From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from youngberry.canonical.com ([91.189.89.112]:46347 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932489AbbI3Jw0 (ORCPT ); Wed, 30 Sep 2015 05:52:26 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Thierry Strudel , Jeff Vander Stoep , Will Deacon , Luis Henriques Subject: [PATCH 3.16.y-ckt 051/133] arm64: kconfig: Move LIST_POISON to a safe value Date: Wed, 30 Sep 2015 10:49:59 +0100 Message-Id: <1443606681-7124-52-git-send-email-luis.henriques@canonical.com> In-Reply-To: <1443606681-7124-1-git-send-email-luis.henriques@canonical.com> References: <1443606681-7124-1-git-send-email-luis.henriques@canonical.com> Sender: stable-owner@vger.kernel.org List-ID: 3.16.7-ckt18 -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: Luis Henriques --- arch/arm64/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 839f48c26ef0..316ed8cf5bc0 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -81,6 +81,10 @@ config NO_IOPORT_MAP config STACKTRACE_SUPPORT def_bool y +config ILLEGAL_POINTER_VALUE + hex + default 0xdead000000000000 + config LOCKDEP_SUPPORT def_bool y