From b8d9179def0bd2700db9b725bc6c14c34d54f510 Mon Sep 17 00:00:00 2001
From: evilsocket <evilsocket@gmail.com>
Date: Mon, 22 Apr 2019 11:13:24 +0200
Subject: [PATCH] misc: small fix or general refactoring i did not bother
 commenting

---
 modules/syn_scan/syn_scan_reader.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/syn_scan/syn_scan_reader.go b/modules/syn_scan/syn_scan_reader.go
index b64a63b9..42fbbde1 100644
--- a/modules/syn_scan/syn_scan_reader.go
+++ b/modules/syn_scan/syn_scan_reader.go
@@ -19,6 +19,10 @@ type OpenPort struct {
 }
 
 func (mod *SynScanner) onPacket(pkt gopacket.Packet) {
+	if pkt == nil || pkt.Data() == nil {
+		return
+	}
+
 	var eth layers.Ethernet
 	var ip layers.IPv4
 	var tcp layers.TCP