linux-kernel - Re: [RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <402a645ddb31326c80d6d0eb649813816eaa6634.camel@intel.com>
Date:   Tue, 31 Aug 2021 17:55:17 +0000
From:   "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To:     "peterz@...radead.org" <peterz@...radead.org>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "rdunlap@...radead.org" <rdunlap@...radead.org>,
        "rppt@...nel.org" <rppt@...nel.org>,
        "vbabka@...e.cz" <vbabka@...e.cz>,
        "x86@...nel.org" <x86@...nel.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "Lutomirski, Andy" <luto@...nel.org>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        "shakeelb@...gle.com" <shakeelb@...gle.com>
CC:     "Williams, Dan J" <dan.j.williams@...el.com>,
        "linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-hardening@...ts.openwall.com" 
        <kernel-hardening@...ts.openwall.com>,
        "Weiny, Ira" <ira.weiny@...el.com>
Subject: Re: [RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode

On Mon, 2021-08-30 at 20:49 -0700, Randy Dunlap wrote:
> On 8/30/21 4:59 PM, Rick Edgecombe wrote:
> > diff --git a/Documentation/admin-guide/kernel-parameters.txt
> > b/Documentation/admin-guide/kernel-parameters.txt
> > index 7902fce7f1da..8bb290fee77f 100644
> > --- a/Documentation/admin-guide/kernel-parameters.txt
> > +++ b/Documentation/admin-guide/kernel-parameters.txt
> > @@ -4254,6 +4254,10 @@
> >   	nopti		[X86-64]
> >   			Equivalent to pti=off
> >   
> > +	nopkstables	[X86-64] Disable PKS page table protection
> > +
> > +	pkstablessoft	[X86-64] Warn instead of oops on pks tables
> > violations
> 
> preferably		                                 PKS
> 
Sure, thanks.
> > +
> >   	pty.legacy_count=
> >   			[KNL] Number of legacy pty's. Overwrites
> > compiled-in
> >   			default number.
> 
>