From c773abde77901967f12267c352ebcfaee162ba52 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Thu, 13 Feb 2020 08:59:31 -0800
Subject: [PATCH] wgengine: fix nil pointer deref crash from earlier change

Fixes #45
---
 wgengine/userspace.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wgengine/userspace.go b/wgengine/userspace.go
index d2e6242f9..d6632c202 100644
--- a/wgengine/userspace.go
+++ b/wgengine/userspace.go
@@ -183,7 +183,7 @@ func NewUserspaceEngineAdvanced(logf logger.Logf, tuntap tun.Device, routerGen R
 		e.wgdev.Close()
 		return nil, err
 	}
-	if err := e.router.SetRoutes(RouteSettings{}); err != nil {
+	if err := e.router.SetRoutes(RouteSettings{Cfg: new(wgcfg.Config)}); err != nil {
 		e.wgdev.Close()
 		return nil, err
 	}