From: Gustavo Padovan <gustavo@padovan.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: dri-devel@lists.freedesktop.org,
Gustavo Padovan <gustavo.padovan@collabora.com>,
Daniel Vetter <daniel@ffwll.ch>,
Rafael Antognolli <rafael.antognolli@intel.com>,
stable@vger.kernel.org
Subject: Re: [PATCH] drm/fence: fix memory overwrite when setting out_fence fd
Date: Fri, 13 Jan 2017 14:56:39 -0200 [thread overview]
Message-ID: <20170113165639.GE16017@joana> (raw)
In-Reply-To: <2003560.ZPyAhlVHHW@avalon>
2017-01-13 Laurent Pinchart <laurent.pinchart@ideasonboard.com>:
> Hi Gustavo,
>
> Thank you for the patch.
>
> On Friday 13 Jan 2017 12:22:09 Gustavo Padovan wrote:
> > From: Gustavo Padovan <gustavo.padovan@collabora.com>
> >
> > Currently if the userspace declares a int variable to store the out_fence
> > fd and pass it to OUT_FENCE_PTR the kernel will overwrite the 32 bits
> > above the int variable on 64 bits systems.
> >
> > Fix this by making the internal storage of out_fence in the kernel a s32
> > pointer.
> >
> > Reported-by: Chad Versace <chadversary@chromium.org>
> > Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
> > Cc: Daniel Vetter <daniel@ffwll.ch>
> > Cc: Rafael Antognolli <rafael.antognolli@intel.com>
> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>
> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>
> > Cc: stable@vger.kernel.org
>
> I don't think this is needed, given that the code was merged in v4.10-rc1, and
> this patch should be merged as a v4.10-rc fix.
Hmm, yeah. I got confused.
Gustavo
next prev parent reply other threads:[~2017-01-13 16:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-13 14:22 [PATCH] drm/fence: fix memory overwrite when setting out_fence fd Gustavo Padovan
2017-01-13 14:22 ` Gustavo Padovan
2017-01-13 15:00 ` Laurent Pinchart
2017-01-13 15:00 ` Laurent Pinchart
2017-01-13 16:56 ` Gustavo Padovan [this message]
2017-01-13 21:27 ` Chad Versace
2017-01-13 21:27 ` Chad Versace
2017-01-16 22:24 ` Gustavo Padovan
2017-01-16 22:24 ` Gustavo Padovan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170113165639.GE16017@joana \
--to=gustavo@padovan.org \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=gustavo.padovan@collabora.com \
--cc=laurent.pinchart@ideasonboard.com \
--cc=rafael.antognolli@intel.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.