src/http/ngx_http_upstream.c:3696: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_finalize_request`.

src/http/ngx_http_upstream.c:3602:1: Parameter `r->uri.len`
3600. 
3601. 
3602. static void
      ^
3603. ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
3604.     ngx_uint_t ft_type)

src/http/ngx_http_upstream.c:3696:17: Call
3694.                 }
3695. 
3696.                 ngx_http_upstream_finalize_request(r, u, rc);
                      ^
3697.                 return;
3698.             }

src/http/ngx_http_upstream.c:3744:1: Parameter `r->uri.len`
  3742. 
  3743. 
  3744. static void
        ^
  3745. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
  3746.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:3887:9: Call
  3885. 
  3886.     if (r->header_only) {
  3887.         ngx_http_finalize_request(r, rc);
                ^
  3888.         return;
  3889.     }

src/http/ngx_http_request.c:2249:1: Parameter `r->uri.len`
    2247. 
    2248. 
    2249. void
          ^
    2250. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
    2251. {

src/http/ngx_http_request.c:2321:38: Call
    2319.         c->write->handler = ngx_http_request_handler;
    2320. 
    2321.         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
                                               ^
    2322.         return;
    2323.     }

src/http/ngx_http_special_response.c:365:1: Parameter `r->uri.len`
      363. 
      364. 
      365. ngx_int_t
           ^
      366. ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
      367. {

src/http/ngx_http_special_response.c:416:24: Call
      414.         for (i = 0; i < clcf->error_pages->nelts; i++) {
      415.             if (err_page[i].status == error) {
      416.                 return ngx_http_send_error_page(r, &err_page[i]);
                                  ^
      417.             }
      418.         }

src/http/ngx_http_special_response.c:534:1: Parameter `r->uri.len`
        532. 
        533. 
        534. static ngx_int_t
             ^
        535. ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)
        536. {

src/http/ngx_http_special_response.c:570:16: Call
        568.         }
        569. 
        570.         return ngx_http_internal_redirect(r, &uri, &args);
                            ^
        571.     }
        572. 

src/http/ngx_http_core_module.c:2581:1: Parameter `r->uri.len`
          2579. 
          2580. 
          2581. ngx_int_t
                ^
          2582. ngx_http_internal_redirect(ngx_http_request_t *r,
          2583.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2611:5: Call
          2609.                    "internal redirect: \"%V?%V\"", uri, &r->args);
          2610. 
          2611.     ngx_http_set_exten(r);
                    ^
          2612. 
          2613.     /* clear the modules contexts */

src/http/ngx_http_core_module.c:1778:1: <LHS trace>
1776. 
1777. 
1778. void
      ^
1779. ngx_http_set_exten(ngx_http_request_t *r)
1780. {

src/http/ngx_http_core_module.c:1778:1: Parameter `r->uri.len`
            1776. 
            1777. 
            1778. void
                  ^
            1779. ngx_http_set_exten(ngx_http_request_t *r)
            1780. {

src/http/ngx_http_core_module.c:1785:10: Binary operation: ([0, r->uri.len] - 1):unsigned64 by call to `ngx_http_upstream_finalize_request` 
            1783.     ngx_str_null(&r->exten);
            1784. 
            1785.     for (i = r->uri.len - 1; i > 1; i--) {
                           ^
            1786.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
            1787. 
