src: provide workaround for container-overflow (issue 55584)

Author: lemire

src/node_modules.cc

@@ -100,11 +100,21 @@ const BindingData::PackageConfig* BindingData::GetPackageJSON(
  if (ReadFileSync(&package_config.raw_json, path.data()) < 0) {
  return nullptr;
  }
+ // In some systems, std::string is annotated to generate an
+ // AddressSanitizer: container-overflow error when reading beyond the end of
+ // the string even when we are still within the capacity of the string.
+ // https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow
+ // https://github.com/nodejs/node/issues/55584
+ // The next three lines are a workaround to avoid this false positive.
+ size_t json_length = package_config.raw_json.size();
+ package_config.raw_json.append(simdjson::SIMDJSON_PADDING, ' ');
+ simdjson::padded_string_view json_view(package_config.raw_json.data(), json_length, package_config.raw_json.size());
+ // End of workaround
 
  simdjson::ondemand::document document;
  simdjson::ondemand::object main_object;
  simdjson::error_code error =
- binding_data->json_parser.iterate(package_config.raw_json).get(document);
+ binding_data->json_parser.iterate(json_view).get(document);
 
  const auto throw_invalid_package_config = [error_context, path, realm]() {
  if (error_context == nullptr) {