src/http/ngx_http_core_module.c:2323: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64 by call to `ngx_http_set_exten`.

src/http/ngx_http_core_module.c:2323:5: Call
2321.     sr->schema = r->schema;
2322. 
2323.     ngx_http_set_exten(sr);
          ^
2324. 
2325.     sr->main = r->main;

src/http/ngx_http_core_module.c:1557:1: <LHS trace>
1555. 
1556. 
1557. void
      ^
1558. ngx_http_set_exten(ngx_http_request_t *r)
1559. {

src/http/ngx_http_core_module.c:1557:1: Parameter `r->uri.len`
  1555. 
  1556. 
  1557. void
        ^
  1558. ngx_http_set_exten(ngx_http_request_t *r)
  1559. {

src/http/ngx_http_core_module.c:1564:10: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ngx_http_set_exten` 
  1562.     ngx_str_null(&r->exten);
  1563. 
  1564.     for (i = r->uri.len - 1; i > 1; i--) {
                 ^
  1565.         if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
  1566. 
