[PATCH net 0/4] mptcp: various rare sending issues

From: Matthieu Baerts (NGI0)

Date: Tue Oct 28 2025 - 04:17:13 EST


Here are various fixes from Paolo, addressing very occasional issues on
the sending side:

- Patch 1: drop an optimisation that could lead to timeout in case of
race conditions. A fix for up to v5.11.

- Patch 2: fix stream corruption under very specific conditions. A fix
for up to v5.13.

- Patch 3: restore MPTCP-level zero window probe after a recent fix. A
fix for up to v5.16.

- Patch 4: new MIB counter to track MPTCP-level zero windows probe to
help catching issues similar to the one fixed by the previous patch.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
---
Paolo Abeni (4):
mptcp: drop bogus optimization in __mptcp_check_push()
mptcp: fix MSG_PEEK stream corruption
mptcp: restore window probe
mptcp: zero window probe mib

net/mptcp/mib.c | 1 +
net/mptcp/mib.h | 1 +
net/mptcp/protocol.c | 57 +++++++++++++++++++++++++++++++++-------------------
net/mptcp/protocol.h | 2 +-
4 files changed, 39 insertions(+), 22 deletions(-)
---
base-commit: 210b35d6a7ea415494ce75490c4b43b4e717d935
change-id: 20251027-net-mptcp-send-timeout-7fc1474fd849

Best regards,
--
Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>