From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45582 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753935AbcDIXpv (ORCPT ); Sat, 9 Apr 2016 19:45:51 -0400 Subject: Patch "Input: powermate - fix oops with malicious USB descriptors" has been added to the 4.5-stable tree To: jwboyer@fedoraproject.org, dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org, ralf@spenneberg.net Cc: , From: Date: Sat, 09 Apr 2016 16:45:50 -0700 Message-ID: <1460245550015@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 Input: powermate - fix oops with malicious USB descriptors to the 4.5-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: input-powermate-fix-oops-with-malicious-usb-descriptors.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 9c6ba456711687b794dcf285856fc14e2c76074f Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Mon, 14 Mar 2016 09:33:40 -0700 Subject: Input: powermate - fix oops with malicious USB descriptors From: Josh Boyer commit 9c6ba456711687b794dcf285856fc14e2c76074f upstream. The powermate driver expects at least one valid USB endpoint in its probe function. If given malicious descriptors that specify 0 for the number of endpoints, it will crash. Validate the number of endpoints on the interface before using them. The full report for this issue can be found here: http://seclists.org/bugtraq/2016/Mar/85 Reported-by: Ralf Spenneberg Signed-off-by: Josh Boyer Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/misc/powermate.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/input/misc/powermate.c +++ b/drivers/input/misc/powermate.c @@ -307,6 +307,9 @@ static int powermate_probe(struct usb_in int error = -ENOMEM; interface = intf->cur_altsetting; + if (interface->desc.bNumEndpoints < 1) + return -EINVAL; + endpoint = &interface->endpoint[0].desc; if (!usb_endpoint_is_int_in(endpoint)) return -EIO; Patches currently in stable-queue which might be from jwboyer@fedoraproject.org are queue-4.5/usb-serial-ftdi_sio-add-support-for-icp-das-i-756xu-devices.patch queue-4.5/input-powermate-fix-oops-with-malicious-usb-descriptors.patch queue-4.5/perf-tools-fix-python-extension-build.patch queue-4.5/usb-iowarrior-fix-oops-with-malicious-usb-descriptors.patch