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arm64: kconfig: Move LIST_POISON to a safe value 

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

Cc: <stable@vger.kernel.org>
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>
This commit is contained in:
Jeff Vander Stoep 2015-08-18 20:50:10 +01:00 committed by Will Deacon
parent 9a5ad7d0e3
commit bf0c4e0473
1 changed files with 4 additions and 0 deletions
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arch/arm64/Kconfig
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@ -106,6 +106,10 @@ config NO_IOPORT_MAP
config STACKTRACE_SUPPORT
def_bool y
config ILLEGAL_POINTER_VALUE
hex
default 0xdead000000000000
config LOCKDEP_SUPPORT
def_bool y