[PATCH] pinctrl: stm32: fix array read out of bound

[Linus Walleij]

On Tue, Nov 7, 2023 at 12:06 PM Antonio Borneo
<antonio.borneo at foss.st.com> wrote:

> The existing code does not verify if the "tentative" index exceeds
> the size of the array, causing out of bound read.
> Issue identified with kasan.
>
> Check the index before using it.
>
> Signed-off-by: Antonio Borneo <antonio.borneo at foss.st.com>
> Fixes: 32c170ff15b0 ("pinctrl: stm32: set default gpio line names using pin names")

Patch applied for fixes.

And now I feel better about that I spent so much time porting Kasan to ARM32.

Yours,
Linus Walleij