Commit 530b099d authored Feb 04, 2014 by Colin Cross Committed by Catalin Marinas Feb 05, 2014

security: select correct default LSM_MMAP_MIN_ADDR on arm on arm64



Binaries compiled for arm may run on arm64 if CONFIG_COMPAT is
selected.  Set LSM_MMAP_MIN_ADDR to 32768 if ARM64 && COMPAT to
prevent selinux failures launching 32-bit static executables that
are mapped at 0x8000.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Eric Paris <eparis@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent 6290b53d

security/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -103,7 +103,7 @@ config INTEL_TXT
		config LSM_MMAP_MIN_ADDR
		int "Low address space for LSM to protect from user allocation"
		depends on SECURITY && SECURITY_SELINUX
		default 32768 if ARM
		default 32768 if ARM \|\| (ARM64 && COMPAT)
		default 65536
		help
		This is the portion of low virtual memory which should be protected

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