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netfilter: ipset: Skip really non-first fragments for IPv6 when getting port/protocol

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Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
This commit is contained in:
Jozsef Kadlecsik 2013-09-16 20:00:08 +02:00
parent d830f0fa1d
commit 55524c219a
1 changed files with 2 additions and 2 deletions
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4
net/netfilter/ipset/ip_set_getport.c
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@ -116,12 +116,12 @@ ip_set_get_ip6_port(const struct sk_buff *skb, bool src,
{
int protoff;
u8 nexthdr;
__be16 frag_off;
__be16 frag_off = 0;
nexthdr = ipv6_hdr(skb)->nexthdr;
protoff = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &nexthdr,
&frag_off);
if (protoff < 0)
if (protoff < 0 || (frag_off & htons(~0x7)) != 0)
return false;
return get_port(skb, nexthdr, protoff, src, port, proto);