src/http/modules/ngx_http_memcached_module.c:224: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_init`.

src/http/modules/ngx_http_memcached_module.c:168:1: Parameter `r->uri.len`
166. 
167. 
168. static ngx_int_t
     ^
169. ngx_http_memcached_handler(ngx_http_request_t *r)
170. {

src/http/modules/ngx_http_memcached_module.c:190:9: Call
188.     }
189. 
190.     if (ngx_http_upstream_create(r) != NGX_OK) {
             ^
191.         return NGX_HTTP_INTERNAL_SERVER_ERROR;
192.     }

src/http/ngx_http_upstream.c:468:1: Parameter `r->uri.len`
  466. 
  467. 
  468. ngx_int_t
       ^
  469. ngx_http_upstream_create(ngx_http_request_t *r)
  470. {

src/http/modules/ngx_http_memcached_module.c:224:5: Call
222.     r->main->count++;
223. 
224.     ngx_http_upstream_init(r);
         ^
225. 
226.     return NGX_DONE;

src/http/ngx_http_upstream.c:501:1: Parameter `r->uri.len`
  499. 
  500. 
  501. void
       ^
  502. ngx_http_upstream_init(ngx_http_request_t *r)
  503. {

src/http/ngx_http_upstream.c:528:17: Call
  526.                 == NGX_ERROR)
  527.             {
  528.                 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
                       ^
  529.                 return;
  530.             }

src/http/ngx_http_request.c:2307:1: Parameter `r->uri.len`
    2305. 
    2306. 
    2307. void
          ^
    2308. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
    2309. {

src/http/ngx_http_request.c:2375:38: Call
    2373.         c->write->handler = ngx_http_request_handler;
    2374. 
    2375.         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
                                               ^
    2376.         return;
    2377.     }

src/http/ngx_http_special_response.c:415:1: Parameter `r->uri.len`
      413. 
      414. 
      415. ngx_int_t
           ^
      416. ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
      417. {

src/http/ngx_http_special_response.c:466:24: Call
      464.         for (i = 0; i < clcf->error_pages->nelts; i++) {
      465.             if (err_page[i].status == error) {
      466.                 return ngx_http_send_error_page(r, &err_page[i]);
                                  ^
      467.             }
      468.         }

src/http/ngx_http_special_response.c:583:1: Parameter `r->uri.len`
        581. 
        582. 
        583. static ngx_int_t
             ^
        584. ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)
        585. {

src/http/ngx_http_special_response.c:619:16: Call
        617.         }
        618. 
        619.         return ngx_http_internal_redirect(r, &uri, &args);
                            ^
        620.     }
        621. 

src/http/ngx_http_core_module.c:2378:1: Parameter `r->uri.len`
          2376. 
          2377. 
          2378. ngx_int_t
                ^
          2379. ngx_http_internal_redirect(ngx_http_request_t *r,
          2380.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2408:5: Call
          2406.                    "internal redirect: \"%V?%V\"", uri, &r->args);
          2407. 
          2408.     ngx_http_set_exten(r);
                    ^
          2409. 
          2410.     /* clear the modules contexts */

src/http/ngx_http_core_module.c:1550:1: <LHS trace>
1548. 
1549. 
1550. void
      ^
1551. ngx_http_set_exten(ngx_http_request_t *r)
1552. {

src/http/ngx_http_core_module.c:1550:1: Parameter `r->uri.len`
            1548. 
            1549. 
            1550. void
                  ^
            1551. ngx_http_set_exten(ngx_http_request_t *r)
            1552. {

src/http/ngx_http_core_module.c:1557:10: Binary operation: ([0, r->uri.len] - 1):unsigned64 by call to `ngx_http_upstream_init` 
            1555.     ngx_str_null(&r->exten);
            1556. 
            1557.     for (i = r->uri.len - 1; i > 1; i--) {
                           ^
            1558.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
            1559. 
