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authorHaishuang Yan <yanhaishuang@cmss.chinamobile.com>2020-03-17 10:02:53 +0800
committerPablo Neira Ayuso <pablo@netfilter.org>2020-03-19 21:05:05 +0100
commit41e9ec5a54f95eee1a57c8d26ab70e0492548c1b (patch)
treea067de72a1a4be3a2c0313dc3b1dfa6c11ab4210 /net/netfilter/nf_flow_table_ip.c
parentnetfilter: flowtable: reload ip{v6}h in nf_flow_nat_ip{v6} (diff)
downloadlinux-dev-41e9ec5a54f95eee1a57c8d26ab70e0492548c1b.tar.xz
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netfilter: flowtable: reload ip{v6}h in nf_flow_tuple_ip{v6}
Since pskb_may_pull may change skb->data, so we need to reload ip{v6}h at the right place. Fixes: a908fdec3dda ("netfilter: nf_flow_table: move ipv6 offload hook code to nf_flow_table") Fixes: 7d2086871762 ("netfilter: nf_flow_table: move ipv4 offload hook code to nf_flow_table") Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_flow_table_ip.c')
-rw-r--r--net/netfilter/nf_flow_table_ip.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/netfilter/nf_flow_table_ip.c b/net/netfilter/nf_flow_table_ip.c
index 22caab7bb755..ba775aecd89a 100644
--- a/net/netfilter/nf_flow_table_ip.c
+++ b/net/netfilter/nf_flow_table_ip.c
@@ -191,6 +191,7 @@ static int nf_flow_tuple_ip(struct sk_buff *skb, const struct net_device *dev,
if (!pskb_may_pull(skb, thoff + sizeof(*ports)))
return -1;
+ iph = ip_hdr(skb);
ports = (struct flow_ports *)(skb_network_header(skb) + thoff);
tuple->src_v4.s_addr = iph->saddr;
@@ -463,6 +464,7 @@ static int nf_flow_tuple_ipv6(struct sk_buff *skb, const struct net_device *dev,
if (!pskb_may_pull(skb, thoff + sizeof(*ports)))
return -1;
+ ip6h = ipv6_hdr(skb);
ports = (struct flow_ports *)(skb_network_header(skb) + thoff);
tuple->src_v6 = ip6h->saddr;