From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Mika_Penttil=c3=a4?= Subject: Re: [PATCH v4 00/29] virtually mapped stacks and thread_info cleanup Date: Wed, 29 Jun 2016 20:24:16 +0300 Message-ID: <57740440.9090302@nextfour.com> References: <5773736D.40500@nextfour.com> Reply-To: kernel-hardening@lists.openwall.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Return-path: List-Post: List-Help: List-Unsubscribe: List-Subscribe: In-Reply-To: <5773736D.40500@nextfour.com> To: Andy Lutomirski , x86@kernel.org Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Borislav Petkov , Nadav Amit , Kees Cook , Brian Gerst , "kernel-hardening@lists.openwall.com" , Linus Torvalds , Josh Poimboeuf , Jann Horn , Heiko Carstens List-Id: linux-arch.vger.kernel.org On 29.06.2016 10:06, Mika Penttilä wrote: > On 06/27/2016 12:55 AM, Andy Lutomirski wrote: >> Hi all- >> >> Known issues: >> - tcp md5, virtio_net, and virtio_console will have issues. Eric Dumazet >> has a patch for tcp md5, and Michael Tsirkin says he'll fix virtio_net >> and virtio_console. >> > How about PTRACE_SETREGS, it's using the child stack's vmapped address to put regs? > > --Mika > PTRACE_SETREGS is ok of course. --Mika From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-db5eur01on0067.outbound.protection.outlook.com ([104.47.2.67]:20290 "EHLO EUR01-DB5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751525AbcF2R5E (ORCPT ); Wed, 29 Jun 2016 13:57:04 -0400 Subject: Re: [PATCH v4 00/29] virtually mapped stacks and thread_info cleanup References: <5773736D.40500@nextfour.com> From: =?UTF-8?Q?Mika_Penttil=c3=a4?= Message-ID: <57740440.9090302@nextfour.com> Date: Wed, 29 Jun 2016 20:24:16 +0300 MIME-Version: 1.0 In-Reply-To: <5773736D.40500@nextfour.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-arch-owner@vger.kernel.org List-ID: To: Andy Lutomirski , x86@kernel.org Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Borislav Petkov , Nadav Amit , Kees Cook , Brian Gerst , "kernel-hardening@lists.openwall.com" , Linus Torvalds , Josh Poimboeuf , Jann Horn , Heiko Carstens Message-ID: <20160629172416.F6rICgEtTmENxU5QDXWq-LwM8lkNCgJvfV0HJNeOe5o@z> On 29.06.2016 10:06, Mika Penttilä wrote: > On 06/27/2016 12:55 AM, Andy Lutomirski wrote: >> Hi all- >> >> Known issues: >> - tcp md5, virtio_net, and virtio_console will have issues. Eric Dumazet >> has a patch for tcp md5, and Michael Tsirkin says he'll fix virtio_net >> and virtio_console. >> > How about PTRACE_SETREGS, it's using the child stack's vmapped address to put regs? > > --Mika > PTRACE_SETREGS is ok of course. --Mika