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mptcp: initialize the data_fin field for mpc packets 

When parsing MPC+data packets we set the dss field, so
we must also initialize the data_fin, or we can find stray
value there.

Fixes: 9a19371bf0 ("mptcp: fix data_fin handing in RX path")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2020-04-30 15:01:55 +02:00 committed by David S. Miller
parent 5a91e32b40
commit a77895dbc0
1 changed files with 1 additions and 0 deletions
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1
net/mptcp/options.c
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@ -858,6 +858,7 @@ void mptcp_incoming_options(struct sock *sk, struct sk_buff *skb,
mpext->subflow_seq = 1;
mpext->dsn64 = 1;
mpext->mpc_map = 1;
mpext->data_fin = 0;
} else {
mpext->data_seq = mp_opt.data_seq;
mpext->subflow_seq = mp_opt.subflow_seq;