From 3b892467786410f26dffc2c7bccd3ea445604037 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 15 Nov 2007 16:17:24 +0100 Subject: [ALSA] Check value range in ctl callbacks Check the value ranges in ctl put callbacks properly (in the rest drivers). Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/isa/opti9xx/miro.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'sound/isa') diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c index d295936611f..c2baf4cfb95 100644 --- a/sound/isa/opti9xx/miro.c +++ b/sound/isa/opti9xx/miro.c @@ -483,6 +483,10 @@ static int snd_miro_put_double(struct snd_kcontrol *kcontrol, /* equalizer elements */ + if (left < -0x7f || left > 0x7f || + right < -0x7f || right > 0x7f) + return -EINVAL; + if (left_old > 0x80) left_old = 0x80 - left_old; if (right_old > 0x80) @@ -520,6 +524,10 @@ static int snd_miro_put_double(struct snd_kcontrol *kcontrol, /* non-equalizer elements */ + if (left < 0 || left > 0x20 || + right < 0 || right > 0x20) + return -EINVAL; + left_old = 0x20 - left_old; right_old = 0x20 - right_old; -- cgit v1.2.3-70-g09d2