From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Morris Subject: Re: [PATCH 09/27] uswsusp: Disable when the kernel is locked down Date: Sat, 21 Oct 2017 03:29:00 +0400 (+04) Message-ID: References: <150842463163.7923.11081723749106843698.stgit@warthog.procyon.org.uk> <150842470227.7923.15293760935442172683.stgit@warthog.procyon.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <150842470227.7923.15293760935442172683.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: David Howells Cc: linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, gnomes-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, matthew.garrett-05XSO3Yj/JvQT0dZR+AlfA@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, jforbes-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: linux-efi@vger.kernel.org On Thu, 19 Oct 2017, David Howells wrote: > From: Matthew Garrett > > uswsusp allows a user process to dump and then restore kernel state, which > makes it possible to modify the running kernel. Disable this if the kernel > is locked down. > > Signed-off-by: Matthew Garrett > Signed-off-by: David Howells Reviewed-by: James Morris -- James Morris From mboxrd@z Thu Jan 1 00:00:00 1970 From: james.l.morris@oracle.com (James Morris) Date: Sat, 21 Oct 2017 03:29:00 +0400 (+04) Subject: [PATCH 09/27] uswsusp: Disable when the kernel is locked down In-Reply-To: <150842470227.7923.15293760935442172683.stgit@warthog.procyon.org.uk> References: <150842463163.7923.11081723749106843698.stgit@warthog.procyon.org.uk> <150842470227.7923.15293760935442172683.stgit@warthog.procyon.org.uk> Message-ID: To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org On Thu, 19 Oct 2017, David Howells wrote: > From: Matthew Garrett > > uswsusp allows a user process to dump and then restore kernel state, which > makes it possible to modify the running kernel. Disable this if the kernel > is locked down. > > Signed-off-by: Matthew Garrett > Signed-off-by: David Howells Reviewed-by: James Morris -- James Morris -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753104AbdJTX3Q (ORCPT ); Fri, 20 Oct 2017 19:29:16 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:20912 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498AbdJTX3O (ORCPT ); Fri, 20 Oct 2017 19:29:14 -0400 Date: Sat, 21 Oct 2017 03:29:00 +0400 (+04) From: James Morris X-X-Sender: james.l.morris@t440 To: David Howells cc: linux-security-module@vger.kernel.org, gnomes@lxorguk.ukuu.org.uk, linux-efi@vger.kernel.org, matthew.garrett@nebula.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, jforbes@redhat.com Subject: Re: [PATCH 09/27] uswsusp: Disable when the kernel is locked down In-Reply-To: <150842470227.7923.15293760935442172683.stgit@warthog.procyon.org.uk> Message-ID: References: <150842463163.7923.11081723749106843698.stgit@warthog.procyon.org.uk> <150842470227.7923.15293760935442172683.stgit@warthog.procyon.org.uk> User-Agent: Alpine 2.20 (LFD 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 19 Oct 2017, David Howells wrote: > From: Matthew Garrett > > uswsusp allows a user process to dump and then restore kernel state, which > makes it possible to modify the running kernel. Disable this if the kernel > is locked down. > > Signed-off-by: Matthew Garrett > Signed-off-by: David Howells Reviewed-by: James Morris -- James Morris