1 //===-- msan_test.cc ------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is a part of MemorySanitizer. 11 // 12 // MemorySanitizer unit tests. 13 //===----------------------------------------------------------------------===// 14 15 #ifndef MSAN_EXTERNAL_TEST_CONFIG 16 #include "msan_test_config.h" 17 #endif // MSAN_EXTERNAL_TEST_CONFIG 18 19 #include "sanitizer/msan_interface.h" 20 #include "msandr_test_so.h" 21 22 #include <inttypes.h> 23 #include <stdlib.h> 24 #include <stdarg.h> 25 #include <stdio.h> 26 #include <assert.h> 27 #include <wchar.h> 28 #include <math.h> 29 30 #include <arpa/inet.h> 31 #include <dlfcn.h> 32 #include <grp.h> 33 #include <unistd.h> 34 #include <link.h> 35 #include <limits.h> 36 #include <sys/time.h> 37 #include <sys/types.h> 38 #include <sys/stat.h> 39 #include <fcntl.h> 40 #include <sys/resource.h> 41 #include <sys/ioctl.h> 42 #include <sys/sysinfo.h> 43 #include <sys/utsname.h> 44 #include <sys/mman.h> 45 #include <sys/vfs.h> 46 #include <dirent.h> 47 #include <pwd.h> 48 #include <sys/socket.h> 49 #include <netdb.h> 50 51 #if defined(__i386__) || defined(__x86_64__) 52 # include <emmintrin.h> 53 # define MSAN_HAS_M128 1 54 #else 55 # define MSAN_HAS_M128 0 56 #endif 57 58 typedef unsigned char U1; 59 typedef unsigned short U2; // NOLINT 60 typedef unsigned int U4; 61 typedef unsigned long long U8; // NOLINT 62 typedef signed char S1; 63 typedef signed short S2; // NOLINT 64 typedef signed int S4; 65 typedef signed long long S8; // NOLINT 66 #define NOINLINE __attribute__((noinline)) 67 #define INLINE __attribute__((always_inline)) 68 69 static bool TrackingOrigins() { 70 S8 x; 71 __msan_set_origin(&x, sizeof(x), 0x1234); 72 U4 origin = __msan_get_origin(&x); 73 __msan_set_origin(&x, sizeof(x), 0); 74 return origin == 0x1234; 75 } 76 77 #define EXPECT_UMR(action) \ 78 do { \ 79 __msan_set_expect_umr(1); \ 80 action; \ 81 __msan_set_expect_umr(0); \ 82 } while (0) 83 84 #define EXPECT_UMR_O(action, origin) \ 85 do { \ 86 __msan_set_expect_umr(1); \ 87 action; \ 88 __msan_set_expect_umr(0); \ 89 if (TrackingOrigins()) \ 90 EXPECT_EQ(origin, __msan_get_umr_origin()); \ 91 } while (0) 92 93 #define EXPECT_UMR_S(action, stack_origin) \ 94 do { \ 95 __msan_set_expect_umr(1); \ 96 action; \ 97 __msan_set_expect_umr(0); \ 98 U4 id = __msan_get_umr_origin(); \ 99 const char *str = __msan_get_origin_descr_if_stack(id); \ 100 if (!str || strcmp(str, stack_origin)) { \ 101 fprintf(stderr, "EXPECT_POISONED_S: id=%u %s, %s", \ 102 id, stack_origin, str); \ 103 EXPECT_EQ(1, 0); \ 104 } \ 105 } while (0) 106 107 #define EXPECT_POISONED(x) ExpectPoisoned(x) 108 109 template<typename T> 110 void ExpectPoisoned(const T& t) { 111 EXPECT_NE(-1, __msan_test_shadow((void*)&t, sizeof(t))); 112 } 113 114 #define EXPECT_POISONED_O(x, origin) \ 115 ExpectPoisonedWithOrigin(x, origin) 116 117 template<typename T> 118 void ExpectPoisonedWithOrigin(const T& t, unsigned origin) { 119 EXPECT_NE(-1, __msan_test_shadow((void*)&t, sizeof(t))); 120 if (TrackingOrigins()) 121 EXPECT_EQ(origin, __msan_get_origin((void*)&t)); 122 } 123 124 #define EXPECT_POISONED_S(x, stack_origin) \ 125 ExpectPoisonedWithStackOrigin(x, stack_origin) 126 127 template<typename T> 128 void ExpectPoisonedWithStackOrigin(const T& t, const char *stack_origin) { 129 EXPECT_NE(-1, __msan_test_shadow((void*)&t, sizeof(t))); 130 U4 id = __msan_get_origin((void*)&t); 131 const char *str = __msan_get_origin_descr_if_stack(id); 132 if (!str || strcmp(str, stack_origin)) { 133 fprintf(stderr, "EXPECT_POISONED_S: id=%u %s, %s", 134 id, stack_origin, str); 135 EXPECT_EQ(1, 0); 136 } 137 } 138 139 #define EXPECT_NOT_POISONED(x) ExpectNotPoisoned(x) 140 141 template<typename T> 142 void ExpectNotPoisoned(const T& t) { 143 EXPECT_EQ(-1, __msan_test_shadow((void*)&t, sizeof(t))); 144 } 145 146 static U8 poisoned_array[100]; 147 template<class T> 148 T *GetPoisoned(int i = 0, T val = 0) { 149 T *res = (T*)&poisoned_array[i]; 150 *res = val; 151 __msan_poison(&poisoned_array[i], sizeof(T)); 152 return res; 153 } 154 155 template<class T> 156 T *GetPoisonedO(int i, U4 origin, T val = 0) { 157 T *res = (T*)&poisoned_array[i]; 158 *res = val; 159 __msan_poison(&poisoned_array[i], sizeof(T)); 160 __msan_set_origin(&poisoned_array[i], sizeof(T), origin); 161 return res; 162 } 163 164 // This function returns its parameter but in such a way that compiler 165 // can not prove it. 166 template<class T> 167 NOINLINE 168 static T Ident(T t) { 169 volatile T ret = t; 170 return ret; 171 } 172 173 template<class T> NOINLINE T ReturnPoisoned() { return *GetPoisoned<T>(); } 174 175 static volatile int g_one = 1; 176 static volatile int g_zero = 0; 177 static volatile int g_0 = 0; 178 static volatile int g_1 = 1; 179 180 S4 a_s4[100]; 181 S8 a_s8[100]; 182 183 // Check that malloc poisons memory. 184 // A lot of tests below depend on this. 185 TEST(MemorySanitizerSanity, PoisonInMalloc) { 186 int *x = (int*)malloc(sizeof(int)); 187 EXPECT_POISONED(*x); 188 free(x); 189 } 190 191 TEST(MemorySanitizer, NegativeTest1) { 192 S4 *x = GetPoisoned<S4>(); 193 if (g_one) 194 *x = 0; 195 EXPECT_NOT_POISONED(*x); 196 } 197 198 TEST(MemorySanitizer, PositiveTest1) { 199 // Load to store. 200 EXPECT_POISONED(*GetPoisoned<S1>()); 201 EXPECT_POISONED(*GetPoisoned<S2>()); 202 EXPECT_POISONED(*GetPoisoned<S4>()); 203 EXPECT_POISONED(*GetPoisoned<S8>()); 204 205 // S->S conversions. 206 EXPECT_POISONED(*GetPoisoned<S1>()); 207 EXPECT_POISONED(*GetPoisoned<S1>()); 208 EXPECT_POISONED(*GetPoisoned<S1>()); 209 210 EXPECT_POISONED(*GetPoisoned<S2>()); 211 EXPECT_POISONED(*GetPoisoned<S2>()); 212 EXPECT_POISONED(*GetPoisoned<S2>()); 213 214 EXPECT_POISONED(*GetPoisoned<S4>()); 215 EXPECT_POISONED(*GetPoisoned<S4>()); 216 EXPECT_POISONED(*GetPoisoned<S4>()); 217 218 EXPECT_POISONED(*GetPoisoned<S8>()); 219 EXPECT_POISONED(*GetPoisoned<S8>()); 220 EXPECT_POISONED(*GetPoisoned<S8>()); 221 222 // ZExt 223 EXPECT_POISONED(*GetPoisoned<U1>()); 224 EXPECT_POISONED(*GetPoisoned<U1>()); 225 EXPECT_POISONED(*GetPoisoned<U1>()); 226 EXPECT_POISONED(*GetPoisoned<U2>()); 227 EXPECT_POISONED(*GetPoisoned<U2>()); 228 EXPECT_POISONED(*GetPoisoned<U4>()); 229 230 // Unary ops. 231 EXPECT_POISONED(- *GetPoisoned<S4>()); 232 233 EXPECT_UMR(a_s4[g_zero] = 100 / *GetPoisoned<S4>(0, 1)); 234 235 236 a_s4[g_zero] = 1 - *GetPoisoned<S4>(); 237 a_s4[g_zero] = 1 + *GetPoisoned<S4>(); 238 } 239 240 TEST(MemorySanitizer, Phi1) { 241 S4 c; 242 if (g_one) { 243 c = *GetPoisoned<S4>(); 244 } else { 245 break_optimization(0); 246 c = 0; 247 } 248 EXPECT_POISONED(c); 249 } 250 251 TEST(MemorySanitizer, Phi2) { 252 S4 i = *GetPoisoned<S4>(); 253 S4 n = g_one; 254 EXPECT_UMR(for (; i < g_one; i++);); 255 EXPECT_POISONED(i); 256 } 257 258 NOINLINE void Arg1ExpectUMR(S4 a1) { EXPECT_POISONED(a1); } 259 NOINLINE void Arg2ExpectUMR(S4 a1, S4 a2) { EXPECT_POISONED(a2); } 260 NOINLINE void Arg3ExpectUMR(S1 a1, S4 a2, S8 a3) { EXPECT_POISONED(a3); } 261 262 TEST(MemorySanitizer, ArgTest) { 263 Arg1ExpectUMR(*GetPoisoned<S4>()); 264 Arg2ExpectUMR(0, *GetPoisoned<S4>()); 265 Arg3ExpectUMR(0, 1, *GetPoisoned<S8>()); 266 } 267 268 269 TEST(MemorySanitizer, CallAndRet) { 270 if (!__msan_has_dynamic_component()) return; 271 ReturnPoisoned<S1>(); 272 ReturnPoisoned<S2>(); 273 ReturnPoisoned<S4>(); 274 ReturnPoisoned<S8>(); 275 276 EXPECT_POISONED(ReturnPoisoned<S1>()); 277 EXPECT_POISONED(ReturnPoisoned<S2>()); 278 EXPECT_POISONED(ReturnPoisoned<S4>()); 279 EXPECT_POISONED(ReturnPoisoned<S8>()); 280 } 281 282 // malloc() in the following test may be optimized to produce a compile-time 283 // undef value. Check that we trap on the volatile assignment anyway. 284 TEST(MemorySanitizer, DISABLED_MallocNoIdent) { 285 S4 *x = (int*)malloc(sizeof(S4)); 286 EXPECT_POISONED(*x); 287 free(x); 288 } 289 290 TEST(MemorySanitizer, Malloc) { 291 S4 *x = (int*)Ident(malloc(sizeof(S4))); 292 EXPECT_POISONED(*x); 293 free(x); 294 } 295 296 TEST(MemorySanitizer, Realloc) { 297 S4 *x = (int*)Ident(realloc(0, sizeof(S4))); 298 EXPECT_POISONED(x[0]); 299 x[0] = 1; 300 x = (int*)Ident(realloc(x, 2 * sizeof(S4))); 301 EXPECT_NOT_POISONED(x[0]); // Ok, was inited before. 302 EXPECT_POISONED(x[1]); 303 x = (int*)Ident(realloc(x, 3 * sizeof(S4))); 304 EXPECT_NOT_POISONED(x[0]); // Ok, was inited before. 305 EXPECT_POISONED(x[2]); 306 EXPECT_POISONED(x[1]); 307 x[2] = 1; // Init this here. Check that after realloc it is poisoned again. 308 x = (int*)Ident(realloc(x, 2 * sizeof(S4))); 309 EXPECT_NOT_POISONED(x[0]); // Ok, was inited before. 310 EXPECT_POISONED(x[1]); 311 x = (int*)Ident(realloc(x, 3 * sizeof(S4))); 312 EXPECT_POISONED(x[1]); 313 EXPECT_POISONED(x[2]); 314 free(x); 315 } 316 317 TEST(MemorySanitizer, Calloc) { 318 S4 *x = (int*)Ident(calloc(1, sizeof(S4))); 319 EXPECT_NOT_POISONED(*x); // Should not be poisoned. 320 // EXPECT_EQ(0, *x); 321 free(x); 322 } 323 324 TEST(MemorySanitizer, AndOr) { 325 U4 *p = GetPoisoned<U4>(); 326 // We poison two bytes in the midle of a 4-byte word to make the test 327 // correct regardless of endianness. 