Avoid leaking conninfo servername.

Issue found by and fix from Shuo Chen <chenshuo at chenshuo dot com>.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib/libtls/tls_conninfo.c b/src/lib/libtls/tls_conninfo.c
index 1bf4b2285b..5cdd0f77c8 100644
--- a/src/lib/libtls/tls_conninfo.c
+++ b/src/lib/libtls/tls_conninfo.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_conninfo.c,v 1.12 2016/11/04 18:07:24 beck Exp $ */
+/* $OpenBSD: tls_conninfo.c,v 1.13 2017/01/09 15:31:20 jsing Exp $ */
 /*
  * Copyright (c) 2015 Joel Sing <jsing@openbsd.org>
  * Copyright (c) 2015 Bob Beck <beck@openbsd.org>
@@ -248,6 +248,8 @@ tls_conninfo_free(struct tls_conninfo *conninfo)
         conninfo->alpn = NULL;
         free(conninfo->cipher);
         conninfo->cipher = NULL;
+        free(conninfo->servername);
+        conninfo->servername = NULL;
         free(conninfo->version);
         conninfo->version = NULL;