From 7550067fdeece6b9a7338e63fcd8998316a958d1 Mon Sep 17 00:00:00 2001
From: Skyxim <noreply@skyxim.com>
Date: Tue, 8 Feb 2022 22:59:43 +0800
Subject: [PATCH] [Fixed] skip maybe invaild ip data packet

---
 listener/tun/ipstack/gvisor/tun.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/listener/tun/ipstack/gvisor/tun.go b/listener/tun/ipstack/gvisor/tun.go
index 7ec0e650..a0b3b1c5 100644
--- a/listener/tun/ipstack/gvisor/tun.go
+++ b/listener/tun/ipstack/gvisor/tun.go
@@ -200,6 +200,9 @@ func (t *gvisorAdapter) AsLinkEndpoint() (result stack.LinkEndpoint, err error)
 				p = header.IPv4ProtocolNumber
 			case header.IPv6Version:
 				p = header.IPv6ProtocolNumber
+			default:
+				log.Warnln("invalid IP version:%d", header.IPVersion(packet))
+				continue
 			}
 			if linkEP.IsAttached() {
 				linkEP.InjectInbound(p, stack.NewPacketBuffer(stack.PacketBufferOptions{