Commit d301e325 authored by James Chapman's avatar James Chapman Committed by David S. Miller
Browse files

l2tp: fix data packet sequence number handling

If enabled, L2TP data packets have sequence numbers which a receiver
can use to drop out of sequence frames or try to reorder them. The
first frame has sequence number 0, but the L2TP code currently expects
it to be 1. This results in the first data frame being handled as out
of sequence.

This one-line patch fixes the problem.
Signed-off-by: default avatarJames Chapman <>
Signed-off-by: default avatarDavid S. Miller <>
parent 38d40b3f
......@@ -1762,7 +1762,7 @@ struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunn
session->session_id = session_id;
session->peer_session_id = peer_session_id;
session->nr = 1;
session->nr = 0;
sprintf(&session->name[0], "sess %u/%u",
tunnel->tunnel_id, session->session_id);
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