From de1ee91863ea2c375c023a2aeaa87d3c8b0aface Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Thu, 17 Nov 2016 09:24:56 -0800
Subject: [PATCH 1/2] Fix memory leak issue with WOLFSSL_SMALL_STACK defined
 and using TI hardware accelerated hashing.

---
 wolfcrypt/src/port/ti/ti-hash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wolfcrypt/src/port/ti/ti-hash.c b/wolfcrypt/src/port/ti/ti-hash.c
index 7ca795b91..cb096ebe6 100644
--- a/wolfcrypt/src/port/ti/ti-hash.c
+++ b/wolfcrypt/src/port/ti/ti-hash.c
@@ -146,7 +146,7 @@ static int hashHash(const byte* data, word32 len, byte* hash, word32 algo, word3
     }
 
 #ifdef WOLFSSL_SMALL_STACK
-    XFREE(hash, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+    XFREE(hash_desc, NULL, DYNAMIC_TYPE_TMP_BUFFER);
 #endif
 
     return ret;

From b01952ea4057fabfd902a83681226d10869eda05 Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Thu, 17 Nov 2016 09:34:31 -0800
Subject: [PATCH 2/2] Cleanup the hash free in FreeHandshakeResources.

---
 src/internal.c | 29 +++++++++--------------------
 1 file changed, 9 insertions(+), 20 deletions(-)

diff --git a/src/internal.c b/src/internal.c
index 02374e2dc..ec1efb283 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -3755,30 +3755,19 @@ void SSL_ResourceFree(WOLFSSL* ssl)
 #endif /* WOLFSSL_STATIC_MEMORY */
 }
 
-#ifdef WOLFSSL_TI_HASH
-static void HashFinal(WOLFSSL * ssl) {
-    byte dummyHash[32] ;
-#ifndef NO_MD5
-    wc_Md5Final(&(ssl->hsHashes->hashMd5), dummyHash) ;
-#endif
-#ifndef NO_SHA
-    wc_ShaFinal(&(ssl->hsHashes->hashSha), dummyHash) ;
-#endif
-#ifndef NO_SHA256
-    wc_Sha256Final(&(ssl->hsHashes->hashSha256), dummyHash) ;
-#endif
-}
-#else
-
-    #define HashFinal(ssl)
-
-#endif /* WOLFSSL_TI_HASH */
-
 /* Free any handshake resources no longer needed */
 void FreeHandshakeResources(WOLFSSL* ssl)
 {
+#ifndef NO_MD5
+    wc_Md5Free(&ssl->hsHashes->hashMd5);
+#endif
+#ifndef NO_SHA
+    wc_ShaFree(&ssl->hsHashes->hashSha);
+#endif
+#ifndef NO_SHA256
+    wc_Sha256Free(&ssl->hsHashes->hashSha25);
+#endif
 
-    HashFinal(ssl) ;
 #ifdef HAVE_SECURE_RENEGOTIATION
     if (ssl->secure_renegotiation && ssl->secure_renegotiation->enabled) {
         WOLFSSL_MSG("Secure Renegotiation needs to retain handshake resources");