From bb48ab00bd276460d618c9be0b2b2be5639746cb Mon Sep 17 00:00:00 2001
From: sagitchu <sagitchu@gmail.com>
Date: Tue, 21 Apr 2026 09:55:18 +0800
Subject: [PATCH] fix(udp): mark connection active on WriteQueue to prevent
 idle timeout race

---
 go-gost/x/internal/net/udp/listener.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/go-gost/x/internal/net/udp/listener.go b/go-gost/x/internal/net/udp/listener.go
index b7c34f4..fac064e 100644
--- a/go-gost/x/internal/net/udp/listener.go
+++ b/go-gost/x/internal/net/udp/listener.go
@@ -227,6 +227,7 @@ func (c *conn) SetIdle(idle bool) {
 func (c *conn) WriteQueue(b []byte) error {
 	select {
 	case c.rc <- b:
+		c.SetIdle(false)
 		return nil
 
 	case <-c.closed: