From: Mark Brown Date: Sun, 26 Feb 2023 12:47:57 +0000 (+0000) Subject: ASoC: mt6358: Validate Wake on Voice 2 writes X-Git-Tag: v6.6-pxa1908~1719^2~4^2~4^2~1 X-Git-Url: https://git.dujemihanovic.xyz/?a=commitdiff_plain;h=8e847a43c28fca0aaa11fba8f91da7dfd9d6936f;p=linux.git ASoC: mt6358: Validate Wake on Voice 2 writes Currently the Wake on Voice 2 control accepts and stores any value written but it reports that only 0 and 1 are valid values. Reject any out of range values written by userspace. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20230224-asoc-mt6358-quick-fixes-v1-2-747d9186be4b@kernel.org Signed-off-by: Mark Brown --- diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c index 9004377461f7..89d0dcb2635b 100644 --- a/sound/soc/codecs/mt6358.c +++ b/sound/soc/codecs/mt6358.c @@ -560,6 +560,9 @@ static int mt6358_put_wov(struct snd_kcontrol *kcontrol, struct mt6358_priv *priv = snd_soc_component_get_drvdata(c); int enabled = ucontrol->value.integer.value[0]; + if (enabled < 0 || enabled > 1) + return -EINVAL; + if (priv->wov_enabled != enabled) { if (enabled) mt6358_enable_wov_phase2(priv);