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SubjectRe: net/core: BUG in unregister_netdevice_many
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From: Cong Wang <xiyou.wangcong@gmail.com>
Date: Fri, 21 Apr 2017 11:55:04 -0700

> On Fri, Apr 21, 2017 at 10:25 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
>> On Fri, Apr 21, 2017 at 5:48 AM, Andrey Konovalov <andreyknvl@google.com> wrote:
>>>
>>> I've got the following error report while fuzzing the kernel with syzkaller.
>>>
>>> ------------[ cut here ]------------
>>> kernel BUG at net/core/dev.c:6813!
>>
>> Another useless BUG_ON() that
>
> I think we are double-unregister'ing the pim6reg device,
> we probably need something like:

This particular bug is fixed by Nikolay's fix.

I'm not saying you haven't spotted another bug.

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