On Wed, Aug 6, 2014 at 12:51 PM, Thomas Graf <tgraf@suug.ch> wrote:
> On 08/06/14 at 10:52am, Cong Wang wrote:
>>
>> Looks like we should hold rcu_read_lock() before calling __netlink_diag_dump().
>
> netlink_diag_dump() still acquires nl_table_lock which is pointless as
> a separate mutex has been introduced to protect mutations. I will send
> a patch to RCU'ify it properly.

Agreed, but that's likely a net-next material.

I think we need the following quick fix for net.