1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596
|
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "components/gwp_asan/crash_handler/crash_handler.h"
#include <array>
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/scoped_temp_dir.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/page_size.h"
#include "base/no_destructor.h"
#include "base/path_service.h"
#include "base/strings/stringprintf.h"
#include "base/test/gtest_util.h"
#include "base/test/multiprocess_test.h"
#include "base/test/test_timeouts.h"
#include "build/build_config.h"
#include "components/gwp_asan/client/guarded_page_allocator.h"
#include "components/gwp_asan/client/gwp_asan.h"
#include "components/gwp_asan/client/lightweight_detector/poison_metadata_recorder.h"
#include "components/gwp_asan/common/crash_key_name.h"
#include "components/gwp_asan/common/lightweight_detector_state.h"
#include "components/gwp_asan/crash_handler/crash.pb.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/multiprocess_func_list.h"
#include "third_party/crashpad/crashpad/client/annotation.h"
#include "third_party/crashpad/crashpad/client/crash_report_database.h"
#include "third_party/crashpad/crashpad/client/crashpad_client.h"
#include "third_party/crashpad/crashpad/client/crashpad_info.h"
#include "third_party/crashpad/crashpad/handler/handler_main.h"
#include "third_party/crashpad/crashpad/snapshot/minidump/process_snapshot_minidump.h"
#include "third_party/crashpad/crashpad/tools/tool_support.h"
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
#include "third_party/crashpad/crashpad/snapshot/sanitized/sanitization_information.h"
#endif
namespace gwp_asan {
namespace internal {
namespace {
constexpr size_t kAllocationSize = 902;
constexpr int kSuccess = 0;
static constexpr size_t kMaxMetadata = 2048;
static constexpr size_t kTotalPages = 8192;
#if !BUILDFLAG(IS_ANDROID)
int HandlerMainAdaptor(int argc, char* argv[]) {
crashpad::UserStreamDataSources user_stream_data_sources;
user_stream_data_sources.push_back(
std::make_unique<gwp_asan::UserStreamDataSource>());
return crashpad::HandlerMain(argc, argv, &user_stream_data_sources);
}
// Child process that runs the crashpad handler.
MULTIPROCESS_TEST_MAIN(CrashpadHandler) {
base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
// Remove the --test-child-process argument from argv and launch crashpad.
#if BUILDFLAG(IS_WIN)
std::vector<wchar_t*> argv;
for (auto& arg : cmd_line->argv()) {
if (arg.find(L"test-child-process") == std::string::npos)
argv.push_back(const_cast<wchar_t*>(arg.c_str()));
}
crashpad::ToolSupport::Wmain(argv.size(), argv.data(), HandlerMainAdaptor);
#else
std::vector<char*> argv;
for (auto& arg : cmd_line->argv()) {
if (arg.find("test-child-process") == std::string::npos)
argv.push_back(const_cast<char*>(arg.c_str()));
}
HandlerMainAdaptor(argv.size(), argv.data());
#endif
return 0;
}
#endif // !BUILDFLAG(IS_ANDROID)
// Child process that launches the crashpad handler and then crashes.
MULTIPROCESS_TEST_MAIN(CrashingProcess) {
#if BUILDFLAG(IS_APPLE)
// Disable the system crash reporter from inspecting this crash (it is slow
// and causes test timeouts.)
