diff options
| author | Ahmad Fatoum <ahmad@a3f.at> | 2021-03-29 08:18:08 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-03-30 07:21:11 +0200 |
| commit | 100c89870c8595f9a2228750a8bc60a5ccded158 (patch) | |
| tree | ed0290c8dba6c4c63017b66808035b8d112ffbc8 /drivers | |
| parent | dd228f7615a2acefc5e29d28daa53b5ca39fe6fb (diff) | |
| download | barebox-100c89870c8595f9a2228750a8bc60a5ccded158.tar.gz barebox-100c89870c8595f9a2228750a8bc60a5ccded158.tar.xz | |
input: console: skip unmappable keys
The input console is in charge of turning input events to barebox
console keycodes. The keymap array it uses to do so has NR_KEYS
entries. Keycodes with values >= NR_KEYS can thus not be mapped.
Ignore them instead of evaluating arbitrary memory contents beyond
the buffer.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/input.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index bcc8667417..1df52f56c8 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -165,6 +165,9 @@ static void input_console_notify(struct input_notifier *in, if (ic->modstate[4] || ic->modstate[5]) modstate |= 1 << 2; + if (ev->code >= NR_KEYS) + return; + if (modstate & (1 << 1)) { ascii = keycode_bb_keys[ev->code]; ascii = ascii >= 'a' ? CTL_CH(ascii) : 0; |