From: Jan Engelhardt <jengelh@medozas.de>
Date: Thu, 4 Nov 2010 01:55:39 +0000 (-0700)
Subject: netfilter: ip6_tables: fix information leak to userspace
X-Git-Tag: firefly_0821_release~7613^2~3442^2~49
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cccbe5ef85284621d19e5b2b1c61cc0506bc9dee;p=firefly-linux-kernel-4.4.55.git

netfilter: ip6_tables: fix information leak to userspace

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 51df035897e7..455582384ece 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1137,6 +1137,7 @@ static int get_info(struct net *net, void __user *user,
 			private = &tmp;
 		}
 #endif
+		memset(&info, 0, sizeof(info));
 		info.valid_hooks = t->valid_hooks;
 		memcpy(info.hook_entry, private->hook_entry,
 		       sizeof(info.hook_entry));