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Message-Id: <20131011193212.868470649@linuxfoundation.org>
Date: Fri, 11 Oct 2013 12:35:02 -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: [ 18/39] ASoC: 88pm860x: array overflow in snd_soc_put_volsw_2r_st()
3.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@...cle.com>
commit d967967e8d1116fb38bad25e58714b5dddd03cca upstream.
This is called from snd_ctl_elem_write() with user supplied data so we
need to add some bounds checking.
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/88pm860x-codec.c | 3 +++
1 file changed, 3 insertions(+)
--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -350,6 +350,9 @@ static int snd_soc_put_volsw_2r_st(struc
val = ucontrol->value.integer.value[0];
val2 = ucontrol->value.integer.value[1];
+ if (val >= ARRAY_SIZE(st_table) || val2 >= ARRAY_SIZE(st_table))
+ return -EINVAL;
+
err = snd_soc_update_bits(codec, reg, 0x3f, st_table[val].m);
if (err < 0)
return err;
--
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