From b4ec688f1a98ed3b7d0a8a654c2ce28b33de0c54 Mon Sep 17 00:00:00 2001
From: Shtorm <108103062+shtorm-7@users.noreply.github.com>
Date: Sat, 25 Jul 2026 21:17:48 +0300
Subject: [PATCH] Fix MASQUE endpoint parsing

---
 transport/masque/masque.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/transport/masque/masque.go b/transport/masque/masque.go
index bbed11e0..aaa93d65 100644
--- a/transport/masque/masque.go
+++ b/transport/masque/masque.go
@@ -77,7 +77,16 @@ func ConnectTunnel(ctx context.Context, dialer N.Dialer, tlsConfig aTLS.Config,
 	if !ok || quicEndpoint == nil {
 		return nil, nil, nil, errors.New("missing HTTP/3 UDP endpoint")
 	}
-	udpConn, err := dialer.ListenPacket(ctx, M.SocksaddrFromNetIP(quicEndpoint.AddrPort()))
+	endpointAddrPort := quicEndpoint.AddrPort()
+	udpConn, err := dialer.ListenPacket(
+		ctx,
+		M.SocksaddrFromNetIP(
+			netip.AddrPortFrom(
+				endpointAddrPort.Addr().Unmap(),
+				endpointAddrPort.Port(),
+			),
+		),
+	)
 	if err != nil {
 		return nil, nil, nil, err
 	}