From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Catalin Marinas , Thierry Strudel , Jeff Vander Stoep , Will Deacon Subject: [PATCH 3.14 06/84] arm64: kconfig: Move LIST_POISON to a safe value Date: Tue, 29 Sep 2015 17:17:58 +0200 Message-Id: <20150929145331.226050046@linuxfoundation.org> In-Reply-To: <20150929145330.924730721@linuxfoundation.org> References: <20150929145330.924730721@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jeff Vander Stoep commit bf0c4e04732479f650ff59d1ee82de761c0071f0 upstream. Move the poison pointer offset to 0xdead000000000000, a recognized value that is not mappable by user-space exploits. Acked-by: Catalin Marinas Signed-off-by: Thierry Strudel Signed-off-by: Jeff Vander Stoep Signed-off-by: Will Deacon Signed-off-by: Greg Kroah-Hartman --- arch/arm64/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -68,6 +68,10 @@ config NO_IOPORT config STACKTRACE_SUPPORT def_bool y +config ILLEGAL_POINTER_VALUE + hex + default 0xdead000000000000 + config LOCKDEP_SUPPORT def_bool y