batman-adv: fix TX priority extraction for BATADV_FORW_MCAST

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batadv_mcast_forw_mode_by_count() pushs the skb->data for BATADV_FORW_MCAST
forwarding via batadv_mcast_forw_mcsend(). But the
batadv_skb_set_priority() expects the ethernet header directly before
(skb->data + offset). With the moved skb->data, just some random data would
be accessed to get the priority data.

Move the batadv_skb_set_priority() before the decision about the handling
multicast packets and potential header modifications.

Cc: stable@vger.kernel.org
Fixes: 9003913322 ("batman-adv: mcast: implement multicast packet generation")
Signed-off-by: Sven Eckelmann <sven@narfation.org>

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Sven Eckelmann 2026-07-09 20:44:24 +02:00

parent e6de568d3e

commit 7aedb59b80

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1 changed files with 5 additions and 2 deletions

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net/batman-adv/mesh-interface.c

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