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media: ati_remote: sanity check for both endpoints 

[ Upstream commit a8be80053e ]

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+998261c2ae5932458f6c@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.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>
5.4-rM2-2.2.x-imx-squashed
Oliver Neukum 2020-09-16 15:50:51 +02:00 committed by Greg Kroah-Hartman
parent b4325c738f
commit d310c7437c
1 changed files with 4 additions and 0 deletions
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4
drivers/media/rc/ati_remote.c
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@ -835,6 +835,10 @@ 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(RC_DRIVER_SCANCODE);