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    Subject[PATCH 5.14 382/849] media: dvb-usb: fix ununit-value in az6027_rc_query
    Date
    From: Pavel Skripkin <paskripkin@gmail.com>

    [ 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@syzkaller.appspotmail.com

    Fixes: 76f9a820c867 ("V4L/DVB: AZ6027: Initial import of the driver")
    Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
    Signed-off-by: Sean Young <sean@mess.org>
    Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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 1c39b61cde29b..86788771175b7 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;
    }

    --
    2.33.0


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