328 ((U1*)p)[1] = 0; 329 ((U1*)p)[2] = 0xff; 330 EXPECT_NOT_POISONED(*p & 0x00ffff00); 331 EXPECT_NOT_POISONED(*p & 0x00ff0000); 332 EXPECT_NOT_POISONED(*p & 0x0000ff00); 333 EXPECT_POISONED(*p & 0xff000000); 334 EXPECT_POISONED(*p & 0x000000ff); 335 EXPECT_POISONED(*p & 0x0000ffff); 336 EXPECT_POISONED(*p & 0xffff0000); 337 338 EXPECT_NOT_POISONED(*p | 0xff0000ff); 339 EXPECT_NOT_POISONED(*p | 0xff00ffff); 340 EXPECT_NOT_POISONED(*p | 0xffff00ff); 341 EXPECT_POISONED(*p | 0xff000000); 342 EXPECT_POISONED(*p | 0x000000ff); 343 EXPECT_POISONED(*p | 0x0000ffff); 344 EXPECT_POISONED(*p | 0xffff0000); 345 346 EXPECT_POISONED(*GetPoisoned<bool>() & *GetPoisoned<bool>()); 347 } 348 349 template<class T> 350 static bool applyNot(T value, T shadow) { 351 __msan_partial_poison(&value, &shadow, sizeof(T)); 352 return !value; 353 } 354 355 TEST(MemorySanitizer, Not) { 356 EXPECT_NOT_POISONED(applyNot<U4>(0x0, 0x0)); 357 EXPECT_NOT_POISONED(applyNot<U4>(0xFFFFFFFF, 0x0)); 358 EXPECT_POISONED(applyNot<U4>(0xFFFFFFFF, 0xFFFFFFFF)); 359 EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x0FFFFFFF)); 360 EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x00FFFFFF)); 361 EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x0000FFFF)); 362 EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x00000000)); 363 EXPECT_POISONED(applyNot<U4>(0xFF000000, 0xFF000000)); 364 EXPECT_NOT_POISONED(applyNot<U4>(0xFF800000, 0xFF000000)); 365 EXPECT_POISONED(applyNot<U4>(0x00008000, 0x00008000)); 366 367 EXPECT_NOT_POISONED(applyNot<U1>(0x0, 0x0)); 368 EXPECT_NOT_POISONED(applyNot<U1>(0xFF, 0xFE)); 369 EXPECT_NOT_POISONED(applyNot<U1>(0xFF, 0x0)); 370 EXPECT_POISONED(applyNot<U1>(0xFF, 0xFF)); 371 372 EXPECT_POISONED(applyNot<void*>((void*)0xFFFFFF, (void*)(-1))); 373 EXPECT_NOT_POISONED(applyNot<void*>((void*)0xFFFFFF, (void*)(-2))); 374 } 375 376 TEST(MemorySanitizer, Shift) { 377 U4 *up = GetPoisoned<U4>(); 378 ((U1*)up)[0] = 0; 379 ((U1*)up)[3] = 0xff; 380 EXPECT_NOT_POISONED(*up >> 30); 381 EXPECT_NOT_POISONED(*up >> 24); 382 EXPECT_POISONED(*up >> 23); 383 EXPECT_POISONED(*up >> 10); 384 385 EXPECT_NOT_POISONED(*up << 30); 386 EXPECT_NOT_POISONED(*up << 24); 387 EXPECT_POISONED(*up << 23); 388 EXPECT_POISONED(*up << 10); 389 390 S4 *sp = (S4*)up; 391 EXPECT_NOT_POISONED(*sp >> 30); 392 EXPECT_NOT_POISONED(*sp >> 24); 393 EXPECT_POISONED(*sp >> 23); 394 EXPECT_POISONED(*sp >> 10); 395 396 sp = GetPoisoned<S4>(); 397 ((S1*)sp)[1] = 0; 398 ((S1*)sp)[2] = 0; 399 EXPECT_POISONED(*sp >> 31); 400 401 EXPECT_POISONED(100 >> *GetPoisoned<S4>()); 402 EXPECT_POISONED(100U >> *GetPoisoned<S4>()); 403 } 404 405 NOINLINE static int GetPoisonedZero() { 406 int *zero = new int; 407 *zero = 0; 408 __msan_poison(zero, sizeof(*zero)); 409 int res = *zero; 410 delete zero; 411 return res; 412 } 413 414 TEST(MemorySanitizer, LoadFromDirtyAddress) { 415 int *a = new int; 416 *a = 0; 417 EXPECT_UMR(break_optimization((void*)(U8)a[GetPoisonedZero()])); 418 delete a; 419 } 420 421 TEST(MemorySanitizer, StoreToDirtyAddress) { 422 int *a = new int; 423 EXPECT_UMR(a[GetPoisonedZero()] = 0); 424 break_optimization(a); 425 delete a; 426 } 427 428 429 NOINLINE void StackTestFunc() { 430 S4 p4; 431 S4 ok4 = 1; 432 S2 p2; 433 S2 ok2 = 1; 434 S1 p1; 435 S1 ok1 = 1; 436 break_optimization(&p4); 437 break_optimization(&ok4); 438 break_optimization(&p2); 439 break_optimization(&ok2); 440 break_optimization(&p1); 441 break_optimization(&ok1); 442 443 EXPECT_POISONED(p4); 444 EXPECT_POISONED(p2); 445 EXPECT_POISONED(p1); 446 EXPECT_NOT_POISONED(ok1); 447 EXPECT_NOT_POISONED(ok2); 448 EXPECT_NOT_POISONED(ok4); 449 } 450 451 TEST(MemorySanitizer, StackTest) { 452 StackTestFunc(); 453 } 454 455 NOINLINE void StackStressFunc() { 456 int foo[10000]; 457 break_optimization(foo); 458 } 459 460 TEST(MemorySanitizer, DISABLED_StackStressTest) { 461 for (int i = 0; i < 1000000; i++) 462 StackStressFunc(); 463 } 464 465 template<class T> 466 void TestFloatingPoint() { 467 static volatile T v; 468 static T g[100]; 469 break_optimization(&g); 470 T *x = GetPoisoned<T>(); 471 T *y = GetPoisoned<T>(1); 472 EXPECT_POISONED(*x); 473 EXPECT_POISONED((long long)*x); 474 EXPECT_POISONED((int)*x); 475 g[0] = *x; 476 g[1] = *x + *y; 477 g[2] = *x - *y; 478 g[3] = *x * *y; 479 } 480 481 TEST(MemorySanitizer, FloatingPointTest) { 482 TestFloatingPoint<float>(); 483 TestFloatingPoint<double>(); 484 } 485 486 TEST(MemorySanitizer, DynMem) { 487 S4 x = 0; 488 S4 *y = GetPoisoned<S4>(); 489 memcpy(y, &x, g_one * sizeof(S4)); 490 EXPECT_NOT_POISONED(*y); 491 } 492 493 static char *DynRetTestStr; 494 495 TEST(MemorySanitizer, DynRet) { 496 if (!__msan_has_dynamic_component()) return; 497 ReturnPoisoned<S8>(); 498 EXPECT_NOT_POISONED(clearenv()); 499 } 500 501 502 TEST(MemorySanitizer, DynRet1) { 503 if (!__msan_has_dynamic_component()) return; 504 ReturnPoisoned<S8>(); 505 } 506 507 struct LargeStruct { 508 S4 x[10]; 509 }; 510 511 NOINLINE 512 LargeStruct LargeRetTest() { 513 LargeStruct res; 514 res.x[0] = *GetPoisoned<S4>(); 515 res.x[1] = *GetPoisoned<S4>(); 516 res.x[2] = *GetPoisoned<S4>(); 517 res.x[3] = *GetPoisoned<S4>(); 518 res.x[4] = *GetPoisoned<S4>(); 519 res.x[5] = *GetPoisoned<S4>(); 520 res.x[6] = *GetPoisoned<S4>(); 521 res.x[7] = *GetPoisoned<S4>(); 522 res.x[8] = *GetPoisoned<S4>(); 523 res.x[9] = *GetPoisoned<S4>(); 524 return res; 525 } 526 527 TEST(MemorySanitizer, strcmp) { 528 char s1[10]; 529 char s2[10]; 530 strncpy(s1, "foo", 10); 531 s2[0] = 'f'; 532 s2[1] = 'n'; 533 EXPECT_GT(strcmp(s1, s2), 0); 534 s2[1] = 'o'; 535 int res; 536 EXPECT_UMR(res = strcmp(s1, s2)); 537 EXPECT_NOT_POISONED(res); 538 EXPECT_EQ(strncmp(s1, s2, 1), 0); 539 } 540 541 TEST(MemorySanitizer, LargeRet) { 542 LargeStruct a = LargeRetTest(); 543 EXPECT_POISONED(a.x[0]); 544 EXPECT_POISONED(a.x[9]); 545 } 546 547 TEST(MemorySanitizer, fread) { 548 char *x = new char[32]; 549 FILE *f = fopen("/proc/self/stat", "r"); 550 assert(f); 551 fread(x, 1, 32, f); 552 EXPECT_NOT_POISONED(x[0]); 553 EXPECT_NOT_POISONED(x[16]); 554 EXPECT_NOT_POISONED(x[31]); 555 fclose(f); 556 delete x; 557 } 558 559 TEST(MemorySanitizer, read) { 560 char *x = new char[32]; 561 int fd = open("/proc/self/stat", O_RDONLY); 562 assert(fd > 0); 563 int sz = read(fd, x, 32); 564 assert(sz == 32); 565 EXPECT_NOT_POISONED(x[0]); 566 EXPECT_NOT_POISONED(x[16]); 567 EXPECT_NOT_POISONED(x[31]); 568 close(fd); 569 delete x; 570 } 571 572 TEST(MemorySanitizer, pread) { 573 char *x = new char[32]; 574 int fd = open("/proc/self/stat", O_RDONLY); 575 assert(fd > 0); 576 int sz = pread(fd, x, 32, 0); 577 assert(sz == 32); 578 EXPECT_NOT_POISONED(x[0]); 579 EXPECT_NOT_POISONED(x[16]); 580 EXPECT_NOT_POISONED(x[31]); 581 close(fd); 582 delete x; 583 } 584 585 TEST(MemorySanitizer, readv) { 586 char buf[2011]; 587 struct iovec iov[2]; 588 iov[0].iov_base = buf + 1; 589 iov[0].iov_len = 5; 590 iov[1].iov_base = buf + 10; 591 iov[1].iov_len = 2000; 592 int fd = open("/proc/self/stat", O_RDONLY); 593 assert(fd > 0); 594 int sz = readv(fd, iov, 2); 595 ASSERT_LT(sz, 5 + 2000); 596 ASSERT_GT(sz, iov[0].iov_len); 597 EXPECT_POISONED(buf[0]); 598 EXPECT_NOT_POISONED(buf[1]); 599 EXPECT_NOT_POISONED(buf[5]); 600 EXPECT_POISONED(buf[6]); 601 EXPECT_POISONED(buf[9]); 602 EXPECT_NOT_POISONED(buf[10]); 603 EXPECT_NOT_POISONED(buf[10 + (sz - 1) - 5]); 604 EXPECT_POISONED(buf[11 + (sz - 1) - 5]); 605 close(fd); 606 } 607 608 TEST(MemorySanitizer, preadv) { 609 char buf[2011]; 610 struct iovec iov[2]; 611 iov[0].iov_base = buf + 1; 612 iov[0].iov_len = 5; 613 iov[1].iov_base = buf + 10; 614 iov[1].iov_len = 2000; 615 int fd = open("/proc/self/stat", O_RDONLY); 616 assert(fd > 0); 617 int sz = preadv(fd, iov, 2, 3); 618 ASSERT_LT(sz, 5 + 2000); 619 ASSERT_GT(sz, iov[0].iov_len); 620 EXPECT_POISONED(buf[0]); 621 EXPECT_NOT_POISONED(buf[1]); 622 EXPECT_NOT_POISONED(buf[5]); 623 EXPECT_POISONED(buf[6]); 624 EXPECT_POISONED(buf[9]); 625 EXPECT_NOT_POISONED(buf[10]); 626 EXPECT_NOT_POISONED(buf[10 + (sz - 1) - 5]); 627 EXPECT_POISONED(buf[11 + (sz - 1) - 5]); 628 close(fd); 629 } 630 631 // FIXME: fails now. 632 TEST(MemorySanitizer, DISABLED_ioctl) { 633 struct winsize ws; 634 EXPECT_EQ(ioctl(2, TIOCGWINSZ, &ws), 0); 635 EXPECT_NOT_POISONED(ws.ws_col); 636 } 637 638 TEST(MemorySanitizer, readlink) { 639 char *x = new char[1000]; 640 readlink("/proc/self/exe", x, 1000); 641 EXPECT_NOT_POISONED(x[0]); 642 delete [] x; 643 } 644 645 646 TEST(MemorySanitizer, stat) { 647 struct stat* st = new struct stat; 648 int res = stat("/proc/self/stat", st); 649 assert(!res); 650 EXPECT_NOT_POISONED(st->st_dev); 651 EXPECT_NOT_POISONED(st->st_mode); 652 EXPECT_NOT_POISONED(st->st_size); 653 } 654 655 TEST(MemorySanitizer, statfs) { 656 struct statfs* st = new struct statfs; 657 int res = statfs("/", st); 658 assert(!res); 659 EXPECT_NOT_POISONED(st->f_type); 660 EXPECT_NOT_POISONED(st->f_bfree); 661 EXPECT_NOT_POISONED(st->f_namelen); 662 } 663 664 TEST(MemorySanitizer, pipe) { 665 int* pipefd = new int[2]; 666 int res = pipe(pipefd); 667 assert(!res); 668 EXPECT_NOT_POISONED(pipefd[0]); 669 EXPECT_NOT_POISONED(pipefd[1]); 670 close(pipefd[0]); 671 close(pipefd[1]); 672 } 673 674 TEST(MemorySanitizer, pipe2) { 675 int* pipefd = new int[2]; 676 int res = pipe2(pipefd, O_NONBLOCK); 677 assert(!res); 678 EXPECT_NOT_POISONED(pipefd[0]); 679 EXPECT_NOT_POISONED(pipefd[1]); 680 close(pipefd[0]); 681 close(pipefd[1]); 682 } 683 684 TEST(MemorySanitizer, socketpair) { 685 int sv[2]; 686 int res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv); 687 assert(!res); 688 EXPECT_NOT_POISONED(sv[0]); 689 EXPECT_NOT_POISONED(sv[1]); 690 close(sv[0]); 691 close(sv[1]); 692 } 693 694 TEST(MemorySanitizer, bind_getsockname) { 695 int sock = socket(AF_UNIX, SOCK_STREAM, 0); 696 697 struct sockaddr_in sai; 698 memset(&sai, 0, sizeof(sai)); 699 sai.sin_family = AF_UNIX; 700 int res = bind(sock, (struct sockaddr *)&sai, sizeof(sai)); 701 702 assert(!res); 703 char buf[200]; 704 socklen_t addrlen; 705 EXPECT_UMR(getsockname(sock, (struct sockaddr *)&buf, &addrlen)); 706 707 addrlen = sizeof(buf); 708 res = getsockname(sock, (struct sockaddr *)&buf, &addrlen); 709 EXPECT_NOT_POISONED(addrlen); 710 EXPECT_NOT_POISONED(buf[0]); 711 EXPECT_NOT_POISONED(buf[addrlen - 1]); 712 EXPECT_POISONED(buf[addrlen]); 713 close(sock); 714 } 715 716 TEST(MemorySanitizer, accept) { 717 int listen_socket = socket(AF_INET, SOCK_STREAM, 0); 718 ASSERT_LT(0, listen_socket); 719 720 struct sockaddr_in sai; 721 sai.sin_family = AF_INET; 722 sai.sin_port = 0; 723 sai.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 724 int res = bind(listen_socket, (struct sockaddr *)&sai, sizeof(sai)); 725 ASSERT_EQ(0, res); 726 727 res = listen(listen_socket, 1); 728 ASSERT_EQ(0, res); 729 730 socklen_t sz = sizeof(sai); 731 res = getsockname(listen_socket, (struct sockaddr *)&sai, &sz); 732 ASSERT_EQ(0, res); 733 ASSERT_EQ(sizeof(sai), sz); 734 735 int connect_socket = socket(AF_INET, SOCK_STREAM, 0); 736 ASSERT_LT(0, connect_socket); 737 res = fcntl(connect_socket, F_SETFL, O_NONBLOCK); 738 ASSERT_EQ(0, res); 739 res = connect(connect_socket, (struct sockaddr *)&sai, sizeof(sai)); 740 ASSERT_EQ(-1, res); 741 ASSERT_EQ(EINPROGRESS, errno); 742 743 __msan_poison(&sai, sizeof(sai)); 744 int new_sock = accept(listen_socket, (struct sockaddr *)&sai, &sz); 745 ASSERT_LT(0, new_sock); 746 ASSERT_EQ(sizeof(sai), sz); 747 EXPECT_NOT_POISONED(sai); 748 749 __msan_poison(&sai, sizeof(sai)); 750 res = getpeername(new_sock, (struct sockaddr *)&sai, &sz); 751 ASSERT_EQ(0, res); 752 ASSERT_EQ(sizeof(sai), sz); 753 EXPECT_NOT_POISONED(sai); 754 755 close(new_sock); 756 close(connect_socket); 757 close(listen_socket); 758 } 759 760 TEST(MemorySanitizer, getaddrinfo) { 761 struct addrinfo *ai; 762 struct addrinfo hints; 763 memset(&hints, 0, sizeof(hints)); 764 hints.ai_family = AF_INET; 765 int res = getaddrinfo("localhost", NULL, &hints, &ai); 766 ASSERT_EQ(0, res); 767 EXPECT_NOT_POISONED(*ai); 768 ASSERT_EQ(sizeof(sockaddr_in), ai->ai_addrlen); 769 EXPECT_NOT_POISONED(*(sockaddr_in*)ai->ai_addr); 770 } 771 772 TEST(MemorySanitizer, getnameinfo) { 773 struct sockaddr_in sai; 774 sai.sin_family = AF_INET; 775 sai.sin_port = 80; 776 sai.