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authorHerbert Xu <herbert@gondor.apana.org.au>2011-03-18 05:27:28 +0000
committerDavid S. Miller <davem@davemloft.net>2011-03-18 15:13:12 -0700
commit6b1e960fdbd75dcd9bcc3ba5ff8898ff1ad30b6e (patch)
tree71834e9ccd22d9e7aed7272e805a514664cf8b25
parentd870bfb9d366c5d466c0f5419a4ec95a3f71ea8a (diff)
bridge: Reset IPCB when entering IP stack on NF_FORWARD
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>
-rw-r--r--net/bridge/br_netfilter.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index f97af5590ba..008ff6c4eec 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -739,6 +739,9 @@ 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;