From patchwork Tue Nov 20 01:18:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyler Hicks X-Patchwork-Id: 1000210 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42zSXk3JTSz9s1x; Tue, 20 Nov 2018 12:19:18 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1gOuh4-0008HQ-50; Tue, 20 Nov 2018 01:19:10 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.86_2) (envelope-from ) id 1gOuh3-0008HF-2a for kernel-team@lists.ubuntu.com; Tue, 20 Nov 2018 01:19:09 +0000 Received: from 162-237-133-238.lightspeed.rcsntx.sbcglobal.net ([162.237.133.238] helo=sec.v.tihix.com) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1gOuh2-0003dH-K0; Tue, 20 Nov 2018 01:19:08 +0000 From: Tyler Hicks To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/1][T/B] CVE-2018-14734 - Denial of Service in Infiniband core Date: Tue, 20 Nov 2018 01:18:47 +0000 Message-Id: <1542676728-15881-1-git-send-email-tyhicks@canonical.com> X-Mailer: git-send-email 2.7.4 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" https://people.canonical.com/~ubuntu-security/cve/?cve=CVE-2018-14734 drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free). Clean cherry pick to Bionic and Trusty. Xenial has already been fixed thanks to the fix coming in via linux-stable. I was unable to test the affected code due to lack of necessary hardware. However, the build logs are clean and the fix is easy to review. Tyler Acked-by: Po-Hsu Lin