crashpad::CrashpadInfo::GetCrashpadInfo()
->set_system_crash_reporter_forwarding(crashpad::TriState::kDisabled);
#endif
base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
base::FilePath directory = cmd_line->GetSwitchValuePath("directory");
CHECK(!directory.empty());
std::string test_name = cmd_line->GetSwitchValueASCII("test-name");
CHECK(!test_name.empty());
std::string allocator = cmd_line->GetSwitchValueASCII("allocator");
const char* annotation_name;
if (allocator == "malloc") {
annotation_name = kMallocCrashKey;
} else if (allocator == "partitionalloc") {
annotation_name = kPartitionAllocCrashKey;
} else {
LOG(ERROR) << "Unknown allocator";
return kSuccess;
}
base::NoDestructor<GuardedPageAllocator> gpa;
CHECK(gpa->Init(
AllocatorSettings{
.max_allocated_pages = kMaxMetadata,
.num_metadata = kMaxMetadata,
.total_pages = kTotalPages,
.sampling_frequency = 0u,
},
base::DoNothing(), allocator == "partitionalloc"));
static crashpad::StringAnnotation<24> gpa_annotation(annotation_name);
gpa_annotation.Set(gpa->GetCrashKey());
if (cmd_line->HasSwitch("enable-lightweight-detector")) {
lud::PoisonMetadataRecorder::Init(LightweightDetectorMode::kBrpQuarantine,
1);
static crashpad::StringAnnotation<24> lightweight_detector_annotation(
kLightweightDetectorCrashKey);
lightweight_detector_annotation.Set(
lud::PoisonMetadataRecorder::Get()->GetCrashKey());
}
base::FilePath metrics_dir(FILE_PATH_LITERAL(""));
std::map<std::string, std::string> annotations;
std::vector<std::string> arguments;
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
static crashpad::SanitizationInformation sanitization_info = {};
static crashpad::SanitizationAllowedMemoryRanges allowed_memory_ranges;
if (cmd_line->HasSwitch("sanitize")) {
auto memory_ranges = gpa->GetInternalMemoryRegions();
if (cmd_line->HasSwitch("enable-lightweight-detector")) {
auto detector_memory_ranges =
lud::PoisonMetadataRecorder::Get()->GetInternalMemoryRegions();
memory_ranges.insert(memory_ranges.end(), detector_memory_ranges.begin(),
detector_memory_ranges.end());
}
auto* range_array =
new crashpad::SanitizationAllowedMemoryRanges::Range[memory_ranges
.size()];
for (size_t i = 0; i < memory_ranges.size(); i++) {
range_array[i].base =
reinterpret_cast<crashpad::VMAddress>(memory_ranges[i].first);
range_array[i].length = memory_ranges[i].second;
}
allowed_memory_ranges.size = memory_ranges.size();
allowed_memory_ranges.entries =
reinterpret_cast<crashpad::VMAddress>(range_array);
sanitization_info.allowed_memory_ranges_address =
reinterpret_cast<crashpad::VMAddress>(&allowed_memory_ranges);
arguments.push_back(base::StringPrintf("--sanitization-information=%p",
&sanitization_info));
}
#endif
#if !BUILDFLAG(IS_ANDROID)
arguments.push_back("--test-child-process=CrashpadHandler");
#endif
crashpad::CrashpadClient* client = new crashpad::CrashpadClient();
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
bool handler =
client->StartHandlerAtCrash(/* handler */ cmd_line->GetProgram(),
/* database */ directory,
/* metrics_dir */ metrics_dir,
/* url */ "",
/* annotations */ annotations,
/* arguments */ arguments);
#elif BUILDFLAG(IS_ANDROID)
// TODO: Once the minSdkVersion is >= Q define a CrashpadHandlerMain() and
// use the /system/bin/linker approach instead of using
// libchrome_crashpad_handler.so
base::FilePath modules;
if (!base::PathService::Get(base::DIR_MODULE, &modules)) {
LOG(ERROR) << "Failed to read DIR_MODULE";
return kSuccess;
}
base::FilePath executable_path =
modules.AppendASCII("libchrome_crashpad_handler.so");
std::unique_ptr<base::Environment> env(base::Environment::Create());
std::string library_path = env->GetVar("LD_LIBRARY_PATH").value_or("");
env->SetVar("LD_LIBRARY_PATH", library_path + ":" + modules.value());
bool handler = client->StartHandlerAtCrash(
executable_path, directory, metrics_dir, "", annotations, arguments);
#else
bool handler = client->StartHandler(/* handler */ cmd_line->GetProgram(),
/* database */ directory,
/* metrics_dir */ metrics_dir,
/* url */ "",
/* annotations */ annotations,
/* arguments */ arguments,
/* restartable */ false,
/* asynchronous_start */ false);
#endif
if (!handler) {
LOG(ERROR) << "Crash handler failed to launch";
return kSuccess;
}
if (test_name == "UseAfterFree") {
void* ptr = gpa->Allocate(kAllocationSize);
gpa->Deallocate(ptr);
*(int*)ptr = 0;
} else if (test_name == "DoubleFree") {
void* ptr = gpa->Allocate(kAllocationSize);
gpa->Deallocate(ptr);
gpa->Deallocate(ptr);
} else if (test_name == "Underflow") {
void* ptr = gpa->Allocate(kAllocationSize);
for (size_t i = 0; i < base::GetPageSize(); i++) {
// Cast to `ptrdiff_t` so that the offset is actually negative, rather
// than a very large unsigned value. With a very large unsigned value,
// UBSan flags the error without any information about allocation sizes,
// which impacts the crash handling.
