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From: Hayes Wang <hayeswang@realtek.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: syzbot <syzbot+95afd23673f5dd295c57@syzkaller.appspotmail.com>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"kuba@kernel.org" <kuba@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"syzkaller-bugs@googlegroups.com"
	<syzkaller-bugs@googlegroups.com>,
	nic_swsd <nic_swsd@realtek.com>
Subject: RE: [syzbot] WARNING in rtl8152_probe
Date: Fri, 14 May 2021 02:58:00 +0000	[thread overview]
Message-ID: <bde8fc1229ec41e99ec77f112cc5ee01@realtek.com> (raw)
In-Reply-To: <20210513142552.GA967812@rowland.harvard.edu>

Alan Stern <stern@rowland.harvard.edu>
> Sent: Thursday, May 13, 2021 10:26 PM
[...]
> Syzbot doesn't test real devices.  It tests emulations, and the emulated
> devices usually behave very strangely and in very peculiar and
> unexpected ways, so as to trigger bugs in the kernel.  That's why the
> USB devices you see in syzbot logs usually have bizarre descriptors.

Do you mean I have to debug for a device which doesn't exist?
I don't understand why I must consider a fake device
which provide unexpected USB descriptor deliberately?

Best Regards,
Hayes


  reply	other threads:[~2021-05-14  2:58 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12  9:40 [syzbot] WARNING in rtl8152_probe syzbot
2021-05-13  3:13 ` Hayes Wang
2021-05-13 14:25   ` Alan Stern
2021-05-14  2:58     ` Hayes Wang [this message]
2021-05-14  6:41       ` Dan Carpenter
2021-05-14  7:49         ` Hayes Wang
2021-05-14  6:48       ` Greg KH
2021-05-14  7:50         ` Hayes Wang
2021-05-14  8:26           ` Greg KH
2021-05-14 10:32             ` Hayes Wang
2021-05-14 15:32           ` Alan Stern
2021-05-17  1:01             ` Hayes Wang
2021-05-17 10:00               ` Oliver Neukum
2021-05-17 13:47                 ` Alan Stern

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