On Tue, Feb 20, 2018 at 7:17 PM, Krzysztof Kozlowski krzk@kernel.org wrote:
Driver uses alias from Device Tree as an index of pin controller data array. In case of a wrong DTB or an out-of-tree DTB, the alias could be outside of this data array leading to out-of-bounds access.
Depending on binary and memory layout, this could be handled properly (showing error like "samsung-pinctrl 3860000.pinctrl: driver data not available") or could lead to exceptions.
Reported-by: Geert Uytterhoeven geert@linux-m68k.org Cc: stable@vger.kernel.org Fixes: 30574f0db1b1 ("pinctrl: add samsung pinctrl and gpiolib driver") Signed-off-by: Krzysztof Kozlowski krzk@kernel.org
Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be
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