src/http/ngx_http_upstream.c:3488: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_finalize_request`.

src/http/ngx_http_upstream.c:3398:1: Parameter `r->uri.len`
3396. 
3397. 
3398. static void
      ^
3399. ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
3400.     ngx_uint_t ft_type)

src/http/ngx_http_upstream.c:3488:17: Call
3486.                 }
3487. 
3488.                 ngx_http_upstream_finalize_request(r, u, rc);
                      ^
3489.                 return;
3490.             }

src/http/ngx_http_upstream.c:3536:1: Parameter `r->uri.len`
  3534. 
  3535. 
  3536. static void
        ^
  3537. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
  3538.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:3663:9: Call
  3661.         || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST)
  3662.     {
  3663.         ngx_http_finalize_request(r, rc);
                ^
  3664.         return;
  3665.     }

src/http/ngx_http_request.c:2251:1: Parameter `r->uri.len`
    2249. 
    2250. 
    2251. void
          ^
    2252. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
    2253. {

src/http/ngx_http_request.c:2323:38: Call
    2321.         c->write->handler = ngx_http_request_handler;
    2322. 
    2323.         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
                                               ^
    2324.         return;
    2325.     }

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:2561:1: Parameter `r->uri.len`
          2559. 
          2560. 
          2561. ngx_int_t
                ^
          2562. ngx_http_internal_redirect(ngx_http_request_t *r,
          2563.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2591:5: Call
          2589.                    "internal redirect: \"%V?%V\"", uri, &r->args);
          2590. 
          2591.     ngx_http_set_exten(r);
                    ^
          2592. 
          2593.     /* clear the modules contexts */

src/http/ngx_http_core_module.c:1797:1: <LHS trace>
1795. 
1796. 
1797. void
      ^
1798. ngx_http_set_exten(ngx_http_request_t *r)
1799. {

src/http/ngx_http_core_module.c:1797:1: Parameter `r->uri.len`
            1795. 
            1796. 
            1797. void
                  ^
            1798. ngx_http_set_exten(ngx_http_request_t *r)
            1799. {

src/http/ngx_http_core_module.c:1804:10: Binary operation: ([0, r->uri.len] - 1):unsigned64 by call to `ngx_http_upstream_finalize_request` 
            1802.     ngx_str_null(&r->exten);
            1803. 
            1804.     for (i = r->uri.len - 1; i > 1; i--) {
                           ^
            1805.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
            1806. 
