linux-kernel - Re: [v2] powerpc: mpc5200: Remove VLA usage

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Message-Id: <41Qft95thjzB4MT@ozlabs.org>
Date:   Wed, 11 Jul 2018 23:24:17 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Kees Cook <keescook@...omium.org>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>,
        Anatolij Gustschin <agust@...x.de>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [v2] powerpc: mpc5200: Remove VLA usage

On Mon, 2018-07-02 at 15:56:21 UTC, Kees Cook wrote:
> In the quest to remove all stack VLA usage from the kernel[1], this
> switches to using a stack size large enough for the saved routine and
> adds a sanity check making sure the routine doesn't overflow into the
> 0x600 exception handler.
> 
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
> 
> Signed-off-by: Kees Cook <keescook@...omium.org>
> Reviewed-by: Arnd Bergmann <arnd@...db.de>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/741c5640a15a23a2ec3a0846668a82

cheers