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security: select correct default LSM_MMAP_MIN_ADDR on arm on arm64

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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>
This commit is contained in:
Colin Cross 2014-02-04 02:15:32 +00:00 • committed by Catalin Marinas
parent 6290b53de0
commit 530b099dfe
1 changed files with 1 additions and 1 deletions
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2
security/Kconfig
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@ -103,7 +103,7 @@ config INTEL_TXT
config LSM_MMAP_MIN_ADDR config LSM_MMAP_MIN_ADDR
int "Low address space for LSM to protect from user allocation" int "Low address space for LSM to protect from user allocation"
depends on SECURITY && SECURITY_SELINUX depends on SECURITY && SECURITY_SELINUX
default 32768 if ARM default 32768 if ARM || (ARM64 && COMPAT)
default 65536 default 65536
help help
This is the portion of low virtual memory which should be protected This is the portion of low virtual memory which should be protected