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[RFC,5/6] mptcp: initialize data_fin field for mpc packets

Message ID e4c4277239d8332aae77b5866d4191e89848369d.1588082498.git.pabeni@redhat.com
State Superseded, archived
Delegated to: Mat Martineau
Headers show
Series mptcp: refactor incoming options parsing | expand

Commit Message

Paolo Abeni April 28, 2020, 2:20 p.m. UTC 
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: 9a19371bf029 ("mptcp: fix data_fin handing in RX path")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
 net/mptcp/options.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 9486720c3256..45497af23906 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -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;