fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany size_t size = Ident(100); 132352fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany char *s1 = MallocAndMemsetString(size); 132452fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany char *s2 = MallocAndMemsetString(size); 132552fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany // Normal memcmp calls. 132652fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany Ident(memcmp(s1, s2, size)); 132752fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany Ident(memcmp(s1 + size - 1, s2 + size - 1, 1)); 132852fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany Ident(memcmp(s1 - 1, s2 - 1, 0)); 132952fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany // One of arguments points to not allocated memory. 1330ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1 - 1, s2, 1), LeftOOBReadMessage(1)); 1331ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1, s2 - 1, 1), LeftOOBReadMessage(1)); 1332ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1 + size, s2, 1), RightOOBReadMessage(0)); 1333ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1, s2 + size, 1), RightOOBReadMessage(0)); 133452fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany // Hit unallocated memory and die. 1335ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1 + 1, s2 + 1, size), RightOOBReadMessage(0)); 1336ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1 + size - 1, s2, 2), RightOOBReadMessage(0)); 133752fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany // Zero bytes are not terminators and don't prevent from OOB. 133852fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany s1[size - 1] = '\0'; 133952fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany s2[size - 1] = '\0'; 1340ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Ident(memcmp)(s1, s2, size + 1), RightOOBReadMessage(0)); 134152fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany free(s1); 134252fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany free(s2); 134352fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany} 134452fb238ccc45781e4e1d097ae1ee748c898b5825Kostya Serebryany 13450985ca240812ac5519168a6aecbccf4c513ae243Kostya SerebryanyTEST(AddressSanitizer, StrCatOOBTest) { 1346ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko // strcat() reads strlen(to) bytes from |to| before concatenating. 13470985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany size_t to_size = Ident(100); 13480985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany char *to = MallocAndMemsetString(to_size); 13490985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany to[0] = '\0'; 13500985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany size_t from_size = Ident(20); 13510985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany char *from = MallocAndMemsetString(from_size); 13520985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany from[from_size - 1] = '\0'; 13530985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // Normal strcat calls. 13540985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany strcat(to, from); 13550985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany strcat(to, from); 13560985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany strcat(to + from_size, from + from_size - 2); 135737b3fcd6fdec5740fe51fc1315c5d4d54313de98Alexander Potapenko // Passing an invalid pointer is an error even when concatenating an empty 135837b3fcd6fdec5740fe51fc1315c5d4d54313de98Alexander Potapenko // string. 1359ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko EXPECT_DEATH(strcat(to - 1, from + from_size - 1), LeftOOBAccessMessage(1)); 13600985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // One of arguments points to not allocated memory. 1361ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko EXPECT_DEATH(strcat(to - 1, from), LeftOOBAccessMessage(1)); 1362ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strcat(to, from - 1), LeftOOBReadMessage(1)); 1363ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strcat(to + to_size, from), RightOOBWriteMessage(0)); 1364ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strcat(to, from + from_size), RightOOBReadMessage(0)); 13650985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany 13660985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // "from" is not zero-terminated. 13670985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany from[from_size - 1] = 'z'; 1368ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strcat(to, from), RightOOBReadMessage(0)); 13690985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany from[from_size - 1] = '\0'; 13700985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // "to" is not zero-terminated. 13710985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany memset(to, 'z', to_size); 1372ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strcat(to, from), RightOOBWriteMessage(0)); 13730985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // "to" is too short to fit "from". 13740985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany to[to_size - from_size + 1] = '\0'; 1375ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strcat(to, from), RightOOBWriteMessage(0)); 13760985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // length of "to" is just enough. 13770985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany strcat(to, from + 1); 1378c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov 1379c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov free(to); 1380c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov free(from); 1381c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov} 1382c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov 1383c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey SamsonovTEST(AddressSanitizer, StrNCatOOBTest) { 1384ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko // strncat() reads strlen(to) bytes from |to| before concatenating. 1385c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov size_t to_size = Ident(100); 1386c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov char *to = MallocAndMemsetString(to_size); 1387c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov to[0] = '\0'; 1388c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov size_t from_size = Ident(20); 1389c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov char *from = MallocAndMemsetString(from_size); 1390c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // Normal strncat calls. 1391c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(to, from, 0); 1392c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(to, from, from_size); 1393c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov from[from_size - 1] = '\0'; 1394c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(to, from, 2 * from_size); 139537b3fcd6fdec5740fe51fc1315c5d4d54313de98Alexander Potapenko // Catenating empty string with an invalid string is still an error. 1396ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko EXPECT_DEATH(strncat(to - 1, from, 0), LeftOOBAccessMessage(1)); 1397c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(to, from + from_size - 1, 10); 1398c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // One of arguments points to not allocated memory. 1399ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko EXPECT_DEATH(strncat(to - 1, from, 2), LeftOOBAccessMessage(1)); 1400ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strncat(to, from - 1, 2), LeftOOBReadMessage(1)); 1401ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strncat(to + to_size, from, 2), RightOOBWriteMessage(0)); 1402ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strncat(to, from + from_size, 2), RightOOBReadMessage(0)); 1403c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov 1404c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov memset(from, 'z', from_size); 1405c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov memset(to, 'z', to_size); 1406c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov to[0] = '\0'; 1407c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // "from" is too short. 1408ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strncat(to, from, from_size + 1), RightOOBReadMessage(0)); 1409c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // "to" is not zero-terminated. 1410ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strncat(to + 1, from, 1), RightOOBWriteMessage(0)); 1411c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // "to" is too short to fit "from". 1412c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov to[0] = 'z'; 1413c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov to[to_size - from_size + 1] = '\0'; 1414ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(strncat(to, from, from_size - 1), RightOOBWriteMessage(0)); 1415c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // "to" is just enough. 1416c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(to, from, from_size - 2); 1417c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov 1418c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov free(to); 1419c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov free(from); 14200985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany} 14210985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany 1422c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryanystatic string OverlapErrorMessage(const string &func) { 1423c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany return func + "-param-overlap"; 1424c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany} 14251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 14261e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrArgsOverlapTest) { 14271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(100); 14281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *str = Ident((char*)malloc(size)); 14291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 14300503ce8824393174c17acb26d62551f18a0fd82aAlexander Potapenko// Do not check memcpy() on OS X 10.7 and later, where it actually aliases 14310503ce8824393174c17acb26d62551f18a0fd82aAlexander Potapenko// memmove(). 