src/http/ngx_http_upstream.c:2352: error: Integer Overflow L2
  ([0, `r->main->count` + 8] - 1):unsigned32 by call to `ngx_http_upstream_finalize_request`.

src/http/ngx_http_upstream.c:2194:1: Parameter `r->main->count`
2192. 
2193. 
2194. static void
      ^
2195. ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
2196. {

src/http/ngx_http_upstream.c:2334:9: Call
2332.     }
2333. 
2334.     if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
              ^
2335.         return;
2336.     }

src/http/ngx_http_upstream.c:2635:1: Parameter `r->main->count`
  2633. 
  2634. 
  2635. static ngx_int_t
        ^
  2636. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2637. {

src/http/ngx_http_upstream.c:2352:9: Call
2350. 
2351.     if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
2352.         ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
              ^
2353.         return;
2354.     }

src/http/ngx_http_upstream.c:4248:1: Parameter `r->main->count`
  4246. 
  4247. 
  4248. static void
        ^
  4249. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
  4250.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:4259:9: Call
  4257.     if (u->cleanup == NULL) {
  4258.         /* the request was already finalized */
  4259.         ngx_http_finalize_request(r, NGX_DONE);
                ^
  4260.         return;
  4261.     }

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:2345:13: Call
    2343.         || c->error)
    2344.     {
    2345.         if (ngx_http_post_action(r) == NGX_OK) {
                      ^
    2346.             return;
    2347.         }

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_finalize_request` 
      3407.                    "post action: \"%V\"", &clcf->post_action);
      3408. 
      3409.     r->main->count--;
                ^
      3410. 
      3411.     r->http_version = NGX_HTTP_VERSION_9;
