From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:37788 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757251AbdCXPD6 (ORCPT ); Fri, 24 Mar 2017 11:03:58 -0400 Subject: Patch "isdn/gigaset: fix NULL-deref at probe" has been added to the 4.4-stable tree To: johan@kernel.org, davem@davemloft.net, gregkh@linuxfoundation.org, hjlipp@web.de Cc: , From: Date: Fri, 24 Mar 2017 16:02:44 +0100 Message-ID: <14903677648098@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: 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 know about it. >>From 68c32f9c2a36d410aa242e661506e5b2c2764179 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 13 Mar 2017 13:39:01 +0100 Subject: isdn/gigaset: fix NULL-deref at probe From: Johan Hovold commit 68c32f9c2a36d410aa242e661506e5b2c2764179 upstream. Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should a malicious device lack endpoints. Fixes: cf7776dc05b8 ("[PATCH] isdn4linux: Siemens Gigaset drivers - direct USB connection") Cc: Hansjoerg Lipp Signed-off-by: Johan Hovold Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/isdn/gigaset/bas-gigaset.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -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 johan@kernel.org are queue-4.4/isdn-gigaset-fix-null-deref-at-probe.patch