diff mbox series

[net,v2,5/5] mptcp: initialize the data_fin field for mpc packets

Message ID 0701d07b1b9b94052fbb8f32b870a037e0f7d3ac.1588243786.git.pabeni@redhat.com
State Superseded
Headers show
Series [net,v2,1/5] mptcp: consolidate synack processing. | expand

Commit Message

Paolo Abeni April 30, 2020, 1:01 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;