If count is 16 then this will put the NUL terminator one element beyond
the end of the array.
Fixes: cb17fe0045aa ("ALSA: control - add sysfs support to the LED trigger module")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
sound/core/control_led.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/control_led.c b/sound/core/control_led.c
index 202b475d0bf3..ab5a455723c8 100644
--- a/sound/core/control_led.c
+++ b/sound/core/control_led.c
@@ -391,7 +391,7 @@ static ssize_t store_mode(struct device *dev, struct device_attribute *attr,
{
struct snd_ctl_led *led = container_of(dev, struct snd_ctl_led, dev);
char _buf[16];
- size_t l = min(count, sizeof(_buf) - 1) + 1;
+ size_t l = min(count, sizeof(_buf) - 1);
enum snd_ctl_led_mode mode;
memcpy(_buf, buf, l);
--
2.30.2