14320503ce8824393174c17acb26d62551f18a0fd82aAlexander Potapenko#if !defined(__APPLE__) || !defined(MAC_OS_X_VERSION_10_7) || \ 14330503ce8824393174c17acb26d62551f18a0fd82aAlexander Potapenko (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7) 14341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Check "memcpy". Use Ident() to avoid inlining. 14351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(str, 'z', size); 14361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(memcpy)(str + 1, str + 11, 10); 14371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(memcpy)(str, str, 0); 1438c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(Ident(memcpy)(str, str + 14, 15), OverlapErrorMessage("memcpy")); 1439c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(Ident(memcpy)(str + 14, str, 15), OverlapErrorMessage("memcpy")); 14400503ce8824393174c17acb26d62551f18a0fd82aAlexander Potapenko#endif 1441c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany 1442c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany // We do not treat memcpy with to==from as a bug. 1443c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany // See http://llvm.org/bugs/show_bug.cgi?id=11763. 1444c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany // EXPECT_DEATH(Ident(memcpy)(str + 20, str + 20, 1), 1445c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany // OverlapErrorMessage("memcpy")); 14461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 14471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Check "strcpy". 14481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(str, 'z', size); 14491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[9] = '\0'; 14501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strcpy(str + 10, str); 1451c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strcpy(str + 9, str), OverlapErrorMessage("strcpy")); 1452c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strcpy(str, str + 4), OverlapErrorMessage("strcpy")); 14531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strcpy(str, str + 5); 14541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 14551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Check "strncpy". 14561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(str, 'z', size); 14571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(str, str + 10, 10); 1458c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strncpy(str, str + 9, 10), OverlapErrorMessage("strncpy")); 1459c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strncpy(str + 9, str, 10), OverlapErrorMessage("strncpy")); 14601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany str[10] = '\0'; 14611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany strncpy(str + 11, str, 20); 1462c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strncpy(str + 10, str, 20), OverlapErrorMessage("strncpy")); 14631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 14640985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany // Check "strcat". 14650985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany memset(str, 'z', size); 14660985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany str[10] = '\0'; 14670985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany str[20] = '\0'; 14680985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany strcat(str, str + 10); 146937b3fcd6fdec5740fe51fc1315c5d4d54313de98Alexander Potapenko EXPECT_DEATH(strcat(str, str + 11), OverlapErrorMessage("strcat")); 14700985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany str[10] = '\0'; 14710985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany strcat(str + 11, str); 1472c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strcat(str, str + 9), OverlapErrorMessage("strcat")); 1473c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strcat(str + 9, str), OverlapErrorMessage("strcat")); 1474c5e72a3b7c60f1b2d9d9be3a07d397d5b5f872beKostya Serebryany EXPECT_DEATH(strcat(str + 10, str), OverlapErrorMessage("strcat")); 14750985ca240812ac5519168a6aecbccf4c513ae243Kostya Serebryany 1476c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov // Check "strncat". 1477c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov memset(str, 'z', size); 1478c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov str[10] = '\0'; 1479c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(str, str + 10, 10); // from is empty 148037b3fcd6fdec5740fe51fc1315c5d4d54313de98Alexander Potapenko EXPECT_DEATH(strncat(str, str + 11, 10), OverlapErrorMessage("strncat")); 1481c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov str[10] = '\0'; 1482c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov str[20] = '\0'; 1483c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov strncat(str + 5, str, 5); 1484c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov str[10] = '\0'; 1485c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov EXPECT_DEATH(strncat(str + 5, str, 6), OverlapErrorMessage("strncat")); 1486c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov EXPECT_DEATH(strncat(str, str + 9, 10), OverlapErrorMessage("strncat")); 1487c1bdd5adca453f2fae238a4c53ade35ae60b85daAlexey Samsonov 14881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(str); 14891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 14901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1491847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovvoid CallAtoi(const char *nptr) { 1492847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Ident(atoi(nptr)); 1493847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov} 1494847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovvoid CallAtol(const char *nptr) { 1495847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Ident(atol(nptr)); 1496847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov} 1497847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovvoid CallAtoll(const char *nptr) { 1498847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Ident(atoll(nptr)); 1499847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov} 1500847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovtypedef void(*PointerToCallAtoi)(const char*); 1501847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov 1502847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonovvoid RunAtoiOOBTest(PointerToCallAtoi Atoi) { 1503847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov char *array = MallocAndMemsetString(10, '1'); 1504847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov // Invalid pointer to the string. 1505ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Atoi(array + 11), RightOOBReadMessage(1)); 1506ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Atoi(array - 1), LeftOOBReadMessage(1)); 1507847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov // Die if a buffer doesn't have terminating NULL. 1508ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Atoi(array), RightOOBReadMessage(0)); 1509847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov // Make last symbol a terminating NULL or other non-digit. 1510847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov array[9] = '\0'; 1511847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Atoi(array); 1512847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov array[9] = 'a'; 1513847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Atoi(array); 1514847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Atoi(array + 9); 1515847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov // Sometimes we need to detect overflow if no digits are found. 1516847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov memset(array, ' ', 10); 1517ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Atoi(array), RightOOBReadMessage(0)); 1518847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov array[9] = '-'; 1519ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Atoi(array), RightOOBReadMessage(0)); 1520ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Atoi(array + 9), RightOOBReadMessage(0)); 1521847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov array[8] = '-'; 1522847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov Atoi(array); 1523fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany free(array); 1524847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov} 1525847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov 1526847f932ab0405757946433b81d3b2952b306b0bcAlexey SamsonovTEST(AddressSanitizer, AtoiAndFriendsOOBTest) { 1527847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov RunAtoiOOBTest(&CallAtoi); 1528847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov RunAtoiOOBTest(&CallAtol); 1529847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov RunAtoiOOBTest(&CallAtoll); 1530847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov} 1531847f932ab0405757946433b81d3b2952b306b0bcAlexey Samsonov 15328f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonovvoid CallStrtol(const char *nptr, char **endptr, int base) { 15338f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Ident(strtol(nptr, endptr, base)); 15348f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov} 15358f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonovvoid CallStrtoll(const char *nptr, char **endptr, int base) { 15368f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Ident(strtoll(nptr, endptr, base)); 15378f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov} 15388f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonovtypedef void(*PointerToCallStrtol)(const char*, char**, int); 15398f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov 15408f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonovvoid RunStrtolOOBTest(PointerToCallStrtol Strtol) { 154184ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov char *array = MallocAndMemsetString(3); 154284ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov char *endptr = NULL; 154384ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[0] = '1'; 154484ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[1] = '2'; 154584ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[2] = '3'; 154684ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov // Invalid pointer to the string. 