ACK: [PATCH] acpi: powerbutton: ensure we don't get scanf buffer overflow

[IvanHu]

On 01/09/2014 11:24 PM, Colin King wrote:
> From: Colin Ian King <colin.king at canonical.com>
>
> Signed-off-by: Colin Ian King <colin.king at canonical.com>
> ---
>   src/acpi/powerbutton/powerbutton.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/acpi/powerbutton/powerbutton.c b/src/acpi/powerbutton/powerbutton.c
> index b67cbcd..5bf14a7 100644
> --- a/src/acpi/powerbutton/powerbutton.c
> +++ b/src/acpi/powerbutton/powerbutton.c
> @@ -62,7 +62,7 @@ static int power_button_test1(fwts_framework *fw)
>   	else  {
>   		char button[4096];
>   		memset(button, 0, sizeof(button));
> -		sscanf(buffer, "%*s %s", button);
> +		sscanf(buffer, "%*s %4095s", button);
>
>   		fwts_passed(fw, "Detected %s power button event.", button);
>   	}
>

Acked-by: Ivan Hu <ivan.hu at canonical.com>