[alsa-devel] [patch] ALSA: ak4xx-adda: info leak in ak4xxx_capture_source_info()

"idx" is controled by the user and can be a negative offset into the input_names[] array.

Signed-off-by: Dan Carpenter dan.carpenter@oracle.com

diff --git a/sound/i2c/other/ak4xxx-adda.c b/sound/i2c/other/ak4xxx-adda.c index cef813d2..ed726d1 100644 --- a/sound/i2c/other/ak4xxx-adda.c +++ b/sound/i2c/other/ak4xxx-adda.c @@ -571,7 +571,7 @@ static int ak4xxx_capture_source_info(struct snd_kcontrol *kcontrol, struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); int mixer_ch = AK_GET_SHIFT(kcontrol->private_value); const char **input_names; - int num_names, idx; + unsigned int num_names, idx;

num_names = ak4xxx_capture_num_inputs(ak, mixer_ch); if (!num_names)