Merge branch 'mptcp-fix-warn-on-bad-status'

Matthieu Baerts says:

====================
mptcp: fix warn on bad status

Two somewhat related fixes addressing different issues found by
syzkaller, and producing the exact same splat: a WARNING in
subflow_data_ready().

- Patch 1: fallback earlier on simultaneous connections to avoid a
  warning. A fix for v5.19.

- Patch 2: ensure context reset on disconnect, also to avoid a similar
  warning. A fix for v6.2.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
====================

Link: https://patch.msgid.link/20251212-net-mptcp-subflow_data_ready-warn-v1-0-d1f9fd1c36c8@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>