//
// The compiler could also, in principle, see that `ptr[-size_t{1}]` is
// always UB because no allocation can be that large, and then optimize
// this code to assume `base::GetPageSize()` returns one, suppressing the
// crash. (Though, as of writing, it does not do this.)
//
// Avoid these issues by underflowing with an actual negative value. This
// is still UB (thus the crash), but requires knowledge of `ptr` to
// observe, so a non-ASan compiler does not interfere with it in practice.
((unsigned char*)ptr)[-static_cast<ptrdiff_t>(i)] = 0;
}
} else if (test_name == "Overflow") {
void* ptr = gpa->Allocate(kAllocationSize);
for (size_t i = 0; i <= base::GetPageSize(); i++) {
((unsigned char*)ptr)[i] = 0;
}
} else if (test_name == "UnrelatedException") {
__builtin_trap();
} else if (test_name == "FreeInvalidAddress") {
void* ptr = gpa->Allocate(kAllocationSize);
uintptr_t bad_address = reinterpret_cast<uintptr_t>(ptr) + 1;
gpa->Deallocate(reinterpret_cast<void*>(bad_address));
} else if (test_name == "MissingMetadata") {
// Consume all allocations/metadata
std::array<void*, kMaxMetadata> ptrs;
for (size_t i = 0; i < kMaxMetadata; i++) {
ptrs[i] = gpa->Allocate(1);
}
gpa->Deallocate(ptrs[0]);
// Take the remaining metadata slot with an allocation on a different page.
while (true) {
void* new_alloc = gpa->Allocate(1);
if (new_alloc != ptrs[0])
break;
gpa->Deallocate(new_alloc);
}
// Cause a crash accessing an allocation that no longer has metadata
// associated with it.
*(uint8_t*)(ptrs[0]) = 0;
} else if (test_name == "LightweightDetectorUseAfterFree") {
uint8_t fake_alloc[kAllocationSize];
lud::PoisonMetadataRecorder::Get()->RecordAndZap(&fake_alloc,
sizeof(fake_alloc));
**(int**)fake_alloc = 0;
} else {
LOG(ERROR) << "Unknown test name " << test_name;
}
LOG(ERROR) << "This return should never be reached.";
return kSuccess;
}
enum class ShouldSanitize : bool { kNo, kYes };
enum class EnableLightweightDetector : bool { kNo, kYes };
enum class HasAllocation : bool { kNo, kYes };
enum class HasDeallocation : bool { kNo, kYes };
struct TestParams {
TestParams(const char* allocator,
ShouldSanitize sanitize,
EnableLightweightDetector enable_lightweight_detector)
: allocator(allocator),
sanitize(sanitize),
enable_lightweight_detector(enable_lightweight_detector) {}
const char* allocator;
ShouldSanitize sanitize;
EnableLightweightDetector enable_lightweight_detector;
};
class BaseCrashHandlerTest : public base::MultiProcessTest,
public testing::WithParamInterface<TestParams> {
protected:
BaseCrashHandlerTest() : params_(GetParam()) {}
// Launch a child process and wait for it to crash. Set |gwp_asan_found_| if a
// GWP-ASan data was found and if so, read it into |proto_|.
