avoid use after free

ok florian@

diff --git a/sbin/unwind/frontend.c b/sbin/unwind/frontend.c
index 20061e6..3bc7b48 100644 (file)
--- a/sbin/unwind/frontend.c
+++ b/sbin/unwind/frontend.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: frontend.c,v 1.77 2023/02/08 08:01:25 tb Exp $        */
+/*     $OpenBSD: frontend.c,v 1.78 2023/04/30 23:46:52 jsg Exp $       */
 
 /*
  * Copyright (c) 2018 Florian Obser <florian@openbsd.org>
@@ -1747,6 +1747,7 @@ tcp_response(int fd, short events, void *arg)
                if (errno == EAGAIN || errno == EINTR)
                        return;
                free_pending_query(pq);
+               return;
        }
        sldns_buffer_skip(pq->abuf, n);
        if (sldns_buffer_remaining(pq->abuf) == 0)