From b9b0fc811d000994fa36ad847a7dfff1e2676e82 Mon Sep 17 00:00:00 2001
From: lanrenwo <phpcleps@gmail.com>
Date: Mon, 5 Sep 2022 19:09:00 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dpanic:=20runtime=20error:=20i?=
 =?UTF-8?q?ndex=20out=20of=20range=20[12]=20with=20length=2010?=
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---
 server/handler/payload_tcp_parser.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/server/handler/payload_tcp_parser.go b/server/handler/payload_tcp_parser.go
index a7681c4..18a8d6d 100644
--- a/server/handler/payload_tcp_parser.go
+++ b/server/handler/payload_tcp_parser.go
@@ -17,6 +17,9 @@ var (
 )
 
 func onTCP(payload []byte) (uint8, string) {
+	if len(payload) < 13 {
+		return acc_proto_tcp, ""
+	}	
 	ihl := (payload[12] & 0xf0) >> 2
 	data := payload[ihl:]
 	for _, parser := range tcpParsers {