src/http/ngx_http_upstream.c:733: error: Integer Overflow L2
  ([0, 3+max(64532, `r->main->count`)] - 1):unsigned32 by call to `ngx_http_upstream_connect`.

src/http/ngx_http_upstream.c:549:1: Parameter `r->main->count`
547. 
548. 
549. static void
     ^
550. ngx_http_upstream_init_request(ngx_http_request_t *r)
551. {

src/http/ngx_http_upstream.c:733:13: Call
731.             }
732. 
733.             ngx_http_upstream_connect(r, u);
                 ^
734. 
735.             return;

src/http/ngx_http_upstream.c:1504:1: Parameter `r->main->count`
  1502. 
  1503. 
  1504. static void
        ^
  1505. ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
  1506. {

src/http/ngx_http_upstream.c:1546:9: Call
  1544.     if (rc == NGX_BUSY) {
  1545.         ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
  1546.         ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE);
                ^
  1547.         return;
  1548.     }

src/http/ngx_http_upstream.c:4132:1: Parameter `r->main->count`
    4130. 
    4131. 
    4132. static void
          ^
    4133. ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
    4134.     ngx_uint_t ft_type)

src/http/ngx_http_upstream.c:4208:9: Call
    4206. 
    4207.     if (r->connection->error) {
    4208.         ngx_http_upstream_finalize_request(r, u,
                  ^
    4209.                                            NGX_HTTP_CLIENT_CLOSED_REQUEST);
    4210.         return;

src/http/ngx_http_upstream.c:4300:1: Parameter `r->main->count`
      4298. 
      4299. 
      4300. static void
            ^
      4301. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
      4302.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:4311:9: Call
      4309.     if (u->cleanup == NULL) {
      4310.         /* the request was already finalized */
      4311.         ngx_http_finalize_request(r, NGX_DONE);
                    ^
      4312.         return;
      4313.     }

src/http/ngx_http_request.c:2412:1: Parameter `r->main->count`
        2410. 
        2411. 
        2412. void
              ^
        2413. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
        2414. {

src/http/ngx_http_request.c:2450:13: Call
        2448.         || c->error)
        2449.     {
        2450.         if (ngx_http_post_action(r) == NGX_OK) {
                          ^
        2451.             return;
        2452.         }

src/http/ngx_http_request.c:3501:1: <LHS trace>
3499. 
3500. 
3501. static ngx_int_t
      ^
3502. ngx_http_post_action(ngx_http_request_t *r)
3503. {

src/http/ngx_http_request.c:3501:1: Parameter `r->main->count`
          3499. 
          3500. 
          3501. static ngx_int_t
                ^
          3502. ngx_http_post_action(ngx_http_request_t *r)
          3503. {

src/http/ngx_http_request.c:3519:5: Binary operation: ([0, 3+max(64532, r->main->count)] - 1):unsigned32 by call to `ngx_http_upstream_connect` 
          3517.                    "post action: \"%V\"", &clcf->post_action);
          3518. 
          3519.     r->main->count--;
                    ^
          3520. 
          3521.     r->http_version = NGX_HTTP_VERSION_9;
