patch "uwb: hwa-rc: fix NULL-deref at probe" added to usb-linus

This is a note to let you know that I've just added the patch titled

uwb: hwa-rc: fix NULL-deref at probe

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From: Johan Hovold <[email protected]>
Date: Mon, 13 Mar 2017 13:47:52 +0100
Subject: uwb: hwa-rc: fix NULL-deref at probe

Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should a malicious device lack endpoints.

Note that the dereference happens in the start callback which is called during probe.

---
 drivers/uwb/hwa-rc.c | 3 +++
 1 file changed, 3 insertions(+)

index 0aa6c3c29d17..35a1e777b449 100644
@@ -823,6 +823,9 @@ static int hwarc_probe(struct usb_interface *iface,
 	struct hwarc *hwarc;
 	struct device *dev = &iface->dev;
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	result = -ENOMEM;
 	uwb_rc = uwb_rc_alloc();
 	if (uwb_rc == NULL) {

2.12.0