src/http/ngx_http_upstream.c:1709: error: Integer Overflow L2
  ([0, `r->main->count` + 8] - 1):unsigned32 by call to `ngx_http_upstream_process_body_in_memory`.

src/http/ngx_http_upstream.c:1527:1: Parameter `r->main->count`
1525. 
1526. 
1527. static void
      ^
1528. ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
1529. {

src/http/ngx_http_upstream.c:1667:9: Call
1665.     }
1666. 
1667.     if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
              ^
1668.         return;
1669.     }

src/http/ngx_http_upstream.c:1881:1: Parameter `r->main->count`
  1879. 
  1880. 
  1881. static ngx_int_t
        ^
  1882. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
  1883. {

src/http/ngx_http_upstream.c:1709:5: Call
1707.     u->read_event_handler = ngx_http_upstream_process_body_in_memory;
1708. 
1709.     ngx_http_upstream_process_body_in_memory(r, u);
          ^
1710. }
1711. 

src/http/ngx_http_upstream.c:2003:1: Parameter `r->main->count`
  2001. 
  2002. 
  2003. static void
        ^
  2004. ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
  2005.     ngx_http_upstream_t *u)

src/http/ngx_http_upstream.c:2021:9: Call
  2019.     if (rev->timedout) {
  2020.         ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
  2021.         ngx_http_upstream_finalize_request(r, u, NGX_HTTP_GATEWAY_TIME_OUT);
                ^
  2022.         return;
  2023.     }

src/http/ngx_http_upstream.c:3296:1: Parameter `r->main->count`
    3294. 
    3295. 
    3296. static void
          ^
    3297. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
    3298.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:3425:9: Call
    3423. 
    3424.     if (r->header_only) {
    3425.         ngx_http_finalize_request(r, rc);
                  ^
    3426.         return;
    3427.     }

src/http/ngx_http_request.c:2198:1: Parameter `r->main->count`
      2196. 
      2197. 
      2198. void
            ^
      2199. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
      2200. {

src/http/ngx_http_request.c:2236:13: Call
      2234.         || c->error)
      2235.     {
      2236.         if (ngx_http_post_action(r) == NGX_OK) {
                        ^
      2237.             return;
      2238.         }

src/http/ngx_http_request.c:3256:1: <LHS trace>
3254. 
3255. 
3256. static ngx_int_t
      ^
3257. ngx_http_post_action(ngx_http_request_t *r)
3258. {

src/http/ngx_http_request.c:3256:1: Parameter `r->main->count`
        3254. 
        3255. 
        3256. static ngx_int_t
              ^
        3257. ngx_http_post_action(ngx_http_request_t *r)
        3258. {

src/http/ngx_http_request.c:3274:5: Binary operation: ([0, r->main->count + 8] - 1):unsigned32 by call to `ngx_http_upstream_process_body_in_memory` 
        3272.                    "post action: \"%V\"", &clcf->post_action);
        3273. 
        3274.     r->main->count--;
                  ^
        3275. 
        3276.     r->http_version = NGX_HTTP_VERSION_9;
