From patchwork Fri Sep 14 18:55:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyler Hicks X-Patchwork-Id: 970053 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 42Bl8x0Q6mz9s3x; Sat, 15 Sep 2018 04:56:01 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1g0tFy-0005zJ-FX; Fri, 14 Sep 2018 18:55:54 +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 1g0tFw-0005zD-TA for kernel-team@lists.ubuntu.com; Fri, 14 Sep 2018 18:55:52 +0000 Received: from 2.general.tyhicks.us.vpn ([10.172.64.53] helo=sec.ubuntu-ci) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1g0tFw-00077Q-Du; Fri, 14 Sep 2018 18:55:52 +0000 From: Tyler Hicks To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/4][T] CVE-2018-7566, CVE-2018-1000004: Multiple issues in ALSA Date: Fri, 14 Sep 2018 18:55:34 +0000 Message-Id: <1536951338-23022-1-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/2018/CVE-2018-1000004.html In the Linux kernel 4.12, 3.10, 2.6 and possibly earlier versions a race condition vulnerability exists in the sound system, this can lead to a deadlock and denial of service condition. https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-7566.html The Linux kernel 4.15 has a Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user. I've tested these changes by ensuring that audio still works in a desktop VM. These issues only affect Trusty. Tyler Acked-by: Stefan Bader Acked-by: Kleber Sacilotto de Souza