linux-kernel - [PATCH 5.16 0340/1017] ASoC: codecs: va-macro: fix accessing array out of bounds for enum type

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Date:   Tue,  5 Apr 2022 09:20:53 +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 0340/1017] ASoC: codecs: va-macro: fix accessing array out of bounds for enum type

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

[ Upstream commit 0ea5eff7c6063a8f124188424f8e4c6727f35051 ]

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: 908e6b1df26e ("ASoC: codecs: lpass-va-macro: Add support to VA Macro")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Link: https://lore.kernel.org/r/20220222183212.11580-5-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/lpass-va-macro.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/lpass-va-macro.c b/sound/soc/codecs/lpass-va-macro.c
index 11147e35689b..e14c277e6a8b 100644
--- a/sound/soc/codecs/lpass-va-macro.c
+++ b/sound/soc/codecs/lpass-va-macro.c
@@ -780,7 +780,7 @@ static int va_macro_dec_mode_get(struct snd_kcontrol *kcontrol,
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 	int path = e->shift_l;
 
-	ucontrol->value.integer.value[0] = va->dec_mode[path];
+	ucontrol->value.enumerated.item[0] = va->dec_mode[path];
 
 	return 0;
 }
@@ -789,7 +789,7 @@ static int va_macro_dec_mode_put(struct snd_kcontrol *kcontrol,
 				 struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
-	int value = ucontrol->value.integer.value[0];
+	int value = ucontrol->value.enumerated.item[0];
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 	int path = e->shift_l;
 	struct va_macro *va = snd_soc_component_get_drvdata(comp);
-- 
2.34.1