From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 3 Jun 2013 09:00:49 +0000 (+0300)
Subject: ipvs: info leak in __ip_vs_get_dest_entries()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a8241c63517ec0b900695daa9003cddc41c536a1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ipvs: info leak in __ip_vs_get_dest_entries()

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>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 5b142fb16480..9e6c2a075a4c 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;