From 314864362a8d17263498ea22a655b8e370cb16ba Mon Sep 17 00:00:00 2001
From: hunshcn <hunsh.cn@gmail.com>
Date: Sat, 14 Mar 2026 08:29:47 +0800
Subject: [PATCH] fix: close conn after peek failed in mixed listener (#2621)

---
 listener/mixed/mixed.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/listener/mixed/mixed.go b/listener/mixed/mixed.go
index bc67a476..200d095a 100644
--- a/listener/mixed/mixed.go
+++ b/listener/mixed/mixed.go
@@ -148,6 +148,7 @@ func handleConn(conn net.Conn, tunnel C.Tunnel, store auth.AuthStore, additions
 	bufConn := N.NewBufferedConn(conn)
 	head, err := bufConn.Peek(1)
 	if err != nil {
+		conn.Close()
 		return
 	}