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 777 char host[500]; 778 char serv[500]; 779 int res = getnameinfo((struct sockaddr *)&sai, sizeof(sai), host, 780 sizeof(host), serv, sizeof(serv), 0); 781 ASSERT_EQ(0, res); 782 EXPECT_NOT_POISONED(host[0]); 783 EXPECT_POISONED(host[sizeof(host) - 1]); 784 785 ASSERT_NE(0, strlen(host)); 786 EXPECT_NOT_POISONED(serv[0]); 787 EXPECT_POISONED(serv[sizeof(serv) - 1]); 788 ASSERT_NE(0, strlen(serv)); 789 } 790 791 #define EXPECT_HOSTENT_NOT_POISONED(he) \ 792 do { \ 793 EXPECT_NOT_POISONED(*(he)); \ 794 ASSERT_NE((void *) 0, (he)->h_name); \ 795 ASSERT_NE((void *) 0, (he)->h_aliases); \ 796 ASSERT_NE((void *) 0, (he)->h_addr_list); \ 797 EXPECT_NOT_POISONED(strlen((he)->h_name)); \ 798 char **p = (he)->h_aliases; \ 799 while (*p) { \ 800 EXPECT_NOT_POISONED(strlen(*p)); \ 801 ++p; \ 802 } \ 803 char **q = (he)->h_addr_list; \ 804 while (*q) { \ 805 EXPECT_NOT_POISONED(*q[0]); \ 806 ++q; \ 807 } \ 808 EXPECT_NOT_POISONED(*q); \ 809 } while (0) 810 811 TEST(MemorySanitizer, gethostent) { 812 struct hostent *he = gethostent(); 813 ASSERT_NE((void *)NULL, he); 814 EXPECT_HOSTENT_NOT_POISONED(he); 815 } 816 817 #ifndef MSAN_TEST_DISABLE_GETHOSTBYNAME 818 819 TEST(MemorySanitizer, gethostbyname) { 820 struct hostent *he = gethostbyname("localhost"); 821 ASSERT_NE((void *)NULL, he); 822 EXPECT_HOSTENT_NOT_POISONED(he); 823 } 824 825 #endif // MSAN_TEST_DISABLE_GETHOSTBYNAME 826 827 TEST(MemorySanitizer, gethostbyname2) { 828 struct hostent *he = gethostbyname2("localhost", AF_INET); 829 ASSERT_NE((void *)NULL, he); 830 EXPECT_HOSTENT_NOT_POISONED(he); 831 } 832 833 TEST(MemorySanitizer, gethostbyaddr) { 834 in_addr_t addr = inet_addr("127.0.0.1"); 835 EXPECT_NOT_POISONED(addr); 836 struct hostent *he = gethostbyaddr(&addr, sizeof(addr), AF_INET); 837 ASSERT_NE((void *)NULL, he); 838 EXPECT_HOSTENT_NOT_POISONED(he); 839 } 840 841 TEST(MemorySanitizer, gethostent_r) { 842 char buf[2000]; 843 struct hostent he; 844 struct hostent *result; 845 int err; 846 int res = gethostent_r(&he, buf, sizeof(buf), &result, &err); 847 ASSERT_EQ(0, res); 848 EXPECT_NOT_POISONED(result); 849 ASSERT_NE((void *)NULL, result); 850 EXPECT_HOSTENT_NOT_POISONED(result); 851 EXPECT_NOT_POISONED(err); 852 } 853 854 TEST(MemorySanitizer, gethostbyname_r) { 855 char buf[2000]; 856 struct hostent he; 857 struct hostent *result; 858 int err; 859 int res = gethostbyname_r("localhost", &he, buf, sizeof(buf), &result, &err); 860 ASSERT_EQ(0, res); 861 EXPECT_NOT_POISONED(result); 862 ASSERT_NE((void *)NULL, result); 863 EXPECT_HOSTENT_NOT_POISONED(result); 864 EXPECT_NOT_POISONED(err); 865 } 866 867 TEST(MemorySanitizer, gethostbyname2_r) { 868 char buf[2000]; 869 struct hostent he; 870 struct hostent *result; 871 int err; 872 int res = gethostbyname2_r("localhost", AF_INET, &he, buf, sizeof(buf), 873 &result, &err); 874 ASSERT_EQ(0, res); 875 EXPECT_NOT_POISONED(result); 876 ASSERT_NE((void *)NULL, result); 877 EXPECT_HOSTENT_NOT_POISONED(result); 878 EXPECT_NOT_POISONED(err); 879 } 880 881 TEST(MemorySanitizer, gethostbyaddr_r) { 882 char buf[2000]; 883 struct hostent he; 884 struct hostent *result; 885 int err; 886 in_addr_t addr = inet_addr("127.0.0.1"); 887 EXPECT_NOT_POISONED(addr); 888 int res = gethostbyaddr_r(&addr, sizeof(addr), AF_INET, &he, buf, sizeof(buf), 889 &result, &err); 890 ASSERT_EQ(0, res); 891 EXPECT_NOT_POISONED(result); 892 ASSERT_NE((void *)NULL, result); 893 EXPECT_HOSTENT_NOT_POISONED(result); 894 EXPECT_NOT_POISONED(err); 895 } 896 897 TEST(MemorySanitizer, getsockopt) { 898 int sock = socket(AF_UNIX, SOCK_STREAM, 0); 899 struct linger l[2]; 900 socklen_t sz = sizeof(l[0]); 901 int res = getsockopt(sock, SOL_SOCKET, SO_LINGER, &l[0], &sz); 902 ASSERT_EQ(0, res); 903 ASSERT_EQ(sizeof(l[0]), sz); 904 EXPECT_NOT_POISONED(l[0]); 905 EXPECT_POISONED(*(char *)(l + 1)); 906 } 907 908 TEST(MemorySanitizer, getcwd) { 909 char path[PATH_MAX + 1]; 910 char* res = getcwd(path, sizeof(path)); 911 assert(res); 912 EXPECT_NOT_POISONED(path[0]); 913 } 914 915 TEST(MemorySanitizer, getcwd_gnu) { 916 char* res = getcwd(NULL, 0); 917 assert(res); 918 EXPECT_NOT_POISONED(res[0]); 919 free(res); 920 } 921 922 TEST(MemorySanitizer, get_current_dir_name) { 923 char* res = get_current_dir_name(); 924 assert(res); 925 EXPECT_NOT_POISONED(res[0]); 926 free(res); 927 } 928 929 TEST(MemorySanitizer, confstr) { 930 char buf[3]; 931 size_t res = confstr(_CS_PATH, buf, sizeof(buf)); 932 ASSERT_GT(res, sizeof(buf)); 933 EXPECT_NOT_POISONED(buf[0]); 934 EXPECT_NOT_POISONED(buf[sizeof(buf) - 1]); 935 936 char buf2[1000]; 937 res = confstr(_CS_PATH, buf2, sizeof(buf2)); 938 ASSERT_LT(res, sizeof(buf2)); 939 EXPECT_NOT_POISONED(buf2[0]); 940 EXPECT_NOT_POISONED(buf2[res - 1]); 941 EXPECT_POISONED(buf2[res]); 942 ASSERT_EQ(res, strlen(buf2) + 1); 943 } 944 945 TEST(MemorySanitizer, readdir) { 946 DIR *dir = opendir("."); 947 struct dirent *d = readdir(dir); 948 assert(d); 949 EXPECT_NOT_POISONED(d->d_name[0]); 950 closedir(dir); 951 } 952 953 TEST(MemorySanitizer, readdir_r) { 954 DIR *dir = opendir("."); 955 struct dirent d; 956 struct dirent *pd; 957 int res = readdir_r(dir, &d, &pd); 958 assert(!res); 959 EXPECT_NOT_POISONED(pd); 960 EXPECT_NOT_POISONED(d.d_name[0]); 961 closedir(dir); 962 } 963 964 TEST(MemorySanitizer, realpath) { 965 const char* relpath = "."; 966 char path[PATH_MAX + 1]; 967 char* res = realpath(relpath, path); 968 assert(res); 969 EXPECT_NOT_POISONED(path[0]); 970 } 971 972 TEST(MemorySanitizer, realpath_null) { 973 const char* relpath = "."; 974 char* res = realpath(relpath, NULL); 975 printf("%d, %s\n", errno, strerror(errno)); 976 assert(res); 977 EXPECT_NOT_POISONED(res[0]); 978 free(res); 979 } 980 981 TEST(MemorySanitizer, canonicalize_file_name) { 982 const char* relpath = "."; 983 char* res = canonicalize_file_name(relpath); 984 assert(res); 985 EXPECT_NOT_POISONED(res[0]); 986 free(res); 987 } 988 989 extern char **environ; 990 991 TEST(MemorySanitizer, setenv) { 992 setenv("AAA", "BBB", 1); 993 for (char **envp = environ; *envp; ++envp) { 994 EXPECT_NOT_POISONED(*envp); 995 EXPECT_NOT_POISONED(*envp[0]); 996 } 997 } 998 999 TEST(MemorySanitizer, putenv) { 1000 char s[] = "AAA=BBB"; 1001 putenv(s); 1002 for (char **envp = environ; *envp; ++envp) { 1003 EXPECT_NOT_POISONED(*envp); 1004 EXPECT_NOT_POISONED(*envp[0]); 1005 } 1006 } 1007 1008 TEST(MemorySanitizer, memcpy) { 1009 char* x = new char[2]; 1010 char* y = new char[2]; 1011 x[0] = 1; 1012 x[1] = *GetPoisoned<char>(); 1013 memcpy(y, x, 2); 1014 EXPECT_NOT_POISONED(y[0]); 1015 EXPECT_POISONED(y[1]); 1016 } 1017 1018 TEST(MemorySanitizer, memmove) { 1019 char* x = new char[2]; 1020 char* y = new char[2]; 1021 x[0] = 1; 1022 x[1] = *GetPoisoned<char>(); 1023 memmove(y, x, 2); 1024 EXPECT_NOT_POISONED(y[0]); 1025 EXPECT_POISONED(y[1]); 1026 } 1027 1028 TEST(MemorySanitizer, bcopy) { 1029 char* x = new char[2]; 1030 char* y = new char[2]; 1031 x[0] = 1; 1032 x[1] = *GetPoisoned<char>(); 1033 bcopy(x, y, 2); 1034 EXPECT_NOT_POISONED(y[0]); 1035 EXPECT_POISONED(y[1]); 1036 } 1037 1038 TEST(MemorySanitizer, strdup) { 1039 char buf[4] = "abc"; 1040 __msan_poison(buf + 2, sizeof(*buf)); 1041 char *x = strdup(buf); 1042 EXPECT_NOT_POISONED(x[0]); 1043 EXPECT_NOT_POISONED(x[1]); 1044 EXPECT_POISONED(x[2]); 1045 EXPECT_NOT_POISONED(x[3]); 1046 free(x); 1047 } 1048 1049 TEST(MemorySanitizer, strndup) { 1050 char buf[4] = "abc"; 1051 __msan_poison(buf + 2, sizeof(*buf)); 1052 char *x = strndup(buf, 3); 1053 EXPECT_NOT_POISONED(x[0]); 1054 EXPECT_NOT_POISONED(x[1]); 1055 EXPECT_POISONED(x[2]); 1056 EXPECT_NOT_POISONED(x[3]); 1057 free(x); 1058 } 1059 1060 TEST(MemorySanitizer, strndup_short) { 1061 char buf[4] = "abc"; 1062 __msan_poison(buf + 1, sizeof(*buf)); 1063 __msan_poison(buf + 2, sizeof(*buf)); 1064 char *x = strndup(buf, 2); 1065 EXPECT_NOT_POISONED(x[0]); 1066 EXPECT_POISONED(x[1]); 1067 EXPECT_NOT_POISONED(x[2]); 1068 free(x); 1069 } 1070 1071 1072 template<class T, int size> 1073 void TestOverlapMemmove() { 1074 T *x = new T[size]; 1075 assert(size >= 3); 1076 x[2] = 0; 1077 memmove(x, x + 1, (size - 1) * sizeof(T)); 1078 EXPECT_NOT_POISONED(x[1]); 1079 if (!__msan_has_dynamic_component()) { 1080 // FIXME: under DR we will lose this information 1081 // because accesses in memmove will unpoisin the shadow. 1082 // We need to use our own memove implementation instead of libc's. 1083 EXPECT_POISONED(x[0]); 1084 EXPECT_POISONED(x[2]); 1085 } 1086 delete [] x; 1087 } 1088 1089 TEST(MemorySanitizer, overlap_memmove) { 1090 TestOverlapMemmove<U1, 10>(); 1091 TestOverlapMemmove<U1, 1000>(); 1092 TestOverlapMemmove<U8, 4>(); 1093 TestOverlapMemmove<U8, 1000>(); 1094 } 1095 1096 TEST(MemorySanitizer, strcpy) { // NOLINT 1097 char* x = new char[3]; 1098 char* y = new char[3]; 1099 x[0] = 'a'; 1100 x[1] = *GetPoisoned<char>(1, 1); 1101 x[2] = 0; 1102 strcpy(y, x); // NOLINT 1103 EXPECT_NOT_POISONED(y[0]); 1104 EXPECT_POISONED(y[1]); 1105 EXPECT_NOT_POISONED(y[2]); 1106 } 1107 1108 TEST(MemorySanitizer, strncpy) { // NOLINT 1109 char* x = new char[3]; 1110 char* y = new char[3]; 1111 x[0] = 'a'; 1112 x[1] = *GetPoisoned<char>(1, 1); 1113 x[2] = 0; 1114 strncpy(y, x, 2); // NOLINT 1115 EXPECT_NOT_POISONED(y[0]); 1116 EXPECT_POISONED(y[1]); 1117 EXPECT_POISONED(y[2]); 1118 } 1119 1120 TEST(MemorySanitizer, stpcpy) { // NOLINT 1121 char* x = new char[3]; 1122 char* y = new char[3]; 1123 x[0] = 'a'; 1124 x[1] = *GetPoisoned<char>(1, 1); 1125 x[2] = 0; 1126 char *res = stpcpy(y, x); // NOLINT 1127 ASSERT_EQ(res, y + 2); 1128 EXPECT_NOT_POISONED(y[0]); 1129 EXPECT_POISONED(y[1]); 1130 EXPECT_NOT_POISONED(y[2]); 1131 } 1132 1133 TEST(MemorySanitizer, strtol) { 1134 char *e; 1135 assert(1 == strtol("1", &e, 10)); 1136 EXPECT_NOT_POISONED((S8) e); 1137 } 1138 1139 TEST(MemorySanitizer, strtoll) { 1140 char *e; 1141 assert(1 == strtoll("1", &e, 10)); 1142 EXPECT_NOT_POISONED((S8) e); 1143 } 1144 1145 TEST(MemorySanitizer, strtoul) { 1146 char *e; 1147 assert(1 == strtoul("1", &e, 10)); 1148 EXPECT_NOT_POISONED((S8) e); 1149 } 1150 1151 TEST(MemorySanitizer, strtoull) { 1152 char *e; 1153 assert(1 == strtoull("1", &e, 10)); 1154 EXPECT_NOT_POISONED((S8) e); 1155 } 1156 1157 TEST(MemorySanitizer, strtoimax) { 1158 char *e; 1159 assert(1 == strtoimax("1", &e, 10)); 1160 EXPECT_NOT_POISONED((S8) e); 1161 } 1162 1163 TEST(MemorySanitizer, strtoumax) { 1164 char *e; 1165 assert(1 == strtoumax("1", &e, 10)); 1166 EXPECT_NOT_POISONED((S8) e); 1167 } 1168 1169 TEST(MemorySanitizer, strtod) { 1170 char *e; 1171 assert(0 != strtod("1.5", &e)); 1172 EXPECT_NOT_POISONED((S8) e); 1173 } 1174 1175 TEST(MemorySanitizer, strtof) { 1176 char *e; 1177 assert(0 != strtof("1.5", &e)); 1178 EXPECT_NOT_POISONED((S8) e); 1179 } 1180 1181 TEST(MemorySanitizer, strtold) { 1182 char *e; 1183 assert(0 != strtold("1.5", &e)); 1184 EXPECT_NOT_POISONED((S8) e); 1185 } 1186 1187 TEST(MemorySanitizer, modf) { 1188 double x, y; 1189 x = modf(2.1, &y); 1190 EXPECT_NOT_POISONED(y); 1191 } 1192 1193 TEST(MemorySanitizer, modff) { 1194 float x, y; 1195 x = modff(2.1, &y); 1196 EXPECT_NOT_POISONED(y); 1197 } 1198 1199 TEST(MemorySanitizer, modfl) { 1200 long double x, y; 1201 x = modfl(2.1, &y); 1202 EXPECT_NOT_POISONED(y); 1203 } 1204 1205 TEST(MemorySanitizer, sprintf) { // NOLINT 1206 char buff[10]; 1207 break_optimization(buff); 1208 EXPECT_POISONED(buff[0]); 1209 int res = sprintf(buff, "%d", 1234567); // NOLINT 1210 assert(res == 7); 1211 assert(buff[0] == '1'); 1212 assert(buff[1] == '2'); 1213 assert(buff[2] == '3'); 1214 assert(buff[6] == '7'); 1215 assert(buff[7] == 0); 1216 EXPECT_POISONED(buff[8]); 1217 } 1218 1219 TEST(MemorySanitizer, snprintf) { 1220 char buff[10]; 1221 break_optimization(buff); 1222 EXPECT_POISONED(buff[0]); 1223 int res = snprintf(buff, sizeof(buff), "%d", 1234567); 1224 assert(res == 7); 1225 assert(buff[0] == '1'); 1226 assert(buff[1] == '2'); 1227 assert(buff[2] == '3'); 1228 assert(buff[6] == '7'); 1229 assert(buff[7] == 0); 1230 EXPECT_POISONED(buff[8]); 1231 } 1232 1233 TEST(MemorySanitizer, swprintf) { 1234 wchar_t buff[10]; 1235 assert(sizeof(wchar_t) == 4); 1236 break_optimization(buff); 1237 EXPECT_POISONED(buff[0]); 1238 int res = swprintf(buff, 9, L"%d", 1234567); 1239 assert(res == 7); 1240 assert(buff[0] == '1'); 1241 assert(buff[1] == '2'); 1242 assert(buff[2] == '3'); 1243 assert(buff[6] == '7'); 1244 assert(buff[7] == 0); 1245 EXPECT_POISONED(buff[8]); 1246 } 1247 1248 TEST(MemorySanitizer, asprintf) { // NOLINT 1249 char *pbuf; 1250 EXPECT_POISONED(pbuf); 1251 int res = asprintf(&pbuf, "%d", 1234567); // NOLINT 1252 assert(res == 7); 1253 EXPECT_NOT_POISONED(pbuf); 1254 assert(pbuf[0] == '1'); 1255 assert(pbuf[1] == '2'); 1256 assert(pbuf[2] == '3'); 1257 assert(pbuf[6] == '7'); 1258 assert(pbuf[7] == 0); 1259 free(pbuf); 1260 } 1261 1262 TEST(MemorySanitizer, mbstowcs) { 1263 const char *x = "abc"; 1264 wchar_t buff[10]; 1265 int res = mbstowcs(buff, x, 2); 1266 EXPECT_EQ(2, res); 1267 EXPECT_EQ(L'a', buff[0]); 1268 EXPECT_EQ(L'b', buff[1]); 1269 EXPECT_POISONED(buff[2]); 1270 res = mbstowcs(buff, x, 10); 1271 EXPECT_EQ(3, res); 1272 EXPECT_NOT_POISONED(buff[3]); 1273 } 1274 1275 TEST(MemorySanitizer, wcstombs) { 1276 const wchar_t *x = L"abc"; 1277 char buff[10]; 1278 int res = wcstombs(buff, x, 4); 1279 EXPECT_EQ(res, 3); 1280 EXPECT_EQ(buff[0], 'a'); 1281 EXPECT_EQ(buff[1], 'b'); 1282 EXPECT_EQ(buff[2], 'c'); 1283 } 1284 1285 TEST(MemorySanitizer, wcsrtombs) { 1286 const wchar_t *x = L"abc"; 1287 const wchar_t *p = x; 1288 char buff[10]; 1289 mbstate_t mbs; 1290 memset(&mbs, 0, sizeof(mbs)); 1291 int res = wcsrtombs(buff, &p, 4, &mbs); 1292 EXPECT_EQ(res, 3); 1293 EXPECT_EQ(buff[0], 'a'); 1294 EXPECT_EQ(buff[1], 'b'); 1295 EXPECT_EQ(buff[2], 'c'); 1296 EXPECT_EQ(buff[3], '\0'); 1297 EXPECT_POISONED(buff[4]); 1298 } 1299 1300 TEST(MemorySanitizer, wcsnrtombs) { 1301 const wchar_t *x = L"abc"; 1302 const wchar_t *p = x; 1303 char buff[10]; 1304 mbstate_t mbs; 1305 memset(&mbs, 0, sizeof(mbs)); 1306 int res = wcsnrtombs(buff, &p, 2, 4, &mbs); 1307 EXPECT_EQ(res, 2); 1308 EXPECT_EQ(buff[0], 'a'); 1309 EXPECT_EQ(buff[1], 'b'); 1310 EXPECT_POISONED(buff[2]); 1311 } 1312 1313 TEST(MemorySanitizer, mbtowc) { 1314 const char *x = "abc"; 1315 wchar_t wx; 1316 int res = mbtowc(&wx, x, 3); 1317 EXPECT_GT(res, 0); 1318 EXPECT_NOT_POISONED(wx); 1319 } 1320 1321 TEST(MemorySanitizer, mbrtowc) { 1322 const char *x = "abc"; 1323 wchar_t wx; 1324 mbstate_t mbs; 1325 memset(&mbs, 0, sizeof(mbs)); 1326 int res = mbrtowc(&wx, x, 3, &mbs); 1327 EXPECT_GT(res, 0); 1328 EXPECT_NOT_POISONED(wx); 1329 } 1330 1331 TEST(MemorySanitizer, gettimeofday) { 1332 struct timeval tv; 1333 struct timezone tz; 1334 break_optimization(&tv); 1335 break_optimization(&tz); 1336 assert(sizeof(tv) == 16); 1337 assert(sizeof(tz) == 8); 1338 EXPECT_POISONED(tv.tv_sec); 1339 EXPECT_POISONED(tv.tv_usec); 1340 EXPECT_POISONED(tz.tz_minuteswest); 1341 EXPECT_POISONED(tz.tz_dsttime); 1342 assert(0 == gettimeofday(&tv, &tz)); 1343 EXPECT_NOT_POISONED(tv.tv_sec); 1344 EXPECT_NOT_POISONED(tv.tv_usec); 1345 EXPECT_NOT_POISONED(tz.tz_minuteswest); 1346 EXPECT_NOT_POISONED(tz.tz_dsttime); 1347 } 1348 1349 TEST(MemorySanitizer, clock_gettime) { 1350 struct timespec tp; 1351 EXPECT_POISONED(tp.tv_sec); 1352 EXPECT_POISONED(tp.tv_nsec); 1353 assert(0 == clock_gettime(CLOCK_REALTIME, &tp)); 1354 EXPECT_NOT_POISONED(tp.tv_sec); 1355 EXPECT_NOT_POISONED(tp.tv_nsec); 1356 } 1357 1358 TEST(MemorySanitizer, clock_getres) { 1359 struct timespec tp; 1360 EXPECT_POISONED(tp.tv_sec); 1361 EXPECT_POISONED(tp.tv_nsec); 1362 assert(0 == clock_getres(CLOCK_REALTIME, 0)); 1363 EXPECT_POISONED(tp.tv_sec); 1364 EXPECT_POISONED(tp.tv_nsec); 1365 assert(0 == clock_getres(CLOCK_REALTIME, &tp)); 1366 EXPECT_NOT_POISONED(tp.tv_sec); 1367 EXPECT_NOT_POISONED(tp.tv_nsec); 1368 } 1369 1370 TEST(MemorySanitizer, getitimer) { 1371 struct itimerval it1, it2; 1372 int res; 1373 EXPECT_POISONED(it1.it_interval.tv_sec); 1374 EXPECT_POISONED(it1.it_interval.tv_usec); 1375 EXPECT_POISONED(it1.it_value.tv_sec); 1376 EXPECT_POISONED(it1.it_value.tv_usec); 1377 res = getitimer(ITIMER_VIRTUAL, &it1); 1378 assert(!res); 1379 EXPECT_NOT_POISONED(it1.it_interval.tv_sec); 1380 EXPECT_NOT_POISONED(it1.it_interval.tv_usec); 1381 EXPECT_NOT_POISONED(it1.it_value.tv_sec); 1382 EXPECT_NOT_POISONED(it1.it_value.tv_usec); 1383 1384 it1.it_interval.tv_sec = it1.it_value.tv_sec = 10000; 1385 it1.it_interval.tv_usec = it1.it_value.tv_usec = 0; 1386 1387 res = setitimer(ITIMER_VIRTUAL, &it1, &it2); 1388 assert(!res); 1389 EXPECT_NOT_POISONED(it2.it_interval.tv_sec); 1390 EXPECT_NOT_POISONED(it2.it_interval.tv_usec); 1391 EXPECT_NOT_POISONED(it2.it_value.tv_sec); 1392 EXPECT_NOT_POISONED(it2.it_value.tv_usec); 1393 1394 // Check that old_value can be 0, and disable the timer. 1395 memset(&it1, 0, sizeof(it1)); 1396 res = setitimer(ITIMER_VIRTUAL, &it1, 0); 1397 assert(!res); 1398 } 1399 1400 TEST(MemorySanitizer, setitimer_null) { 1401 setitimer(ITIMER_VIRTUAL, 0, 0); 1402 // Not testing the return value, since it the behaviour seems to differ 1403 // between libc implementations and POSIX. 1404 // Should never crash, though. 1405 } 1406 1407 TEST(MemorySanitizer, time) { 1408 time_t t; 1409 EXPECT_POISONED(t); 1410 time_t t2 = time(&t); 1411 assert(t2 != (time_t)-1); 1412 EXPECT_NOT_POISONED(t); 1413 } 1414 1415 TEST(MemorySanitizer, localtime) { 1416 time_t t = 123; 1417 struct tm *time = localtime(&t); 1418 assert(time != 0); 1419 EXPECT_NOT_POISONED(time->tm_sec); 1420 EXPECT_NOT_POISONED(time->tm_hour); 1421 EXPECT_NOT_POISONED(time->tm_year); 1422 EXPECT_NOT_POISONED(time->tm_isdst); 1423 } 1424 1425 TEST(MemorySanitizer, localtime_r) { 1426 time_t t = 123; 1427 struct tm time; 1428 struct tm *res = localtime_r(&t, &time); 1429 assert(res != 0); 1430 EXPECT_NOT_POISONED(time.tm_sec); 1431 EXPECT_NOT_POISONED(time.tm_hour); 1432 EXPECT_NOT_POISONED(time.tm_year); 1433 EXPECT_NOT_POISONED(time.tm_isdst); 1434 } 1435 1436 TEST(MemorySanitizer, mmap) { 1437 const int size = 4096; 1438 void *p1, *p2; 1439 p1 = mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); 1440 __msan_poison(p1, size); 1441 munmap(p1, size); 1442 for (int i = 0; i < 1000; i++) { 1443 p2 = mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); 1444 if (p2 == p1) 1445 break; 1446 else 1447 munmap(p2, size); 1448 } 1449 if (p1 == p2) { 1450 EXPECT_NOT_POISONED(*(char*)p2); 1451 munmap(p2, size); 1452 } 1453 } 1454 1455 // FIXME: enable and add ecvt. 1456 // FIXME: check why msandr does nt handle fcvt. 1457 TEST(MemorySanitizer, fcvt) { 1458 int a, b; 1459 break_optimization(&a); 1460 break_optimization(&b); 1461 EXPECT_POISONED(a); 1462 EXPECT_POISONED(b); 1463 char *str = fcvt(12345.6789, 10, &a, &b); 1464 EXPECT_NOT_POISONED(a); 1465 EXPECT_NOT_POISONED(b); 1466 } 1467 1468 TEST(MemorySanitizer, frexp) { 1469 int x; 1470 x = *GetPoisoned<int>(); 1471 double r = frexp(1.1, &x); 1472 EXPECT_NOT_POISONED(r); 1473 EXPECT_NOT_POISONED(x); 1474 1475 x = *GetPoisoned<int>(); 1476 float rf = frexpf(1.1, &x); 1477 EXPECT_NOT_POISONED(rf); 1478 EXPECT_NOT_POISONED(x); 1479 1480 x = *GetPoisoned<int>(); 1481 double rl = frexpl(1.1, &x); 1482 EXPECT_NOT_POISONED(rl); 1483 EXPECT_NOT_POISONED(x); 1484 } 1485 1486 namespace { 1487 1488 static int cnt; 1489 1490 void SigactionHandler(int signo, siginfo_t* si, void* uc) { 1491 assert(signo == SIGPROF); 1492 assert(si); 1493 EXPECT_NOT_POISONED(si->si_errno); 1494 EXPECT_NOT_POISONED(si->si_pid); 1495 #if __linux__ 1496 # if defined(__x86_64__) 1497 EXPECT_NOT_POISONED(((ucontext_t*)uc)->uc_mcontext.gregs[REG_RIP]); 1498 # elif defined(__i386__) 1499 EXPECT_NOT_POISONED(((ucontext_t*)uc)->uc_mcontext.gregs[REG_EIP]); 1500 # endif 1501 #endif 1502 ++cnt; 1503 } 1504 1505 TEST(MemorySanitizer, sigaction) { 1506 struct sigaction act = {}; 1507 struct sigaction oldact = {}; 1508 struct sigaction origact = {}; 1509 1510 sigaction(SIGPROF, 0, &origact); 1511 1512 act.sa_flags |= SA_SIGINFO; 1513 act.sa_sigaction = &SigactionHandler; 1514 sigaction(SIGPROF, &act, 0); 1515 1516 kill(getpid(), SIGPROF); 1517 1518 act.sa_flags &= ~SA_SIGINFO; 1519 act.sa_handler = SIG_DFL; 1520 sigaction(SIGPROF, &act, 0); 1521 1522 act.sa_flags &= ~SA_SIGINFO; 1523 act.sa_handler = SIG_IGN; 1524 sigaction(SIGPROF, &act, &oldact); 1525 EXPECT_FALSE(oldact.sa_flags & SA_SIGINFO); 1526 EXPECT_EQ(SIG_DFL, oldact.sa_handler); 1527 kill(getpid(), SIGPROF); 1528 1529 act.sa_flags |= SA_SIGINFO; 1530 act.sa_sigaction = &SigactionHandler; 1531 sigaction(SIGPROF, &act, &oldact); 1532 EXPECT_FALSE(oldact.sa_flags & SA_SIGINFO); 1533 EXPECT_EQ(SIG_IGN, oldact.sa_handler); 1534 kill(getpid(), SIGPROF); 1535 1536 act.sa_flags &= ~SA_SIGINFO; 1537 act.sa_handler = SIG_DFL; 1538 sigaction(SIGPROF, &act, &oldact); 1539 EXPECT_TRUE(oldact.sa_flags & SA_SIGINFO); 1540 EXPECT_EQ(&SigactionHandler, oldact.sa_sigaction); 1541 EXPECT_EQ(2, cnt); 1542 1543 sigaction(SIGPROF, &origact, 0); 1544 } 1545 1546 } // namespace 1547 1548 struct StructWithDtor { 1549 ~StructWithDtor(); 1550 }; 1551 1552 NOINLINE StructWithDtor::~StructWithDtor() { 1553 break_optimization(0); 1554 } 1555 1556 TEST(MemorySanitizer, Invoke) { 1557 StructWithDtor s; // Will cause the calls to become invokes. 