Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933774AbaGVW2a (ORCPT ); Tue, 22 Jul 2014 18:28:30 -0400 Received: from mail-lb0-f173.google.com ([209.85.217.173]:44036 "EHLO mail-lb0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932585AbaGVW2V (ORCPT ); Tue, 22 Jul 2014 18:28:21 -0400 MIME-Version: 1.0 In-Reply-To: <1406067727-19683-107-git-send-email-kamal@canonical.com> References: <1406067727-19683-1-git-send-email-kamal@canonical.com> <1406067727-19683-107-git-send-email-kamal@canonical.com> From: Andy Lutomirski Date: Tue, 22 Jul 2014 15:27:59 -0700 Message-ID: Subject: Re: [PATCH 3.8 106/116] x86_32, entry: Do syscall exit work on badsys (CVE-2014-4508) To: Kamal Mostafa Cc: "linux-kernel@vger.kernel.org" , stable , kernel-team@lists.ubuntu.com, Roland McGrath , "H. Peter Anvin" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 22, 2014 at 3:21 PM, Kamal Mostafa wrote: > 3.8.13.27 -stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Andy Lutomirski > > commit 554086d85e71f30abe46fc014fea31929a7c6a8a upstream. > > The bad syscall nr paths are their own incomprehensible route > through the entry control flow. Rearrange them to work just like > syscalls that return -ENOSYS. > > This fixes an OOPS in the audit code when fast-path auditing is > enabled and sysenter gets a bad syscall nr (CVE-2014-4508). > > This has probably been broken since Linux 2.6.27: > af0575bba0 i386 syscall audit fast-path Don't apply this without: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=8142b215501f8b291a108a202b3a053a265b03dd Sorry! --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/