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| author | Paolo Abeni <pabeni@redhat.com> | 2023-07-04 22:44:33 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-07-05 10:51:14 +0100 |
| commit | 3fffa15bfef48b0ad6424779c03e68ae8ace5acb (patch) | |
| tree | 81224d85009f77cf282b898827596738b97bc508 | |
| parent | 80de809bd35e2a8999edf9f5aaa2d8de18921f11 (diff) | |
| download | linux-3fffa15bfef48b0ad6424779c03e68ae8ace5acb.tar.gz linux-3fffa15bfef48b0ad6424779c03e68ae8ace5acb.tar.bz2 linux-3fffa15bfef48b0ad6424779c03e68ae8ace5acb.zip | |
mptcp: ensure subflow is unhashed before cleaning the backlog
While tacking care of the mptcp-level listener I unintentionally
moved the subflow level unhash after the subflow listener backlog
cleanup.
That could cause some nasty race and makes the code harder to read.
Address the issue restoring the proper order of operations.
Fixes: 57fc0f1ceaa4 ("mptcp: ensure listener is unhashed before updating the sk status")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/mptcp/protocol.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index e892673deb73..489a3defdde5 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2909,10 +2909,10 @@ static void mptcp_check_listen_stop(struct sock *sk) return; lock_sock_nested(ssk, SINGLE_DEPTH_NESTING); + tcp_set_state(ssk, TCP_CLOSE); mptcp_subflow_queue_clean(sk, ssk); inet_csk_listen_stop(ssk); mptcp_event_pm_listener(ssk, MPTCP_EVENT_LISTENER_CLOSED); - tcp_set_state(ssk, TCP_CLOSE); release_sock(ssk); } |