Merge tag 'batadv-net-pullrequest-20260317' of https://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
Here is a batman-adv bugfix:

- avoid OGM aggregation when skb tailroom is insufficient, by Yang Yang

* tag 'batadv-net-pullrequest-20260317' of https://git.open-mesh.org/linux-merge:
  batman-adv: avoid OGM aggregation when skb tailroom is insufficient
====================

Link: https://patch.msgid.link/20260317160002.1869478-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kuba-moo

net/batman-adv/bat_iv_ogm.c

@@ -473,6 +473,9 @@ batadv_iv_ogm_can_aggregate(const struct batadv_ogm_packet *new_bat_ogm_packet,
 	if (aggregated_bytes > max_bytes)
 		return false;
 
+	if (skb_tailroom(forw_packet->skb) < packet_len)
+		return false;
+
 	if (packet_num >= BATADV_MAX_AGGREGATION_PACKETS)
 		return false;