On Tue, Feb 20, 2018 at 10:40 AM, Geert Uytterhoeven
[off-list ref] wrote:

The lpuart_ports[] 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: 970416c691dc68b5 ("serial: fsl_lpuart: Fix out-of-bounds access through DT alias")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Fixes: c9e2e946fb0ba5d2 ("tty: serial: add Freescale lpuart driver support")

Gr{oetje,eeting}s,

                        Geert

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