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-rw-r--r--net/unix/sysctl_net_unix.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
index 01d44e2598e2..3f1fdffd6092 100644
--- a/net/unix/sysctl_net_unix.c
+++ b/net/unix/sysctl_net_unix.c
@@ -26,11 +26,16 @@ int __net_init unix_sysctl_register(struct net *net)
{
struct ctl_table *table;
- table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
- if (table == NULL)
- goto err_alloc;
+ if (net_eq(net, &init_net)) {
+ table = unix_table;
+ } else {
+ table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
+ if (!table)
+ goto err_alloc;
+
+ table[0].data = &net->unx.sysctl_max_dgram_qlen;
+ }
- table[0].data = &net->unx.sysctl_max_dgram_qlen;
net->unx.ctl = register_net_sysctl(net, "net/unix", table);
if (net->unx.ctl == NULL)
goto err_reg;
@@ -38,7 +43,8 @@ int __net_init unix_sysctl_register(struct net *net)
return 0;
err_reg:
- kfree(table);
+ if (net_eq(net, &init_net))
+ kfree(table);
err_alloc:
return -ENOMEM;
}
@@ -49,5 +55,6 @@ void unix_sysctl_unregister(struct net *net)
table = net->unx.ctl->ctl_table_arg;
unregister_net_sysctl_table(net->unx.ctl);
- kfree(table);
+ if (!net_eq(net, &init_net))
+ kfree(table);
}