linux-kernel - [PATCH 5.16 0339/1017] ASoC: codecs: rx-macro: fix accessing array out of bounds for enum type

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Date:   Tue,  5 Apr 2022 09:20:52 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0339/1017] ASoC: codecs: rx-macro: fix accessing array out of bounds for enum type

From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

[ Upstream commit bcfe5f76cc4051ea3f9eb5d2c8ea621641f290a5 ]

Accessing enums using integer would result in array out of bounds access
on platforms like aarch64 where sizeof(long) is 8 compared to enum size
which is 4 bytes.

Fixes: 4f692926f562 ("ASoC: codecs: lpass-rx-macro: add dapm widgets and route")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Link: https://lore.kernel.org/r/20220222183212.11580-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/lpass-rx-macro.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c
index 32e85d2e9b90..3a3dc0539d92 100644
--- a/sound/soc/codecs/lpass-rx-macro.c
+++ b/sound/soc/codecs/lpass-rx-macro.c
@@ -2272,7 +2272,7 @@ static int rx_macro_mux_get(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_soc_dapm_to_component(widget->dapm);
 	struct rx_macro *rx = snd_soc_component_get_drvdata(component);
 
-	ucontrol->value.integer.value[0] =
+	ucontrol->value.enumerated.item[0] =
 			rx->rx_port_value[widget->shift];
 	return 0;
 }
@@ -2284,7 +2284,7 @@ static int rx_macro_mux_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_soc_dapm_to_component(widget->dapm);
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 	struct snd_soc_dapm_update *update = NULL;
-	u32 rx_port_value = ucontrol->value.integer.value[0];
+	u32 rx_port_value = ucontrol->value.enumerated.item[0];
 	u32 aif_rst;
 	struct rx_macro *rx = snd_soc_component_get_drvdata(component);
 
@@ -2396,7 +2396,7 @@ static int rx_macro_get_hph_pwr_mode(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct rx_macro *rx = snd_soc_component_get_drvdata(component);
 
-	ucontrol->value.integer.value[0] = rx->hph_pwr_mode;
+	ucontrol->value.enumerated.item[0] = rx->hph_pwr_mode;
 	return 0;
 }
 
@@ -2406,7 +2406,7 @@ static int rx_macro_put_hph_pwr_mode(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct rx_macro *rx = snd_soc_component_get_drvdata(component);
 
-	rx->hph_pwr_mode = ucontrol->value.integer.value[0];
+	rx->hph_pwr_mode = ucontrol->value.enumerated.item[0];
 	return 0;
 }
 
-- 
2.34.1