path: root/net/ipv6/output_core.c
diff options
authorDavid Miller <davem@davemloft.net>2015-04-05 22:19:04 -0400
committerDavid S. Miller <davem@davemloft.net>2015-04-07 15:25:55 -0400
commit7026b1ddb6b8d4e6ee33dc2bd06c0ca8746fa7ab (patch)
tree3e11ed0f186ea6066a3f7efecb88d85bc732ee51 /net/ipv6/output_core.c
parent1c984f8a5df085bcf35364a8a870bd4db4da4ed3 (diff)
netfilter: Pass socket pointer down through okfn().
On the output paths in particular, we have to sometimes deal with two socket contexts. First, and usually skb->sk, is the local socket that generated the frame. And second, is potentially the socket used to control a tunneling socket, such as one the encapsulates using UDP. We do not want to disassociate skb->sk when encapsulating in order to fix this, because that would break socket memory accounting. The most extreme case where this can cause huge problems is an AF_PACKET socket transmitting over a vxlan device. We hit code paths doing checks that assume they are dealing with an ipv4 socket, but are actually operating upon the AF_PACKET one. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/output_core.c')
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index 4016a6ef9d61..7d1131dc29fe 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -146,8 +146,8 @@ int __ip6_local_out(struct sk_buff *skb)
ipv6_hdr(skb)->payload_len = htons(len);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
- return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
- skb_dst(skb)->dev, dst_output);
+ return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb->sk, skb,
+ NULL, skb_dst(skb)->dev, dst_output_sk);

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