From: Oliver Neukum <oneu...@suse.com> [ Upstream commit a8be80053ea74bd9c3f9a3810e93b802236d6498 ]
If you do sanity checks, you should do them for both endpoints. Hence introduce checking for endpoint type for the output endpoint, too. Reported-by: syzbot+998261c2ae5932458...@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum <oneu...@suse.com> Signed-off-by: Sean Young <s...@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/media/rc/ati_remote.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c index a35631891cc00..3c3f4c4f6be40 100644 --- a/drivers/media/rc/ati_remote.c +++ b/drivers/media/rc/ati_remote.c @@ -843,6 +843,10 @@ static int ati_remote_probe(struct usb_interface *interface, err("%s: endpoint_in message size==0? \n", __func__); return -ENODEV; } + if (!usb_endpoint_is_int_out(endpoint_out)) { + err("%s: Unexpected endpoint_out\n", __func__); + return -ENODEV; + } ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL); rc_dev = rc_allocate_device(); -- 2.25.1