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Message-ID: <lsq.1382345188.803170454@decadent.org.uk> Date: Mon, 21 Oct 2013 09:46:28 +0100 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org CC: akpm@...ux-foundation.org, "Dan Carpenter" <dan.carpenter@...cle.com>, "Mark Brown" <broonie@...aro.org> Subject: [PATCH 3.2 074/149] ASoC: 88pm860x: array overflow in snd_soc_put_volsw_2r_st() 3.2.52-rc1 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: Ben Hutchings <ben@...adent.org.uk> --- 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 @@ -351,6 +351,9 @@ 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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