From a2b2ce124e7056cccf8ca94b09178335ce6f8548 Mon Sep 17 00:00:00 2001
From: Jacob Barthelmeh <jacob@wolfssl.com>
Date: Fri, 26 Oct 2018 13:53:41 -0600
Subject: [PATCH] add a check to help out static analysis tool

---
 wolfcrypt/src/pkcs7.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/wolfcrypt/src/pkcs7.c b/wolfcrypt/src/pkcs7.c
index 255824745..c159d63ee 100644
--- a/wolfcrypt/src/pkcs7.c
+++ b/wolfcrypt/src/pkcs7.c
@@ -9006,6 +9006,11 @@ WOLFSSL_API int wc_PKCS7_DecodeEnvelopedData(PKCS7* pkcs7, byte* in,
             }
             wc_PKCS7_StreamGetVar(pkcs7, 0, 0, &length);
             tmpIv = pkcs7->stream->tmpIv;
+            if (tmpIv == NULL) {
+                /* check added to help out static analysis tool */
+                ret = MEMORY_E;
+                break;
+            }
         #endif
 
             XMEMCPY(tmpIv, &pkiMsg[idx], length);