linux-kernel - Re: [PATCH v6 0/4] KASLR feature to randomize each loadable module

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Message-ID: <CAGXu5jKpwGHRJ92q7yCc+y8esdG6orFVOiZGoGMCi1XiY0JBoQ@mail.gmail.com>
Date:   Fri, 21 Sep 2018 12:05:55 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Rick Edgecombe <rick.p.edgecombe@...el.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, X86 ML <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jann Horn <jannh@...gle.com>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Kristen Carlson Accardi <kristen@...ux.intel.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Arjan van de Ven <arjan@...ux.intel.com>
Subject: Re: [PATCH v6 0/4] KASLR feature to randomize each loadable module

On Thu, Sep 13, 2018 at 2:31 PM, Rick Edgecombe
<rick.p.edgecombe@...el.com> wrote:
> This is V6 of the "KASLR feature to randomize each loadable module" patchset.
> The purpose is to increase the randomization and also to make the modules
> randomized in relation to each other instead of just the base, so that if one
> module leaks the location of the others can't be inferred.

I'm excited for this! :)

> Rick Edgecombe (4):
>   vmalloc: Add __vmalloc_node_try_addr function
>   x86/modules: Increase randomization for modules
>   vmalloc: Add debugfs modfraginfo
>   Kselftest for module text allocation benchmarking

Yay for self-tests! This is much appreciated.

-Kees

-- 
Kees Cook
Pixel Security