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From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: kaber@trash.net
Subject: [PATCH 1/2] netfilter: nfnetlink_log: fix wrong skbuff size calculation
Date: Wed, 27 May 2009 14:54:01 +0200	[thread overview]
Message-ID: <20090527125401.11366.31677.stgit@Decadence> (raw)
In-Reply-To: <20090527125242.11366.70215.stgit@Decadence>

This problem was introduced in 72961ecf84d67d6359a1b30f9b2a8427f13e1e71
since no space was reserved for the new attributes NFULA_HWTYPE,
NFULA_HWLEN and NFULA_HWHEADER.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

 net/netfilter/nfnetlink_log.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index fd326ac..66a6dd5 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -581,6 +581,12 @@ nfulnl_log_packet(u_int8_t pf,
 		+ nla_total_size(sizeof(struct nfulnl_msg_packet_hw))
 		+ nla_total_size(sizeof(struct nfulnl_msg_packet_timestamp));
 
+	if (in && skb_mac_header_was_set(skb)) {
+		size +=   nla_total_size(skb->dev->hard_header_len)
+			+ nla_total_size(sizeof(u_int16_t))	/* hwtype */
+			+ nla_total_size(sizeof(u_int16_t));	/* hwlen */
+	}
+
 	spin_lock_bh(&inst->lock);
 
 	if (inst->flags & NFULNL_CFG_F_SEQ)


  reply	other threads:[~2009-05-27 13:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-27 12:53 [PATCH 0/2] A couple of netfilter fixes Pablo Neira Ayuso
2009-05-27 12:54 ` Pablo Neira Ayuso [this message]
2009-05-27 13:50   ` [PATCH 1/2] netfilter: nfnetlink_log: fix wrong skbuff size calculation Patrick McHardy
2009-05-27 12:54 ` [PATCH 2/2] netfilter: conntrack: add support for DCCP handshake sequence to ctnetlink Pablo Neira Ayuso
2009-05-27 14:13   ` Patrick McHardy
2009-05-27 14:50     ` Pablo Neira Ayuso
2009-05-27 15:51       ` Patrick McHardy

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