From: Dan Carpenter <dan.carpenter@oracle.com>
To: Wensong Zhang <wensong@linux-vs.org>
Cc: Simon Horman <horms@verge.net.au>, Julian Anastasov <ja@ssi.bg>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Patrick McHardy <kaber@trash.net>,
Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, lvs-devel@vger.kernel.org,
netfilter-devel@vger.kernel.org, netfilter@vger.kernel.org,
coreteam@netfilter.org, kernel-janitors@vger.kernel.org
Subject: [patch] ipvs: info leak in __ip_vs_get_dest_entries()
Date: Mon, 3 Jun 2013 12:00:49 +0300 [thread overview]
Message-ID: <20130603090049.GA16171@debian> (raw)
The entry struct has a 2 byte hole after ->port and another 4 byte
hole after ->stats.outpkts. You must have CAP_NET_ADMIN in your
namespace to hit this information leak.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index df05c1c..e336535 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2542,6 +2542,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
struct ip_vs_dest *dest;
struct ip_vs_dest_entry entry;
+ memset(&entry, 0, sizeof(entry));
list_for_each_entry(dest, &svc->destinations, n_list) {
if (count >= get->num_dests)
break;
next reply other threads:[~2013-06-03 9:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-03 9:00 Dan Carpenter [this message]
2013-06-03 20:00 ` [patch] ipvs: info leak in __ip_vs_get_dest_entries() Julian Anastasov
2013-06-04 1:03 ` Simon Horman
2013-06-07 8:33 ` Dan Carpenter
2013-06-10 8:38 ` Simon Horman
2013-06-10 12:58 ` Pablo Neira Ayuso
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