src/http/ngx_http_upstream.c:2385: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_send_response`.

src/http/ngx_http_upstream.c:2232:1: Parameter `r->uri.len`
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->uri.len`
  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->uri.len`
  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:3171:5: Call
  3169.     r->write_event_handler = ngx_http_upstream_process_downstream;
  3170. 
  3171.     ngx_http_upstream_process_upstream(r, u);
            ^
  3172. }
  3173. 

src/http/ngx_http_upstream.c:3816:1: Parameter `r->uri.len`
    3814. 
    3815. 
    3816. static void
          ^
    3817. ngx_http_upstream_process_upstream(ngx_http_request_t *r,
    3818.     ngx_http_upstream_t *u)

src/http/ngx_http_upstream.c:3858:5: Call
    3856.     }
    3857. 
    3858.     ngx_http_upstream_process_request(r, u);
              ^
    3859. }
    3860. 

src/http/ngx_http_upstream.c:3862:1: Parameter `r->uri.len`
      3860. 
      3861. 
      3862. static void
            ^
      3863. ngx_http_upstream_process_request(ngx_http_request_t *r,
      3864.     ngx_http_upstream_t *u)

src/http/ngx_http_upstream.c:3965:13: Call
      3963. 
      3964.         if (!u->cacheable && !u->store && u->peer.connection) {
      3965.             ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
                        ^
      3966.         }
      3967.     }

src/http/ngx_http_upstream.c:4224:1: Parameter `r->uri.len`
        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->uri.len`
          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:2375:38: Call
          2373.         c->write->handler = ngx_http_request_handler;
          2374. 
          2375.         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
                                                     ^
          2376.         return;
          2377.     }

src/http/ngx_http_special_response.c:415:1: Parameter `r->uri.len`
            413. 
            414. 
            415. ngx_int_t
                 ^
            416. ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
            417. {

src/http/ngx_http_special_response.c:466:24: Call
            464.         for (i = 0; i < clcf->error_pages->nelts; i++) {
            465.             if (err_page[i].status == error) {
            466.                 return ngx_http_send_error_page(r, &err_page[i]);
                                        ^
            467.             }
            468.         }

src/http/ngx_http_special_response.c:583:1: Parameter `r->uri.len`
              581. 
              582. 
              583. static ngx_int_t
                   ^
              584. ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)
              585. {

src/http/ngx_http_special_response.c:619:16: Call
              617.         }
              618. 
              619.         return ngx_http_internal_redirect(r, &uri, &args);
                                  ^
              620.     }
              621. 

src/http/ngx_http_core_module.c:2395:1: Parameter `r->uri.len`
                2393. 
                2394. 
                2395. ngx_int_t
                      ^
                2396. ngx_http_internal_redirect(ngx_http_request_t *r,
                2397.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2425:5: Call
                2423.                    "internal redirect: \"%V?%V\"", uri, &r->args);
                2424. 
                2425.     ngx_http_set_exten(r);
                          ^
                2426. 
                2427.     /* clear the modules contexts */

src/http/ngx_http_core_module.c:1557:1: <LHS trace>
1555. 
1556. 
1557. void
      ^
1558. ngx_http_set_exten(ngx_http_request_t *r)
1559. {

src/http/ngx_http_core_module.c:1557:1: Parameter `r->uri.len`
                  1555. 
                  1556. 
                  1557. void
                        ^
                  1558. ngx_http_set_exten(ngx_http_request_t *r)
                  1559. {

src/http/ngx_http_core_module.c:1564:10: Binary operation: ([0, r->uri.len] - 1):unsigned64 by call to `ngx_http_upstream_send_response` 
                  1562.     ngx_str_null(&r->exten);
                  1563. 
                  1564.     for (i = r->uri.len - 1; i > 1; i--) {
                                 ^
                  1565.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
                  1566. 