1547ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array + 3, NULL, 0), RightOOBReadMessage(0)); 1548ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array - 1, NULL, 0), LeftOOBReadMessage(1)); 154984ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov // Buffer overflow if there is no terminating null (depends on base). 15508f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array, &endptr, 3); 155184ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov EXPECT_EQ(array + 2, endptr); 1552ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array, NULL, 0), RightOOBReadMessage(0)); 155384ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[2] = 'z'; 15548f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array, &endptr, 35); 155584ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov EXPECT_EQ(array + 2, endptr); 1556ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array, NULL, 36), RightOOBReadMessage(0)); 155784ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov // Add terminating zero to get rid of overflow. 155884ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[2] = '\0'; 15598f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array, NULL, 36); 156084ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov // Don't check for overflow if base is invalid. 15618f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array - 1, NULL, -1); 15628f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array + 3, NULL, 1); 156384ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov // Sometimes we need to detect overflow if no digits are found. 156484ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[0] = array[1] = array[2] = ' '; 1565ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array, NULL, 0), RightOOBReadMessage(0)); 156684ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[2] = '+'; 1567ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array, NULL, 0), RightOOBReadMessage(0)); 156884ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[2] = '-'; 1569ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(Strtol(array, NULL, 0), RightOOBReadMessage(0)); 157084ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[1] = '+'; 15718f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array, NULL, 0); 157284ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov array[1] = array[2] = 'z'; 15738f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array, &endptr, 0); 157484ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov EXPECT_EQ(array, endptr); 15758f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov Strtol(array + 2, NULL, 0); 157684ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov EXPECT_EQ(array, endptr); 1577fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany free(array); 157884ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov} 157984ba324b94d22a69acc823e845f9718fd2984e44Alexey Samsonov 15808f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey SamsonovTEST(AddressSanitizer, StrtollOOBTest) { 15818f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov RunStrtolOOBTest(&CallStrtoll); 15828f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov} 15838f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey SamsonovTEST(AddressSanitizer, StrtolOOBTest) { 15848f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov RunStrtolOOBTest(&CallStrtol); 15858f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov} 15868f6a77f3f59ebc5f40f235e51836f468f30b9110Alexey Samsonov 15871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// At the moment we instrument memcpy/memove/memset calls at compile time so we 15881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// can't handle OOB error if these functions are called by pointer, see disabled 15891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// MemIntrinsicCallByPointerTest below 15901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytypedef void*(*PointerToMemTransfer)(void*, const void*, size_t); 15911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytypedef void*(*PointerToMemSet)(void*, int, size_t); 15921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 15931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid CallMemSetByPointer(PointerToMemSet MemSet) { 15941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(100); 15951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *array = Ident((char*)malloc(size)); 1596ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(MemSet(array, 0, 101), RightOOBWriteMessage(0)); 15971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(array); 15981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 15991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid CallMemTransferByPointer(PointerToMemTransfer MemTransfer) { 16011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t size = Ident(100); 16021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *src = Ident((char*)malloc(size)); 16031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *dst = Ident((char*)malloc(size)); 1604ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(MemTransfer(dst, src, 101), RightOOBWriteMessage(0)); 16051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(src); 16061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(dst); 16071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 16081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16091e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_MemIntrinsicCallByPointerTest) { 16101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany CallMemSetByPointer(&memset); 16111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany CallMemTransferByPointer(&memcpy); 16121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany CallMemTransferByPointer(&memmove); 16131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 16141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1615c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany#if defined(__linux__) && !defined(ANDROID) && !defined(__ANDROID__) 16168530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya SerebryanyTEST(AddressSanitizer, pread) { 16176e6a7cfe0aac66eeefdf36dec78d7c536bff3c90Kostya Serebryany char *x = new char[10]; 16188530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany int fd = open("/proc/self/stat", O_RDONLY); 16198530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ASSERT_GT(fd, 0); 16208530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany EXPECT_DEATH(pread(fd, x, 15, 0), 16218530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ASAN_PCRE_DOTALL 16228530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany "AddressSanitizer: heap-buffer-overflow" 16238530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ".* is located 4 bytes to the right of 10-byte region"); 16248530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany close(fd); 1625fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany delete [] x; 16268530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany} 16278530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 16288530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya SerebryanyTEST(AddressSanitizer, pread64) { 16296e6a7cfe0aac66eeefdf36dec78d7c536bff3c90Kostya Serebryany char *x = new char[10]; 16308530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany int fd = open("/proc/self/stat", O_RDONLY); 16318530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ASSERT_GT(fd, 0); 16328530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany EXPECT_DEATH(pread64(fd, x, 15, 0), 16338530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ASAN_PCRE_DOTALL 16348530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany "AddressSanitizer: heap-buffer-overflow" 16358530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ".* is located 4 bytes to the right of 10-byte region"); 16368530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany close(fd); 1637fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany delete [] x; 16388530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany} 16398530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 16408530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya SerebryanyTEST(AddressSanitizer, read) { 16416e6a7cfe0aac66eeefdf36dec78d7c536bff3c90Kostya Serebryany char *x = new char[10]; 16428530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany int fd = open("/proc/self/stat", O_RDONLY); 16438530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ASSERT_GT(fd, 0); 16448530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany EXPECT_DEATH(read(fd, x, 15), 16458530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ASAN_PCRE_DOTALL 16468530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany "AddressSanitizer: heap-buffer-overflow" 16478530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany ".* is located 4 bytes to the right of 10-byte region"); 16488530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany close(fd); 1649fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany delete [] x; 16508530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany} 16518530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 1652c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany#endif // defined(__linux__) && !defined(ANDROID) && !defined(__ANDROID__) 16538530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 16541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This test case fails 16551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Clang optimizes memcpy/memset calls which lead to unaligned access 16561e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_MemIntrinsicUnalignedAccessTest) { 16571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int size = Ident(4096); 16581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *s = Ident((char*)malloc(size)); 1659ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(memset(s + size - 1, 0, 2), RightOOBWriteMessage(0)); 16601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(s); 16611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 16621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(samsonov): Add a test with malloc(0) 16641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(samsonov): Add tests for str* and mem* functions. 