[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20150324.130037.1897087027068811494.davem@davemloft.net>
Date: Tue, 24 Mar 2015 13:00:37 -0400 (EDT)
From: David Miller <davem@...emloft.net>
To: jbenc@...hat.com
Cc: netdev@...r.kernel.org, maheshb@...gle.com, dcbw@...hat.com
Subject: Re: [PATCH net] ipvlan: fix addr hash list corruption
From: Jiri Benc <jbenc@...hat.com>
Date: Mon, 23 Mar 2015 22:10:19 +0100
> @@ -504,7 +504,8 @@ static void ipvlan_link_delete(struct net_device *dev, struct list_head *head)
>
> if (ipvlan->ipv6cnt > 0 || ipvlan->ipv4cnt > 0) {
> list_for_each_entry_safe(addr, next, &ipvlan->addrs, anode) {
> - ipvlan_ht_addr_del(addr, !dev->dismantle);
> + if (netif_running(dev))
> + ipvlan_ht_addr_del(addr, !dev->dismantle);
> list_del_rcu(&addr->anode);
> }
> }
This is so error prone, because you are depending upon so many implementation
details to infer a boolean state "is this address hashed".
So just add the boolean state to struct ipvl_addr, and manage it in
the ipvlan_ht_addr_{add,del}() code.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists