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From: Brooke Basile <brookebasile@gmail.com>
To: Dmitry Vyukov <dvyukov@google.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrey Konovalov <andreyknvl@google.com>,
	syzbot <syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
	USB list <linux-usb@vger.kernel.org>,
	linux-kernel-mentees@lists.linuxfoundation.org
Subject: Re: [Linux-kernel-mentees] INFO: trying to register non-static key in ath9k_htc_rxep
Date: Wed, 23 Sep 2020 13:42:55 -0400	[thread overview]
Message-ID: <f66a9255-80d9-fbed-f99c-3c64ee060146@gmail.com> (raw)
In-Reply-To: <CACT4Y+YQf8NJTy9=UUrLiZidV8won0QCYmnVBy-5DFVXumRAPQ@mail.gmail.com>

On 9/22/20 3:38 AM, Dmitry Vyukov wrote:
> On Tue, Sep 22, 2020 at 9:26 AM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
>>
>> On Tue, Sep 22, 2020 at 08:49:39AM +0200, Dmitry Vyukov wrote:
>>> On Tue, Sep 22, 2020 at 8:21 AM syzbot
>>> <syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com> wrote:
>>>>
>>>> Hello,
>>>>
>>>> syzbot has tested the proposed patch and the reproducer did not trigger any issue:
>>>>
>>>> Reported-and-tested-by: syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com
>>>>
>>>> Tested on:
>>>>
>>>> commit:         98477740 Merge branch 'rcu/urgent' of git://git.kernel.org..
>>>> git tree:       upstream
>>>> kernel config:  https://syzkaller.appspot.com/x/.config?x=2c523334171d074
>>>> dashboard link: https://syzkaller.appspot.com/bug?extid=4d2d56175b934b9a7bf9
>>>> compiler:       gcc (GCC) 10.1.0-syz 20200507
>>>>
>>>> Note: testing is done by a robot and is best-effort only.
>>>
>>> Hi Brooke,
>>>
>>> As far as I understand, UBS is currently completely broken on upstream
>>> HEAD, so testing any USB bugs on upstream HEAD will lead to false
>>> positive results only.
>>
>> Broken in what way?  I don't see any bug reports here...
> 
> I mean this "USB driver ID matching broke":
> https://groups.google.com/g/syzkaller/c/VKfxh__m05w/m/ArzTtar-AgAJ
> syzkaller can't test usb, nor reproduce any existing bugs on the upstream tree.
> 

Hi Dmitry,

Thanks for the heads up and for the link to the thread with the information.

I recently fixed the following bug:
https://syzkaller.appspot.com/bug?id=cabffad18eb74197f84871802fd2c5117b61febf

I tested this on my local syzkaller instance before sending it in to 
syzbot and the kernel panic was resolved, however I did get "-busid- is 
not in match_busid table... skip!" in dmesg-- should this be taken as a 
false positive as well?

Best,
Brooke Basile
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  reply	other threads:[~2020-09-23 17:43 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <13659a4e-ad71-0cef-4bfa-3eb4b8c73f4b@gmail.com>
     [not found] ` <000000000000cce55c05afe0f8f0@google.com>
2020-09-22  6:49   ` Dmitry Vyukov via Linux-kernel-mentees
2020-09-22  7:26     ` Greg Kroah-Hartman
2020-09-22  7:38       ` Dmitry Vyukov via Linux-kernel-mentees
2020-09-23 17:42         ` Brooke Basile [this message]
2020-09-23 18:06           ` Andrey Konovalov via Linux-kernel-mentees
2020-09-23 18:28             ` Brooke Basile
2020-09-23 18:32               ` Andrey Konovalov via Linux-kernel-mentees

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