PP_Resource PPB_ImageData_Impl::CreatePlatform(PP_Instance instance,
                                               PP_ImageDataFormat format,
                                               const PP_Size& size,
                                               PP_Bool init_to_zero) {
  scoped_refptr<PPB_ImageData_Impl>
      data(new PPB_ImageData_Impl(instance, PLATFORM));
  if (!data->Init(format, size.width, size.height, !!init_to_zero))
    return 0;
  return data->GetReference();
}

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.