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| author | Vojtech Pavlik <vojtech@suse.cz> | 2005-07-24 07:50:03 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-07-24 07:50:03 +0200 |
| commit | 5ac7ba3ff599d66ffde182676f2e4fbcac61a2fe (patch) | |
| tree | 5c8e25dc2797cb0e063c38afda2dbbf292e34bd3 /drivers/input | |
| parent | Input: i8042 - don't use negation to mark AUX data (diff) | |
| download | linux-5ac7ba3ff599d66ffde182676f2e4fbcac61a2fe.tar.xz linux-5ac7ba3ff599d66ffde182676f2e4fbcac61a2fe.zip | |
Input: check keycodesize when adjusting keymaps
When changing key mappings we need to make sure that the new
keycode value can be stored in dev->keycodesize bytes.
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/evdev.c | 1 |
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); |