static BROTLI_INLINE void ProcessRepeatedCodeLength(uint32_t code_len,
    uint32_t repeat_delta, uint32_t alphabet_size, uint32_t* symbol,
    uint32_t* repeat, uint32_t* space, uint32_t* prev_code_len,
    uint32_t* repeat_code_len, uint16_t* symbol_lists,
    uint16_t* code_length_histo, int* next_symbol) {
  uint32_t old_repeat;
  uint32_t new_len = 0;
  if (code_len == kCodeLengthRepeatCode) {
    new_len = *prev_code_len;
  }
  if (*repeat_code_len != new_len) {
    *repeat = 0;
    *repeat_code_len = new_len;
  }
  old_repeat = *repeat;
  if (*repeat > 0) {
    *repeat -= 2;
    *repeat <<= code_len - 14U;
  }
  *repeat += repeat_delta + 3U;
  repeat_delta = *repeat - old_repeat;
  if (*symbol + repeat_delta > alphabet_size) {
    (void)BROTLI_FAILURE();
    *symbol = alphabet_size;
    *space = 0xFFFFF;
    return;
  }
  if (*repeat_code_len != 0) {
    unsigned last = *symbol + repeat_delta;
    int next = next_symbol[*repeat_code_len];
    do {
      symbol_lists[next] = (uint16_t)*symbol;
      next = (int)*symbol;
    } while (++(*symbol) != last);
    next_symbol[*repeat_code_len] = next;
    *space -= repeat_delta << (15 - *repeat_code_len);
    code_length_histo[*repeat_code_len] = (uint16_t)
        (code_length_histo[*repeat_code_len] + repeat_delta);
  } else {
    *symbol += repeat_delta;
  }
}

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.