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Date:   Fri, 5 Apr 2019 03:55:22 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     "wanghai (M)" <wanghai26@...wei.com>
Cc:     syzbot <syzbot+6024817a931b2830bc93@...kaller.appspotmail.com>,
        alexander.h.duyck@...el.com, amritha.nambiar@...el.com,
        andriy.shevchenko@...ux.intel.com, davem@...emloft.net,
        dmitry.torokhov@...il.com, f.fainelli@...il.com,
        idosch@...lanox.com, joe@...ches.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, stephen@...workplumber.org,
        syzkaller-bugs@...glegroups.com, tyhicks@...onical.com,
        yuehaibing@...wei.com, gregkh@...uxfoundation.org
Subject: Re: kernel BUG at net/core/net-sysfs.c:LINE!

On Thu, Apr 04, 2019 at 11:19:03AM +0800, wanghai (M) wrote:
> Can someone fix this issue? Thanks.

Revert the bogus patch, perhaps?  Because bogus it is - failure of
register_netdevice() should NOT drop the reference it's been given.
It's up to the caller and that's when the name will be freed.

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