void SetUp() final {
base::ScopedTempDir database_dir;
ASSERT_TRUE(database_dir.CreateUniqueTempDir());
// Remove the parameterized test suffix from the test name.
std::string test_name(
testing::UnitTest::GetInstance()->current_test_info()->name());
size_t separator = test_name.find("/");
ASSERT_NE(separator, std::string::npos);
test_name.erase(separator);
ASSERT_TRUE(runTestProcess(database_dir.GetPath(), test_name.c_str()));
bool minidump_found;
readGwpAsanStreamFromCrash(database_dir.GetPath(), &minidump_found,
&gwp_asan_found_, &proto_);
ASSERT_TRUE(minidump_found);
}
// Launch a second process that installs a crashpad handler and causes an
// exception of type test_name, then validate that it exited successfully.
// crashpad is initialized to write to the given database directory.
bool runTestProcess(const base::FilePath& database_dir,
const char* test_name) {
base::CommandLine cmd_line =
base::GetMultiProcessTestChildBaseCommandLine();
cmd_line.AppendSwitchPath("directory", database_dir);
cmd_line.AppendSwitchASCII("test-name", test_name);
cmd_line.AppendSwitchASCII("allocator", params_.allocator);
if (params_.sanitize == ShouldSanitize::kYes) {
cmd_line.AppendSwitch("sanitize");
}
if (params_.enable_lightweight_detector ==
EnableLightweightDetector::kYes) {
cmd_line.AppendSwitch("enable-lightweight-detector");
}
base::LaunchOptions options;
#if BUILDFLAG(IS_WIN)
options.start_hidden = true;
#endif // BUILDFLAG(IS_WIN)
base::Process process =
base::SpawnMultiProcessTestChild("CrashingProcess", cmd_line, options);
#if !BUILDFLAG(IS_ANDROID)
int exit_code = -1;
EXPECT_TRUE(WaitForMultiprocessTestChildExit(
process, TestTimeouts::action_max_timeout(), &exit_code));
EXPECT_NE(exit_code, kSuccess);
return (exit_code != kSuccess);
#else
// TODO(crbug.com/40632533): Android's implementation of
// WaitForMultiprocessTestChildExit can't detect child process crashes, this
// can be fixed after minSdkVersion >= Q.
for (int i = 0; i < TestTimeouts::action_max_timeout().InSeconds(); i++) {
if (kill(process.Pid(), 0) && errno == ESRCH)
return true;
sleep(1);
}
return false;
#endif
}
// Given a directory with a single crashpad exception, read and parse the
// minidump and identify whether it has a GWP-ASan stream. If it successfully
// found a minidump, it writes true to minidump_found. If it sucessfully found
// a GWP-ASan stream in the minidump, it writes true to gwp_asan_found and
// parses the protobuf into into proto_out.
void readGwpAsanStreamFromCrash(const base::FilePath& database_dir,
bool* minidump_found,
bool* gwp_asan_found,
gwp_asan::Crash* proto_out) {
*minidump_found = *gwp_asan_found = false;
auto database =
crashpad::CrashReportDatabase::InitializeWithoutCreating(database_dir);
std::vector<crashpad::CrashReportDatabase::Report> reports;
ASSERT_EQ(database->GetPendingReports(&reports),
crashpad::CrashReportDatabase::kNoError);
ASSERT_EQ(reports.size(), 1U);
crashpad::FileReader minidump_file_reader;
ASSERT_TRUE(minidump_file_reader.Open(reports[0].file_path));
crashpad::ProcessSnapshotMinidump minidump_process_snapshot;
ASSERT_TRUE(minidump_process_snapshot.Initialize(&minidump_file_reader));
*minidump_found = true;
auto custom_streams = minidump_process_snapshot.CustomMinidumpStreams();
for (auto* stream : custom_streams) {
if (stream->stream_type() == static_cast<crashpad::MinidumpStreamType>(
kGwpAsanMinidumpStreamType)) {
ASSERT_TRUE(proto_out->ParseFromArray(stream->data().data(),
stream->data().size()));
*gwp_asan_found = true;
return;
}
}
}
void checkProto(Crash_Mode mode,
Crash_ErrorType error_type,
HasAllocation has_allocation,
HasDeallocation has_deallocation) {
EXPECT_TRUE(proto_.has_mode());
EXPECT_EQ(proto_.mode(), mode);
EXPECT_TRUE(proto_.has_error_type());
EXPECT_EQ(proto_.error_type(), error_type);
EXPECT_TRUE(proto_.has_allocation_address());
EXPECT_TRUE(proto_.has_allocation_size());
EXPECT_EQ(proto_.allocation_size(), kAllocationSize);
EXPECT_EQ(proto_.has_allocation(), has_allocation == HasAllocation::kYes);
if (proto_.has_allocation()) {
EXPECT_TRUE(proto_.allocation().has_thread_id());
EXPECT_NE(proto_.allocation().thread_id(),
static_cast<uint64_t>(base::kInvalidThreadId));
EXPECT_GT(proto_.allocation().stack_trace_size(), 0);
}
EXPECT_EQ(proto_.has_deallocation(),
has_deallocation == HasDeallocation::kYes);
if (proto_.has_deallocation()) {
EXPECT_TRUE(proto_.deallocation().has_thread_id());
EXPECT_NE(proto_.deallocation().thread_id(),
static_cast<uint64_t>(base::kInvalidThreadId));
EXPECT_GT(proto_.deallocation().stack_trace_size(), 0);
}
if (proto_.has_allocation() && proto_.has_deallocation()) {
EXPECT_EQ(proto_.allocation().thread_id(),
proto_.deallocation().thread_id());
}
if (proto_.has_region_start() || proto_.has_region_size()) {
EXPECT_TRUE(proto_.has_region_start());
EXPECT_TRUE(proto_.has_region_size());
EXPECT_EQ(proto_.region_start() & (base::GetPageSize() - 1), 0U);
// We can't have a more precise check of the region size because it
// depends on the PartitionAlloc metadata layout.
EXPECT_GE(proto_.region_size(),
base::GetPageSize() * (2 * kTotalPages + 1));
// Upper bound for number of pages reserved when requesting kTotalPages
// worth of allocatable slots.
constexpr size_t kTotalPagesReserved = 2 * kTotalPages;
EXPECT_LE(proto_.region_size(),
base::GetPageSize() * (2 * kTotalPagesReserved + 1));
}
EXPECT_TRUE(proto_.has_missing_metadata());
EXPECT_FALSE(proto_.missing_metadata());
EXPECT_TRUE(proto_.has_allocator());
if (!strcmp(params_.allocator, "malloc"))
EXPECT_EQ(proto_.allocator(), Crash_Allocator_MALLOC);
else if (!strcmp(params_.allocator, "partitionalloc"))
EXPECT_EQ(proto_.allocator(), Crash_Allocator_PARTITIONALLOC);
else
ASSERT_TRUE(false) << "Unknown allocator name";
}
gwp_asan::Crash proto_;
TestParams params_;
bool gwp_asan_found_;
};
class CrashHandlerTest : public BaseCrashHandlerTest {};
#if defined(ADDRESS_SANITIZER) && (BUILDFLAG(IS_WIN) || BUILDFLAG(IS_ANDROID))
// ASan intercepts crashes and crashpad doesn't have a chance to see them.
