Merge branch 'mptcp-misc-fixes-for-v7-2-rc5'

Matthieu Baerts says:

====================
mptcp: misc fixes for v7.2-rc5

Here are various unrelated fixes:

- Patch 1: decrement extra subflows counter in case of errors with
  passive MP_JOIN. A fix for v5.7.

- Patch 2: fix use-after-free in userspace_pm_get_local_id. A fix for
  v5.19.

- Patch 3: fix stale skb->sk reference on subflow close, in case of
  concurrent read operation. A fix for v6.19.

- Patch 4: wait on the correct port in the userspace_pm.sh selftest. A
  fix for v6.19.

- Patch 5: fix a BUILD_BUG_ON on legacy ARM config. A fix for v7.1.
====================

Link: https://patch.msgid.link/20260722-net-mptcp-misc-fixes-7-2-rc5-v1-0-6fb595bc86ef@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>