[PATCH 4/9] serial: mxs-auart: Fix out-of-bounds access through DT alias

[Geert Uytterhoeven]

On Tue, Feb 20, 2018 at 10:40 AM, Geert Uytterhoeven
<geert+renesas at glider.be> wrote:
> The auart_port[] array is indexed using a value derived from the
> "serialN" alias in DT, which may lead to an out-of-bounds access.
>
> Fix this by adding a range check.
>
> Fixes: cabf23e7aa00b145 ("serial: mxs-auart: Fix out-of-bounds access through DT alias")

Fixes: 1ea6607d4cdc9179 ("serial: mxs-auart: Allow device tree probing")

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-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