[PATCH ovpn-net-next] ovpn: reset MAC header before passing skb up

After decapsulating a packet, the skb->mac_header still points to the
outer transport header. Call skb_reset_mac_header() in
ovpn_netdev_write() to ensure the MAC header points to the beginning of
the inner IP packet.

Reported-by: Minqiang Chen <[email protected]>
Fixes: 8534731dbf2d ("ovpn: implement packet processing")
Signed-off-by: Qingfang Deng <[email protected]>
---
 drivers/net/ovpn/io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ovpn/io.c b/drivers/net/ovpn/io.c
index db43a1f8a07a..d92bb87be2b2 100644
--- a/drivers/net/ovpn/io.c
+++ b/drivers/net/ovpn/io.c
@@ -85,6 +85,7 @@ static void ovpn_netdev_write(struct ovpn_peer *peer, struct sk_buff *skb)
 	skb_scrub_packet(skb, true);
 
 	/* network header reset in ovpn_decrypt_post() */
+	skb_reset_mac_header(skb);
 	skb_reset_transport_header(skb);
 	skb_reset_inner_headers(skb);
 
-- 
2.43.0