Fix DoS attack vulnerability in VMess Option Processing

proxy/vmess/outbound/outbound.go

@@ -158,7 +158,10 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 			return newError("failed to encode request").Base(err).AtWarning()
 		}
 
-		bodyWriter := session.EncodeRequestBody(request, writer)
+		bodyWriter, err := session.EncodeRequestBody(request, writer)
+		if err != nil {
+			return newError("failed to start encoding").Base(err)
+		}
 		bodyWriter2 := bodyWriter
 		if request.Command == protocol.RequestCommandMux && request.Port == 666 {
 			bodyWriter = xudp.NewPacketWriter(bodyWriter, target)
@@ -194,7 +197,10 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		}
 		h.handleCommand(rec.Destination(), header.Command)
 
-		bodyReader := session.DecodeResponseBody(request, reader)
+		bodyReader, err := session.DecodeResponseBody(request, reader)
+		if err != nil {
+			return newError("failed to start encoding response").Base(err)
+		}
 		if request.Command == protocol.RequestCommandMux && request.Port == 666 {
 			bodyReader = xudp.NewPacketReader(&buf.BufferedReader{Reader: bodyReader})
 		}