Merge "Test that out-of-bounds UAF is not detected with MTE." am: fc7852b7

#endif

}

TEST_P(SizeParamCrasherTest, mte_oob_uaf) {

#if defined(__aarch64__)

  if (!mte_supported()) {

    GTEST_SKIP() << "Requires MTE";

  }

  int intercept_result;

  unique_fd output_fd;

  StartProcess([&]() {

    SetTagCheckingLevelSync();

    volatile int* p = (volatile int*)malloc(GetParam());

    free((void *)p);

    p[-1] = 42;

  });

  StartIntercept(&output_fd);

  FinishCrasher();

  AssertDeath(SIGSEGV);

  FinishIntercept(&intercept_result);

  ASSERT_EQ(1, intercept_result) << "tombstoned reported failure";

  std::string result;

  ConsumeFd(std::move(output_fd), &result);

  ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");

  ASSERT_NOT_MATCH(result, R"(Cause: \[MTE\]: Use After Free, 4 bytes left)");

#else

  GTEST_SKIP() << "Requires aarch64";

#endif

}

TEST_P(SizeParamCrasherTest, mte_overflow) {

#if defined(__aarch64__)

  if (!mte_supported()) {