linux-kernel - Re: [PATCH] mmc: dw_mmc-k3: Fix out-of-bounds access through DT alias

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Message-ID: <CAMuHMdWa5RgkGCAucN5ykGRW=FdHUZw=+t5jMAsKhdixMUSQzQ@mail.gmail.com>
Date:   Tue, 20 Feb 2018 11:50:40 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Jaehoon Chung <jh80.chung@...sung.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Linux MMC List <linux-mmc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: dw_mmc-k3: Fix out-of-bounds access through DT alias

On Tue, Feb 20, 2018 at 10:03 AM, Geert Uytterhoeven
<geert+renesas@...der.be> wrote:
> The hs_timing_cfg[] array is indexed using a value derived from the
> "mshcN" alias in DT, which may lead to an out-of-bounds access.
>
> Fix this by adding a range check.
>
> Fixes: 7d92895208a008a2 ("mmc: dw_mmc-k3: Fix out-of-bounds access through DT alias")

Oops

Fixes: 361c7fe9b02eee7e ("mmc: dw_mmc-k3: add sd support for hi3660")

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds