From: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx> commit 4258b94831bb7ff28ab80e3c8d94db37db930728 upstream. The 'backup' flag from mptcp_subflow_context structure is supposed to be set only when the other peer flagged a subflow as backup, not the opposite. Fixes: 067065422fcd ("mptcp: add the outgoing MP_PRIO support") Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: Mat Martineau <martineau@xxxxxxxxxx> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx> Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/mptcp/pm_netlink.c | 1 - 1 file changed, 1 deletion(-) --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -481,7 +481,6 @@ static void __mptcp_pm_send_ack(struct m msk->last_snd = NULL; subflow->send_mp_prio = 1; - subflow->backup = backup; subflow->request_bkup = backup; } Patches currently in stable-queue which might be from matttbe@xxxxxxxxxx are queue-6.1/mptcp-pm-only-set-request_bkup-flag-when-sending-mp_prio.patch queue-6.1/mptcp-fix-duplicate-data-handling.patch queue-6.1/mptcp-distinguish-rcv-vs-sent-backup-flag-in-requests.patch queue-6.1/mptcp-fix-user-space-pm-announced-address-accounting.patch queue-6.1/mptcp-sched-check-both-directions-for-backup.patch queue-6.1/mptcp-fix-bad-rcvpruned-mib-accounting.patch queue-6.1/selftests-mptcp-always-close-input-s-fd-if-opened.patch queue-6.1/mptcp-fix-nl-pm-announced-address-accounting.patch