src/http/ngx_http_upstream.c:1986: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_send_response`.

src/http/ngx_http_upstream.c:1840:1: Parameter `r->uri.len`
1838. 
1839. 
1840. static void
      ^
1841. ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
1842. {

src/http/ngx_http_upstream.c:1981:9: Call
1979.     }
1980. 
1981.     if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
              ^
1982.         return;
1983.     }

src/http/ngx_http_upstream.c:2245:1: Parameter `r->uri.len`
  2243. 
  2244. 
  2245. static ngx_int_t
        ^
  2246. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2247. {

src/http/ngx_http_upstream.c:1986:9: Call
1984. 
1985.     if (!r->subrequest_in_memory) {
1986.         ngx_http_upstream_send_response(r, u);
              ^
1987.         return;
1988.     }

src/http/ngx_http_upstream.c:2464:1: Parameter `r->uri.len`
  2462. 
  2463. 
  2464. static void
        ^
  2465. ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2466. {

src/http/ngx_http_upstream.c:2477:9: Call
  2475. 
  2476.     if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
  2477.         ngx_http_upstream_finalize_request(r, u, rc);
                ^
  2478.         return;
  2479.     }

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:3756:9: Call
    3754.     if (u->cleanup == NULL) {
    3755.         /* the request was already finalized */
    3756.         ngx_http_finalize_request(r, NGX_DONE);
                  ^
    3757.         return;
    3758.     }

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_send_response` 
              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. 
