Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1285169

Re: [PATCH] ia64: bitvector_process could read out of bounds

From Peter Senna Tschudin <peter.senna@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH] ia64: bitvector_process could read out of bounds
Date 2015-12-07 11:10 +0100
Message-ID <qD0U3-37l-9@gated-at.bofh.it> (permalink)
References <qBkWT-2Tg-35@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Wed, Dec 2, 2015 at 8:07 PM, Geyslan G. Bem <geyslan@gmail.com> wrote:
> The units[] array could be accessed out of its bounds due the lack of
> verification of the max vector value.
>
> To make this function not prone to error "P" and "E" suffixes were added.
> Despite the new suffixes are unrelated to current ia64 vm magnitudes, they
> make the code ready for it and avoid misleadings.

I would mention that you also fix some white space issues, but other than that:

Acked-by: Peter Senna Tschudin <peter.senna@gmail.com>
>
> Catched using static analysis (cppcheck).
>
> Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>

> ---
>  arch/ia64/kernel/palinfo.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
> index c39c3cd..160aba1 100644
> --- a/arch/ia64/kernel/palinfo.c
> +++ b/arch/ia64/kernel/palinfo.c
> @@ -126,7 +126,7 @@ static const char *mem_attrib[]={
>  static void bitvector_process(struct seq_file *m, u64 vector)
>  {
>         int i,j;
> -       static const char *units[]={ "", "K", "M", "G", "T" };
> +       static const char *units[] = { "", "K", "M", "G", "T", "P", "E" };
>
>         for (i=0, j=0; i < 64; i++ , j=i/10) {
>                 if (vector & 0x1)
> --
> 2.6.2
>



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

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

[PATCH] ia64: bitvector_process could read out of bounds "Geyslan G. Bem" <geyslan@gmail.com> - 2015-12-02 20:10 +0100
  Re: [PATCH] ia64: bitvector_process could read out of bounds Peter Senna Tschudin <peter.senna@gmail.com> - 2015-12-07 11:10 +0100

csiph-web