Commit a79ca223 authored by Hong Zhiguo's avatar Hong Zhiguo Committed by David S. Miller

ipv6: fix bad free of addrconf_init_net

Signed-off-by: default avatarHong Zhiguo <honkiko@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ded34e0f
...@@ -4784,26 +4784,20 @@ static void addrconf_sysctl_unregister(struct inet6_dev *idev) ...@@ -4784,26 +4784,20 @@ static void addrconf_sysctl_unregister(struct inet6_dev *idev)
static int __net_init addrconf_init_net(struct net *net) static int __net_init addrconf_init_net(struct net *net)
{ {
int err; int err = -ENOMEM;
struct ipv6_devconf *all, *dflt; struct ipv6_devconf *all, *dflt;
err = -ENOMEM; all = kmemdup(&ipv6_devconf, sizeof(ipv6_devconf), GFP_KERNEL);
all = &ipv6_devconf;
dflt = &ipv6_devconf_dflt;
if (!net_eq(net, &init_net)) {
all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL);
if (all == NULL) if (all == NULL)
goto err_alloc_all; goto err_alloc_all;
dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL); dflt = kmemdup(&ipv6_devconf_dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
if (dflt == NULL) if (dflt == NULL)
goto err_alloc_dflt; goto err_alloc_dflt;
} else {
/* these will be inherited by all namespaces */ /* these will be inherited by all namespaces */
dflt->autoconf = ipv6_defaults.autoconf; dflt->autoconf = ipv6_defaults.autoconf;
dflt->disable_ipv6 = ipv6_defaults.disable_ipv6; dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
}
net->ipv6.devconf_all = all; net->ipv6.devconf_all = all;
net->ipv6.devconf_dflt = dflt; net->ipv6.devconf_dflt = dflt;
......
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