"uinfo->value.enumerated.item" is an unsigned int. If it's negative when we do the comparison: if ((int)uinfo->value.enumerated.item >= cval->max) then we would read past the end of the array on the next line. I also changed the strcpy() to strlcpy() out of paranoia. Signed-off-by: Dan Carpenter <error27@xxxxxxxxx> diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 3ed3901..93c95c5 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1642,9 +1642,10 @@ static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 1; uinfo->value.enumerated.items = cval->max; - if ((int)uinfo->value.enumerated.item >= cval->max) + if (uinfo->value.enumerated.item >= cval->max) uinfo->value.enumerated.item = cval->max - 1; - strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); + strlcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item], + sizeof(uinfo->value.enumerated.name)); return 0; } -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
