fix use after free

ok tb@

diff --git a/usr.sbin/relayd/config.c b/usr.sbin/relayd/config.c
index d982f35..a2f1c13 100644 (file)
--- a/usr.sbin/relayd/config.c
+++ b/usr.sbin/relayd/config.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: config.c,v 1.42 2021/07/14 13:33:57 kn Exp $  */
+/*     $OpenBSD: config.c,v 1.43 2021/12/05 13:48:14 jsg Exp $ */
 
 /*
  * Copyright (c) 2011 - 2014 Reyk Floeter <reyk@openbsd.org>
@@ -192,13 +192,13 @@ config_purge(struct relayd *env, u_int reset)
                        TAILQ_REMOVE(env->sc_protos, proto, entry);
                        free(proto->style);
                        free(proto->tlscapass);
-                       free(proto);
                        while ((keyname =
                            TAILQ_FIRST(&proto->tlscerts)) != NULL) {
                                TAILQ_REMOVE(&proto->tlscerts, keyname, entry);
                                free(keyname->name);
                                free(keyname);
                        }
+                       free(proto);
                }
                env->sc_protocount = 0;
        }