[PATCH net 0/4] mptcp: misc fixes for v6.19-rc1

From: Matthieu Baerts (NGI0)

Date: Fri Dec 05 2025 - 13:55:30 EST


Here are various unrelated fixes:

- Patches 1-2: ignore unknown in-kernel PM endpoint flags instead of
pretending they are supported. A fix for v5.7.

- Patch 3: avoid potential unnecessary rtx timer expiration. A fix for
v5.15.

- Patch 4: avoid a deadlock on fallback in case of SKB creation failure
while re-injecting.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
---
Matthieu Baerts (NGI0) (2):
mptcp: pm: ignore unknown endpoint flags
selftests: mptcp: pm: ensure unknown flags are ignored

Paolo Abeni (2):
mptcp: schedule rtx timer only after pushing data
mptcp: avoid deadlock on fallback while reinjecting

include/uapi/linux/mptcp.h | 1 +
net/mptcp/pm_netlink.c | 3 ++-
net/mptcp/protocol.c | 22 ++++++++++++++--------
tools/testing/selftests/net/mptcp/pm_netlink.sh | 4 ++++
tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 11 +++++++++++
5 files changed, 32 insertions(+), 9 deletions(-)
---
base-commit: 0373d5c387f24de749cc22e694a14b3a7c7eb515
change-id: 20251205-net-mptcp-misc-fixes-6-19-rc1-5174bd3df981

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