Merge branch 'bridge-vxlan-harden-nd-option-parsing-paths'

Yang Yang says:

====================
bridge/vxlan: harden ND option parsing paths

This series hardens ND option parsing in bridge and vxlan paths.

Patch 1 linearizes the request skb in br_nd_send() before walking ND
options. Patch 2 adds explicit ND option length validation in
br_nd_send(). Patch 3 adds matching ND option length validation in
vxlan_na_create().
====================

Link: https://patch.msgid.link/20260326034441.2037420-1-n05ec@lzu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>