bool DoesBeginSlashWindowsDriveSpec(const CHAR* spec, int start_offset,
                                    int spec_len) {
  if (start_offset >= spec_len)
    return false;
  return url_parse::IsURLSlash(spec[start_offset]) &&
      url_parse::DoesBeginWindowsDriveSpec(spec, start_offset + 1, spec_len);
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.