diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-09-13 10:52:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 14:51:07 -0700 |
| commit | 4de33238bdb4664288000a1a5592fd1f3a1455b7 (patch) | |
| tree | 911b3f444d8d91b75ae47e351794604eb63ae171 | |
| parent | a7abc25bd4142a45bbcd90281a1869850a922876 (diff) | |
ASoC: 88pm860x: array overflow in snd_soc_put_volsw_2r_st()
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@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | sound/soc/codecs/88pm860x-codec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/codecs/88pm860x-codec.c b/sound/soc/codecs/88pm860x-codec.c index 19241576b6b..8c792bb232e 100644 --- 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(struct snd_kcontrol *kcontrol, 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; |