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Staging: batman-adv: fix crash when new OGM is generated 

If aggregation is not enabled the local translation table can grow
much bigger and expects to fill a full ethernet packet.

Reported-by: Sam Yeung <sam.cwyeung@gmail.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Marek Lindner 2010-10-19 11:59:14 +02:00 committed by Greg Kroah-Hartman
parent 24fb009bae
commit 15f00687e3
1 changed files with 8 additions and 2 deletions
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10
drivers/staging/batman-adv/aggregation.c
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@ -123,8 +123,14 @@ static void new_aggregated_packet(unsigned char *packet_buff, int packet_len,
return;
}
forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
sizeof(struct ethhdr));
if ((atomic_read(&bat_priv->aggregation_enabled)) &&
(packet_len < MAX_AGGREGATION_BYTES))
forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
sizeof(struct ethhdr));
else
forw_packet_aggr->skb = dev_alloc_skb(packet_len +
sizeof(struct ethhdr));
if (!forw_packet_aggr->skb) {
if (!own_packet)
atomic_inc(&bat_priv->batman_queue_left);