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netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT
author
Eric Dumazet
<eric.dumazet@gmail.com>
Fri, 2 Jul 2010 08:05:01 +0000
(10:05 +0200)
committer
Patrick McHardy
<kaber@trash.net>
Fri, 2 Jul 2010 08:05:01 +0000
(10:05 +0200)
We should release dst if dst->error is set.
Bug introduced in 2.6.14 by commit
e104411b82f5c
([XFRM]: Always release dst_entry on error in xfrm_lookup)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
net/ipv6/netfilter/ip6t_REJECT.c
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diff --git
a/net/ipv6/netfilter/ip6t_REJECT.c
b/net/ipv6/netfilter/ip6t_REJECT.c
index 47d2277137585648f57711618fe9b573ec83a1ff..2933396e02814c4020a5247f04815811b8867ee6 100644
(file)
--- a/
net/ipv6/netfilter/ip6t_REJECT.c
+++ b/
net/ipv6/netfilter/ip6t_REJECT.c
@@
-97,9
+97,11
@@
static void send_reset(struct net *net, struct sk_buff *oldskb)
fl.fl_ip_dport = otcph.source;
security_skb_classify_flow(oldskb, &fl);
dst = ip6_route_output(net, NULL, &fl);
- if (dst == NULL)
+ if (dst == NULL || dst->error) {
+ dst_release(dst);
return;
- if (dst->error || xfrm_lookup(net, &dst, &fl, NULL, 0))
+ }
+ if (xfrm_lookup(net, &dst, &fl, NULL, 0))
return;
hh_len = (dst->dev->hard_header_len + 15)&~15;