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Date: Thu, 11 Jan 2018 11:06:56 -0600 (CST)
From: Christopher Lameter <cl@...ux.com>
To: Kees Cook <keescook@...omium.org>
cc: linux-kernel@...r.kernel.org,
Linus Torvalds <torvalds@...ux-foundation.org>,
David Windsor <dave@...lcore.net>,
Alexander Viro <viro@...iv.linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>,
Andy Lutomirski <luto@...nel.org>, Christoph Hellwig <hch@...radead.org>,
"David S. Miller" <davem@...emloft.net>, Laura Abbott <labbott@...hat.com>,
Mark Rutland <mark.rutland@....com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
Christoffer Dall <christoffer.dall@...aro.org>,
Dave Kleikamp <dave.kleikamp@...cle.com>, Jan Kara <jack@...e.cz>,
Luis de Bethencourt <luisbg@...nel.org>,
Marc Zyngier <marc.zyngier@....com>, Rik van Riel <riel@...hat.com>,
Matthew Garrett <mjg59@...gle.com>, linux-fsdevel@...r.kernel.org,
linux-arch@...r.kernel.org, netdev@...r.kernel.org, linux-mm@...ck.org,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH 02/38] usercopy: Enhance and rename report_usercopy()
On Wed, 10 Jan 2018, Kees Cook wrote:
> diff --git a/mm/slab.h b/mm/slab.h
> index ad657ffa44e5..7d29e69ac310 100644
> --- a/mm/slab.h
> +++ b/mm/slab.h
> @@ -526,4 +526,10 @@ static inline int cache_random_seq_create(struct kmem_cache *cachep,
> static inline void cache_random_seq_destroy(struct kmem_cache *cachep) { }
> #endif /* CONFIG_SLAB_FREELIST_RANDOM */
>
> +#ifdef CONFIG_HARDENED_USERCOPY
> +void __noreturn usercopy_abort(const char *name, const char *detail,
> + bool to_user, unsigned long offset,
> + unsigned long len);
> +#endif
> +
> #endif /* MM_SLAB_H */
This code has nothing to do with slab allocation. Move it into
include/linux/uaccess.h where the other user space access definitions are?
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