Merge tag 'ovpn-net-20260730' of https://github.com/OpenVPN/ovpn-net-next

Antonio Quartulli says:

====================
Included fixes:

* use rcu_dereference_bh() instead of rcu_access_pointer() where the
  pointer is actually dereferenced
* ensure TCP global variables are initialized before they can be
  accessed via netlink (e.g. when attaching a TCP socket)
* actually disable IPv4 redirects on multipeer interfaces (the
  previous attempt was a no-op and did not survive netns moves)
* hash a floated peer by its transport identity only, consistently
  with the add and lookup paths
* zero the sockaddr padding before learning a floated endpoint so it
  does not leak into the by_transp_addr hash key
* ensure the socket is owned by ovpn before dereferencing
  sk_user_data
* rehash a peer in the by_transp_addr table when its remote endpoint
  is updated via CMD_PEER_SET
* avoid re-adding to the hashtables a peer that was concurrently
  removed (use-after-free)
* limit keepalive values to one day to avoid overflowing the
  delayed-work delay on 32-bit systems
* add the missing rtnl_link_ops->get_size callback so link messages
  account for the nested mode attribute

* tag 'ovpn-net-20260730' of https://github.com/OpenVPN/ovpn-net-next:
  ovpn: fix incorrect use of rcu_access_pointer()
  ovpn: ensure TCP vars are initialized first
  ovpn: disable IPv4 redirects on MP interfaces
  ovpn: hash floated peer by transport identity only
  ovpn: zero-initialize sockaddr before learning a floated endpoint
  ovpn: ensure socket is owned by ovpn before deref sk_user_data
  ovpn: rehash peer in by_transp_addr table on CMD_PEER_SET
  ovpn: skip rehash for peers already removed from by_id
  ovpn: limit keepalive values to one day
  ovpn: add missing rtnl_link_ops->get_size callback
====================

Link: https://patch.msgid.link/20260730094624.4102963-1-antonio@openvpn.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>