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arm64: kconfig: Move LIST_POISON to a safe value

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commit bf0c4e0473 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeff Vander Stoep
2015-08-18 20:50:10 +01:00
committed by Greg Kroah-Hartman
parent 2a6f417477
commit 1bcc586eae
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/Kconfig
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@@ -101,6 +101,10 @@ config NO_IOPORT_MAP
config STACKTRACE_SUPPORT config STACKTRACE_SUPPORT
def_bool y def_bool y
config ILLEGAL_POINTER_VALUE
hex
default 0xdead000000000000
config LOCKDEP_SUPPORT config LOCKDEP_SUPPORT
def_bool y def_bool y