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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 <[email protected]>
Acked-by: Will Deacon <[email protected]>
Acked-by: Eric Paris <[email protected]>
Acked-by: James Morris <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
This commit is contained in:
Colin Cross 2014-02-04 02:15:32 +00:00 • committed by Catalin Marinas
commit 530b099dfe
1 changed files with 1 additions and 1 deletions
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security/Kconfig
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@ -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