Patch "isdn/gigaset: fix NULL-deref at probe" has been added to the 4.4-stable tree

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

isdn/gigaset: fix NULL-deref at probe

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
isdn-gigaset-fix-null-deref-at-probe.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Johan Hovold <[email protected]>
Date: Mon, 13 Mar 2017 13:39:01 +0100
Subject: isdn/gigaset: fix NULL-deref at probe

From: Johan Hovold <[email protected]>

commit 68c32f9c2a36d410aa242e661506e5b2c2764179 upstream.

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

---
 drivers/isdn/gigaset/bas-gigaset.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -2317,6 +2317,9 @@ static int gigaset_probe(struct usb_inte
 		return -ENODEV;
 	}
 
+	if (hostif->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	dev_info(&udev->dev,
 		 "%s: Device matched (Vendor: 0x%x, Product: 0x%x)\n",
 		 __func__, le16_to_cpu(udev->descriptor.idVendor),

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/isdn-gigaset-fix-null-deref-at-probe.patch