src/http/ngx_http_core_module.c:1311: error: Integer Overflow L2
  ([0, -1+max(1, `r->uri_changes`)] - 1):unsigned32 by call to `ngx_http_finalize_request`.

src/http/ngx_http_core_module.c:1176:1: Parameter `r->uri_changes`
1174. 
1175. 
1176. ngx_int_t
      ^
1177. ngx_http_core_try_files_phase(ngx_http_request_t *r,
1178.     ngx_http_phase_handler_t *ph)

src/http/ngx_http_core_module.c:1303:24: Call
1301. 
1302.             if (path.data[0] == '@') {
1303.                 (void) ngx_http_named_location(r, &path);
                             ^
1304. 
1305.             } else {

src/http/ngx_http_core_module.c:2551:1: Parameter `r->uri_changes`
  2549. 
  2550. 
  2551. ngx_int_t
        ^
  2552. ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name)
  2553. {

src/http/ngx_http_core_module.c:2559:5: Assignment
  2557. 
  2558.     r->main->count++;
  2559.     r->uri_changes--;
            ^
  2560. 
  2561.     if (r->uri_changes == 0) {

src/http/ngx_http_core_module.c:1311:13: Call
1309.             }
1310. 
1311.             ngx_http_finalize_request(r, NGX_DONE);
                  ^
1312.             return NGX_OK;
1313.         }

src/http/ngx_http_request.c:1916:1: Parameter `r->uri_changes`
  1914. 
  1915. 
  1916. void
        ^
  1917. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
  1918. {

src/http/ngx_http_request.c:2088:9: Call
  2086.     }
  2087. 
  2088.     if (ngx_http_post_action(r) == NGX_OK) {
                ^
  2089.         return;
  2090.     }

src/http/ngx_http_request.c:2924:1: Parameter `r->uri_changes`
    2922. 
    2923. 
    2924. static ngx_int_t
          ^
    2925. ngx_http_post_action(ngx_http_request_t *r)
    2926. {

src/http/ngx_http_request.c:2951:9: Call
    2949. 
    2950.     if (clcf->post_action.data[0] == '/') {
    2951.         ngx_http_internal_redirect(r, &clcf->post_action, NULL);
                  ^
    2952. 
    2953.     } else {

src/http/ngx_http_core_module.c:2496:1: <LHS trace>
2494. 
2495. 
2496. ngx_int_t
      ^
2497. ngx_http_internal_redirect(ngx_http_request_t *r,
2498.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2496:1: Parameter `r->uri_changes`
      2494. 
      2495. 
      2496. ngx_int_t
            ^
      2497. ngx_http_internal_redirect(ngx_http_request_t *r,
      2498.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2502:5: Binary operation: ([0, -1+max(1, r->uri_changes)] - 1):unsigned32 by call to `ngx_http_finalize_request` 
      2500.     ngx_http_core_srv_conf_t  *cscf;
      2501. 
      2502.     r->uri_changes--;
                ^
      2503. 
      2504.     if (r->uri_changes == 0) {
