From 1d8b4eb2b478651f820423789d7a91b9b4c2d009 Mon Sep 17 00:00:00 2001
From: mmiyashita <mmiyashita@users.noreply.github.com>
Date: Tue, 21 Jun 2016 11:01:30 -0700
Subject: [PATCH] segmentation fault with 'openssl s_client -prexit
 -keymatexport'

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1243)
---
 apps/s_client.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/apps/s_client.c b/apps/s_client.c
index 41fed85ea0..56a7081cab 100644
--- a/apps/s_client.c
+++ b/apps/s_client.c
@@ -2633,7 +2633,8 @@ static void print_stuff(BIO *bio, SSL *s, int full)
 #endif
 
     SSL_SESSION_print(bio, SSL_get_session(s));
-    if (keymatexportlabel != NULL) {
+    if ((SSL_get_session(s) != NULL) &&
+        (keymatexportlabel != NULL)) {
         BIO_printf(bio, "Keying material exporter:\n");
         BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
         BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
-- 
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