src/http/ngx_http_upstream.c:531: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_finalize_request`.

src/http/ngx_http_upstream.c:494:1: Parameter `r->uri.len`
492. 
493. 
494. static void
     ^
495. ngx_http_upstream_init_request(ngx_http_request_t *r)
496. {

src/http/ngx_http_upstream.c:517:14: Call
515.         ngx_int_t  rc;
516. 
517.         rc = ngx_http_upstream_cache(r, u);
                  ^
518. 
519.         if (rc == NGX_BUSY) {

src/http/ngx_http_upstream.c:723:1: Parameter `r->uri.len`
  721. #if (NGX_HTTP_CACHE)
  722. 
  723. static ngx_int_t
       ^
  724. ngx_http_upstream_cache(ngx_http_request_t *r, ngx_http_upstream_t *u)
  725. {

src/http/ngx_http_upstream.c:531:13: Call
529. 
530.         if (rc == NGX_ERROR) {
531.             ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
                 ^
532.             return;
533.         }

src/http/ngx_http_request.c:2252:1: Parameter `r->uri.len`
  2250. 
  2251. 
  2252. void
        ^
  2253. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
  2254. {

src/http/ngx_http_request.c:2324:38: Call
  2322.         c->write->handler = ngx_http_request_handler;
  2323. 
  2324.         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
                                             ^
  2325.         return;
  2326.     }

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:2593:1: Parameter `r->uri.len`
        2591. 
        2592. 
        2593. ngx_int_t
              ^
        2594. ngx_http_internal_redirect(ngx_http_request_t *r,
        2595.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2623:5: Call
        2621.                    "internal redirect: \"%V?%V\"", uri, &r->args);
        2622. 
        2623.     ngx_http_set_exten(r);
                  ^
        2624. 
        2625.     /* clear the modules contexts */

src/http/ngx_http_core_module.c:1794:1: <LHS trace>
1792. 
1793. 
1794. void
      ^
1795. ngx_http_set_exten(ngx_http_request_t *r)
1796. {

src/http/ngx_http_core_module.c:1794:1: Parameter `r->uri.len`
          1792. 
          1793. 
          1794. void
                ^
          1795. ngx_http_set_exten(ngx_http_request_t *r)
          1796. {

src/http/ngx_http_core_module.c:1801:10: Binary operation: ([0, r->uri.len] - 1):unsigned64 by call to `ngx_http_finalize_request` 
          1799.     ngx_str_null(&r->exten);
          1800. 
          1801.     for (i = r->uri.len - 1; i > 1; i--) {
                         ^
          1802.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
          1803. 
