linux-kernel - Re: [PATCH] pinctrl: nuvoton: wpcm450: fix out of bounds write

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Message-ID: <CACRpkdayD_47kvwDgS+7N01qsUT+DoNqz+jODb5g2uT74Byycw@mail.gmail.com>
Date:   Tue, 12 Sep 2023 09:04:07 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Mikhail Kobuk <m.kobuk@...ras.ru>
Cc:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        openbmc@...ts.ozlabs.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org,
        Alexey Khoroshilov <khoroshilov@...ras.ru>
Subject: Re: [PATCH] pinctrl: nuvoton: wpcm450: fix out of bounds write

On Fri, Aug 25, 2023 at 12:15 PM Mikhail Kobuk <m.kobuk@...ras.ru> wrote:

> Write into 'pctrl->gpio_bank' happens before the check for GPIO index
> validity, so out of bounds write may happen.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: a1d1e0e3d80a ("pinctrl: nuvoton: Add driver for WPCM450")
> Signed-off-by: Mikhail Kobuk <m.kobuk@...ras.ru>
> Reviewed-by: Alexey Khoroshilov <khoroshilov@...ras.ru>

Patch applied for fixes.

Yours,
Linus Walleij