linux-kernel - Re: WARNING in hwahc

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Message-ID: <CADG63jD5vHoTqfmqeRjcYniBLk8reBRfKy+=ZT2aJfcRDa4S6A@mail.gmail.com>
Date:   Sun, 22 Mar 2020 16:15:28 +0800
From:   Qiujun Huang <anenbupt@...il.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     syzbot <syzbot+df767d588771697b0433@...kaller.appspotmail.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        tranmanphong@...il.com
Subject: Re: WARNING in hwahc_probe

On Sun, Mar 22, 2020 at 3:58 PM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Sun, Mar 22, 2020 at 03:53:44PM +0800, Qiujun Huang wrote:
> > The return value of snprintf is longer than expected if the string is
> > truncated. Bytes need to be checked here.
> >
> > diff --git a/drivers/staging/wusbcore/host/hwa-hc.c
> > b/drivers/staging/wusbcore/host/hwa-hc.c
> > index 8d959e9..1475a48 100644
> > --- a/drivers/staging/wusbcore/host/hwa-hc.c
> > +++ b/drivers/staging/wusbcore/host/hwa-hc.c
>
> This file is no longer in the linux-next tree and will be deleted in the
> next kernel release.
>
> Also, no one has this hardware so there's no real security issue here at
> all.
>
> And finally, you forgot a signed-off-by line on your patch :(

Get that, thanks.

>
> thanks,
>
> greg k-h