Messages in this thread Patch in this message | | | From | 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 |
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3.13.11-ckt28 -stable review patch. If anyone has any objections, please let me know.
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From: Jeff Vander Stoep <jeffv@google.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@arm.com> Signed-off-by: Thierry Strudel <tstrudel@google.com> Signed-off-by: Jeff Vander Stoep <jeffv@google.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- 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
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