1558 EXPECT_NOT_POISONED(0); 1559 EXPECT_POISONED(*GetPoisoned<int>()); 1560 EXPECT_NOT_POISONED(0); 1561 EXPECT_POISONED(*GetPoisoned<int>()); 1562 EXPECT_POISONED(ReturnPoisoned<S4>()); 1563 } 1564 1565 TEST(MemorySanitizer, ptrtoint) { 1566 // Test that shadow is propagated through pointer-to-integer conversion. 1567 void* p = (void*)0xABCD; 1568 __msan_poison(((char*)&p) + 1, sizeof(p)); 1569 EXPECT_NOT_POISONED((((uintptr_t)p) & 0xFF) == 0); 1570 1571 void* q = (void*)0xABCD; 1572 __msan_poison(&q, sizeof(q) - 1); 1573 EXPECT_POISONED((((uintptr_t)q) & 0xFF) == 0); 1574 } 1575 1576 static void vaargsfn2(int guard, ...) { 1577 va_list vl; 1578 va_start(vl, guard); 1579 EXPECT_NOT_POISONED(va_arg(vl, int)); 1580 EXPECT_NOT_POISONED(va_arg(vl, int)); 1581 EXPECT_NOT_POISONED(va_arg(vl, int)); 1582 EXPECT_POISONED(va_arg(vl, double)); 1583 va_end(vl); 1584 } 1585 1586 static void vaargsfn(int guard, ...) { 1587 va_list vl; 1588 va_start(vl, guard); 1589 EXPECT_NOT_POISONED(va_arg(vl, int)); 1590 EXPECT_POISONED(va_arg(vl, int)); 1591 // The following call will overwrite __msan_param_tls. 1592 // Checks after it test that arg shadow was somehow saved across the call. 1593 vaargsfn2(1, 2, 3, 4, *GetPoisoned<double>()); 1594 EXPECT_NOT_POISONED(va_arg(vl, int)); 1595 EXPECT_POISONED(va_arg(vl, int)); 1596 va_end(vl); 1597 } 1598 1599 TEST(MemorySanitizer, VAArgTest) { 1600 int* x = GetPoisoned<int>(); 1601 int* y = GetPoisoned<int>(4); 1602 vaargsfn(1, 13, *x, 42, *y); 1603 } 1604 1605 static void vaargsfn_many(int guard, ...) { 1606 va_list vl; 1607 va_start(vl, guard); 1608 EXPECT_NOT_POISONED(va_arg(vl, int)); 1609 EXPECT_POISONED(va_arg(vl, int)); 1610 EXPECT_NOT_POISONED(va_arg(vl, int)); 1611 EXPECT_NOT_POISONED(va_arg(vl, int)); 1612 EXPECT_NOT_POISONED(va_arg(vl, int)); 1613 EXPECT_NOT_POISONED(va_arg(vl, int)); 1614 EXPECT_NOT_POISONED(va_arg(vl, int)); 1615 EXPECT_NOT_POISONED(va_arg(vl, int)); 1616 EXPECT_NOT_POISONED(va_arg(vl, int)); 1617 EXPECT_POISONED(va_arg(vl, int)); 1618 va_end(vl); 1619 } 1620 1621 TEST(MemorySanitizer, VAArgManyTest) { 1622 int* x = GetPoisoned<int>(); 1623 int* y = GetPoisoned<int>(4); 1624 vaargsfn_many(1, 2, *x, 3, 4, 5, 6, 7, 8, 9, *y); 1625 } 1626 1627 static void vaargsfn_pass2(va_list vl) { 1628 EXPECT_NOT_POISONED(va_arg(vl, int)); 1629 EXPECT_NOT_POISONED(va_arg(vl, int)); 1630 EXPECT_POISONED(va_arg(vl, int)); 1631 } 1632 1633 static void vaargsfn_pass(int guard, ...) { 1634 va_list vl; 1635 va_start(vl, guard); 1636 EXPECT_POISONED(va_arg(vl, int)); 1637 vaargsfn_pass2(vl); 1638 va_end(vl); 1639 } 1640 1641 TEST(MemorySanitizer, VAArgPass) { 1642 int* x = GetPoisoned<int>(); 1643 int* y = GetPoisoned<int>(4); 1644 vaargsfn_pass(1, *x, 2, 3, *y); 1645 } 1646 1647 static void vaargsfn_copy2(va_list vl) { 1648 EXPECT_NOT_POISONED(va_arg(vl, int)); 1649 EXPECT_POISONED(va_arg(vl, int)); 1650 } 1651 1652 static void vaargsfn_copy(int guard, ...) { 1653 va_list vl; 1654 va_start(vl, guard); 1655 EXPECT_NOT_POISONED(va_arg(vl, int)); 1656 EXPECT_POISONED(va_arg(vl, int)); 1657 va_list vl2; 1658 va_copy(vl2, vl); 1659 vaargsfn_copy2(vl2); 1660 EXPECT_NOT_POISONED(va_arg(vl, int)); 1661 EXPECT_POISONED(va_arg(vl, int)); 1662 va_end(vl); 1663 } 1664 1665 TEST(MemorySanitizer, VAArgCopy) { 1666 int* x = GetPoisoned<int>(); 1667 int* y = GetPoisoned<int>(4); 1668 vaargsfn_copy(1, 2, *x, 3, *y); 1669 } 1670 1671 static void vaargsfn_ptr(int guard, ...) { 1672 va_list vl; 1673 va_start(vl, guard); 1674 EXPECT_NOT_POISONED(va_arg(vl, int*)); 1675 EXPECT_POISONED(va_arg(vl, int*)); 1676 EXPECT_NOT_POISONED(va_arg(vl, int*)); 1677 EXPECT_POISONED(va_arg(vl, double*)); 1678 va_end(vl); 1679 } 1680 1681 TEST(MemorySanitizer, VAArgPtr) { 1682 int** x = GetPoisoned<int*>(); 1683 double** y = GetPoisoned<double*>(8); 1684 int z; 1685 vaargsfn_ptr(1, &z, *x, &z, *y); 1686 } 1687 1688 static void vaargsfn_overflow(int guard, ...) { 1689 va_list vl; 1690 va_start(vl, guard); 1691 EXPECT_NOT_POISONED(va_arg(vl, int)); 1692 EXPECT_NOT_POISONED(va_arg(vl, int)); 1693 EXPECT_POISONED(va_arg(vl, int)); 1694 EXPECT_NOT_POISONED(va_arg(vl, int)); 1695 EXPECT_NOT_POISONED(va_arg(vl, int)); 1696 EXPECT_NOT_POISONED(va_arg(vl, int)); 1697 1698 EXPECT_NOT_POISONED(va_arg(vl, double)); 1699 EXPECT_NOT_POISONED(va_arg(vl, double)); 1700 EXPECT_NOT_POISONED(va_arg(vl, double)); 1701 EXPECT_POISONED(va_arg(vl, double)); 1702 EXPECT_NOT_POISONED(va_arg(vl, double)); 1703 EXPECT_POISONED(va_arg(vl, int*)); 1704 EXPECT_NOT_POISONED(va_arg(vl, double)); 1705 EXPECT_NOT_POISONED(va_arg(vl, double)); 1706 1707 EXPECT_POISONED(va_arg(vl, int)); 1708 EXPECT_POISONED(va_arg(vl, double)); 1709 EXPECT_POISONED(va_arg(vl, int*)); 1710 1711 EXPECT_NOT_POISONED(va_arg(vl, int)); 1712 EXPECT_NOT_POISONED(va_arg(vl, double)); 1713 EXPECT_NOT_POISONED(va_arg(vl, int*)); 1714 1715 EXPECT_POISONED(va_arg(vl, int)); 1716 EXPECT_POISONED(va_arg(vl, double)); 1717 EXPECT_POISONED(va_arg(vl, int*)); 1718 1719 va_end(vl); 1720 } 1721 1722 TEST(MemorySanitizer, VAArgOverflow) { 1723 int* x = GetPoisoned<int>(); 1724 double* y = GetPoisoned<double>(8); 1725 int** p = GetPoisoned<int*>(16); 1726 int z; 1727 vaargsfn_overflow(1, 1728 1, 2, *x, 4, 5, 6, 1729 1.1, 2.2, 3.3, *y, 5.5, *p, 7.7, 8.8, 1730 // the following args will overflow for sure 1731 *x, *y, *p, 1732 7, 9.9, &z, 1733 *x, *y, *p); 1734 } 1735 1736 static void vaargsfn_tlsoverwrite2(int guard, ...) { 1737 va_list vl; 1738 va_start(vl, guard); 1739 EXPECT_NOT_POISONED(va_arg(vl, int)); 1740 va_end(vl); 1741 } 1742 1743 static void vaargsfn_tlsoverwrite(int guard, ...) { 1744 // This call will overwrite TLS contents unless it's backed up somewhere. 1745 vaargsfn_tlsoverwrite2(2, 42); 1746 va_list vl; 1747 va_start(vl, guard); 1748 EXPECT_POISONED(va_arg(vl, int)); 1749 va_end(vl); 1750 } 1751 1752 TEST(MemorySanitizer, VAArgTLSOverwrite) { 1753 int* x = GetPoisoned<int>(); 1754 vaargsfn_tlsoverwrite(1, *x); 1755 } 1756 1757 struct StructByVal { 1758 int a, b, c, d, e, f; 1759 }; 1760 1761 NOINLINE void StructByValTestFunc(struct StructByVal s) { 1762 EXPECT_NOT_POISONED(s.a); 1763 EXPECT_POISONED(s.b); 1764 EXPECT_NOT_POISONED(s.c); 1765 EXPECT_POISONED(s.d); 1766 EXPECT_NOT_POISONED(s.e); 1767 EXPECT_POISONED(s.f); 1768 } 1769 1770 NOINLINE void StructByValTestFunc1(struct StructByVal s) { 1771 StructByValTestFunc(s); 1772 } 1773 1774 NOINLINE void StructByValTestFunc2(int z, struct StructByVal s) { 1775 StructByValTestFunc(s); 1776 } 1777 1778 TEST(MemorySanitizer, StructByVal) { 1779 // Large aggregates are passed as "byval" pointer argument in LLVM. 1780 struct StructByVal s; 1781 s.a = 1; 1782 s.b = *GetPoisoned<int>(); 1783 s.c = 2; 1784 s.d = *GetPoisoned<int>(); 1785 s.e = 3; 1786 s.f = *GetPoisoned<int>(); 1787 StructByValTestFunc(s); 1788 StructByValTestFunc1(s); 1789 StructByValTestFunc2(0, s); 1790 } 1791 1792 1793 #if MSAN_HAS_M128 1794 NOINLINE __m128i m128Eq(__m128i *a, __m128i *b) { return _mm_cmpeq_epi16(*a, *b); } 1795 NOINLINE __m128i m128Lt(__m128i *a, __m128i *b) { return _mm_cmplt_epi16(*a, *b); } 1796 TEST(MemorySanitizer, m128) { 1797 __m128i a = _mm_set1_epi16(0x1234); 1798 __m128i b = _mm_set1_epi16(0x7890); 1799 EXPECT_NOT_POISONED(m128Eq(&a, &b)); 1800 EXPECT_NOT_POISONED(m128Lt(&a, &b)); 1801 } 1802 // FIXME: add more tests for __m128i. 1803 #endif // MSAN_HAS_M128 1804 1805 // We should not complain when copying this poisoned hole. 1806 struct StructWithHole { 1807 U4 a; 1808 // 4-byte hole. 1809 U8 b; 1810 }; 1811 1812 NOINLINE StructWithHole ReturnStructWithHole() { 1813 StructWithHole res; 1814 __msan_poison(&res, sizeof(res)); 1815 res.a = 1; 1816 res.b = 2; 1817 return res; 1818 } 1819 1820 TEST(MemorySanitizer, StructWithHole) { 1821 StructWithHole a = ReturnStructWithHole(); 1822 break_optimization(&a); 1823 } 1824 1825 template <class T> 1826 NOINLINE T ReturnStruct() { 1827 T res; 1828 __msan_poison(&res, sizeof(res)); 1829 res.a = 1; 1830 return res; 1831 } 1832 1833 template <class T> 1834 NOINLINE void TestReturnStruct() { 1835 T s1 = ReturnStruct<T>(); 1836 EXPECT_NOT_POISONED(s1.a); 1837 EXPECT_POISONED(s1.b); 1838 } 1839 1840 struct SSS1 { 1841 int a, b, c; 1842 }; 1843 struct SSS2 { 1844 int b, a, c; 1845 }; 1846 struct SSS3 { 1847 int b, c, a; 1848 }; 1849 struct SSS4 { 1850 int c, b, a; 1851 }; 1852 1853 struct SSS5 { 1854 int a; 1855 float b; 1856 }; 1857 struct SSS6 { 1858 int a; 1859 double b; 1860 }; 1861 struct SSS7 { 1862 S8 b; 1863 int a; 1864 }; 1865 struct SSS8 { 1866 S2 b; 1867 S8 a; 1868 }; 1869 1870 TEST(MemorySanitizer, IntStruct3) { 1871 TestReturnStruct<SSS1>(); 1872 TestReturnStruct<SSS2>(); 1873 TestReturnStruct<SSS3>(); 1874 TestReturnStruct<SSS4>(); 1875 TestReturnStruct<SSS5>(); 1876 TestReturnStruct<SSS6>(); 1877 TestReturnStruct<SSS7>(); 1878 TestReturnStruct<SSS8>(); 1879 } 1880 1881 struct LongStruct { 1882 U1 a1, b1; 1883 U2 a2, b2; 1884 U4 a4, b4; 1885 U8 a8, b8; 1886 }; 1887 1888 NOINLINE LongStruct ReturnLongStruct1() { 1889 LongStruct res; 1890 __msan_poison(&res, sizeof(res)); 1891 res.a1 = res.a2 = res.a4 = res.a8 = 111; 1892 // leaves b1, .., b8 poisoned. 1893 return res; 1894 } 1895 1896 NOINLINE LongStruct ReturnLongStruct2() { 1897 LongStruct res; 1898 __msan_poison(&res, sizeof(res)); 1899 res.b1 = res.b2 = res.b4 = res.b8 = 111; 1900 // leaves a1, .., a8 poisoned. 