16651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1666938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static int LargeFunction(bool do_bad_access) { 16671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = new int[100]; 16681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[0]++; 16691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[1]++; 16701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[2]++; 16711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[3]++; 16721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[4]++; 16731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[5]++; 16741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[6]++; 16751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[7]++; 16761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[8]++; 16771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[9]++; 16781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[do_bad_access ? 100 : 0]++; int res = __LINE__; 16801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[10]++; 16821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[11]++; 16831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[12]++; 16841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[13]++; 16851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[14]++; 16861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[15]++; 16871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[16]++; 16881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[17]++; 16891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[18]++; 16901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[19]++; 16911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete x; 16931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return res; 16941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 16951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 16961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Test the we have correct debug info for the failing instruction. 16971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This test requires the in-process symbolizer to be enabled by default. 16981e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_LargeFunctionSymbolizeTest) { 16991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int failing_line = LargeFunction(false); 17001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_warning[128]; 17015a15541fc2bbe46a5ce0cd802b5c1055f2ffb14eKostya Serebryany sprintf(expected_warning, "LargeFunction.*asan_test.*:%d", failing_line); 17021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(LargeFunction(true), expected_warning); 17031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Check that we unwind and symbolize correctly. 17061e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_MallocFreeUnwindAndSymbolizeTest) { 17071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = (int*)malloc_aaa(sizeof(int)); 17081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *a = 1; 17091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(a); 17101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(*a = 1, "free_ccc.*free_bbb.*free_aaa.*" 17111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "malloc_fff.*malloc_eee.*malloc_ddd"); 17121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1714716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryanystatic void TryToSetThreadName(const char *name) { 1715716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#ifdef __linux__ 1716716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany prctl(PR_SET_NAME, (unsigned long)name, 0, 0, 0); 1717716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#endif 1718716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany} 1719716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany 17201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadedTestAlloc(void *a) { 1721716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany TryToSetThreadName("AllocThr"); 17221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int **p = (int**)a; 17231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *p = new int; 17241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 17251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadedTestFree(void *a) { 1728716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany TryToSetThreadName("FreeThr"); 17291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int **p = (int**)a; 17301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete *p; 17311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 17321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadedTestUse(void *a) { 1735716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany TryToSetThreadName("UseThr"); 17361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int **p = (int**)a; 17371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany **p = 1; 17381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 17391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid ThreadedTestSpawn() { 17421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t; 17431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x; 17442697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestAlloc, &x); 17452697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 17462697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestFree, &x); 17472697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 17482697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestUse, &x); 17492697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 17501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17521e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadedTest) { 17531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(ThreadedTestSpawn(), 17541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ASAN_PCRE_DOTALL 17551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "Thread T.*created" 17561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ".*Thread T.*created" 17571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ".*Thread T.*created"); 17581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1760716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#ifdef __linux__ 1761716e2f25123bf9b20fbc6b582803a3929b78b96dKostya SerebryanyTEST(AddressSanitizer, ThreadNamesTest) { 1762716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany // ThreadedTestSpawn(); 1763716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany EXPECT_DEATH(ThreadedTestSpawn(), 1764716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany ASAN_PCRE_DOTALL 1765a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany "WRITE .*thread T. .UseThr." 1766a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*freed by thread T. .FreeThr. here:" 1767a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*previously allocated by thread T. .AllocThr. here:" 1768a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*Thread T. .UseThr. created by T. here:" 1769a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*Thread T. .FreeThr. created by T. here:" 1770a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*Thread T. .AllocThr. created by T. here:" 1771716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany ""); 1772716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany} 1773716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#endif 1774716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany 17751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_NEEDS_SEGV 17761e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ShadowGapTest) { 17775af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany#if SANITIZER_WORDSIZE == 32 17781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *addr = (char*)0x22000000; 17791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 17801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *addr = (char*)0x0000100000080000; 17811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 1782ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany EXPECT_DEATH(*addr = 1, "AddressSanitizer: SEGV on unknown"); 17831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // ASAN_NEEDS_SEGV 17851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyextern "C" { 1787938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void UseThenFreeThenUse() { 17881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *x = Ident((char*)malloc(8)); 17891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *x = 1; 17901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(x); 17911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *x = 2; 17921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17951e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, UseThenFreeThenUseTest) { 17961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(UseThenFreeThenUse(), "freed by thread"); 17971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 17981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 17991e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrDupTest) { 18001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(strdup(Ident("123"))); 18011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 18021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Currently we create and poison redzone at right of global variables. 