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authorMark Brown <broonie@kernel.org>2022-01-24 18:32:53 +0300
committerMark Brown <broonie@kernel.org>2022-01-25 13:21:36 +0300
commit4cf28e9ae6e2e11a044be1bcbcfa1b0d8675fe4d (patch)
tree238ecaaa937e88666176715641c80a450e246685 /sound/soc/soc-ops.c
parent4f1e50d6a9cf9c1b8c859d449b5031cacfa8404e (diff)
downloadlinux-4cf28e9ae6e2e11a044be1bcbcfa1b0d8675fe4d.tar.xz
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>
Diffstat (limited to 'sound/soc/soc-ops.c')
-rw-r--r--sound/soc/soc-ops.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index c31e63b27193..dc0e7c8d31f3 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;