On Tue, 2012-07-10 at 13:05 +0200, Eric Dumazet wrote: > On Tue, 2012-07-10 at 18:44 +0800, Gao feng wrote: > > there are some out of bound accesses in netprio cgroup. > > > - update_netdev_tables(); > > + ret = extend_netdev_table(dev, max_len); > > + if (ret < 0) > > + goto out_free_devname; > > + > > ret = 0; > > rcu_read_lock(); > > map = rcu_dereference(dev->priomap); > > Its unfortunately adding a bug. > > extend_netdev_table() is protected by RTNL.
Please test your next patch using : CONFIG_LOCKDEP=y CONFIG_PROVE_RCU=y Because rtnl_dereference() should shout if you dont hold RTNL -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
