From: Greg KH <gregkh@linuxfoundation.org>
To: Oliver Neukum <oneukum@suse.com>
Cc: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: Oops in 4.6-rc2: NULL pointer dereference in cdc-acm
Date: Thu, 7 Apr 2016 07:47:05 -0700 [thread overview]
Message-ID: <20160407144705.GE10853@kroah.com> (raw)
In-Reply-To: <1460012378.17679.1.camel@suse.com>
On Thu, Apr 07, 2016 at 08:59:38AM +0200, Oliver Neukum wrote:
> On Wed, 2016-04-06 at 22:48 +0200, Gabriele Mazzotta wrote:
> > Hi,
> >
> > I'm getting a kernel oops when I plug some smartphone via USB to my
> > laptop, which is currently running the v4.6-rc2.
> >
> > The problem seems to be caused by a81cf9799ad7 ("cdc-acm: implement
> > put_char() and flush_chars()").
> >
> > A simple NULL pointer check prevents the crash, but since I have no
> > use of cdc-acm and I didn't read the code, I don't know if some other
> > changes are required.
> >
> > Here below you can find the change I did to prevent the crash and
> > the dmesg showing the problem.
>
> Hi,
>
> thank you for reporting this. You are the second one to report it.
> I send a fix upstream last week.
> Greg, can we merge this for the next rc? People are hitting this
> bug.
Yes, will be sent this week, sorry for the delay.
greg k-h
prev parent reply other threads:[~2016-04-07 14:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 20:48 Oops in 4.6-rc2: NULL pointer dereference in cdc-acm Gabriele Mazzotta
2016-04-07 6:59 ` Oliver Neukum
2016-04-07 14:47 ` Greg KH [this message]
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