18041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanychar glob5[5]; 18051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic char static110[110]; 18061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyconst char ConstGlob[7] = {1, 2, 3, 4, 5, 6, 7}; 18071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic const char StaticConstGlob[3] = {9, 8, 7}; 18081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyextern int GlobalsTest(int x); 18091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18101e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GlobalTest) { 18111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char func_static15[15]; 18121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char fs1[10]; 18141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char fs2[10]; 18151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char fs3[10]; 18161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(0)] = 0; 18181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(1)] = 0; 18191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(2)] = 0; 18201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(3)] = 0; 18211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(4)] = 0; 18221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(glob5[Ident(5)] = 0, 18241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "0 bytes to the right of global variable.*glob5.* size 5"); 18251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(glob5[Ident(5+6)] = 0, 18261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "6 bytes to the right of global variable.*glob5.* size 5"); 18271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(static110); // avoid optimizations 18281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static110[Ident(0)] = 0; 18291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static110[Ident(109)] = 0; 18301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(static110[Ident(110)] = 0, 18311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "0 bytes to the right of global variable"); 18321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(static110[Ident(110+7)] = 0, 18331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "7 bytes to the right of global variable"); 18341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(func_static15); // avoid optimizations 18361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany func_static15[Ident(0)] = 0; 18371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(func_static15[Ident(15)] = 0, 18381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "0 bytes to the right of global variable"); 18391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(func_static15[Ident(15 + 9)] = 0, 18401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "9 bytes to the right of global variable"); 18411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(fs1); 18431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(fs2); 18441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(fs3); 18451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // We don't create left redzones, so this is not 100% guaranteed to fail. 18471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // But most likely will. 18481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(fs2[Ident(-1)] = 0, "is located.*of global variable"); 18491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(Ident(ConstGlob)[8]), 18511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located 1 bytes to the right of .*ConstGlob"); 18521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(Ident(StaticConstGlob)[5]), 18531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located 2 bytes to the right of .*StaticConstGlob"); 18541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // call stuff from another file. 18561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany GlobalsTest(0); 18571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 18581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18591e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GlobalStringConstTest) { 18601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static const char *zoo = "FOOBAR123"; 18611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const char *p = Ident(zoo); 18621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(p[15]), "is ascii string 'FOOBAR123'"); 18631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 18641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1865c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya SerebryanyTEST(AddressSanitizer, FileNameInGlobalReportTest) { 1866c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany static char zoo[10]; 1867c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany const char *p = Ident(zoo); 1868c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany // The file name should be present in the report. 18695a15541fc2bbe46a5ce0cd802b5c1055f2ffb14eKostya Serebryany EXPECT_DEATH(Ident(p[15]), "zoo.*asan_test."); 1870c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany} 1871c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany 18721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyint *ReturnsPointerToALocalObject() { 18731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a = 0; 18741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return Ident(&a); 18751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 18761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1877918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany#if ASAN_UAR == 1 18781e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, LocalReferenceReturnTest) { 18791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *(*f)() = Ident(ReturnsPointerToALocalObject); 1880918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany int *p = f(); 1881918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany // Call 'f' a few more times, 'p' should still be poisoned. 1882918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany for (int i = 0; i < 32; i++) 1883918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany f(); 1884ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany EXPECT_DEATH(*p = 1, "AddressSanitizer: stack-use-after-return"); 1885918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany EXPECT_DEATH(*p = 1, "is located.*in frame .*ReturnsPointerToALocal"); 18861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1887918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany#endif 18881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytemplate <int kSize> 1890938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void FuncWithStack() { 18911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char x[kSize]; 18921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(x)[0] = 0; 18931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(x)[kSize-1] = 0; 18941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 18951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 18961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic void LotsOfStackReuse() { 18971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int LargeStack[10000]; 18981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(LargeStack)[0] = 0; 18991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 10000; i++) { 19001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 1>(); 19011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 2>(); 19021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 4>(); 19031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 8>(); 19041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 16>(); 19051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 32>(); 19061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 64>(); 19071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 128>(); 19081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 256>(); 19091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 512>(); 19101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(LargeStack)[0] = 0; 19111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 19121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 19131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 19141e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StressStackReuseTest) { 19151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany LotsOfStackReuse(); 19161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 19171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 19181e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadedStressStackReuseTest) { 19191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kNumThreads = 20; 19201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t[kNumThreads]; 19211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 19222697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t[i], 0, (void* (*)(void *x))LotsOfStackReuse, 0); 19231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 19241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 19252697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t[i], 0); 19261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 19271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 19281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1929f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryanystatic void *PthreadExit(void *a) { 1930f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany pthread_exit(0); 19317b7b55e99166511ce1e66bf6b79c46ae4aa60d17Evgeniy Stepanov return 0; 1932f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany} 1933f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany 1934f58f998066db0231e521169d2f50af439ceecb49Kostya SerebryanyTEST(AddressSanitizer, PthreadExitTest) { 1935f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany pthread_t t; 1936f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany for (int i = 0; i < 1000; i++) { 19372697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, PthreadExit, 0); 19382697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 1939f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany } 1940f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany} 1941f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany 19421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __EXCEPTIONS 1943938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void StackReuseAndException() { 19441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int large_stack[1000]; 19451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(large_stack); 19461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ASAN_THROW(1); 19471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 19481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 19491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(kcc): support exceptions with use-after-return. 