linux-kernel - Re: [PATCH] pinctrl: freescale: Fix a memory out of bounds when num

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Date:   Tue, 2 May 2023 18:27:40 +0300
From:   andy.shevchenko@...il.com
To:     Xiaolei Wang <xiaolei.wang@...driver.com>
Cc:     aisheng.dong@....com, festevam@...il.com, shawnguo@...nel.org,
        ping.bai@....com, kernel@...gutronix.de, linus.walleij@...aro.org,
        peng.fan@....com, shenwei.wang@....com,
        bartosz.golaszewski@...aro.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pinctrl: freescale: Fix a memory out of bounds when
 num_configs is 1

Mon, May 01, 2023 at 10:41:39PM +0800, Xiaolei Wang kirjoitti:
> The config passed in by pad wakeup is 1, When num_configs is 1,
> configs[1] should not be obtained, which will generate the
> following memory out-of-bounds situation:

> BUG: KASAN: stack out of bounds in imx_pinconf_set_scu+0x9c/0x160
>   Read size 8 at address ffff8000104c7558 by task sh/664
>     CPU: 3 PID: 664 Communication: sh Tainted: G WC 6.1.20 #1
>      Hardware name: Freescale i.MX8QM MEK (DT)
>   Call trace:

Please, read this
https://kernel.org/doc/html/latest/process/submitting-patches.html#backtraces-in-commit-messages
and update accordingly.

-- 
With Best Regards,
Andy Shevchenko