net: bridge: arp/nd proxy: fix reading neigh ha

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Currently neigh ha address is read directly, but that can result in
torn/partial reads if the neigh is being updated. Use neigh_ha_snapshot
to take a stable snapshot of the address.

Fixes: 057658cb33 ("bridge: suppress arp pkts on BR_NEIGH_SUPPRESS ports")
Fixes: ed842faeb2 ("bridge: suppress nd pkts on BR_NEIGH_SUPPRESS ports")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260818150756.890025-2-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Nikolay Aleksandrov 2026-08-18 18:07:55 +03:00 • committed by Jakub Kicinski

parent 5ee0ceddc7

commit 57549ab907

1 changed files with 14 additions and 10 deletions

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net/bridge/br_arp_nd_proxy.c

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