src/http/modules/ngx_http_limit_conn_module.c:526: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64 by call to `ngx_parse_size`.

src/http/modules/ngx_http_limit_conn_module.c:546:13: Assignment
544. 
545.             value[i].len--;
546.             value[i].data++;
                 ^
547. 
548.             ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_conn_ctx_t));

src/http/modules/ngx_http_limit_conn_module.c:524:13: Assignment
522. 
523.             s.data = p + 1;
524.             s.len = value[i].data + value[i].len - s.data;
                 ^
525. 
526.             size = ngx_parse_size(&s);

src/http/modules/ngx_http_limit_conn_module.c:526:20: Call
524.             s.len = value[i].data + value[i].len - s.data;
525. 
526.             size = ngx_parse_size(&s);
                        ^
527. 
528.             if (size == NGX_ERROR) {

src/core/ngx_parse.c:12:1: <LHS trace>
10. 
11. 
12. ssize_t
    ^
13. ngx_parse_size(ngx_str_t *line)
14. {

src/core/ngx_parse.c:12:1: Parameter `line->len`
  10. 
  11. 
  12. ssize_t
      ^
  13. ngx_parse_size(ngx_str_t *line)
  14. {

src/core/ngx_parse.c:20:5: Assignment
  18.     ngx_int_t  scale;
  19. 
  20.     len = line->len;
          ^
  21.     unit = line->data[len - 1];
  22. 

src/core/ngx_parse.c:21:12: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ngx_parse_size` 
  19. 
  20.     len = line->len;
  21.     unit = line->data[len - 1];
                 ^
  22. 
  23.     switch (unit) {
