FAQ Search Today's Posts Mark Forums Read
» Video Reviews

» Linux Archive

Linux-archive is a website aiming to archive linux email lists and to make them easily accessible for linux users/developers.

» Sponsor

» Partners

» Sponsor

Go Back   Linux Archive > Ubuntu > Ubuntu Kernel Team

LinkBack Thread Tools
Old 10-11-2012, 07:50 AM
Jesse Sung
Default bridge: Pull ip header into skb->data before looking into ip header.

From: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>

BugLink: https://launchpad.net/bugs/1065150

If lower layer driver leaves the ip header in the skb fragment, it needs to
be first pulled into skb->data before inspecting ip header length or ip version

Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 6caab7b0544e83e6c160b5e80f5a4a7dd69545c7 net.git)

Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
net/bridge/br_netfilter.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 577ea5d..7c1745d 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -245,6 +245,9 @@ static int br_parse_ip_options(struct sk_buff *skb)
struct net_device *dev = skb->dev;
u32 len;

+ if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+ goto inhdr_error;
iph = ip_hdr(skb);
opt = &(IPCB(skb)->opt);


kernel-team mailing list

Thread Tools

All times are GMT. The time now is 01:57 PM.

VBulletin, Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright �2007 - 2008, www.linux-archive.org