src/event/ngx_event_udp.c:623: error: Integer Overflow L2
  ([0, +oo] - 2):unsigned64 by call to `ngx_cmp_sockaddr`.

src/event/ngx_event_udp.c:623:14: Call
621.         c = udp->connection;
622. 
623.         rc = ngx_cmp_sockaddr(sockaddr, socklen,
                  ^
624.                               c->sockaddr, c->socklen, 1);
625. 

src/core/ngx_inet.c:1362:1: Parameter `sa2->sin_addr.s_addr`
  1360. 
  1361. 
  1362. ngx_int_t
        ^
  1363. ngx_cmp_sockaddr(struct sockaddr *sa1, socklen_t slen1,
  1364.     struct sockaddr *sa2, socklen_t slen2, ngx_uint_t cmp_port)

src/event/ngx_event_udp.c:623:14: Call
621.         c = udp->connection;
622. 
623.         rc = ngx_cmp_sockaddr(sockaddr, socklen,
                  ^
624.                               c->sockaddr, c->socklen, 1);
625. 

src/core/ngx_inet.c:1362:1: <LHS trace>
1360. 
1361. 
1362. ngx_int_t
      ^
1363. ngx_cmp_sockaddr(struct sockaddr *sa1, socklen_t slen1,
1364.     struct sockaddr *sa2, socklen_t slen2, ngx_uint_t cmp_port)

src/core/ngx_inet.c:1362:1: Parameter `slen2`
  1360. 
  1361. 
  1362. ngx_int_t
        ^
  1363. ngx_cmp_sockaddr(struct sockaddr *sa1, socklen_t slen1,
  1364.     struct sockaddr *sa2, socklen_t slen2, ngx_uint_t cmp_port)

src/core/ngx_inet.c:1408:13: Binary operation: ([0, +oo] - 2):unsigned64 by call to `ngx_cmp_sockaddr` 
  1406. 
  1407.         } else {
  1408.             len = slen2 - offsetof(struct sockaddr_un, sun_path);
                    ^
  1409.         }
  1410. 
