diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2011-03-18 05:27:28 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-21 14:32:37 -0700 |
| commit | 5f1c356a3fadc0c19922d660da723b79bcc9aad7 (patch) | |
| tree | 01d51e76a565970281a995d978b74f4a237fa352 /net | |
| parent | 01b7e60bf848901c3a95794c90888e4e33ab751f (diff) | |
bridge: Reset IPCB when entering IP stack on NF_FORWARD
[ Upstream commit 6b1e960fdbd75dcd9bcc3ba5ff8898ff1ad30b6e ]
Whenever we enter the IP stack proper from bridge netfilter we
need to ensure that the skb is in a form the IP stack expects
it to be in.
The entry point on NF_FORWARD did not meet the requirements of
the IP stack, therefore leading to potential crashes/panics.
This patch fixes the problem.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_netfilter.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index 4b5b66d07bba..49d50ea5dbbc 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -741,6 +741,9 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, nf_bridge->mask |= BRNF_PKT_TYPE; } + if (br_parse_ip_options(skb)) + return NF_DROP; + /* The physdev module checks on this */ nf_bridge->mask |= BRNF_BRIDGED; nf_bridge->physoutdev = skb->dev; |