Patch "usb: usbtest: fix NULL pointer dereference" has been added to the 4.9-stable tree

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

usb: usbtest: fix NULL pointer dereference

to the 4.9-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-usbtest-fix-null-pointer-dereference.patch
and it can be found in the queue-4.9 subdirectory.

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

From: Alan Stern <[email protected]>
Date: Fri, 29 Sep 2017 10:54:24 -0400
Subject: usb: usbtest: fix NULL pointer dereference

From: Alan Stern <[email protected]>

commit 7c80f9e4a588f1925b07134bb2e3689335f6c6d8 upstream.

If the usbtest driver encounters a device with an IN bulk endpoint but no OUT bulk endpoint, it will try to dereference a NULL pointer (out->desc.bEndpointAddress). The problem can be solved by adding a missing test.

---
 drivers/usb/misc/usbtest.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

@@ -209,12 +209,13 @@ found:
 			return tmp;
 	}
 
-	if (in) {
+	if (in)
 		dev->in_pipe = usb_rcvbulkpipe(udev,
 			in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+	if (out)
 		dev->out_pipe = usb_sndbulkpipe(udev,
 			out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	}
+
 	if (iso_in) {
 		dev->iso_in = &iso_in->desc;
 		dev->in_iso_pipe = usb_rcvisocpipe(udev,

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

queue-4.9/usb-usbtest-fix-null-pointer-dereference.patch