Merge tag 'batadv-net-pullrequest-20260630' of https://git.open-mesh.org/batadv

Simon Wunderlich says:

====================
Here are some batman-adv bugfix, all by Sven Eckelmann:

 - fix pointers after potential skb reallocs (5 patches)

 - dat: ensure accessible eth_hdr proto field

* tag 'batadv-net-pullrequest-20260630' of https://git.open-mesh.org/batadv:
  batman-adv: dat: ensure accessible eth_hdr proto field
  batman-adv: bla: reacquire gw address after skb realloc
  batman-adv: dat: acquire ARP hw source only after skb realloc
  batman-adv: gw: acquire ethernet header only after skb realloc
  batman-adv: access unicast_ttvn skb->data only after skb realloc
  batman-adv: retrieve ethhdr after potential skb realloc on RX
====================

Link: https://patch.msgid.link/20260630134430.85786-1-sw@simonwunderlich.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>