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Message-Id: <20150929145331.226050046@linuxfoundation.org>
Date: Tue, 29 Sep 2015 17:17:58 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Catalin Marinas <catalin.marinas@....com>,
Thierry Strudel <tstrudel@...gle.com>,
Jeff Vander Stoep <jeffv@...gle.com>,
Will Deacon <will.deacon@....com>
Subject: [PATCH 3.14 06/84] arm64: kconfig: Move LIST_POISON to a safe value
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jeff Vander Stoep <jeffv@...gle.com>
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 <catalin.marinas@....com>
Signed-off-by: Thierry Strudel <tstrudel@...gle.com>
Signed-off-by: Jeff Vander Stoep <jeffv@...gle.com>
Signed-off-by: Will Deacon <will.deacon@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
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
--
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