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path: root/drivers/input/evdev.c
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Diffstat (limited to 'drivers/input/evdev.c')
-rw-r--r--drivers/input/evdev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 374f404e81da..20e3a165989f 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -320,6 +320,7 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (t < 0 || t >= dev->keycodemax || !dev->keycodesize) return -EINVAL;
if (get_user(v, ip + 1)) return -EFAULT;
if (v < 0 || v > KEY_MAX) return -EINVAL;
+ if (v >> (dev->keycodesize * 8)) return -EINVAL;
u = SET_INPUT_KEYCODE(dev, t, v);
clear_bit(u, dev->keybit);
set_bit(v, dev->keybit);