From: Oliver Neukum oneukum@suse.com
[ Upstream commit 849f5ae3a513c550cad741c68dd3d7eb2bcc2a2c ]
The endpoint type should also be checked before a device is accepted.
Reported-by: syzbot+5efc10c005014d061a74@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum oneukum@suse.com Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/joystick/iforce/iforce-usb.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c index f1569ae8381bc..a0a686f56ac4f 100644 --- a/drivers/input/joystick/iforce/iforce-usb.c +++ b/drivers/input/joystick/iforce/iforce-usb.c @@ -129,7 +129,12 @@ static int iforce_usb_probe(struct usb_interface *intf, return -ENODEV;
epirq = &interface->endpoint[0].desc; + if (!usb_endpoint_is_int_in(epirq)) + return -ENODEV; + epout = &interface->endpoint[1].desc; + if (!usb_endpoint_is_int_out(epout)) + return -ENODEV;
if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL))) goto fail;