[SCTP]: Verify all destination ports in sctp_connectx.
Vlad Yasevich authored

We need to make sure that all destination ports are the same, since
the association really must not connect to multiple different ports
at once.  This was reported on the sctp-impl list.
Signed-off-by: default avatarVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
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