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batman-adv: Don't leak information through uninitialized packet fields

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The reserved fields in batman-adv packets are not set to a constant value. The
content of these memory regions is leaked unintentionally to the network.

This regression was introduced in 3b27ffb00f

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
This commit is contained in:
Sven Eckelmann
2012-06-28 11:56:52 +02:00
committed by Antonio Quartulli
parent 0c5e45b63d
commit 162d549c69
3 changed files with 4 additions and 0 deletions
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1
net/batman-adv/soft-interface.c
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@@ -214,6 +214,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
/* batman packet type: broadcast */
bcast_packet->header.packet_type = BATADV_BCAST;
bcast_packet->reserved = 0;
/* hw address of first interface is the orig mac because only
* this mac is known throughout the mesh