From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from youngberry.canonical.com ([91.189.89.112]:42998 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753227AbbJTVgP (ORCPT ); Tue, 20 Oct 2015 17:36:15 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Thierry Strudel , Jeff Vander Stoep , Will Deacon , Kamal Mostafa Subject: [PATCH 3.13.y-ckt 40/85] arm64: kconfig: Move LIST_POISON to a safe value Date: Tue, 20 Oct 2015 14:34:56 -0700 Message-Id: <1445376941-7046-41-git-send-email-kamal@canonical.com> In-Reply-To: <1445376941-7046-1-git-send-email-kamal@canonical.com> References: <1445376941-7046-1-git-send-email-kamal@canonical.com> Sender: stable-owner@vger.kernel.org List-ID: 3.13.11-ckt28 -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: Kamal Mostafa --- arch/arm64/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index bf0ed5d..239635b 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -58,6 +58,10 @@ config NO_IOPORT config STACKTRACE_SUPPORT def_bool y +config ILLEGAL_POINTER_VALUE + hex + default 0xdead000000000000 + config LOCKDEP_SUPPORT def_bool y -- 1.9.1