From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965885AbeEIW0F (ORCPT ); Wed, 9 May 2018 18:26:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:59910 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965610AbeEIW0E (ORCPT ); Wed, 9 May 2018 18:26:04 -0400 Date: Thu, 10 May 2018 07:25:59 +0900 From: Masami Hiramatsu To: Andy Lutomirski Cc: X86 ML , LKML , Linus Torvalds , Oleg Nesterov , Ingo Molnar , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Alexei Starovoitov , "David S. Miller" , Steven Rostedt , francis.deslauriers@efficios.com, Ricardo Neri , Borislav Petkov , Yonghong Song Subject: Re: [PATCH 0/2] uprobes: x86: Reject probing MOV SS Message-Id: <20180510072559.21cf860390f62bfc195ae959@kernel.org> In-Reply-To: References: <152587066475.17316.3035446966107675608.stgit@devbox> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 09 May 2018 14:36:27 +0000 Andy Lutomirski wrote: > On Wed, May 9, 2018 at 5:58 AM Masami Hiramatsu wrote: > > > Hi, > > > I found the CVE-2018-1087 and CVE-2018-8897 should > > be related to kprobes and uprobes too, since both > > are using #DB for single stepping. > > > Seems okay to me. I doubt we have a security problem, but I can easily > imagine that the probes wouldn't work right. Sorry for confusion, yes, that will not be a security issue, since kprobes and uprobes can be used only by root user. Thank you, -- Masami Hiramatsu