This is a note to let you know that I've just added the patch titled media: dvb-usb: fix ununit-value in az6027_rc_query to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: media-dvb-usb-fix-ununit-value-in-az6027_rc_query.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 808787da05fea38a14f02a7686556aa11010f4dd Author: Pavel Skripkin <paskripkin@xxxxxxxxx> Date: Fri Aug 13 16:34:20 2021 +0200 media: dvb-usb: fix ununit-value in az6027_rc_query [ Upstream commit afae4ef7d5ad913cab1316137854a36bea6268a5 ] Syzbot reported ununit-value bug in az6027_rc_query(). The problem was in missing state pointer initialization. Since this function does nothing we can simply initialize state to REMOTE_NO_KEY_PRESSED. Reported-and-tested-by: syzbot+2cd8c5db4a85f0a04142@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 76f9a820c867 ("V4L/DVB: AZ6027: Initial import of the driver") Signed-off-by: Pavel Skripkin <paskripkin@xxxxxxxxx> Signed-off-by: Sean Young <sean@xxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/media/usb/dvb-usb/az6027.c b/drivers/media/usb/dvb-usb/az6027.c index 8de18da0c4bd1..5aa9c501ed9c9 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; }