src/http/ngx_http_upstream.c:2336: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_send_response`.

src/http/ngx_http_upstream.c:2192:1: Parameter `r->uri.len`
2190. 
2191. 
2192. static void
      ^
2193. ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
2194. {

src/http/ngx_http_upstream.c:2332:9: Call
2330.     }
2331. 
2332.     if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
              ^
2333.         return;
2334.     }

src/http/ngx_http_upstream.c:2595:1: Parameter `r->uri.len`
  2593. 
  2594. 
  2595. static ngx_int_t
        ^
  2596. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2597. {

src/http/ngx_http_upstream.c:2336:5: Call
2334.     }
2335. 
2336.     ngx_http_upstream_send_response(r, u);
          ^
2337. }
2338. 

src/http/ngx_http_upstream.c:2738:1: Parameter `r->uri.len`
  2736. 
  2737. 
  2738. static void
        ^
  2739. ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2740. {

src/http/ngx_http_upstream.c:2775:13: Call
  2773. 
  2774.         if (!u->buffering) {
  2775.             ngx_http_upstream_finalize_request(r, u, rc);
                    ^
  2776.             return;
  2777.         }

src/http/ngx_http_upstream.c:4130:1: Parameter `r->uri.len`
    4128. 
    4129. 
    4130. static void
          ^
    4131. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
    4132.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:4141:9: Call
    4139.     if (u->cleanup == NULL) {
    4140.         /* the request was already finalized */
    4141.         ngx_http_finalize_request(r, NGX_DONE);
                  ^
    4142.         return;
    4143.     }

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. 