1901 return res; 1902 } 1903 1904 TEST(MemorySanitizer, LongStruct) { 1905 LongStruct s1 = ReturnLongStruct1(); 1906 __msan_print_shadow(&s1, sizeof(s1)); 1907 EXPECT_NOT_POISONED(s1.a1); 1908 EXPECT_NOT_POISONED(s1.a2); 1909 EXPECT_NOT_POISONED(s1.a4); 1910 EXPECT_NOT_POISONED(s1.a8); 1911 1912 EXPECT_POISONED(s1.b1); 1913 EXPECT_POISONED(s1.b2); 1914 EXPECT_POISONED(s1.b4); 1915 EXPECT_POISONED(s1.b8); 1916 1917 LongStruct s2 = ReturnLongStruct2(); 1918 __msan_print_shadow(&s2, sizeof(s2)); 1919 EXPECT_NOT_POISONED(s2.b1); 1920 EXPECT_NOT_POISONED(s2.b2); 1921 EXPECT_NOT_POISONED(s2.b4); 1922 EXPECT_NOT_POISONED(s2.b8); 1923 1924 EXPECT_POISONED(s2.a1); 1925 EXPECT_POISONED(s2.a2); 1926 EXPECT_POISONED(s2.a4); 1927 EXPECT_POISONED(s2.a8); 1928 } 1929 1930 TEST(MemorySanitizer, getrlimit) { 1931 struct rlimit limit; 1932 __msan_poison(&limit, sizeof(limit)); 1933 int result = getrlimit(RLIMIT_DATA, &limit); 1934 assert(result == 0); 1935 EXPECT_NOT_POISONED(limit.rlim_cur); 1936 EXPECT_NOT_POISONED(limit.rlim_max); 1937 } 1938 1939 TEST(MemorySanitizer, getrusage) { 1940 struct rusage usage; 1941 __msan_poison(&usage, sizeof(usage)); 1942 int result = getrusage(RUSAGE_SELF, &usage); 1943 assert(result == 0); 1944 EXPECT_NOT_POISONED(usage.ru_utime.tv_sec); 1945 EXPECT_NOT_POISONED(usage.ru_utime.tv_usec); 1946 EXPECT_NOT_POISONED(usage.ru_stime.tv_sec); 1947 EXPECT_NOT_POISONED(usage.ru_stime.tv_usec); 1948 EXPECT_NOT_POISONED(usage.ru_maxrss); 1949 EXPECT_NOT_POISONED(usage.ru_minflt); 1950 EXPECT_NOT_POISONED(usage.ru_majflt); 1951 EXPECT_NOT_POISONED(usage.ru_inblock); 1952 EXPECT_NOT_POISONED(usage.ru_oublock); 1953 EXPECT_NOT_POISONED(usage.ru_nvcsw); 1954 EXPECT_NOT_POISONED(usage.ru_nivcsw); 1955 } 1956 1957 #ifdef __GLIBC__ 1958 extern char *program_invocation_name; 1959 #else // __GLIBC__ 1960 # error "TODO: port this" 1961 #endif 1962 1963 static void dladdr_testfn() {} 1964 1965 TEST(MemorySanitizer, dladdr) { 1966 Dl_info info; 1967 __msan_poison(&info, sizeof(info)); 1968 int result = dladdr((const void*)dladdr_testfn, &info); 1969 assert(result != 0); 1970 EXPECT_NOT_POISONED((unsigned long)info.dli_fname); 1971 if (info.dli_fname) 1972 EXPECT_NOT_POISONED(strlen(info.dli_fname)); 1973 EXPECT_NOT_POISONED((unsigned long)info.dli_fbase); 1974 EXPECT_NOT_POISONED((unsigned long)info.dli_sname); 1975 if (info.dli_sname) 1976 EXPECT_NOT_POISONED(strlen(info.dli_sname)); 1977 EXPECT_NOT_POISONED((unsigned long)info.dli_saddr); 1978 } 1979 1980 #ifndef MSAN_TEST_DISABLE_DLOPEN 1981 1982 static int dl_phdr_callback(struct dl_phdr_info *info, size_t size, void *data) { 1983 (*(int *)data)++; 1984 EXPECT_NOT_POISONED(info->dlpi_addr); 1985 EXPECT_NOT_POISONED(strlen(info->dlpi_name)); 1986 EXPECT_NOT_POISONED(info->dlpi_phnum); 1987 for (int i = 0; i < info->dlpi_phnum; ++i) 1988 EXPECT_NOT_POISONED(info->dlpi_phdr[i]); 1989 return 0; 1990 } 1991 1992 // Compute the path to our loadable DSO. We assume it's in the same 1993 // directory. Only use string routines that we intercept so far to do this. 1994 static int PathToLoadable(char *buf, size_t sz) { 1995 const char *basename = "libmsan_loadable.x86_64.so"; 1996 char *argv0 = program_invocation_name; 1997 char *last_slash = strrchr(argv0, '/'); 1998 assert(last_slash); 1999 int res = 2000 snprintf(buf, sz, "%.*s/%s", int(last_slash - argv0), argv0, basename); 2001 return res < sz ? 0 : res; 2002 } 2003 2004 TEST(MemorySanitizer, dl_iterate_phdr) { 2005 char path[4096]; 2006 int res = PathToLoadable(path, sizeof(path)); 2007 assert(!res); 2008 2009 // Having at least one dlopen'ed library in the process makes this more 2010 // entertaining. 2011 void *lib = dlopen(path, RTLD_LAZY); 2012 ASSERT_NE((void*)0, lib); 2013 2014 int count = 0; 2015 int result = dl_iterate_phdr(dl_phdr_callback, &count); 2016 assert(count > 0); 2017 2018 dlclose(lib); 2019 } 2020 2021 2022 TEST(MemorySanitizer, dlopen) { 2023 char path[4096]; 2024 int res = PathToLoadable(path, sizeof(path)); 2025 assert(!res); 2026 2027 // We need to clear shadow for globals when doing dlopen. In order to test 2028 // this, we have to poison the shadow for the DSO before we load it. In 2029 // general this is difficult, but the loader tends to reload things in the 2030 // same place, so we open, close, and then reopen. The global should always 2031 // start out clean after dlopen. 2032 for (int i = 0; i < 2; i++) { 2033 void *lib = dlopen(path, RTLD_LAZY); 2034 if (lib == NULL) { 2035 printf("dlerror: %s\n", dlerror()); 2036 assert(lib != NULL); 2037 } 2038 void **(*get_dso_global)() = (void **(*)())dlsym(lib, "get_dso_global"); 2039 assert(get_dso_global); 2040 void **dso_global = get_dso_global(); 2041 EXPECT_NOT_POISONED(*dso_global); 2042 __msan_poison(dso_global, sizeof(*dso_global)); 2043 EXPECT_POISONED(*dso_global); 2044 dlclose(lib); 2045 } 2046 } 2047 2048 // Regression test for a crash in dlopen() interceptor. 2049 TEST(MemorySanitizer, dlopenFailed) { 2050 const char *path = "/libmsan_loadable_does_not_exist.x86_64.so"; 2051 void *lib = dlopen(path, RTLD_LAZY); 2052 ASSERT_EQ(0, lib); 2053 } 2054 2055 #endif // MSAN_TEST_DISABLE_DLOPEN 2056 2057 TEST(MemorySanitizer, sched_getaffinity) { 2058 cpu_set_t mask; 2059 int res = sched_getaffinity(getpid(), sizeof(mask), &mask); 2060 ASSERT_EQ(0, res); 2061 EXPECT_NOT_POISONED(mask); 2062 } 2063 2064 TEST(MemorySanitizer, scanf) { 2065 const char *input = "42 hello"; 2066 int* d = new int; 2067 char* s = new char[7]; 2068 int res = sscanf(input, "%d %5s", d, s); 2069 printf("res %d\n", res); 2070 assert(res == 2); 2071 EXPECT_NOT_POISONED(*d); 2072 EXPECT_NOT_POISONED(s[0]); 2073 EXPECT_NOT_POISONED(s[1]); 2074 EXPECT_NOT_POISONED(s[2]); 2075 EXPECT_NOT_POISONED(s[3]); 2076 EXPECT_NOT_POISONED(s[4]); 2077 EXPECT_NOT_POISONED(s[5]); 2078 EXPECT_POISONED(s[6]); 2079 delete s; 2080 delete d; 2081 } 2082 2083 static void *SimpleThread_threadfn(void* data) { 2084 return new int; 2085 } 2086 2087 TEST(MemorySanitizer, SimpleThread) { 2088 pthread_t t; 2089 void *p; 2090 int res = pthread_create(&t, NULL, SimpleThread_threadfn, NULL); 2091 assert(!res); 2092 EXPECT_NOT_POISONED(t); 2093 res = pthread_join(t, &p); 2094 assert(!res); 2095 EXPECT_NOT_POISONED(p); 2096 delete (int*)p; 2097 } 2098 2099 static void *SmallStackThread_threadfn(void* data) { 2100 return 0; 2101 } 2102 2103 TEST(MemorySanitizer, SmallStackThread) { 2104 pthread_attr_t attr; 2105 pthread_t t; 2106 void *p; 2107 int res; 2108 res = pthread_attr_init(&attr); 2109 ASSERT_EQ(0, res); 2110 res = pthread_attr_setstacksize(&attr, 64 * 1024); 2111 ASSERT_EQ(0, res); 2112 res = pthread_create(&t, &attr, SmallStackThread_threadfn, NULL); 2113 ASSERT_EQ(0, res); 2114 res = pthread_join(t, &p); 2115 ASSERT_EQ(0, res); 2116 res = pthread_attr_destroy(&attr); 2117 ASSERT_EQ(0, res); 2118 } 2119 2120 TEST(MemorySanitizer, PreAllocatedStackThread) { 2121 pthread_attr_t attr; 2122 pthread_t t; 2123 int res; 2124 res = pthread_attr_init(&attr); 2125 ASSERT_EQ(0, res); 2126 void *stack; 2127 const size_t kStackSize = 64 * 1024; 2128 res = posix_memalign(&stack, 4096, kStackSize); 2129 ASSERT_EQ(0, res); 2130 res = pthread_attr_setstack(&attr, stack, kStackSize); 2131 ASSERT_EQ(0, res); 2132 // A small self-allocated stack can not be extended by the tool. 2133 // In this case pthread_create is expected to fail. 2134 res = pthread_create(&t, &attr, SmallStackThread_threadfn, NULL); 2135 EXPECT_NE(0, res); 2136 res = pthread_attr_destroy(&attr); 2137 ASSERT_EQ(0, res); 2138 } 2139 2140 TEST(MemorySanitizer, pthread_getschedparam) { 2141 int policy; 2142 struct sched_param param; 2143 int res = pthread_getschedparam(pthread_self(), &policy, ¶m); 2144 ASSERT_EQ(0, res); 2145 EXPECT_NOT_POISONED(policy); 2146 EXPECT_NOT_POISONED(param.sched_priority); 2147 } 2148 2149 TEST(MemorySanitizer, pthread_key_create) { 2150 pthread_key_t key; 2151 int res = pthread_key_create(&key, NULL); 2152 assert(!res); 2153 EXPECT_NOT_POISONED(key); 2154 res = pthread_key_delete(key); 2155 assert(!res); 2156 } 2157 2158 TEST(MemorySanitizer, posix_memalign) { 2159 void *p; 2160 EXPECT_POISONED(p); 2161 int res = posix_memalign(&p, 4096, 13); 2162 ASSERT_EQ(0, res); 2163 EXPECT_NOT_POISONED(p); 2164 free(p); 2165 } 2166 2167 TEST(MemorySanitizer, inet_pton) { 2168 const char *s = "1:0:0:0:0:0:0:8"; 2169 unsigned char buf[sizeof(struct in6_addr)]; 2170 int res = inet_pton(AF_INET6, s, buf); 2171 ASSERT_EQ(1, res); 2172 EXPECT_NOT_POISONED(buf[0]); 2173 EXPECT_NOT_POISONED(buf[sizeof(struct in6_addr) - 1]); 2174 2175 char s_out[INET6_ADDRSTRLEN]; 2176 EXPECT_POISONED(s_out[3]); 2177 const char *q = inet_ntop(AF_INET6, buf, s_out, INET6_ADDRSTRLEN); 2178 ASSERT_NE((void*)0, q); 2179 EXPECT_NOT_POISONED(s_out[3]); 2180 } 2181 2182 TEST(MemorySanitizer, inet_aton) { 2183 const char *s = "127.0.0.1"; 2184 struct in_addr in[2]; 2185 int res = inet_aton(s, in); 2186 ASSERT_NE(0, res); 2187 EXPECT_NOT_POISONED(in[0]); 2188 EXPECT_POISONED(*(char *)(in + 1)); 2189 } 2190 2191 TEST(MemorySanitizer, uname) { 2192 struct utsname u; 2193 int res = uname(&u); 2194 assert(!res); 2195 EXPECT_NOT_POISONED(strlen(u.sysname)); 2196 EXPECT_NOT_POISONED(strlen(u.nodename)); 2197 EXPECT_NOT_POISONED(strlen(u.release)); 2198 EXPECT_NOT_POISONED(strlen(u.version)); 2199 EXPECT_NOT_POISONED(strlen(u.machine)); 2200 } 2201 2202 TEST(MemorySanitizer, gethostname) { 2203 char buf[100]; 2204 int res = gethostname(buf, 100); 2205 assert(!res); 2206 EXPECT_NOT_POISONED(strlen(buf)); 2207 } 2208 2209 TEST(MemorySanitizer, sysinfo) { 2210 struct sysinfo info; 2211 int res = sysinfo(&info); 2212 assert(!res); 2213 EXPECT_NOT_POISONED(info); 2214 } 2215 2216 TEST(MemorySanitizer, getpwuid) { 2217 struct passwd *p = getpwuid(0); // root 2218 assert(p); 2219 EXPECT_NOT_POISONED(p->pw_name); 2220 assert(p->pw_name); 2221 EXPECT_NOT_POISONED(p->pw_name[0]); 2222 EXPECT_NOT_POISONED(p->pw_uid); 2223 assert(p->pw_uid == 0); 2224 } 2225 2226 TEST(MemorySanitizer, getpwnam_r) { 2227 struct passwd pwd; 2228 struct passwd *pwdres; 2229 char buf[10000]; 2230 int res = getpwnam_r("root", &pwd, buf, sizeof(buf), &pwdres); 2231 assert(!res); 2232 EXPECT_NOT_POISONED(pwd.pw_name); 2233 assert(pwd.pw_name); 2234 EXPECT_NOT_POISONED(pwd.pw_name[0]); 2235 EXPECT_NOT_POISONED(pwd.pw_uid); 2236 assert(pwd.pw_uid == 0); 2237 } 2238 2239 TEST(MemorySanitizer, getpwnam_r_positive) { 2240 struct passwd pwd; 2241 struct passwd *pwdres; 2242 char s[5]; 2243 strncpy(s, "abcd", 5); 2244 __msan_poison(s, 5); 2245 char buf[10000]; 2246 int res; 2247 EXPECT_UMR(res = getpwnam_r(s, &pwd, buf, sizeof(buf), &pwdres)); 2248 } 2249 2250 TEST(MemorySanitizer, getgrnam_r) { 2251 struct group grp; 2252 struct group *grpres; 2253 char buf[10000]; 2254 int res = getgrnam_r("root", &grp, buf, sizeof(buf), &grpres); 2255 assert(!res); 2256 EXPECT_NOT_POISONED(grp.gr_name); 2257 assert(grp.gr_name); 2258 