mptcp: fix DATA_FIN processing for orphaned sockets

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Currently we move orphaned msk sockets directly from FIN_WAIT2
state to CLOSE, with the rationale that incoming additional
data could be just dropped by the TCP stack/TW sockets.

Anyhow we miss sending MPTCP-level ack on incoming DATA_FIN,
and that may hang the peers.

Fixes: e16163b6e2 ("mptcp: refactor shutdown and close")
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Paolo Abeni 2021-02-19 18:35:37 +01:00 • committed by Jakub Kicinski

parent 94ead4caa0

commit 341c65242f

1 changed files with 4 additions and 5 deletions

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net/mptcp/protocol.c

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