#define MAYBE_DISABLED(name) DISABLED_ ##name
#else
#define MAYBE_DISABLED(name) name
#endif
TEST_P(CrashHandlerTest, MAYBE_DISABLED(UseAfterFree)) {
ASSERT_TRUE(gwp_asan_found_);
checkProto(Crash_Mode_CLASSIC, Crash_ErrorType_USE_AFTER_FREE,
HasAllocation::kYes, HasDeallocation::kYes);
}
TEST_P(CrashHandlerTest, MAYBE_DISABLED(DoubleFree)) {
ASSERT_TRUE(gwp_asan_found_);
checkProto(Crash_Mode_CLASSIC, Crash_ErrorType_DOUBLE_FREE,
HasAllocation::kYes, HasDeallocation::kYes);
}
TEST_P(CrashHandlerTest, MAYBE_DISABLED(Underflow)) {
ASSERT_TRUE(gwp_asan_found_);
checkProto(Crash_Mode_CLASSIC, Crash_ErrorType_BUFFER_UNDERFLOW,
HasAllocation::kYes, HasDeallocation::kNo);
}
TEST_P(CrashHandlerTest, MAYBE_DISABLED(Overflow)) {
ASSERT_TRUE(gwp_asan_found_);
checkProto(Crash_Mode_CLASSIC, Crash_ErrorType_BUFFER_OVERFLOW,
HasAllocation::kYes, HasDeallocation::kNo);
}
TEST_P(CrashHandlerTest, MAYBE_DISABLED(FreeInvalidAddress)) {
ASSERT_TRUE(gwp_asan_found_);
checkProto(Crash_Mode_CLASSIC, Crash_ErrorType_FREE_INVALID_ADDRESS,
HasAllocation::kYes, HasDeallocation::kNo);
EXPECT_TRUE(proto_.has_free_invalid_address());
}
TEST_P(CrashHandlerTest, MAYBE_DISABLED(MissingMetadata)) {
ASSERT_TRUE(gwp_asan_found_);
ASSERT_TRUE(proto_.has_missing_metadata());
EXPECT_TRUE(proto_.missing_metadata());
EXPECT_FALSE(proto_.has_error_type());
EXPECT_FALSE(proto_.has_allocation_address());
EXPECT_FALSE(proto_.has_allocation_size());
EXPECT_FALSE(proto_.has_allocation());
EXPECT_FALSE(proto_.has_deallocation());
EXPECT_FALSE(proto_.has_free_invalid_address());
EXPECT_TRUE(proto_.has_region_start());
EXPECT_TRUE(proto_.has_region_size());
}
TEST_P(CrashHandlerTest, MAYBE_DISABLED(UnrelatedException)) {
ASSERT_FALSE(gwp_asan_found_);
}
INSTANTIATE_TEST_SUITE_P(VaryAllocator,
CrashHandlerTest,
testing::Values(
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
TestParams("malloc",
ShouldSanitize::kYes,
EnableLightweightDetector::kNo),
#endif
TestParams("malloc",
ShouldSanitize::kNo,
EnableLightweightDetector::kNo),
TestParams("partitionalloc",
ShouldSanitize::kNo,
EnableLightweightDetector::kNo)));
// ASan hides the fault address from the analyzer.
// The detector is not used on 32-bit systems because pointers there aren't big
// enough to safely store metadata IDs.
#if !defined(ADDRESS_SANITIZER) && defined(ARCH_CPU_64_BITS)
class LightweightDetectorCrashHandlerTest : public BaseCrashHandlerTest {};
TEST_P(LightweightDetectorCrashHandlerTest, LightweightDetectorUseAfterFree) {
ASSERT_TRUE(gwp_asan_found_);
checkProto(Crash_Mode_LIGHTWEIGHT_DETECTOR_BRP,
Crash_ErrorType_USE_AFTER_FREE, HasAllocation::kNo,
HasDeallocation::kYes);
}
INSTANTIATE_TEST_SUITE_P(VarySanitization,
LightweightDetectorCrashHandlerTest,
testing::Values(
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
TestParams("partitionalloc",
ShouldSanitize::kYes,
EnableLightweightDetector::kYes),
#endif
TestParams("partitionalloc",
ShouldSanitize::kNo,
EnableLightweightDetector::kYes)));
#endif // !defined(ADDRESS_SANITIZER) && defined(ARCH_CPU_64_BITS)
} // namespace
} // namespace internal
} // namespace gwp_asan
|