linux-kernel - Re: [PATCH RESEND v3 0/5] media: uvcvideo: Fix race conditions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <YEsZ7qnSRv0EkJGG@atmark-techno.com>
Date:   Fri, 12 Mar 2021 16:36:14 +0900
From:   Dominique MARTINET <dominique.martinet@...ark-techno.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@....fi>,
        linux-uvc-devel@...ts.sourceforge.net, linux-usb@...r.kernel.org,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3 0/5] media: uvcvideo: Fix race conditions

Hi,

Guenter Roeck wrote on Thu, Sep 17, 2020 at 07:16:17PM -0700:
> On 9/17/20 5:47 AM, Laurent Pinchart wrote:
> > On Wed, Sep 16, 2020 at 07:25:42PM -0700, Guenter Roeck wrote:
> >> Something seems to have gone wrong with v3 of this patch series.
> >> I am sure I sent it out, but I don't find it anywhere.
> >> Resending. Sorry for any duplicates.
> > 
> > I haven't checked the mailing list, but I've found it in my inbox :-)
> > I'm not forgetting about you, just been fairly busy recently. I still
> > plan to try and provide an alternative implementation in the V4L2 core
> > (in a form that I think should even be moved to the cdev core) that
> > would fix this for all drivers.
> > 
> Thanks for letting me know. As it turns out, this problem is responsible
> for about 2% of all Chromebook crashes, so I'll probably not wait for
> the series to be accepted upstream but apply it as-is to the various
> ChromeOS kernel branches.

We have a customer who reported the same issue recently, has there been
any development?

I don't see anything in either uvc nor v4l2 that would address the race
since this mail half a year ago (well, I could have missed it ;))


If nothing happened I'll probably backport this series as well, at which
point it might make more sense to take it in until a better fix gets
here then revert it...


Thanks!
-- 
Dominique