Re: [PATCH] floppy: Avoid memory access beyond the array bounds in setup_rw_floppy()

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Do you mean mail client?? Well, I'm currently using gmail.

On Fri, Oct 26, 2018 at 10:41 AM Jens Axboe <axboe@xxxxxxxxx> wrote:
>
> On 10/26/18 8:39 AM, Kyungtae Kim wrote:
>
> > diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
> > index a8cfa01..41160a1 100644
> > --- a/drivers/block/floppy.c
> > +++ b/drivers/block/floppy.c
> > @@ -3146,6 +3146,9 @@ static int raw_cmd_copyin(int cmd, void __user *param,
> >                          */
> >                 return -EINVAL;
> >
> > +       if (ptr->cmd_count > ARRAY_SIZE(ptr->cmd))
> > +               return -EINVAL;
> > +
> >         for (i = 0; i < 16; i++)
> >                 ptr->reply[i] = 0;
> >         ptr->resultcode = 0;
>
> Almost there, the tabs have been turned into spaces. This could be
> a mailer issue, what are you using to send out the patch?
>
> --
> Jens Axboe
>



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