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authorEric Dumazet <eric.dumazet@gmail.com>2010-07-02 10:05:01 +0200
committerPatrick McHardy <kaber@trash.net>2010-07-02 10:05:01 +0200
commit499031ac8a3df6738f6186ded9da853e8ea18253 (patch)
treefe80f44cf43ccd9a642cbdb5aba7637820e83657 /net
parentaea9d711f3d68c656ad31ab578ecfb0bb5cd7f97 (diff)
downloadlinux-2.6.34-ux500-499031ac8a3df6738f6186ded9da853e8ea18253.tar.gz
netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT
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>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 47d22771375..2933396e028 100644
--- 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;