19501e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_StressStackReuseAndExceptionsTest) { 19511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 10000; i++) { 19521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany try { 19531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StackReuseAndException(); 19541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } catch(...) { 19551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 19561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 19571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 19581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 19591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 19601e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MlockTest) { 19611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, mlockall(MCL_CURRENT)); 19621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, mlock((void*)0x12345, 0x5678)); 19631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, munlockall()); 19641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, munlock((void*)0x987, 0x654)); 19651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 19661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1967c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryanystruct LargeStruct { 1968c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany int foo[100]; 1969c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany}; 1970c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany 1971c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany// Test for bug http://llvm.org/bugs/show_bug.cgi?id=11763. 1972c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany// Struct copy should not cause asan warning even if lhs == rhs. 1973c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya SerebryanyTEST(AddressSanitizer, LargeStructCopyTest) { 1974c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany LargeStruct a; 1975c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany *Ident(&a) = *Ident(&a); 1976c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany} 1977c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany 19781cffef3e39cad4eb33606afbebac78d6637361acAlexey SamsonovATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS 19793be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryanystatic void NoAddressSafety() { 19803be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany char *foo = new char[10]; 19813be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany Ident(foo)[10] = 0; 19823be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany delete [] foo; 19833be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany} 19843be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany 19853be19f4fa3519e358fd41a5feda82c39a22ef107Kostya SerebryanyTEST(AddressSanitizer, AttributeNoAddressSafetyTest) { 19863be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany Ident(NoAddressSafety)(); 19873be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany} 19883be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany 1989fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryanystatic string MismatchStr(const string &str) { 1990fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany return string("AddressSanitizer: alloc-dealloc-mismatch \\(") + str; 1991fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany} 1992fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany 1993fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany// This test is disabled until we enable alloc_dealloc_mismatch by default. 1994fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany// The feature is also tested by lit tests. 1995fe6d91684bcda766593800f6307233f1a33d31f6Kostya SerebryanyTEST(AddressSanitizer, DISABLED_AllocDeallocMismatch) { 1996fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(free(Ident(new int)), 1997fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new vs free")); 1998fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(free(Ident(new int[2])), 1999fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new \\[\\] vs free")); 2000fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete (Ident(new int[2])), 2001fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new \\[\\] vs operator delete")); 2002fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete (Ident((int*)malloc(2 * sizeof(int)))), 2003fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("malloc vs operator delete")); 2004fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete [] (Ident(new int)), 2005fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new vs operator delete \\[\\]")); 2006fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete [] (Ident((int*)malloc(2 * sizeof(int)))), 2007fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("malloc vs operator delete \\[\\]")); 2008fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany} 2009fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany 20101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// ------------------ demo tests; run each one-by-one ------------- 20111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// e.g. --gtest_filter=*DemoOOBLeftHigh --gtest_also_run_disabled_tests 20121e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoThreadedTest) { 20131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ThreadedTestSpawn(); 20141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *SimpleBugOnSTack(void *x = 0) { 20171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char a[20]; 20181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[20] = 0; 20191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 20201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20221e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoStackTest) { 20231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SimpleBugOnSTack(); 20241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20261e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoThreadStackTest) { 20271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t; 20282697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, SimpleBugOnSTack, 0); 20292697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 20301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20321e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFLowIn) { 20331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(10, 0); 20341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20351e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFLowLeft) { 20361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(10, -2); 20371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20381e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFLowRight) { 20391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(10, 10); 20401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20421e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFHigh) { 20431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(kLargeMalloc, 0); 20441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20461e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoOOBLeftLow) { 20471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany oob_test<U1>(10, -1); 20481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20501e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoOOBLeftHigh) { 20511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany oob_test<U1>(kLargeMalloc, -1); 20521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20541e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoOOBRightLow) { 20551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany oob_test<U1>(10, 10); 20561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20581e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoOOBRightHigh) { 20591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany oob_test<U1>(kLargeMalloc, kLargeMalloc); 20601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20621e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoOOM) { 20635af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t size = SANITIZER_WORDSIZE == 64 ? (size_t)(1ULL << 40) : (0xf0000000); 20641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany printf("%p\n", malloc(size)); 20651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20671e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoDoubleFreeTest) { 20681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany DoubleFree(); 20691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20711e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoNullDerefTest) { 20721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = 0; 20731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[10] = 0; 20741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20761e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoFunctionStaticTest) { 20771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char a[100]; 20781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char b[100]; 20791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char c[100]; 20801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a); 20811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(b); 