ASoC: ops: Reject out of bounds values in snd_soc_put_xr_sx()
We don't currently validate that the values being set are within the range
we advertised to userspace as being valid, do so and reject any values
that are out of range.
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220124153253.3548853-4-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index c31e63b..dc0e7c8 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -879,6 +879,8 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
long val = ucontrol->value.integer.value[0];
unsigned int i;
+ if (val < mc->min || val > mc->max)
+ return -EINVAL;
if (invert)
val = max - val;
val &= mask;