linux-kernel - Re: [PATCH] media: pvrusb2: use a different format for warnings

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Message-ID: <CAAeHK+w-Ok_3_ath67u5=J71cd7pEBw5iobFj_2VLhH6ZcqeCw@mail.gmail.com>
Date:   Wed, 19 Jun 2019 16:31:44 +0200
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     USB list <linux-usb@...r.kernel.org>, linux-media@...r.kernel.org,
        Alan Stern <stern@...land.harvard.edu>,
        Mike Isely <isely@...ox.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        syzbot <syzbot+af8f8d2ac0d39b0ed3a0@...kaller.appspotmail.com>,
        syzbot <syzbot+170a86bf206dd2c6217e@...kaller.appspotmail.com>
Subject: Re: [PATCH] media: pvrusb2: use a different format for warnings

On Wed, Jun 19, 2019 at 4:30 PM Andrey Konovalov <andreyknvl@...gle.com> wrote:
>
> On Thu, May 2, 2019 at 6:39 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > On Thu, May 02, 2019 at 06:09:26PM +0200, Andrey Konovalov wrote:
> > > When the pvrusb2 driver detects that there's something wrong with the
> > > device, it prints a warning message. Right now those message are
> > > printed in two different formats:
> > >
> > > 1. ***WARNING*** message here
> > > 2. WARNING: message here
> > >
> > > There's an issue with the second format. Syzkaller recognizes it as a
> > > message produced by a WARN_ON(), which is used to indicate a bug in the
> > > kernel. However pvrusb2 prints those warnings to indicate an issue with
> > > the device, not the bug in the kernel.
> > >
> > > This patch changes the pvrusb2 driver to consistently use the first
> > > warning message format. This will unblock syzkaller testing of this
> > > driver.
> > >
> > > Reported-by: syzbot+af8f8d2ac0d39b0ed3a0@...kaller.appspotmail.com
> > > Reported-by: syzbot+170a86bf206dd2c6217e@...kaller.appspotmail.com
> > > Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
> >
> > Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>
> I don't think I see this patch picked up anywhere. Should this fix go
> through the USB or some media tree?

Ah, found something here:
https://www.spinics.net/lists/linux-media/msg151398.html

I guess it'll go in with 5.3.