Re: unregister_netdevice: waiting for DEV to become free

From: Dmitry Vyukov
Date: Wed Aug 01 2018 - 05:15:07 EST


On Wed, Aug 1, 2018 at 10:57 AM, Steffen Klassert
<steffen.klassert@xxxxxxxxxxx> wrote:
> On Tue, Jul 31, 2018 at 01:31:52PM +0200, Steffen Klassert wrote:
>> On Tue, Jul 31, 2018 at 08:16:22PM +0900, Tetsuo Handa wrote:
>> > Steffen and Herbert,
>> >
>> > Do you have any question? I think I provided enough information for debugging.
>>
>> It seems that I was not on Cc at the beginning of the threat,
>> so I had to search the web for some context.
>>
>> I'm currently trying your reproducer (still with my .config) but I don't
>> hit the problem.
>
> Actually, I did not hit it because it is already fixed in my tree.
>
> It is fixed by:
>
> commit 8cc88773855f988d6a3bbf102bbd9dd9c828eb81
> xfrm: fix missing dst_release() after policy blocking lbcast and multicast
>
> This fix went to mainline on Monday.

Thanks, let's tell syzbot:

#syz fix:
xfrm: fix missing dst_release() after policy blocking lbcast and multicast