From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baruch Siach Subject: Re: [PATCH 1/9] mm: Hardened usercopy Date: Thu, 7 Jul 2016 08:37:10 +0300 Message-ID: <20160707053710.GH2118@tarshish> References: <1467843928-29351-1-git-send-email-keescook@chromium.org> <1467843928-29351-2-git-send-email-keescook@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1467843928-29351-2-git-send-email-keescook@chromium.org> Sender: owner-linux-mm@kvack.org To: Kees Cook Cc: linux-kernel@vger.kernel.org, Jan Kara , kernel-hardening@lists.openwall.com, Catalin Marinas , Will Deacon , linux-mm@kvack.org, sparclinux@vger.kernel.org, linux-ia64@vger.kernel.org, Christoph Lameter , Andrea Arcangeli , linux-arch@vger.kernel.org, Michael Ellerman , x86@kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, Benjamin Herrenschmidt , PaX Team , Borislav Petkov , Mathias Krause , Fenghua Yu , Rik van Riel , Vitaly Wool , David Rientjes , Tony Luck , Andy Lutomirski , Joonsoo Kim List-Id: linux-arch.vger.kernel.org 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 -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il - -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from guitar.tcltek.co.il ([192.115.133.116]:46945 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750844AbcGGFnq (ORCPT ); Thu, 7 Jul 2016 01:43:46 -0400 Date: Thu, 7 Jul 2016 08:37:10 +0300 From: Baruch Siach Subject: Re: [PATCH 1/9] mm: Hardened usercopy Message-ID: <20160707053710.GH2118@tarshish> References: <1467843928-29351-1-git-send-email-keescook@chromium.org> <1467843928-29351-2-git-send-email-keescook@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1467843928-29351-2-git-send-email-keescook@chromium.org> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Kees Cook Cc: linux-kernel@vger.kernel.org, Jan Kara , kernel-hardening@lists.openwall.com, Catalin Marinas , Will Deacon , linux-mm@kvack.org, sparclinux@vger.kernel.org, linux-ia64@vger.kernel.org, Christoph Lameter , Andrea Arcangeli , linux-arch@vger.kernel.org, Michael Ellerman , x86@kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, Benjamin Herrenschmidt , PaX Team , Borislav Petkov , Mathias Krause , Fenghua Yu , Rik van Riel , Vitaly Wool , David Rientjes , Tony Luck , Andy Lutomirski , Joonsoo Kim , Dmitry Vyukov , Laura Abbott , Brad Spengler , Ard Biesheuvel , Pekka Enberg , Casey Schaufler , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Message-ID: <20160707053710.W3KSYwKoUrW3AEHXTyaVQg8Pt3XUo5B6uPzSgfynRQg@z> 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 -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -