From 7501f55f2be0c60f3ec5efe8c15a790665e7ac1a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 2 Jul 2010 10:05:01 +0200 Subject: [PATCH] netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT commit 499031ac8a3df6738f6186ded9da853e8ea18253 upstream. 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 Signed-off-by: Patrick McHardy Signed-off-by: Greg Kroah-Hartman --- net/ipv6/netfilter/ip6t_REJECT.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index 39b50c3768e8..67e711050069 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -96,9 +96,11 @@ 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; -- 2.39.5