20821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(c); 20831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[5] = 0; 20841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(b)[105] = 0; 20851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[5] = 0; 20861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20881e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoTooMuchMemoryTest) { 20891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const size_t kAllocSize = (1 << 28) - 1024; 20901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t total_size = 0; 20911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany while (true) { 20921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *x = (char*)malloc(kAllocSize); 20931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(x, 0, kAllocSize); 20941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany total_size += kAllocSize; 20950aa04b3f432bc55e7c116d5280685ee3f243be8eKostya Serebryany fprintf(stderr, "total: %ldM %p\n", (long)total_size >> 20, x); 20961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 20971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 20981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 20994eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany// http://code.google.com/p/address-sanitizer/issues/detail?id=66 21000796393f2088e3b75c4110934451160eeb037fabKostya SerebryanyTEST(AddressSanitizer, BufferOverflowAfterManyFrees) { 21014eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany for (int i = 0; i < 1000000; i++) { 21024eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany delete [] (Ident(new char [8644])); 21034eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany } 21044eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany char *x = new char[8192]; 2105ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany EXPECT_DEATH(x[Ident(8192)] = 0, "AddressSanitizer: heap-buffer-overflow"); 21064eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany delete [] Ident(x); 21074eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany} 21084eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany 21091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __APPLE__ 21101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include "asan_mac_test.h" 2111effd6bf516b7109460647253aa1a62046ca9bb7aAlexander PotapenkoTEST(AddressSanitizerMac, CFAllocatorDefaultDoubleFree) { 21121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH( 211343d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko CFAllocatorDefaultDoubleFree(NULL), 21141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "attempting double-free"); 21151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 211743d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenkovoid CFAllocator_DoubleFreeOnPthread() { 211843d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko pthread_t child; 21192697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&child, NULL, CFAllocatorDefaultDoubleFree, NULL); 21202697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(child, NULL); // Shouldn't be reached. 212143d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko} 212243d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko 212375b19ebf25af204cf209d108997272822241d6daAlexander PotapenkoTEST(AddressSanitizerMac, CFAllocatorDefaultDoubleFree_ChildPhread) { 212443d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko EXPECT_DEATH(CFAllocator_DoubleFreeOnPthread(), "attempting double-free"); 2125f4e8fc675ab52d0b3022847764a70ed7f03817bdAlexander Potapenko} 212643d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko 212775b19ebf25af204cf209d108997272822241d6daAlexander Potapenkonamespace { 212875b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 212975b19ebf25af204cf209d108997272822241d6daAlexander Potapenkovoid *GLOB; 213075b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 213175b19ebf25af204cf209d108997272822241d6daAlexander Potapenkovoid *CFAllocatorAllocateToGlob(void *unused) { 213275b19ebf25af204cf209d108997272822241d6daAlexander Potapenko GLOB = CFAllocatorAllocate(NULL, 100, /*hint*/0); 213375b19ebf25af204cf209d108997272822241d6daAlexander Potapenko return NULL; 213475b19ebf25af204cf209d108997272822241d6daAlexander Potapenko} 213575b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 213675b19ebf25af204cf209d108997272822241d6daAlexander Potapenkovoid *CFAllocatorDeallocateFromGlob(void *unused) { 213775b19ebf25af204cf209d108997272822241d6daAlexander Potapenko char *p = (char*)GLOB; 213875b19ebf25af204cf209d108997272822241d6daAlexander Potapenko p[100] = 'A'; // ASan should report an error here. 213975b19ebf25af204cf209d108997272822241d6daAlexander Potapenko CFAllocatorDeallocate(NULL, GLOB); 214075b19ebf25af204cf209d108997272822241d6daAlexander Potapenko return NULL; 214175b19ebf25af204cf209d108997272822241d6daAlexander Potapenko} 214275b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 214375b19ebf25af204cf209d108997272822241d6daAlexander Potapenkovoid CFAllocator_PassMemoryToAnotherThread() { 214475b19ebf25af204cf209d108997272822241d6daAlexander Potapenko pthread_t th1, th2; 21452697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th1, NULL, CFAllocatorAllocateToGlob, NULL); 21462697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th1, NULL); 21472697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th2, NULL, CFAllocatorDeallocateFromGlob, NULL); 21482697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th2, NULL); 214975b19ebf25af204cf209d108997272822241d6daAlexander Potapenko} 215075b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 215175b19ebf25af204cf209d108997272822241d6daAlexander PotapenkoTEST(AddressSanitizerMac, CFAllocator_PassMemoryToAnotherThread) { 215275b19ebf25af204cf209d108997272822241d6daAlexander Potapenko EXPECT_DEATH(CFAllocator_PassMemoryToAnotherThread(), 215375b19ebf25af204cf209d108997272822241d6daAlexander Potapenko "heap-buffer-overflow"); 215475b19ebf25af204cf209d108997272822241d6daAlexander Potapenko} 215575b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 215675b19ebf25af204cf209d108997272822241d6daAlexander Potapenko} // namespace 215775b19ebf25af204cf209d108997272822241d6daAlexander Potapenko 2158effd6bf516b7109460647253aa1a62046ca9bb7aAlexander Potapenko// TODO(glider): figure out whether we still need these tests. Is it correct 2159effd6bf516b7109460647253aa1a62046ca9bb7aAlexander Potapenko// to intercept the non-default CFAllocators? 21601e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizerMac, DISABLED_CFAllocatorSystemDefaultDoubleFree) { 21611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH( 21621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany CFAllocatorSystemDefaultDoubleFree(), 21631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "attempting double-free"); 21641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 216643d03f3775677ca8e4727d49d1256de014351b95Alexander Potapenko// We're intercepting malloc, so kCFAllocatorMalloc is routed to ASan. 2167effd6bf516b7109460647253aa1a62046ca9bb7aAlexander PotapenkoTEST(AddressSanitizerMac, CFAllocatorMallocDoubleFree) { 21681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(CFAllocatorMallocDoubleFree(), "attempting double-free"); 21691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 21711e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizerMac, DISABLED_CFAllocatorMallocZoneDoubleFree) { 21721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(CFAllocatorMallocZoneDoubleFree(), "attempting double-free"); 21731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 217537a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko// For libdispatch tests below we check that ASan got to the shadow byte 217637a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko// legend, i.e. managed to print the thread stacks (this almost certainly 217737a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko// means that the libdispatch task creation has been intercepted correctly). 217896bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDDispatchAsync) { 21791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 21801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 218137a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDDispatchAsync(), "Shadow byte legend"); 21821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 218496bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDDispatchSync) { 21851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 21861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 218737a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDDispatchSync(), "Shadow byte legend"); 21881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 21901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 219196bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDReuseWqthreadsAsync) { 21921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 21931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 219437a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDReuseWqthreadsAsync(), "Shadow byte legend"); 21951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 21961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 219796bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDReuseWqthreadsSync) { 21981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 21991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 220037a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDReuseWqthreadsSync(), "Shadow byte legend"); 22011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 220396bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDDispatchAfter) { 22041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 22051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 220637a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDDispatchAfter(), "Shadow byte legend"); 22071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 220996bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDSourceEvent) { 22101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 22111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 221237a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDSourceEvent(), "Shadow byte legend"); 22131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 221596bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDSourceCancel) { 22161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 22171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 221837a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDSourceCancel(), "Shadow byte legend"); 22191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 222196bdefaabcd9ed4cb3401f5fbfb51fd964e03f5aKostya SerebryanyTEST(AddressSanitizerMac, GCDGroupAsync) { 22221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Make sure the whole ASan report is printed, i.e. that we don't die 22231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // on a CHECK. 