From 46b3beeccd3c9c3093ae90896563fbef4ff33807 Mon Sep 17 00:00:00 2001
From: Kareem Abuobeid <kareem@wolfssl.com>
Date: Mon, 15 Mar 2021 16:15:21 -0700
Subject: [PATCH] Fix missing NULL check in FreeSuites(), with OPENSSL_ALL
 enabled, this was causing a segfault in when freeing a WOLFSSL object created
 with wolfSSL_write_dup().

---
 src/internal.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/internal.c b/src/internal.c
index 0b07103af..beed2693d 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -6361,7 +6361,9 @@ void FreeSuites(WOLFSSL* ssl)
 #endif
     {
     #ifdef OPENSSL_ALL
-        wolfSSL_sk_SSL_CIPHER_free(ssl->suites->stack);
+        if (ssl->suites != NULL) {
+            wolfSSL_sk_SSL_CIPHER_free(ssl->suites->stack);
+        }
     #endif
         XFREE(ssl->suites, ssl->heap, DYNAMIC_TYPE_SUITES);
     }