[alsa-devel] [PATCH] ALSA: synth: emux: soundfont.c: divide by zero in calc_gus_envelope_time()
Takashi Iwai
tiwai at suse.de
Mon May 6 15:01:34 CEST 2019
On Mon, 06 May 2019 14:51:19 +0200,
Dan Carpenter wrote:
>
> This function is called from load_guspatch() and the rate is specified
> by the user. If they accidentally selected zero then it would crash the
> kernel. I've just changed the zero to a one.
>
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
Thanks, applied now.
Takashi
> ---
> sound/synth/emux/soundfont.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/sound/synth/emux/soundfont.c b/sound/synth/emux/soundfont.c
> index 31a4ea94830e..9b5d70104489 100644
> --- a/sound/synth/emux/soundfont.c
> +++ b/sound/synth/emux/soundfont.c
> @@ -856,6 +856,8 @@ calc_gus_envelope_time(int rate, int start, int end)
> int r, p, t;
> r = (3 - ((rate >> 6) & 3)) * 3;
> p = rate & 0x3f;
> + if (!p)
> + p = 1;
> t = end - start;
> if (t < 0) t = -t;
> if (13 > r)
> --
> 2.18.0
>
>
More information about the Alsa-devel
mailing list