net: fib_rules ordering fixes.
We need to setup the network namespace state before we register
the notifier. Otherwise if a network device is already registered
we get a nasty NULL pointer dereference.
Signed-off-by: Eric W. Biederman <ebiederm@maxwell.aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 79de3b1..32b3a01 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -664,17 +664,18 @@
rtnl_register(PF_UNSPEC, RTM_DELRULE, fib_nl_delrule, NULL);
rtnl_register(PF_UNSPEC, RTM_GETRULE, NULL, fib_nl_dumprule);
- err = register_netdevice_notifier(&fib_rules_notifier);
+ err = register_pernet_subsys(&fib_rules_net_ops);
if (err < 0)
goto fail;
- err = register_pernet_subsys(&fib_rules_net_ops);
+ err = register_netdevice_notifier(&fib_rules_notifier);
if (err < 0)
goto fail_unregister;
+
return 0;
fail_unregister:
- unregister_netdevice_notifier(&fib_rules_notifier);
+ unregister_pernet_subsys(&fib_rules_net_ops);
fail:
rtnl_unregister(PF_UNSPEC, RTM_NEWRULE);
rtnl_unregister(PF_UNSPEC, RTM_DELRULE);