Re: [PATCH 14/14] drivers/tty/vt/vt.c : access out-of-bounds

From: One Thousand Gnomes
Date: Mon Mar 16 2015 - 10:59:43 EST


On Sat, 14 Mar 2015 14:46:22 +0200
Ameen Ali <ameenali023@xxxxxxxxx> wrote:

> make sure that out-of-bounds never happens
>
> Signed-off-by : Ameen Ali <AmeenAli023@xxxxxxxxx>
> ---
> drivers/tty/vt/vt.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
> index 6e00572..cf73e92 100644
> --- a/drivers/tty/vt/vt.c
> +++ b/drivers/tty/vt/vt.c
> @@ -1364,13 +1364,13 @@ static void csi_m(struct vc_data *vc)
> i++;
> if (i > vc->vc_npar)
> break;

It's checked in advance ^^^^^^^^^^^^^^^^^^^^^^^^^^


I guess whatever tool you used to verify it is concerned about the case
of i == vc->vc_npar ?

Alan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/