EXPECT_NOT_POISONED(grp.gr_name[0]); 2259 EXPECT_NOT_POISONED(grp.gr_gid); 2260 } 2261 2262 template<class T> 2263 static bool applySlt(T value, T shadow) { 2264 __msan_partial_poison(&value, &shadow, sizeof(T)); 2265 volatile bool zzz = true; 2266 // This "|| zzz" trick somehow makes LLVM emit "icmp slt" instead of 2267 // a shift-and-trunc to get at the highest bit. 2268 volatile bool v = value < 0 || zzz; 2269 return v; 2270 } 2271 2272 TEST(MemorySanitizer, SignedCompareWithZero) { 2273 EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0xF)); 2274 EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0xFF)); 2275 EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0xFFFFFF)); 2276 EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0x7FFFFFF)); 2277 EXPECT_UMR(applySlt<S4>(0xF, 0x80FFFFFF)); 2278 EXPECT_UMR(applySlt<S4>(0xF, 0xFFFFFFFF)); 2279 } 2280 2281 template <class T, class S> 2282 static T poisoned(T Va, S Sa) { 2283 char SIZE_CHECK1[(ssize_t)sizeof(T) - (ssize_t)sizeof(S)]; 2284 char SIZE_CHECK2[(ssize_t)sizeof(S) - (ssize_t)sizeof(T)]; 2285 T a; 2286 a = Va; 2287 __msan_partial_poison(&a, &Sa, sizeof(T)); 2288 return a; 2289 } 2290 2291 TEST(MemorySanitizer, ICmpRelational) { 2292 EXPECT_NOT_POISONED(poisoned(0, 0) < poisoned(0, 0)); 2293 EXPECT_NOT_POISONED(poisoned(0U, 0) < poisoned(0U, 0)); 2294 EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) < poisoned(0LL, 0LLU)); 2295 EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) < poisoned(0LLU, 0LLU)); 2296 EXPECT_POISONED(poisoned(0xFF, 0xFF) < poisoned(0xFF, 0xFF)); 2297 EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) < 2298 poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); 2299 EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) < 2300 poisoned(-1, 0xFFFFFFFFU)); 2301 2302 EXPECT_NOT_POISONED(poisoned(0, 0) <= poisoned(0, 0)); 2303 EXPECT_NOT_POISONED(poisoned(0U, 0) <= poisoned(0U, 0)); 2304 EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) <= poisoned(0LL, 0LLU)); 2305 EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) <= poisoned(0LLU, 0LLU)); 2306 EXPECT_POISONED(poisoned(0xFF, 0xFF) <= poisoned(0xFF, 0xFF)); 2307 EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) <= 2308 poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); 2309 EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) <= 2310 poisoned(-1, 0xFFFFFFFFU)); 2311 2312 EXPECT_NOT_POISONED(poisoned(0, 0) > poisoned(0, 0)); 2313 EXPECT_NOT_POISONED(poisoned(0U, 0) > poisoned(0U, 0)); 2314 EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) > poisoned(0LL, 0LLU)); 2315 EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) > poisoned(0LLU, 0LLU)); 2316 EXPECT_POISONED(poisoned(0xFF, 0xFF) > poisoned(0xFF, 0xFF)); 2317 EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) > 2318 poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); 2319 EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) > 2320 poisoned(-1, 0xFFFFFFFFU)); 2321 2322 EXPECT_NOT_POISONED(poisoned(0, 0) >= poisoned(0, 0)); 2323 EXPECT_NOT_POISONED(poisoned(0U, 0) >= poisoned(0U, 0)); 2324 EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) >= poisoned(0LL, 0LLU)); 2325 EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) >= poisoned(0LLU, 0LLU)); 2326 EXPECT_POISONED(poisoned(0xFF, 0xFF) >= poisoned(0xFF, 0xFF)); 2327 EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) >= 2328 poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); 2329 EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) >= 2330 poisoned(-1, 0xFFFFFFFFU)); 2331 2332 EXPECT_POISONED(poisoned(6, 0xF) > poisoned(7, 0)); 2333 EXPECT_POISONED(poisoned(0xF, 0xF) > poisoned(7, 0)); 2334 2335 EXPECT_NOT_POISONED(poisoned(-1, 0x80000000U) >= poisoned(-1, 0U)); 2336 } 2337 2338 #if MSAN_HAS_M128 2339 TEST(MemorySanitizer, ICmpVectorRelational) { 2340 EXPECT_NOT_POISONED( 2341 _mm_cmplt_epi16(poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0)), 2342 poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0)))); 2343 EXPECT_NOT_POISONED( 2344 _mm_cmplt_epi16(poisoned(_mm_set1_epi32(0), _mm_set1_epi32(0)), 2345 poisoned(_mm_set1_epi32(0), _mm_set1_epi32(0)))); 2346 EXPECT_POISONED( 2347 _mm_cmplt_epi16(poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0xFFFF)), 2348 poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0xFFFF)))); 2349 EXPECT_POISONED(_mm_cmpgt_epi16(poisoned(_mm_set1_epi16(6), _mm_set1_epi16(0xF)), 2350 poisoned(_mm_set1_epi16(7), _mm_set1_epi16(0)))); 2351 } 2352 #endif 2353 2354 // Volatile bitfield store is implemented as load-mask-store 2355 // Test that we don't warn on the store of (uninitialized) padding. 2356 struct VolatileBitfieldStruct { 2357 volatile unsigned x : 1; 2358 unsigned y : 1; 2359 }; 2360 2361 TEST(MemorySanitizer, VolatileBitfield) { 2362 VolatileBitfieldStruct *S = new VolatileBitfieldStruct; 2363 S->x = 1; 2364 EXPECT_NOT_POISONED((unsigned)S->x); 2365 EXPECT_POISONED((unsigned)S->y); 2366 } 2367 2368 TEST(MemorySanitizer, UnalignedLoad) { 2369 char x[32]; 2370 memset(x + 8, 0, 16); 2371 EXPECT_POISONED(__sanitizer_unaligned_load16(x+6)); 2372 EXPECT_POISONED(__sanitizer_unaligned_load16(x+7)); 2373 EXPECT_NOT_POISONED(__sanitizer_unaligned_load16(x+8)); 2374 EXPECT_NOT_POISONED(__sanitizer_unaligned_load16(x+9)); 2375 EXPECT_NOT_POISONED(__sanitizer_unaligned_load16(x+22)); 2376 EXPECT_POISONED(__sanitizer_unaligned_load16(x+23)); 2377 EXPECT_POISONED(__sanitizer_unaligned_load16(x+24)); 2378 2379 EXPECT_POISONED(__sanitizer_unaligned_load32(x+4)); 2380 EXPECT_POISONED(__sanitizer_unaligned_load32(x+7)); 2381 EXPECT_NOT_POISONED(__sanitizer_unaligned_load32(x+8)); 2382 EXPECT_NOT_POISONED(__sanitizer_unaligned_load32(x+9)); 2383 EXPECT_NOT_POISONED(__sanitizer_unaligned_load32(x+20)); 2384 EXPECT_POISONED(__sanitizer_unaligned_load32(x+21)); 2385 EXPECT_POISONED(__sanitizer_unaligned_load32(x+24)); 2386 2387 EXPECT_POISONED(__sanitizer_unaligned_load64(x)); 2388 EXPECT_POISONED(__sanitizer_unaligned_load64(x+1)); 2389 EXPECT_POISONED(__sanitizer_unaligned_load64(x+7)); 2390 EXPECT_NOT_POISONED(__sanitizer_unaligned_load64(x+8)); 2391 EXPECT_NOT_POISONED(__sanitizer_unaligned_load64(x+9)); 2392 EXPECT_NOT_POISONED(__sanitizer_unaligned_load64(x+16)); 2393 EXPECT_POISONED(__sanitizer_unaligned_load64(x+17)); 2394 EXPECT_POISONED(__sanitizer_unaligned_load64(x+21)); 2395 EXPECT_POISONED(__sanitizer_unaligned_load64(x+24)); 2396 } 2397 2398 TEST(MemorySanitizer, UnalignedStore16) { 2399 char x[5]; 2400 U2 y = 0; 2401 __msan_poison(&y, 1); 2402 __sanitizer_unaligned_store16(x + 1, y); 2403 EXPECT_POISONED(x[0]); 2404 EXPECT_POISONED(x[1]); 2405 EXPECT_NOT_POISONED(x[2]); 2406 EXPECT_POISONED(x[3]); 2407 EXPECT_POISONED(x[4]); 2408 } 2409 2410 TEST(MemorySanitizer, UnalignedStore32) { 2411 char x[8]; 2412 U4 y4 = 0; 2413 __msan_poison(&y4, 2); 2414 __sanitizer_unaligned_store32(x+3, y4); 2415 EXPECT_POISONED(x[0]); 2416 EXPECT_POISONED(x[1]); 2417 EXPECT_POISONED(x[2]); 2418 EXPECT_POISONED(x[3]); 2419 EXPECT_POISONED(x[4]); 2420 EXPECT_NOT_POISONED(x[5]); 2421 EXPECT_NOT_POISONED(x[6]); 2422 EXPECT_POISONED(x[7]); 2423 } 2424 2425 TEST(MemorySanitizer, UnalignedStore64) { 2426 char x[16]; 2427 U8 y = 0; 2428 __msan_poison(&y, 3); 2429 __msan_poison(((char *)&y) + sizeof(y) - 2, 1); 2430 __sanitizer_unaligned_store64(x+3, y); 2431 EXPECT_POISONED(x[0]); 2432 EXPECT_POISONED(x[1]); 2433 EXPECT_POISONED(x[2]); 2434 EXPECT_POISONED(x[3]); 2435 EXPECT_POISONED(x[4]); 2436 EXPECT_POISONED(x[5]); 2437 EXPECT_NOT_POISONED(x[6]); 2438 EXPECT_NOT_POISONED(x[7]); 2439 EXPECT_NOT_POISONED(x[8]); 2440 EXPECT_POISONED(x[9]); 2441 EXPECT_NOT_POISONED(x[10]); 2442 EXPECT_POISONED(x[11]); 2443 } 2444 2445 TEST(MemorySanitizerDr, StoreInDSOTest) { 2446 if (!__msan_has_dynamic_component()) return; 2447 char* s = new char[10]; 2448 dso_memfill(s, 9); 2449 EXPECT_NOT_POISONED(s[5]); 2450 EXPECT_POISONED(s[9]); 2451 } 2452 2453 int return_poisoned_int() { 2454 return ReturnPoisoned<U8>(); 2455 } 2456 2457 TEST(MemorySanitizerDr, ReturnFromDSOTest) { 2458 if (!__msan_has_dynamic_component()) return; 2459 EXPECT_NOT_POISONED(dso_callfn(return_poisoned_int)); 2460 } 2461 2462 NOINLINE int TrashParamTLS(long long x, long long y, long long z) { //NOLINT 2463 EXPECT_POISONED(x); 2464 EXPECT_POISONED(y); 2465 EXPECT_POISONED(z); 2466 return 0; 2467 } 2468 2469 static int CheckParamTLS(long long x, long long y, long long z) { //NOLINT 2470 EXPECT_NOT_POISONED(x); 2471 EXPECT_NOT_POISONED(y); 2472 EXPECT_NOT_POISONED(z); 2473 return 0; 2474 } 2475 2476 TEST(MemorySanitizerDr, CallFromDSOTest) { 2477 if (!__msan_has_dynamic_component()) return; 2478 S8* x = GetPoisoned<S8>(); 2479 S8* y = GetPoisoned<S8>(); 2480 S8* z = GetPoisoned<S8>(); 2481 EXPECT_NOT_POISONED(TrashParamTLS(*x, *y, *z)); 2482 EXPECT_NOT_POISONED(dso_callfn1(CheckParamTLS)); 2483 } 2484 2485 static void StackStoreInDSOFn(int* x, int* y) { 2486 EXPECT_NOT_POISONED(*x); 2487 EXPECT_NOT_POISONED(*y); 2488 } 2489 2490 TEST(MemorySanitizerDr, StackStoreInDSOTest) { 2491 if (!