Patch "USB: serial: fix potential NULL-dereference at probe" has been added to the 4.8-stable tree

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

USB: serial: fix potential NULL-dereference at probe

to the 4.8-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:
usb-serial-fix-potential-null-dereference-at-probe.patch
and it can be found in the queue-4.8 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: Fri, 21 Oct 2016 12:56:27 +0200
Subject: USB: serial: fix potential NULL-dereference at probe

From: Johan Hovold <[email protected]>

commit 126d26f66d9890a69158812a6caa248c05359daa upstream.

Make sure we have at least one port before attempting to register a console.

Currently, at least one driver binds to a "dummy" interface and requests zero ports for it. Should such an interface also lack endpoints, we get a NULL-deref during probe.

---
 drivers/usb/serial/usb-serial.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -1078,7 +1078,8 @@ static int usb_serial_probe(struct usb_i
 
 	serial->disconnected = 0;
 
-	usb_serial_console_init(serial->port[0]->minor);
+	if (num_ports > 0)
+		usb_serial_console_init(serial->port[0]->minor);
 exit:
 	module_put(type->driver.owner);
 	return 0;

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

queue-4.8/usb-serial-cp210x-fix-tiocmget-error-handling.patch queue-4.8/usb-serial-ftdi_sio-add-support-for-infineon-triboard-tc2x7.patch queue-4.8/usb-serial-fix-potential-null-dereference-at-probe.patch