From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130411202612.980288644@goodmis.org> Date: Thu, 11 Apr 2013 16:27:46 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hong Zhiguo , "David S. Miller" Subject: [ 163/171 ] ipv6: fix bad free of addrconf_init_net References: <20130411202503.783159048@goodmis.org> Content-Disposition: inline; filename=0163-ipv6-fix-bad-free-of-addrconf_init_net.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.2 stable review patch. If anyone has any objections, please let me know. ------------------ From: Hong Zhiguo [ Upstream commit a79ca223e029aa4f09abb337accf1812c900a800 ] Signed-off-by: Hong Zhiguo Signed-off-by: David S. Miller Signed-off-by: Steven Rostedt --- net/ipv6/addrconf.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index fd82a30..ec627b5 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4653,26 +4653,20 @@ static void addrconf_sysctl_unregister(struct inet6_dev *idev) static int __net_init addrconf_init_net(struct net *net) { - int err; + int err = -ENOMEM; struct ipv6_devconf *all, *dflt; - err = -ENOMEM; - all = &ipv6_devconf; - dflt = &ipv6_devconf_dflt; + all = kmemdup(&ipv6_devconf, sizeof(ipv6_devconf), GFP_KERNEL); + if (all == NULL) + goto err_alloc_all; - if (!net_eq(net, &init_net)) { - all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL); - if (all == NULL) - goto err_alloc_all; + dflt = kmemdup(&ipv6_devconf_dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL); + if (dflt == NULL) + goto err_alloc_dflt; - dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL); - if (dflt == NULL) - goto err_alloc_dflt; - } else { - /* these will be inherited by all namespaces */ - dflt->autoconf = ipv6_defaults.autoconf; - dflt->disable_ipv6 = ipv6_defaults.disable_ipv6; - } + /* these will be inherited by all namespaces */ + dflt->autoconf = ipv6_defaults.autoconf; + dflt->disable_ipv6 = ipv6_defaults.disable_ipv6; net->ipv6.devconf_all = all; net->ipv6.devconf_dflt = dflt; -- 1.7.10.4