src/http/ngx_http_request.c:980: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64 by call to `ngx_http_finalize_request`.

src/http/ngx_http_request.c:967:22: Call
965.             if (r->header_in->pos == r->header_in->end) {
966. 
967.                 rv = ngx_http_alloc_large_header_buffer(r, 0);
                          ^
968. 
969.                 if (rv == NGX_ERROR) {

src/http/ngx_http_request.c:1165:1: Parameter `*r->header_in->pos`
  1163. 
  1164. 
  1165. static ngx_int_t
        ^
  1166. ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
  1167.     ngx_uint_t request_line)

src/http/ngx_http_request.c:980:25: Call
978.                         ngx_log_error(NGX_LOG_INFO, c->log, 0,
979.                                       "client sent too large request");
980.                         ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
                             ^
981.                         return;
982.                     }

src/http/ngx_http_request.c:1856:1: Parameter `r->uri.len`
  1854. 
  1855. 
  1856. void
        ^
  1857. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
  1858. {

src/http/ngx_http_request.c:1929:38: Call
  1927.         c->write->handler = ngx_http_request_handler;
  1928. 
  1929.         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
                                             ^
  1930.         return;
  1931.     }

src/http/ngx_http_special_response.c:341:1: Parameter `r->uri.len`
    339. 
    340. 
    341. ngx_int_t
         ^
    342. ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
    343. {

src/http/ngx_http_special_response.c:391:24: Call
    389.         for (i = 0; i < clcf->error_pages->nelts; i++) {
    390.             if (err_page[i].status == error) {
    391.                 return ngx_http_send_error_page(r, &err_page[i]);
                                ^
    392.             }
    393.         }

src/http/ngx_http_special_response.c:512:1: Parameter `r->uri.len`
      510. 
      511. 
      512. static ngx_int_t
           ^
      513. ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)
      514. {

src/http/ngx_http_special_response.c:546:16: Call
      544.         }
      545. 
      546.         return ngx_http_internal_redirect(r, &uri, &args);
                          ^
      547.     }
      548. 

src/http/ngx_http_core_module.c:2275:1: Parameter `r->uri.len`
        2273. 
        2274. 
        2275. ngx_int_t
              ^
        2276. ngx_http_internal_redirect(ngx_http_request_t *r,
        2277.     ngx_str_t *uri, ngx_str_t *args)

src/http/ngx_http_core_module.c:2305:5: Call
        2303.                    "internal redirect: \"%V?%V\"", uri, &r->args);
        2304. 
        2305.     ngx_http_set_exten(r);
                  ^
        2306. 
        2307.     /* clear the modules contexts */

src/http/ngx_http_core_module.c:1715:1: <LHS trace>
1713. 
1714. 
1715. void
      ^
1716. ngx_http_set_exten(ngx_http_request_t *r)
1717. {

src/http/ngx_http_core_module.c:1715:1: Parameter `r->uri.len`
          1713. 
          1714. 
          1715. void
                ^
          1716. ngx_http_set_exten(ngx_http_request_t *r)
          1717. {

src/http/ngx_http_core_module.c:1722:10: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ngx_http_finalize_request` 
          1720.     ngx_str_null(&r->exten);
          1721. 
          1722.     for (i = r->uri.len - 1; i > 1; i--) {
                         ^
          1723.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
          1724. 
