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Date: Thu, 7 Jul 2016 08:37:10 +0300
From: Baruch Siach <baruch@...s.co.il>
To: Kees Cook <keescook@...omium.org>
Cc: linux-kernel@...r.kernel.org, Jan Kara <jack@...e.cz>,
kernel-hardening@...ts.openwall.com,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>, linux-mm@...ck.org,
sparclinux@...r.kernel.org, linux-ia64@...r.kernel.org,
Christoph Lameter <cl@...ux.com>,
Andrea Arcangeli <aarcange@...hat.com>,
linux-arch@...r.kernel.org, Michael Ellerman <mpe@...erman.id.au>,
x86@...nel.org, Russell King <linux@...linux.org.uk>,
linux-arm-kernel@...ts.infradead.org,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
PaX Team <pageexec@...email.hu>, Borislav Petkov <bp@...e.de>,
Mathias Krause <minipli@...glemail.com>,
Fenghua Yu <fenghua.yu@...el.com>,
Rik van Riel <riel@...hat.com>,
Vitaly Wool <vitalywool@...il.com>,
David Rientjes <rientjes@...gle.com>,
Tony Luck <tony.luck@...el.com>,
Andy Lutomirski <luto@...nel.org>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
Dmitry Vyukov <dvyukov@...gle.com>,
Laura Abbott <labbott@...oraproject.org>,
Brad Spengler <spender@...ecurity.net>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
Pekka Enberg <penberg@...nel.org>,
Casey Schaufler <casey@...aufler-ca.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linuxppc-dev@...ts.ozlabs.org,
"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 1/9] mm: Hardened usercopy
Hi Kees,
On Wed, Jul 06, 2016 at 03:25:20PM -0700, Kees Cook wrote:
> +#ifdef CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR
Should be CONFIG_HARDENED_USERCOPY to match the slab/slub implementation
condition.
> +const char *__check_heap_object(const void *ptr, unsigned long n,
> + struct page *page);
> +#else
> +static inline const char *__check_heap_object(const void *ptr,
> + unsigned long n,
> + struct page *page)
> +{
> + return NULL;
> +}
> +#endif
baruch
--
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