linux-kernel - Re: [PATCH] video: fbdev: aty: do not leak uninitialized padding in clk to userspace

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Message-id: <2710268.UQ4S50vCLC@amdc3058>
Date:   Mon, 04 Sep 2017 15:32:32 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Vladis Dronov <vdronov@...hat.com>
Cc:     linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] video: fbdev: aty: do not leak uninitialized padding in
 clk to userspace

On Tuesday, August 29, 2017 03:50:04 PM Vladis Dronov wrote:
> 'clk' is copied to a userland with padding byte(s) after 'vclk_post_div'
> field unitialized, leaking data from the stack. Fix this ensuring all of
> 'clk' is initialized to zero.
> 
> References: https://github.com/torvalds/linux/pull/441
> Reported-by: sohu0106 <sohu0106@....com>
> Signed-off-by: Vladis Dronov <vdronov@...hat.com>

Patch queued for 4.14, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics