src/http/ngx_http_upstream.c:2385: error: Integer Overflow L2
  ([0, `r->main->count` + 8] - 1):unsigned32 by call to `ngx_http_upstream_send_response`.

src/http/ngx_http_upstream.c:2232:1: Parameter `r->main->count`
2230. 
2231. 
2232. static void
      ^
2233. ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
2234. {

src/http/ngx_http_upstream.c:2381:9: Call
2379.     }
2380. 
2381.     if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
              ^
2382.         return;
2383.     }

src/http/ngx_http_upstream.c:2644:1: Parameter `r->main->count`
  2642. 
  2643. 
  2644. static ngx_int_t
        ^
  2645. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2646. {

src/http/ngx_http_upstream.c:2385:5: Call
2383.     }
2384. 
2385.     ngx_http_upstream_send_response(r, u);
          ^
2386. }
2387. 

src/http/ngx_http_upstream.c:2832:1: Parameter `r->main->count`
  2830. 
  2831. 
  2832. static void
        ^
  2833. ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2834. {

src/http/ngx_http_upstream.c:2844:9: Call
  2842. 
  2843.     if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
  2844.         ngx_http_upstream_finalize_request(r, u, rc);
                ^
  2845.         return;
  2846.     }

src/http/ngx_http_upstream.c:4224:1: Parameter `r->main->count`
    4222. 
    4223. 
    4224. static void
          ^
    4225. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
    4226.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:4235:9: Call
    4233.     if (u->cleanup == NULL) {
    4234.         /* the request was already finalized */
    4235.         ngx_http_finalize_request(r, NGX_DONE);
                  ^
    4236.         return;
    4237.     }

src/http/ngx_http_request.c:2307:1: Parameter `r->main->count`
      2305. 
      2306. 
      2307. void
            ^
      2308. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
      2309. {

src/http/ngx_http_request.c:2488:9: Call
      2486.     }
      2487. 
      2488.     if (ngx_http_post_action(r) == NGX_OK) {
                    ^
      2489.         return;
      2490.     }

src/http/ngx_http_request.c:3391:1: <LHS trace>
3389. 
3390. 
3391. static ngx_int_t
      ^
3392. ngx_http_post_action(ngx_http_request_t *r)
3393. {

src/http/ngx_http_request.c:3391:1: Parameter `r->main->count`
        3389. 
        3390. 
        3391. static ngx_int_t
              ^
        3392. ngx_http_post_action(ngx_http_request_t *r)
        3393. {

src/http/ngx_http_request.c:3409:5: Binary operation: ([0, r->main->count + 8] - 1):unsigned32 by call to `ngx_http_upstream_send_response` 
        3407.                    "post action: \"%V\"", &clcf->post_action);
        3408. 
        3409.     r->main->count--;
                  ^
        3410. 
        3411.     r->http_version = NGX_HTTP_VERSION_9;
