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From: Jiri Kosina <jkosina@suse.cz>
To: Kees Cook <keescook@chromium.org>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	live-patching@vger.kernel.org, Linux-MM <linux-mm@kvack.org>,
	"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH] x86, kaslr: propagate base load address calculation
Date: Wed, 11 Feb 2015 00:13:30 +0100 (CET)	[thread overview]
Message-ID: <alpine.LNX.2.00.1502110010190.10719@pobox.suse.cz> (raw)
In-Reply-To: <alpine.LNX.2.00.1502110001480.10719@pobox.suse.cz>

On Wed, 11 Feb 2015, Jiri Kosina wrote:

> Alternatively, we can forbid zero-sized randomization, and always enforce 
> at least some minimal offset to be chosen in case zero would be chosen.

Okay, I see, that might not be always possible, depending on the memory 
map layout.

So I'll just send you a respin of my previous patch tomorrow that would, 
instead of defining __KERNEL_OFFSET as a particular value, introduce a 
simple global flag which would indicate whether kaslr is in place or not.

-- 
Jiri Kosina
SUSE Labs

WARNING: multiple messages have this Message-ID (diff)
From: Jiri Kosina <jkosina@suse.cz>
To: Kees Cook <keescook@chromium.org>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	live-patching@vger.kernel.org, Linux-MM <linux-mm@kvack.org>,
	"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH] x86, kaslr: propagate base load address calculation
Date: Wed, 11 Feb 2015 00:13:30 +0100 (CET)	[thread overview]
Message-ID: <alpine.LNX.2.00.1502110010190.10719@pobox.suse.cz> (raw)
In-Reply-To: <alpine.LNX.2.00.1502110001480.10719@pobox.suse.cz>

On Wed, 11 Feb 2015, Jiri Kosina wrote:

> Alternatively, we can forbid zero-sized randomization, and always enforce 
> at least some minimal offset to be chosen in case zero would be chosen.

Okay, I see, that might not be always possible, depending on the memory 
map layout.

So I'll just send you a respin of my previous patch tomorrow that would, 
instead of defining __KERNEL_OFFSET as a particular value, introduce a 
simple global flag which would indicate whether kaslr is in place or not.

-- 
Jiri Kosina
SUSE Labs

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  reply	other threads:[~2015-02-10 23:13 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-10 13:17 [PATCH] x86, kaslr: propagate base load address calculation Jiri Kosina
2015-02-10 13:17 ` Jiri Kosina
2015-02-10 17:25 ` Kees Cook
2015-02-10 17:25   ` Kees Cook
2015-02-10 23:07   ` Jiri Kosina
2015-02-10 23:07     ` Jiri Kosina
2015-02-10 23:13     ` Jiri Kosina [this message]
2015-02-10 23:13       ` Jiri Kosina
2015-02-13 15:04       ` [PATCH v2] " Jiri Kosina
2015-02-13 15:04         ` Jiri Kosina
2015-02-13 17:49         ` Kees Cook
2015-02-13 17:49           ` Kees Cook
2015-02-13 22:20           ` Jiri Kosina
2015-02-13 22:20             ` Jiri Kosina
2015-02-13 23:25             ` Kees Cook
2015-02-13 23:25               ` Kees Cook
2015-02-16 11:55               ` Borislav Petkov
2015-02-16 11:55                 ` Borislav Petkov
2015-02-16 19:27                 ` Kees Cook
2015-02-16 19:27                   ` Kees Cook
2015-02-16 19:42                   ` Borislav Petkov
2015-02-16 19:42                     ` Borislav Petkov
2015-02-17 10:44         ` Borislav Petkov
2015-02-17 10:44           ` Borislav Petkov
2015-02-17 12:21           ` Jiri Kosina
2015-02-17 12:21             ` Jiri Kosina
2015-02-17 12:39             ` Borislav Petkov
2015-02-17 12:39               ` Borislav Petkov
2015-02-17 16:45               ` Kees Cook
2015-02-17 16:45                 ` Kees Cook
2015-02-17 22:31                 ` Borislav Petkov
2015-02-17 22:31                   ` Borislav Petkov
2015-02-18  3:33                   ` Kees Cook
2015-02-18  3:33                     ` Kees Cook
2015-02-18  8:32                     ` Borislav Petkov
2015-02-18  8:32                       ` Borislav Petkov
2015-02-18 10:46                       ` Jiri Kosina
2015-02-18 10:46                         ` Jiri Kosina

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