src/http/ngx_http_request.c:441: error: Integer Overflow L2
  ([0, +oo] - 72):unsigned64 by call to `ngx_create_pool`.

src/http/ngx_http_request.c:277:9: Assignment
275.         ngx_memzero(r, sizeof(ngx_http_request_t));
276. 
277.         r->pipeline = hc->pipeline;
             ^
278. 
279.         if (hc->nbusy) {

src/http/ngx_http_request.c:441:15: Call
439.     }
440. 
441.     r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
                   ^
442.     if (r->pool == NULL) {
443.         ngx_http_close_connection(c);

src/core/ngx_palloc.c:15:1: <LHS trace>
13. 
14. 
15. ngx_pool_t *
    ^
16. ngx_create_pool(size_t size, ngx_log_t *log)
17. {

src/core/ngx_palloc.c:15:1: Parameter `size`
  13. 
  14. 
  15. ngx_pool_t *
      ^
  16. ngx_create_pool(size_t size, ngx_log_t *log)
  17. {

src/core/ngx_palloc.c:29:5: Binary operation: ([0, +oo] - 72):unsigned64 by call to `ngx_create_pool` 
  27.     p->d.next = NULL;
  28. 
  29.     size = size - sizeof(ngx_pool_t);
          ^
  30.     p->max = (size < NGX_MAX_ALLOC_FROM_POOL) ? size : NGX_MAX_ALLOC_FROM_POOL;
  31. 
