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List: linux-kernel
Subject: Re: [PATCH] video: fbdev: aty: do not leak uninitialized padding in clk to userspace
From: Bartlomiej Zolnierkiewicz <b.zolnierkie () samsung ! com>
Date: 2017-09-04 13:32:32
Message-ID: 2710268.UQ4S50vCLC () amdc3058
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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@126.com>
> Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Patch queued for 4.14, thanks.
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
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