int32_t HashCode(int32_t platform_id, int32_t encoding_id, int32_t language_id,
                 int32_t name_id) {
  int32_t result = platform_id << 24 | encoding_id << 16 | language_id << 8;
  if (name_id == NameId::kFullFontName) {
    result |= 0xff;
  } else if (name_id == NameId::kPreferredFamily ||
             name_id == NameId::kPreferredSubfamily) {
    result |= 0xf;
  } else if (name_id == NameId::kWWSFamilyName ||
             name_id == NameId::kWWSSubfamilyName) {
    result |= 1;
  }
  return result;
}

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.