222437a14418e494d3dfb27cd6bddcd9855df2c80ff5Alexander Potapenko EXPECT_DEATH(TestGCDGroupAsync(), "Shadow byte legend"); 22251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 22271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *MallocIntrospectionLockWorker(void *_) { 22281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kNumPointers = 100; 22291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int i; 22301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *pointers[kNumPointers]; 22311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (i = 0; i < kNumPointers; i++) { 22321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pointers[i] = malloc(i + 1); 22331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (i = 0; i < kNumPointers; i++) { 22351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(pointers[i]); 22361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 22381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return NULL; 22391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 22411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *MallocIntrospectionLockForker(void *_) { 22421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pid_t result = fork(); 22431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (result == -1) { 22441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany perror("fork"); 22451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(result != -1); 22471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (result == 0) { 22481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Call malloc in the child process to make sure we won't deadlock. 22491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *ptr = malloc(42); 22501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(ptr); 22511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany exit(0); 22521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 22531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Return in the parent process. 22541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return NULL; 22551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 22581e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizerMac, MallocIntrospectionLock) { 22591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Incorrect implementation of force_lock and force_unlock in our malloc zone 22601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // will cause forked processes to deadlock. 22611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // TODO(glider): need to detect that none of the child processes deadlocked. 22621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kNumWorkers = 5, kNumIterations = 100; 22631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int i, iter; 22641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (iter = 0; iter < kNumIterations; iter++) { 22651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t workers[kNumWorkers], forker; 22661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (i = 0; i < kNumWorkers; i++) { 22672697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&workers[i], 0, MallocIntrospectionLockWorker, 0); 22681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22692697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&forker, 0, MallocIntrospectionLockForker, 0); 22701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (i = 0; i < kNumWorkers; i++) { 22712697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(workers[i], 0); 22721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22732697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(forker, 0); 22741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 22771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *TSDAllocWorker(void *test_key) { 22781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (test_key) { 22791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *mem = malloc(10); 22801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_setspecific(*(pthread_key_t*)test_key, mem); 22811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 22821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return NULL; 22831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 22841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 22851e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizerMac, DISABLED_TSDWorkqueueTest) { 22861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t th; 22871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_t test_key; 22881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_create(&test_key, CallFreeOnWorkqueue); 22892697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th, NULL, TSDAllocWorker, &test_key); 22902697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th, NULL); 22911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_delete(test_key); 22921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2293fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko 2294fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko// Test that CFStringCreateCopy does not copy constant strings. 2295431e51782d62d1257348e41e24da6b544fe70507Alexander PotapenkoTEST(AddressSanitizerMac, CFStringCreateCopy) { 2296fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko CFStringRef str = CFSTR("Hello world!\n"); 2297fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko CFStringRef str2 = CFStringCreateCopy(0, str); 2298fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko EXPECT_EQ(str, str2); 2299fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko} 2300fb506cb56c7f47a9f0aa515d6f5ca3ed6533422fAlexander Potapenko 23018c9ccc655405dd8a41264fe7eb5f902700077d1aAlexander PotapenkoTEST(AddressSanitizerMac, NSObjectOOB) { 23028c9ccc655405dd8a41264fe7eb5f902700077d1aAlexander Potapenko // Make sure that our allocators are used for NSObjects. 23038c9ccc655405dd8a41264fe7eb5f902700077d1aAlexander Potapenko EXPECT_DEATH(TestOOBNSObjects(), "heap-buffer-overflow"); 23048c9ccc655405dd8a41264fe7eb5f902700077d1aAlexander Potapenko} 2305df42b619de6f7cbf23a68d91a924cfb44b9fd201Alexander Potapenko 2306df42b619de6f7cbf23a68d91a924cfb44b9fd201Alexander Potapenko// Make sure that correct pointer is passed to free() when deallocating a 2307df42b619de6f7cbf23a68d91a924cfb44b9fd201Alexander Potapenko// NSURL object. 2308df42b619de6f7cbf23a68d91a924cfb44b9fd201Alexander Potapenko// See http://code.google.com/p/address-sanitizer/issues/detail?id=70. 2309e205a9daec9ec4afed956cf5455889725b9192fbAlexander PotapenkoTEST(AddressSanitizerMac, NSURLDeallocation) { 2310df42b619de6f7cbf23a68d91a924cfb44b9fd201Alexander Potapenko TestNSURLDeallocation(); 2311df42b619de6f7cbf23a68d91a924cfb44b9fd201Alexander Potapenko} 2312ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko 2313ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko// See http://code.google.com/p/address-sanitizer/issues/detail?id=109. 2314ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander PotapenkoTEST(AddressSanitizerMac, Mstats) { 2315ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko malloc_statistics_t stats1, stats2; 2316ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko malloc_zone_statistics(/*all zones*/NULL, &stats1); 2317be9796d7148b89f20ca04ffdf3fa98ac84bd1141Richard Relph const size_t kMallocSize = 100000; 2318ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko void *alloc = Ident(malloc(kMallocSize)); 2319ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko malloc_zone_statistics(/*all zones*/NULL, &stats2); 2320ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko EXPECT_GT(stats2.blocks_in_use, stats1.blocks_in_use); 2321ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko EXPECT_GE(stats2.size_in_use - stats1.size_in_use, kMallocSize); 2322ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko free(alloc); 2323ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko // Even the default OSX allocator may not change the stats after free(). 2324ca2cdd989076d091d8c4d4c277f8b47d9b5903adAlexander Potapenko} 23251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 23261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 23275b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov// Test that instrumentation of stack allocations takes into account 23285b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov// AllocSize of a type, and not its StoreSize (16 vs 10 bytes for long double). 23295b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov// See http://llvm.org/bugs/show_bug.cgi?id=12047 for more details. 23305b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy StepanovTEST(AddressSanitizer, LongDoubleNegativeTest) { 23315b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov long double a, b; 23329b90e95d4dc59c6d97ed73b2470f5e21e7b346d5Kostya Serebryany static long double c; 23335b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov memcpy(Ident(&a), Ident(&b), sizeof(long double)); 23349b90e95d4dc59c6d97ed73b2470f5e21e7b346d5Kostya Serebryany memcpy(Ident(&c), Ident(&b), sizeof(long double)); 233576e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov} 2336