linux-kernel - Re: [PATCH 1/8] x86, kaslr: get kaslr

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Message-ID: <CAE9FiQVS0ai2k-WNfsbwvOkj8YUxzaZJN5XDTMu1Ukhot7zOTw@mail.gmail.com>
Date:	Mon, 2 Mar 2015 03:04:30 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Borislav Petkov <bp@...e.de>
Cc:	Ingo Molnar <mingo@...nel.org>, Jiri Kosina <jkosina@...e.cz>,
	Kees Cook <keescook@...omium.org>,
	Matt Fleming <matt.fleming@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH 1/8] x86, kaslr: get kaslr_enabled back correctly

On Mon, Mar 2, 2015 at 12:56 AM, Borislav Petkov <bp@...e.de> wrote:
> On Sun, Mar 01, 2015 at 12:41:10PM -0800, Yinghai Lu wrote:
>> Does not look safe yet...
>
> Why?

We can not assume that range is safe to use.

Please check attach one that should fix the problem really.

Thanks

Yinghai

View attachment "fix_decompress_offset.patch" of type "text/x-patch" (5440 bytes)