ipv6: xfrm: dereference inner ipv6 header if encapsulated
In xfrm6_local_error use inner_header if the packet was encapsulated. Cc: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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@ -59,10 +59,12 @@ static void xfrm6_local_rxpmtu(struct sk_buff *skb, u32 mtu)
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void xfrm6_local_error(struct sk_buff *skb, u32 mtu)
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void xfrm6_local_error(struct sk_buff *skb, u32 mtu)
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{
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{
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struct flowi6 fl6;
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struct flowi6 fl6;
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const struct ipv6hdr *hdr;
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struct sock *sk = skb->sk;
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struct sock *sk = skb->sk;
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hdr = skb->encapsulation ? inner_ipv6_hdr(skb) : ipv6_hdr(skb);
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fl6.fl6_dport = inet_sk(sk)->inet_dport;
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fl6.fl6_dport = inet_sk(sk)->inet_dport;
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fl6.daddr = ipv6_hdr(skb)->daddr;
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fl6.daddr = hdr->daddr;
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ipv6_local_error(sk, EMSGSIZE, &fl6, mtu);
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ipv6_local_error(sk, EMSGSIZE, &fl6, mtu);
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}
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}
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