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Message-Id: <20131011193212.757480372@linuxfoundation.org>
Date: Fri, 11 Oct 2013 12:35:01 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
Mark Brown <broonie@...aro.org>
Subject: [ 17/39] ASoC: max98095: a couple array underflows
3.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@...cle.com>
commit f8d7b13e14357ed19d2ca2799539600418dc3939 upstream.
The ->put() function are called from snd_ctl_elem_write() with user
supplied data. The limit checks here could underflow leading to a
crash.
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Mark Brown <broonie@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
sound/soc/codecs/max98095.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -1865,7 +1865,7 @@ static int max98095_put_eq_enum(struct s
struct max98095_pdata *pdata = max98095->pdata;
int channel = max98095_get_eq_channel(kcontrol->id.name);
struct max98095_cdata *cdata;
- int sel = ucontrol->value.integer.value[0];
+ unsigned int sel = ucontrol->value.integer.value[0];
struct max98095_eq_cfg *coef_set;
int fs, best, best_val, i;
int regmask, regsave;
@@ -2011,7 +2011,7 @@ static int max98095_put_bq_enum(struct s
struct max98095_pdata *pdata = max98095->pdata;
int channel = max98095_get_bq_channel(kcontrol->id.name);
struct max98095_cdata *cdata;
- int sel = ucontrol->value.integer.value[0];
+ unsigned int sel = ucontrol->value.integer.value[0];
struct max98095_biquad_cfg *coef_set;
int fs, best, best_val, i;
int regmask, regsave;
--
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