From 3cafee572808cb32b14086d920e8a37fc7bb5b23 Mon Sep 17 00:00:00 2001
From: Simone Mainardi <mainardi@ntop.org>
Date: Fri, 31 Jul 2020 17:06:18 +0200
Subject: [PATCH] Fixes possible crash when collecting IPV4_NEXT_HOP

---
 src/ZMQParserInterface.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ZMQParserInterface.cpp b/src/ZMQParserInterface.cpp
index 8eaa37e4e9..c54b383e4d 100755
--- a/src/ZMQParserInterface.cpp
+++ b/src/ZMQParserInterface.cpp
@@ -504,7 +504,7 @@ bool ZMQParserInterface::parsePENZeroField(ParsedFlow * const flow, u_int32_t fi
       return false;
     break;
   case IPV4_NEXT_HOP:
-    if(strcmp(value->string, "0.0.0.0"))
+    if(value->string && strcmp(value->string, "0.0.0.0"))
       return false;
     break;
   case SRC_AS: