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Patch "arm64: kconfig: Move LIST_POISON to a safe value" has been added to the 3.14-stable tree

PATCH [email protected] 1 participant 1 message Sep 23, 2015

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This is a note to let you know that I've just added the patch titled

arm64: kconfig: Move LIST_POISON to a safe value

to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm64-kconfig-move-list_poison-to-a-safe-value.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From bf0c4e04732479f650ff59d1ee82de761c0071f0 Mon Sep 17 00:00:00 2001

From: Jeff Vander Stoep <[email protected]>
Date: Tue, 18 Aug 2015 20:50:10 +0100
Subject: arm64: kconfig: Move LIST_POISON to a safe value

From: Jeff Vander Stoep <[email protected]>

commit bf0c4e04732479f650ff59d1ee82de761c0071f0 upstream.

Move the poison pointer offset to 0xdead000000000000, a recognized value that is not mappable by user-space exploits.

---
 arch/arm64/Kconfig |    4 ++++
 1 file changed, 4 insertions(+)
arch/arm64/Kconfig +4 -0
@@ -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
 

Patches currently in stable-queue which might be from [email protected] are

queue-3.14/arm64-kconfig-move-list_poison-to-a-safe-value.patch