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[NETFILTER]: xt_TCPMSS: remove network triggerable WARN_ON

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ipv6_skip_exthdr() returns -1 for invalid packets. don't WARN_ON
that.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Patrick McHardy 2007-11-30 23:58:03 +11:00 committed by Herbert Xu
parent 3ccd86241b
commit 9dc0564e86
1 changed files with 1 additions and 3 deletions
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4
net/netfilter/xt_TCPMSS.c
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@ -174,10 +174,8 @@ xt_tcpmss_target6(struct sk_buff *skb,
nexthdr = ipv6h->nexthdr; nexthdr = ipv6h->nexthdr;
tcphoff = ipv6_skip_exthdr(skb, sizeof(*ipv6h), &nexthdr); tcphoff = ipv6_skip_exthdr(skb, sizeof(*ipv6h), &nexthdr);
if (tcphoff < 0) { if (tcphoff < 0)
WARN_ON(1);
return NF_DROP; return NF_DROP;
}
ret = tcpmss_mangle_packet(skb, targinfo, tcphoff, ret = tcpmss_mangle_packet(skb, targinfo, tcphoff,
sizeof(*ipv6h) + sizeof(struct tcphdr)); sizeof(*ipv6h) + sizeof(struct tcphdr));
if (ret < 0) if (ret < 0)