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Message-ID: <CAJcbSZFM6gqUFL2o74AEQqf=jrATgP0cYhgVNVLC0iw+L4YOMQ@mail.gmail.com>
Date: Tue, 9 Aug 2016 09:30:41 -0700
From: Thomas Garnier <thgarnie@...gle.com>
To: Joerg Roedel <jroedel@...e.de>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
"H . Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...e.de>, Dave Young <dyoung@...hat.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>, Lv Zheng <lv.zheng@...el.com>,
Baoquan He <bhe@...hat.com>, Dave Hansen <dave.hansen@...ux.intel.com>,
Mark Salter <msalter@...hat.com>, Aleksey Makarov <aleksey.makarov@...aro.org>,
Kees Cook <keescook@...omium.org>, Andrew Morton <akpm@...ux-foundation.org>,
Christian Borntraeger <borntraeger@...ibm.com>, Fabian Frederick <fabf@...net.be>, Toshi Kani <toshi.kani@...com>,
Dan Williams <dan.j.williams@...el.com>, "the arch/x86 maintainers" <x86@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v1 1/2] x86/KASLR: Fix physical memory calculation on
KASLR memory randomization
On Tue, Aug 9, 2016 at 9:03 AM, Joerg Roedel <jroedel@...e.de> wrote:
> On Tue, Aug 09, 2016 at 09:00:04AM -0700, Thomas Garnier wrote:
>> On Mon, Aug 8, 2016 at 11:40 AM, Thomas Garnier <thgarnie@...gle.com> wrote:
>> > Initialize KASLR memory randomization after max_pfn is initialized. Also
>> > ensure the size is rounded up. Could have create problems on machines
>> > with more than 1Tb of memory on certain random addresses.
>> >
>> > Signed-off-by: Thomas Garnier <thgarnie@...gle.com>
>>
>> I will send a new version of this PATCH soon. The test bot found
>> places where virtual addresses were computed before PAGE_OFFSET was
>> set. I will investigate that.
>
> When you do that, please also add 'Fixes:' tags to your patches.
>
Will do.
> Thanks,
>
> Joerg
>
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