src/http/ngx_http_upstream.c:2376: error: Integer Overflow L2
  ([0, `r->uri.len`] - 1):unsigned64 by call to `ngx_http_upstream_process_body_in_memory`.

src/http/ngx_http_upstream.c:2194:1: Parameter `r->uri.len`
2192. 
2193. 
2194. static void
      ^
2195. ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
2196. {

src/http/ngx_http_upstream.c:2334:9: Call
2332.     }
2333. 
2334.     if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
              ^
2335.         return;
2336.     }

src/http/ngx_http_upstream.c:2635:1: Parameter `r->uri.len`
  2633. 
  2634. 
  2635. static ngx_int_t
        ^
  2636. ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
  2637. {

src/http/ngx_http_upstream.c:2376:5: Call
2374.     u->read_event_handler = ngx_http_upstream_process_body_in_memory;
2375. 
2376.     ngx_http_upstream_process_body_in_memory(r, u);
          ^
2377. }
2378. 

src/http/ngx_http_upstream.c:2778:1: Parameter `r->uri.len`
  2776. 
  2777. 
  2778. static void
        ^
  2779. ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
  2780.     ngx_http_upstream_t *u)

src/http/ngx_http_upstream.c:2796:9: Call
  2794.     if (rev->timedout) {
  2795.         ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
  2796.         ngx_http_upstream_finalize_request(r, u, NGX_HTTP_GATEWAY_TIME_OUT);
                ^
  2797.         return;
  2798.     }

src/http/ngx_http_upstream.c:4248:1: Parameter `r->uri.len`
    4246. 
    4247. 
    4248. static void
          ^
    4249. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
    4250.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:4259:9: Call
    4257.     if (u->cleanup == NULL) {
    4258.         /* the request was already finalized */
    4259.         ngx_http_finalize_request(r, NGX_DONE);
                  ^
    4260.         return;
    4261.     }

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_process_body_in_memory` 
              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. 
