src/http/modules/ngx_http_proxy_module.c:694: error: Integer Overflow L2
  ([0, +oo] - 5):unsigned64 by call to `ngx_parse_url`.

src/http/modules/ngx_http_proxy_module.c:653:9: Call
651.     ngx_http_upstream_t  *u;
652. 
653.     if (ngx_http_script_run(r, &proxy, plcf->proxy_lengths->elts, 0,
             ^
654.                             plcf->proxy_values->elts)
655.         == NULL)

src/http/ngx_http_script.c:384:1: Parameter `len`
  382. 
  383. 
  384. u_char *
       ^
  385. ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
  386.     void *code_lengths, size_t len, void *code_values)

src/http/ngx_http_script.c:415:5: Assignment
  413. 
  414. 
  415.     value->len = len;
           ^
  416.     value->data = ngx_pnalloc(r->pool, len);
  417.     if (value->data == NULL) {

src/http/modules/ngx_http_proxy_module.c:688:5: Assignment
686.     ngx_memzero(&url, sizeof(ngx_url_t));
687. 
688.     url.url.len = proxy.len - add;
         ^
689.     url.url.data = proxy.data + add;
690.     url.default_port = port;

src/http/modules/ngx_http_proxy_module.c:694:9: Call
692.     url.no_resolve = 1;
693. 
694.     if (ngx_parse_url(r->pool, &url) != NGX_OK) {
             ^
695.         if (url.err) {
696.             ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,

src/core/ngx_inet.c:285:1: Parameter `u->url.len`
  283. 
  284. 
  285. ngx_int_t
       ^
  286. ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u)
  287. {

src/core/ngx_inet.c:293:16: Call
  291. 
  292.     if (ngx_strncasecmp(p, (u_char *) "unix:", 5) == 0) {
  293.         return ngx_parse_unix_domain_url(pool, u);
                      ^
  294.     }
  295. 

src/core/ngx_inet.c:309:1: <LHS trace>
307. 
308. 
309. static ngx_int_t
     ^
310. ngx_parse_unix_domain_url(ngx_pool_t *pool, ngx_url_t *u)
311. {

src/core/ngx_inet.c:309:1: Parameter `u->url.len`
    307. 
    308. 
    309. static ngx_int_t
         ^
    310. ngx_parse_unix_domain_url(ngx_pool_t *pool, ngx_url_t *u)
    311. {

src/core/ngx_inet.c:317:5: Assignment
    315.     struct sockaddr_un  *saun;
    316. 
    317.     len = u->url.len;
             ^
    318.     path = u->url.data;
    319. 

src/core/ngx_inet.c:321:5: Binary operation: ([0, +oo] - 5):unsigned64 by call to `ngx_parse_url` 
    319. 
    320.     path += 5;
    321.     len -= 5;
             ^
    322. 
    323.     if (u->uri_part) {
