linux-kernel - Re: [PATCH] x86/power/64: Remove VLA usage

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Message-ID: <20180716085235.GB3047@amd>
Date:   Mon, 16 Jul 2018 10:52:35 +0200
From:   Pavel Machek <pavel@....cz>
To:     Kees Cook <keescook@...omium.org>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Arnd Bergmann <arnd@...db.de>,
        Eric Biggers <ebiggers@...gle.com>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/power/64: Remove VLA usage

On Sun 2018-07-15 20:56:57, Kees Cook wrote:
> In the quest to remove all stack VLA usage from the kernel[1], this
> removes the discouraged use of AHASH_REQUEST_ON_STACK by switching to
> shash directly and allocating the descriptor in heap memory (which should
> be fine: the tfm has already been allocated there too).
> 
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
> 
> Signed-off-by: Kees Cook <keescook@...omium.org>

Acked-by: Pavel Machek <pavel@....cz>

, provided it was tested.

									Pavel
									
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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