From a44751cd392b0ab9c5ff8d4dd929dc8bff70ccb3 Mon Sep 17 00:00:00 2001
From: Sean Parkinson <sean@wolfssl.com>
Date: Tue, 26 Feb 2019 08:27:59 +1000
Subject: [PATCH] PKCS #11 use private key id double free issue fixed

---
 src/ssl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ssl.c b/src/ssl.c
index 9eb2597f4..a679e4747 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -11324,7 +11324,8 @@ int wolfSSL_set_compression(WOLFSSL* ssl)
     {
         int ret = WOLFSSL_FAILURE;
 
-        FreeDer(&ssl->buffers.key);
+        if (ssl->buffers.weOwnKey)
+            FreeDer(&ssl->buffers.key);
         if (AllocDer(&ssl->buffers.key, (word32)sz, PRIVATEKEY_TYPE,
                                                             ssl->heap) == 0) {
             XMEMCPY(ssl->buffers.key->buffer, id, sz);