__msan_has_dynamic_component()) return; 2492 dso_stack_store(StackStoreInDSOFn, 1); 2493 } 2494 2495 TEST(MemorySanitizerOrigins, SetGet) { 2496 EXPECT_EQ(TrackingOrigins(), __msan_get_track_origins()); 2497 if (!TrackingOrigins()) return; 2498 int x; 2499 __msan_set_origin(&x, sizeof(x), 1234); 2500 EXPECT_EQ(1234, __msan_get_origin(&x)); 2501 __msan_set_origin(&x, sizeof(x), 5678); 2502 EXPECT_EQ(5678, __msan_get_origin(&x)); 2503 __msan_set_origin(&x, sizeof(x), 0); 2504 EXPECT_EQ(0, __msan_get_origin(&x)); 2505 } 2506 2507 namespace { 2508 struct S { 2509 U4 dummy; 2510 U2 a; 2511 U2 b; 2512 }; 2513 2514 // http://code.google.com/p/memory-sanitizer/issues/detail?id=6 2515 TEST(MemorySanitizerOrigins, DISABLED_InitializedStoreDoesNotChangeOrigin) { 2516 if (!TrackingOrigins()) return; 2517 2518 S s; 2519 U4 origin = rand(); // NOLINT 2520 s.a = *GetPoisonedO<U2>(0, origin); 2521 EXPECT_EQ(origin, __msan_get_origin(&s.a)); 2522 EXPECT_EQ(origin, __msan_get_origin(&s.b)); 2523 2524 s.b = 42; 2525 EXPECT_EQ(origin, __msan_get_origin(&s.a)); 2526 EXPECT_EQ(origin, __msan_get_origin(&s.b)); 2527 } 2528 } // namespace 2529 2530 template<class T, class BinaryOp> 2531 INLINE 2532 void BinaryOpOriginTest(BinaryOp op) { 2533 U4 ox = rand(); //NOLINT 2534 U4 oy = rand(); //NOLINT 2535 T *x = GetPoisonedO<T>(0, ox, 0); 2536 T *y = GetPoisonedO<T>(1, oy, 0); 2537 T *z = GetPoisonedO<T>(2, 0, 0); 2538 2539 *z = op(*x, *y); 2540 U4 origin = __msan_get_origin(z); 2541 EXPECT_POISONED_O(*z, origin); 2542 EXPECT_EQ(true, origin == ox || origin == oy); 2543 2544 // y is poisoned, x is not. 2545 *x = 10101; 2546 *y = *GetPoisonedO<T>(1, oy); 2547 break_optimization(x); 2548 __msan_set_origin(z, sizeof(*z), 0); 2549 *z = op(*x, *y); 2550 EXPECT_POISONED_O(*z, oy); 2551 EXPECT_EQ(__msan_get_origin(z), oy); 2552 2553 // x is poisoned, y is not. 2554 *x = *GetPoisonedO<T>(0, ox); 2555 *y = 10101010; 2556 break_optimization(y); 2557 __msan_set_origin(z, sizeof(*z), 0); 2558 *z = op(*x, *y); 2559 EXPECT_POISONED_O(*z, ox); 2560 EXPECT_EQ(__msan_get_origin(z), ox); 2561 } 2562 2563 template<class T> INLINE T XOR(const T &a, const T&b) { return a ^ b; } 2564 template<class T> INLINE T ADD(const T &a, const T&b) { return a + b; } 2565 template<class T> INLINE T SUB(const T &a, const T&b) { return a - b; } 2566 template<class T> INLINE T MUL(const T &a, const T&b) { return a * b; } 2567 template<class T> INLINE T AND(const T &a, const T&b) { return a & b; } 2568 template<class T> INLINE T OR (const T &a, const T&b) { return a | b; } 2569 2570 TEST(MemorySanitizerOrigins, BinaryOp) { 2571 if (!TrackingOrigins()) return; 2572 BinaryOpOriginTest<S8>(XOR<S8>); 2573 BinaryOpOriginTest<U8>(ADD<U8>); 2574 BinaryOpOriginTest<S4>(SUB<S4>); 2575 BinaryOpOriginTest<S4>(MUL<S4>); 2576 BinaryOpOriginTest<U4>(OR<U4>); 2577 BinaryOpOriginTest<U4>(AND<U4>); 2578 BinaryOpOriginTest<double>(ADD<U4>); 2579 BinaryOpOriginTest<float>(ADD<S4>); 2580 BinaryOpOriginTest<double>(ADD<double>); 2581 BinaryOpOriginTest<float>(ADD<double>); 2582 } 2583 2584 TEST(MemorySanitizerOrigins, Unary) { 2585 if (!TrackingOrigins()) return; 2586 EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); 2587 EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); 2588 EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); 2589 EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); 2590 2591 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2592 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2593 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2594 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2595 2596 EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); 2597 EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); 2598 EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); 2599 EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); 2600 2601 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2602 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2603 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2604 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2605 2606 EXPECT_POISONED_O((void*)*GetPoisonedO<S8>(0, __LINE__), __LINE__); 2607 EXPECT_POISONED_O((U8)*GetPoisonedO<void*>(0, __LINE__), __LINE__); 2608 } 2609 2610 TEST(MemorySanitizerOrigins, EQ) { 2611 if (!TrackingOrigins()) return; 2612 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__) <= 11, __LINE__); 2613 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__) == 11, __LINE__); 2614 EXPECT_POISONED_O(*GetPoisonedO<float>(0, __LINE__) == 1.1, __LINE__); 2615 } 2616 2617 TEST(MemorySanitizerOrigins, DIV) { 2618 if (!TrackingOrigins()) return; 2619 EXPECT_POISONED_O(*GetPoisonedO<U8>(0, __LINE__) / 100, __LINE__); 2620 unsigned o = __LINE__; 2621 EXPECT_UMR_O(volatile unsigned y = 100 / *GetPoisonedO<S4>(0, o, 1), o); 2622 } 2623 2624 TEST(MemorySanitizerOrigins, SHIFT) { 2625 if (!TrackingOrigins()) return; 2626 EXPECT_POISONED_O(*GetPoisonedO<U8>(0, __LINE__) >> 10, __LINE__); 2627 EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__) >> 10, __LINE__); 2628 EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__) << 10, __LINE__); 2629 EXPECT_POISONED_O(10U << *GetPoisonedO<U8>(0, __LINE__), __LINE__); 2630 EXPECT_POISONED_O(-10 >> *GetPoisonedO<S8>(0, __LINE__), __LINE__); 2631 EXPECT_POISONED_O(-10 << *GetPoisonedO<S8>(0, __LINE__), __LINE__); 2632 } 2633 2634 template<class T, int N> 2635 void MemCpyTest() { 2636 int ox = __LINE__; 2637 T *x = new T[N]; 2638 T *y = new T[N]; 2639 T *z = new T[N]; 2640 T *q = new T[N]; 2641 __msan_poison(x, N * sizeof(T)); 2642 __msan_set_origin(x, N * sizeof(T), ox); 2643 __msan_set_origin(y, N * sizeof(T), 777777); 2644 __msan_set_origin(z, N * sizeof(T), 888888); 2645 EXPECT_NOT_POISONED(x); 2646 memcpy(y, x, N * sizeof(T)); 2647 EXPECT_POISONED_O(y[0], ox); 2648 EXPECT_POISONED_O(y[N/2], ox); 2649 EXPECT_POISONED_O(y[N-1], ox); 2650 EXPECT_NOT_POISONED(x); 2651 void *res = mempcpy(q, x, N * sizeof(T)); 2652 ASSERT_EQ(q + N, res); 2653 EXPECT_POISONED_O(q[0], ox); 2654 EXPECT_POISONED_O(q[N/2], ox); 2655 EXPECT_POISONED_O(q[N-1], ox); 2656 EXPECT_NOT_POISONED(x); 2657 memmove(z, x, N * sizeof(T)); 2658 EXPECT_POISONED_O(z[0], ox); 2659 EXPECT_POISONED_O(z[N/2], ox); 2660 EXPECT_POISONED_O(z[N-1], ox); 2661 } 2662 2663 TEST(MemorySanitizerOrigins, LargeMemCpy) { 2664 if (!TrackingOrigins()) return; 2665 MemCpyTest<U1, 10000>(); 2666 MemCpyTest<U8, 10000>(); 2667 } 2668 2669 TEST(MemorySanitizerOrigins, SmallMemCpy) { 2670 if (!TrackingOrigins()) return; 2671 MemCpyTest<U8, 1>(); 2672 MemCpyTest<U8, 2>(); 2673 MemCpyTest<U8, 3>(); 2674 } 2675 2676 TEST(MemorySanitizerOrigins, Select) { 2677 if (!TrackingOrigins()) return; 2678 EXPECT_NOT_POISONED(g_one ? 1 : *GetPoisonedO<S4>(0, __LINE__)); 2679 EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); 2680 S4 x; 2681 break_optimization(&x); 2682 x = g_1 ? *GetPoisonedO<S4>(0, __LINE__) : 0; 2683 2684 EXPECT_POISONED_O(g_1 ? *GetPoisonedO<S4>(0, __LINE__) : 1, __LINE__); 2685 EXPECT_POISONED_O(g_0 ? 1 : *GetPoisonedO<S4>(0, __LINE__), __LINE__); 2686 } 2687 2688 extern "C" 2689 NOINLINE char AllocaTO() { 2690 int ar[100]; 2691 break_optimization(ar); 2692 return ar[10]; 2693 // fprintf(stderr, "Descr: %s\n", 2694 // __msan_get_origin_descr_if_stack(__msan_get_origin_tls())); 2695 } 2696 2697 TEST(MemorySanitizerOrigins, Alloca) { 2698 if (!TrackingOrigins()) return; 2699 EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); 2700 EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); 2701 EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); 2702 EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); 2703 } 2704 2705 // FIXME: replace with a lit-like test. 2706 TEST(MemorySanitizerOrigins, DISABLED_AllocaDeath) { 2707 if (!TrackingOrigins()) return; 2708 EXPECT_DEATH(AllocaTO(), "ORIGIN: stack allocation: ar@AllocaTO"); 2709 } 2710 2711 NOINLINE int RetvalOriginTest(U4 origin) { 2712 int *a = new int; 2713 break_optimization(a); 2714 __msan_set_origin(a, sizeof(*a), origin); 2715 int res = *a; 2716 delete a; 2717 return res; 2718 } 2719 2720 TEST(MemorySanitizerOrigins, Retval) { 2721 if (!TrackingOrigins()) return; 2722 EXPECT_POISONED_O(RetvalOriginTest(__LINE__), __LINE__); 2723 } 2724 2725 NOINLINE void ParamOriginTest(int param, U4 origin) { 2726 EXPECT_POISONED_O(param, origin); 2727 } 2728 2729 TEST(MemorySanitizerOrigins, Param) { 2730 if (!TrackingOrigins()) return; 2731 int *a = new int; 2732 U4 origin = __LINE__; 2733 break_optimization(a); 2734 __msan_set_origin(a, sizeof(*a), origin); 2735 ParamOriginTest(*a, origin); 2736 delete a; 2737 } 2738 2739 TEST(MemorySanitizerOrigins, Invoke) { 2740 if (!TrackingOrigins()) return; 2741 StructWithDtor s; // Will cause the calls to become invokes. 2742 EXPECT_POISONED_O(RetvalOriginTest(__LINE__), __LINE__); 2743 } 2744 2745 TEST(MemorySanitizerOrigins, strlen) { 2746 S8 alignment; 2747 break_optimization(&alignment); 2748 char x[4] = {'a', 'b', 0, 0}; 2749 __msan_poison(&x[2], 1); 2750 U4 origin = __LINE__; 2751 __msan_set_origin(x, sizeof(x), origin); 2752 EXPECT_UMR_O(volatile unsigned y = strlen(x), origin); 2753 } 2754 2755 TEST(MemorySanitizerOrigins, wcslen) { 2756 wchar_t w[3] = {'a', 'b', 0}; 2757 U4 origin = __LINE__; 2758 __msan_set_origin(w, sizeof(w), origin); 2759 __msan_poison(&w[2], sizeof(wchar_t)); 2760 EXPECT_UMR_O(volatile unsigned y = wcslen(w), origin); 2761 } 2762 2763 #if MSAN_HAS_M128 2764 TEST(MemorySanitizerOrigins, StoreIntrinsic) { 2765 __m128 x, y; 2766 U4 origin = __LINE__; 2767 __msan_set_origin(&x, sizeof(x), origin); 2768 __msan_poison(&x, sizeof(x)); 2769 __builtin_ia32_storeups((float*)&y, x); 2770 EXPECT_POISONED_O(y, origin); 2771 } 2772 #endif 2773 2774 NOINLINE void RecursiveMalloc(int depth) { 2775 static int count; 2776 count++; 2777 if ((count % (1024 * 1024)) == 0) 2778 printf("RecursiveMalloc: %d\n", count); 2779 int *x1 = new int; 2780 int *x2 = new int; 2781 break_optimization(x1); 2782 break_optimization(x2); 2783 if (depth > 0) { 2784 RecursiveMalloc(depth-1); 2785 RecursiveMalloc(depth-1); 2786 } 2787 delete x1; 2788 delete x2; 2789 } 2790 2791 TEST(MemorySanitizer, CallocOverflow) { 2792 size_t kArraySize = 4096; 2793 volatile size_t kMaxSizeT = std::numeric_limits<size_t>::max(); 2794 volatile size_t kArraySize2 = kMaxSizeT / kArraySize + 10; 2795 void *p = calloc(kArraySize, kArraySize2); // Should return 0. 2796 EXPECT_EQ(0L, Ident(p)); 2797 } 2798 2799 TEST(MemorySanitizerStress, DISABLED_MallocStackTrace) { 2800 RecursiveMalloc(22); 2801 } 2802 2803 TEST(MemorySanitizerAllocator, get_estimated_allocated_size) { 2804 size_t sizes[] = {0, 20, 5000, 1<<20}; 2805 for (size_t i = 0; i < sizeof(sizes) / sizeof(*sizes); ++i) { 2806 size_t alloc_size = __msan_get_estimated_allocated_size(sizes[i]); 2807 EXPECT_EQ(alloc_size, sizes[i]); 2808 } 2809 } 2810 2811 TEST(MemorySanitizerAllocator, get_allocated_size_and_ownership) { 2812 char *array = reinterpret_cast<char*>(malloc(100)); 2813 int *int_ptr = new int; 2814 2815 EXPECT_TRUE(__msan_get_ownership(array)); 2816 EXPECT_EQ(100, __msan_get_allocated_size(array)); 2817 2818 EXPECT_TRUE(__msan_get_ownership(int_ptr)); 2819 EXPECT_EQ(sizeof(*int_ptr), __msan_get_allocated_size(int_ptr)); 2820 2821 void *wild_addr = reinterpret_cast<void*>(0x1); 2822 EXPECT_FALSE(__msan_get_ownership(wild_addr)); 2823 EXPECT_EQ(0, __msan_get_allocated_size(wild_addr)); 2824 2825 EXPECT_FALSE(__msan_get_ownership(array + 50)); 2826 EXPECT_EQ(0, __msan_get_allocated_size(array + 50)); 2827 2828 // NULL is a valid argument for GetAllocatedSize but is not owned. 2829 EXPECT_FALSE(__msan_get_ownership(NULL)); 2830 EXPECT_EQ(0, __msan_get_allocated_size(NULL)); 2831 2832 free(array); 2833 EXPECT_FALSE(__msan_get_ownership(array)); 2834 EXPECT_EQ(0, __msan_get_allocated_size(array)); 2835 2836 delete int_ptr; 2837 } 2838
