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From: Oliver Neukum <oneukum@suse.com>
To: Hui Peng <benquike@gmail.com>, Andrey Konovalov <andreyknvl@google.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
	alexios.zavras@intel.com, Thomas Gleixner <tglx@linutronix.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mathias Payer <mathias.payer@nebelwelt.net>,
	Stephen Hemminger <stephen@networkplumber.org>,
	rfontana@redhat.com,
	syzbot+44d53c7255bb1aea22d2@syzkaller.appspotmail.com,
	LKML <linux-kernel@vger.kernel.org>,
	USB list <linux-usb@vger.kernel.org>,
	netdev <netdev@vger.kernel.org>
Subject: Re: WARNING in hso_free_net_device
Date: Mon, 09 Sep 2019 11:47:24 +0200	[thread overview]
Message-ID: <1568022444.365.11.camel@suse.com> (raw)
In-Reply-To: <02ef64cc-5053-e6da-fc59-9970f48064c5@gmail.com>

Am Donnerstag, den 05.09.2019, 22:05 -0400 schrieb Hui Peng:
> 
> On 9/5/2019 7:24 AM, Andrey Konovalov wrote:
> > On Thu, Sep 5, 2019 at 4:20 AM Hui Peng <benquike@gmail.com> wrote:
> > > 
> > > Can you guys have  a look at the attached patch?
> > 
> > Let's try it:
> > 
> > #syz test: https://github.com/google/kasan.git eea39f24
> > 
> > FYI: there are two more reports coming from this driver, which might
> > (or might not) have the same root cause. One of them has a suggested
> > fix by Oliver.
> > 
> > https://syzkaller.appspot.com/bug?extid=67b2bd0e34f952d0321e
> > https://syzkaller.appspot.com/bug?extid=93f2f45b19519b289613
> > 
> 
> I think they are different, though similar.
> This one is resulted from unregistering a network device.
> These 2 are resulted from unregistering a tty device.

Hi,

looks like it. That may indeed be the issue.
Please try to have syzbot test your patch and we will
know more.

	Regards
		Oliver


      reply	other threads:[~2019-09-09  9:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-03 12:08 WARNING in hso_free_net_device syzbot
2019-09-04 20:27 ` Hui Peng
2019-09-04 22:41   ` Stephen Hemminger
2019-09-05  2:20     ` Hui Peng
2019-09-05 11:24       ` Andrey Konovalov
2019-09-05 11:47         ` syzbot
2019-09-06  2:05         ` Hui Peng
2019-09-09  9:47           ` Oliver Neukum [this message]

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