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ASoC: ops: Reject out of bounds values in snd_soc_put_xr_sx()

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commit 4cf28e9ae6 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mark Brown 2022-01-24 15:32:53 +00:00 • committed by Greg Kroah-Hartman
commit 6877f87579
1 changed files with 2 additions and 0 deletions
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sound/soc/soc-ops.c
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@ -880,6 +880,8 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
unsigned int i, regval, regmask;
int err;
if (val < mc->min || val > mc->max)
return -EINVAL;
if (invert)
val = max - val;
val &= mask;