* [PATCH] ALSA: dice: fix a bounds check in snd_dice_detect_tcelectronic_formats()
@ 2018-05-18 9:16 Dan Carpenter
2018-05-18 11:36 ` Takashi Sakamoto
2018-05-18 11:39 ` Takashi Iwai
0 siblings, 2 replies; 3+ messages in thread
From: Dan Carpenter @ 2018-05-18 9:16 UTC (permalink / raw)
To: Clemens Ladisch
Cc: alsa-devel, Takashi Sakamoto, kernel-janitors, Takashi Iwai
The "entry" pointer is always non-NULL so this test for out of bounds
won't work.
Fixes: f1f0f330b1d0 ("ALSA: dice: add parameters of stream formats for models produced by TC Electronic")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/sound/firewire/dice/dice-tcelectronic.c b/sound/firewire/dice/dice-tcelectronic.c
index af8203b9d1a6..e134a5110c6c 100644
--- a/sound/firewire/dice/dice-tcelectronic.c
+++ b/sound/firewire/dice/dice-tcelectronic.c
@@ -75,13 +75,12 @@ int snd_dice_detect_tcelectronic_formats(struct snd_dice *dice)
}
}
- entry = NULL;
for (i = 0; i < ARRAY_SIZE(entries); ++i) {
entry = entries + i;
if (entry->model_id = model_id)
break;
}
- if (!entry)
+ if (i = ARRAY_SIZE(entries))
return -ENODEV;
memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] ALSA: dice: fix a bounds check in snd_dice_detect_tcelectronic_formats()
2018-05-18 9:16 [PATCH] ALSA: dice: fix a bounds check in snd_dice_detect_tcelectronic_formats() Dan Carpenter
@ 2018-05-18 11:36 ` Takashi Sakamoto
2018-05-18 11:39 ` Takashi Iwai
1 sibling, 0 replies; 3+ messages in thread
From: Takashi Sakamoto @ 2018-05-18 11:36 UTC (permalink / raw)
To: Dan Carpenter, Clemens Ladisch; +Cc: alsa-devel, kernel-janitors, Takashi Iwai
Hi,
On May 18 2018 18:16, Dan Carpenter wrote:
> The "entry" pointer is always non-NULL so this test for out of bounds
> won't work.
>
> Fixes: f1f0f330b1d0 ("ALSA: dice: add parameters of stream formats for models produced by TC Electronic")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/sound/firewire/dice/dice-tcelectronic.c b/sound/firewire/dice/dice-tcelectronic.c
> index af8203b9d1a6..e134a5110c6c 100644
> --- a/sound/firewire/dice/dice-tcelectronic.c
> +++ b/sound/firewire/dice/dice-tcelectronic.c
> @@ -75,13 +75,12 @@ int snd_dice_detect_tcelectronic_formats(struct snd_dice *dice)
> }
> }
>
> - entry = NULL;
> for (i = 0; i < ARRAY_SIZE(entries); ++i) {
> entry = entries + i;
> if (entry->model_id = model_id)
> break;
> }
> - if (!entry)
> + if (i = ARRAY_SIZE(entries))
> return -ENODEV;
>
> memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
Oops, indeed.
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Thanks
Takashi Sakamoto
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] ALSA: dice: fix a bounds check in snd_dice_detect_tcelectronic_formats()
2018-05-18 9:16 [PATCH] ALSA: dice: fix a bounds check in snd_dice_detect_tcelectronic_formats() Dan Carpenter
2018-05-18 11:36 ` Takashi Sakamoto
@ 2018-05-18 11:39 ` Takashi Iwai
1 sibling, 0 replies; 3+ messages in thread
From: Takashi Iwai @ 2018-05-18 11:39 UTC (permalink / raw)
To: Dan Carpenter
Cc: kernel-janitors, alsa-devel, Takashi Sakamoto, Clemens Ladisch
On Fri, 18 May 2018 11:16:07 +0200,
Dan Carpenter wrote:
>
> The "entry" pointer is always non-NULL so this test for out of bounds
> won't work.
>
> Fixes: f1f0f330b1d0 ("ALSA: dice: add parameters of stream formats for models produced by TC Electronic")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Applied, thanks.
Takashi
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-05-18 9:16 [PATCH] ALSA: dice: fix a bounds check in snd_dice_detect_tcelectronic_formats() Dan Carpenter
2018-05-18 11:36 ` Takashi Sakamoto
2018-05-18 11:39 ` Takashi Iwai
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