From 229cecfb610c93934a51fc65c6bb4a5a2aad5444 Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Mon, 30 Oct 2017 09:49:08 -0700
Subject: [PATCH] Fix static memory failure case (insuficient mem) in InitSSL
 case where `ssl->ctx` isn't set yet and `SSL_ResourceFree` is called NULL
 dereferece happens.

---
 src/internal.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/internal.c b/src/internal.c
index a67810fc3..22067077a 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -4864,9 +4864,10 @@ void SSL_ResourceFree(WOLFSSL* ssl)
 
         /* check if tracking stats */
         if (ctx_heap->flag & WOLFMEM_TRACK_STATS) {
-            XFREE(ssl_hint->stats, ssl->heap, DYNAMIC_TYPE_SSL);
+            XFREE(ssl_hint->stats, ssl->ctx ? ssl->ctx->heap : NULL,
+                                                            DYNAMIC_TYPE_SSL);
         }
-        XFREE(ssl->heap, ssl->heap, DYNAMIC_TYPE_SSL);
+        XFREE(ssl->heap, ssl->ctx ? ssl->ctx->heap : NULL, DYNAMIC_TYPE_SSL);
     #ifdef WOLFSSL_HEAP_TEST
     }
     #endif