From: Oliver Neukum <oneukum@suse.com>
To: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Cc: gregkh@linuxfoundation.org, 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, 07 Apr 2016 08:59:38 +0200 [thread overview]
Message-ID: <1460012378.17679.1.camel@suse.com> (raw)
In-Reply-To: <5705762E.4040206@gmail.com>
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.
Regards
Oliver
next prev parent reply other threads:[~2016-04-07 6:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 20:48 Gabriele Mazzotta
2016-04-07 6:59 ` Oliver Neukum [this message]
2016-04-07 14:47 ` Greg KH
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