diff options
| author | Mark Brown <broonie@kernel.org> | 2022-01-24 18:32:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-08 20:34:03 +0300 |
| commit | b0a7836ecf1345814a7d8ef748fb797c520dad18 (patch) | |
| tree | 90b4c22f2e6c2804c3c1c6bfc162e15c9e48d56f /sound | |
| parent | e8e07c5e25a29e2a6f119fd947f55d7a55eb8a13 (diff) | |
| download | linux-b0a7836ecf1345814a7d8ef748fb797c520dad18.tar.xz | |
ASoC: ops: Reject out of bounds values in snd_soc_put_xr_sx()
commit 4cf28e9ae6e2e11a044be1bcbcfa1b0d8675fe4d 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>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-ops.c | 2 |
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; |