From e72d1fbba2281c5868c3cf6b9a93b4faaf18c2a7 Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Tue, 12 Jan 2016 23:27:42 +0100
Subject: [PATCH 1/1] FIX: Coverity, CID#121314,  Explicit null dereferenced, 
 in really odd occasions buf would be NULL, and sending NULL to memcpy
 dereferences it.  Not sure about this fix.

---
 client/cmdhfmf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 7736b9c5..cde20d79 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -2052,6 +2052,11 @@ int CmdHF14AMfSniff(const char *Cmd){
 					bufsize = traceLen;
 					memset(buf, 0x00, traceLen);
 				}
+				if (bufPtr == NULL) {
+					PrintAndLog("Cannot allocate memory for trace");
+					free(buf);
+					return 2;
+				}
 				memcpy(bufPtr, resp.d.asBytes, len);
 				bufPtr += len;
 				pckNum++;
-- 
2.39.2