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ovpn: reset MAC header before passing skb up

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After decapsulating a packet, the skb->mac_header still points to the
outer transport header.

Fix this by calling skb_reset_mac_header() in ovpn_netdev_write() to
ensure the MAC header points to the beginning of
the inner IP/network packet, as expected by the rest of the stack.

Reported-by: Minqiang Chen <ptpt52@gmail.com>
Fixes: 8534731dbf ("ovpn: implement packet processing")
Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
This commit is contained in:
Qingfang Deng 2026-04-27 12:00:11 +08:00 committed by Antonio Quartulli
parent bd3a4795d5
commit a200cdbf95
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ovpn/io.c
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@ -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);