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| author | Matthieu Baerts (NGI0) <matttbe@kernel.org> | 2026-05-05 18:00:57 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-07 04:16:45 +0300 |
| commit | 166b78344031bf7ac9f55cb5282776cfd85f220e (patch) | |
| tree | a7e938e19f4b039c4959103e80680a8be597b44b | |
| parent | 62a9b19dce77e72426f049fb99b9d1d032b9a8ea (diff) | |
| download | linux-166b78344031bf7ac9f55cb5282776cfd85f220e.tar.xz | |
mptcp: pm: prio: skip closed subflows
When sending an MP_PRIO, closed subflows need to be skipped.
This fixes the case where the initial subflow got closed, re-opened
later, then an MP_PRIO is needed for the same local address.
Note that explicit MP_PRIO cannot be sent during the 3WHS, so it is fine
to use __mptcp_subflow_active().
Fixes: 067065422fcd ("mptcp: add the outgoing MP_PRIO support")
Cc: stable@vger.kernel.org
Fixes: b29fcfb54cd7 ("mptcp: full disconnect implementation")
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260505-net-mptcp-pm-fixes-7-1-rc3-v1-9-fca8091060a4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/mptcp/pm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 4a6e5ab30d80..3c152bf66cd5 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -284,6 +284,9 @@ int mptcp_pm_mp_prio_send_ack(struct mptcp_sock *msk, struct sock *ssk = mptcp_subflow_tcp_sock(subflow); struct mptcp_addr_info local, remote; + if (!__mptcp_subflow_active(subflow)) + continue; + mptcp_local_address((struct sock_common *)ssk, &local); if (!mptcp_addresses_equal(&local, addr, addr->port)) continue; |