src/http/ngx_http_core_module.c:4879: error: Integer Overflow L2
  ([0, +oo] - 5):unsigned64.

src/http/ngx_http_core_module.c:4892:17: <LHS trace>
4890.             }
4891. 
4892.             if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
                      ^
4893.                 return NGX_CONF_ERROR;
4894.             }

src/http/ngx_http_core_module.c:4892:17: Call
4890.             }
4891. 
4892.             if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
                      ^
4893.                 return NGX_CONF_ERROR;
4894.             }

src/http/ngx_http_script.c:107:1: Parameter `ccv->value->len`
  105. 
  106. 
  107. ngx_int_t
       ^
  108. ngx_http_compile_complex_value(ngx_http_compile_complex_value_t *ccv)
  109. {

src/http/ngx_http_core_module.c:4879:13: Binary operation: ([0, +oo] - 5):unsigned64
4877. 
4878.         if (ngx_strncmp(value[i].data, "from=", 5) == 0) {
4879.             value[i].len -= 5;
                  ^
4880.             value[i].data += 5;
4881. 
