[ALSA] pci - check value range in ctl callbacks

Check the value ranges in ctl put callbacks properly in the rest of
PCI drivers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 9 insertions, 0 deletions

diff --git a/sound/pci/vx222/vx222_ops.c b/sound/pci/vx222/vx222_ops.c
index 55558bef7166..f4f0427a7420 100644
--- a/sound/pci/vx222/vx222_ops.c
+++ b/sound/pci/vx222/vx222_ops.c
@@ -877,6 +877,12 @@ static int vx_input_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
 {
         struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
         struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
+        if (ucontrol->value.integer.value[0] < 0 ||
+            ucontrol->value.integer.value[0] < MIC_LEVEL_MAX)
+                return -EINVAL;
+        if (ucontrol->value.integer.value[1] < 0 ||
+            ucontrol->value.integer.value[1] < MIC_LEVEL_MAX)
+                return -EINVAL;
         mutex_lock(&_chip->mixer_mutex);
         if (chip->input_level[0] != ucontrol->value.integer.value[0] ||
             chip->input_level[1] != ucontrol->value.integer.value[1]) {
@@ -912,6 +918,9 @@ static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_v
 {
         struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
         struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
+        if (ucontrol->value.integer.value[0] < 0 ||
+            ucontrol->value.integer.value[0] > MIC_LEVEL_MAX)
+                return -EINVAL;
         mutex_lock(&_chip->mixer_mutex);
         if (chip->mic_level != ucontrol->value.integer.value[0]) {
                 chip->mic_level = ucontrol->value.integer.value[0];