src/http/ngx_http_upstream.c:2160: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_finalize_request`.

src/http/ngx_http_upstream.c:2123:1: Parameter `r->uri.len`
2121. 
2122. 
2123. static ngx_int_t
      ^
2124. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
2125. {

src/http/ngx_http_upstream.c:2138:9: Call
2136.         && !(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT))
2137.     {
2138.         ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
              ^
2139. 
2140.         part = &u->headers_in.headers.part;

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:2160:21: Call
2158.             if (hh && hh->redirect) {
2159.                 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
2160.                     ngx_http_finalize_request(r,
                          ^
2161.                                               NGX_HTTP_INTERNAL_SERVER_ERROR);
2162.                     return NGX_DONE;

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_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. 
