linux-kernel - Re: [PATCH] sunvdc: Remove VLA usage

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Message-Id: <20181007.234641.2199470135547877917.davem@davemloft.net>
Date:   Sun, 07 Oct 2018 23:46:41 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     keescook@...omium.org
Cc:     axboe@...nel.dk, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sunvdc: Remove VLA usage

From: Kees Cook <keescook@...omium.org>
Date: Sun, 7 Oct 2018 23:16:01 -0700

> On Mon, Sep 24, 2018 at 8:19 PM, Kees Cook <keescook@...omium.org> wrote:
>> On Wed, Sep 5, 2018 at 5:09 PM, Kees Cook <keescook@...omium.org> wrote:
>>> In the quest to remove all stack VLA usage from the kernel[1], this
>>> moves the math for cookie calculation into macros and allocates a fixed
>>> size array for the maximum number of cookies and adds a runtime sanity check.
>>> (Note that the size was always fixed, but just hidden from the compiler.)
>>>
>>> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
>>>
>>> Signed-off-by: Kees Cook <keescook@...omium.org>
>>
>> Friendly ping. Jens, can you take this?
> 
> Dave, should this go via you instead? I'll take it via my tree if no
> one else wants it...

Please resend to me and CC: sparclinux@...r.kernel.org and I'll take it.

Thanks.