wgengine: don't leak TUN device in NewUserspaceEngine error path

Updates #1187 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-27 10:59:47 -08:00 · 2021-01-27 10:59:47 -08:00 · 4d943536f1
parent 9f5b0d058f
commit 4d943536f1
1 changed files with 1 additions and 0 deletions
--- a/wgengine/userspace.go
+++ b/wgengine/userspace.go
@ -194,6 +194,7 @@ func NewUserspaceEngine(logf logger.Logf, tunname string, listenPort uint16) (En

 	e, err := NewUserspaceEngineAdvanced(conf)
 	if err != nil {
+		tun.Close()
 		return nil, err
 	}
 	return e, err