From b9855b51bff2346127f1ff80c541cb43089ff608 Mon Sep 17 00:00:00 2001
From: Eric Blankenhorn <eric@wolfssl.com>
Date: Tue, 7 Jul 2020 17:41:06 -0500
Subject: [PATCH] Sanity check in DoTls13HandShakeMsgType

---
 src/tls13.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tls13.c b/src/tls13.c
index 7507e417a..a46c5bc43 100644
--- a/src/tls13.c
+++ b/src/tls13.c
@@ -7032,7 +7032,7 @@ int DoTls13HandShakeMsgType(WOLFSSL* ssl, byte* input, word32* inOutIdx,
         if (ssl->options.resuming || !IsAtLeastTLSv1_2(ssl) ||
                                                IsAtLeastTLSv1_3(ssl->version)) {
             ssl->options.cacheMessages = 0;
-            if (ssl->hsHashes->messages != NULL) {
+            if ((ssl->hsHashes != NULL) && (ssl->hsHashes->messages != NULL)) {
                 XFREE(ssl->hsHashes->messages, ssl->heap, DYNAMIC_TYPE_HASHES);
                 ssl->hsHashes->messages = NULL;
             }