[PATCH] media: dvb-usb: fix ununit-value in az6027_rc_query

From: Pavel Skripkin
Date: Fri Aug 13 2021 - 10:34:31 EST


Syzbot reported ununit-value bug in az6027_rc_query(). The problem was
in missing state pointer initialization. Since this funtion does nothing
we can simply initialize state to REMOTE_NO_KEY_PRESSED.

Fixes: 76f9a820c867 ("V4L/DVB: AZ6027: Initial import of the driver")
Reported-and-tested-by: syzbot+2cd8c5db4a85f0a04142@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Pavel Skripkin <paskripkin@xxxxxxxxx>
---
drivers/media/usb/dvb-usb/az6027.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/media/usb/dvb-usb/az6027.c b/drivers/media/usb/dvb-usb/az6027.c
index 1c39b61cde29..86788771175b 100644
--- a/drivers/media/usb/dvb-usb/az6027.c
+++ b/drivers/media/usb/dvb-usb/az6027.c
@@ -391,6 +391,7 @@ static struct rc_map_table rc_map_az6027_table[] = {
/* remote control stuff (does not work with my box) */
static int az6027_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
+ *state = REMOTE_NO_KEY_PRESSED;
return 0;
}

--
2.32.0