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RANDOMIZE_KSTACK_OFFSET_DEFAULT is recommended by KSPP
author
Alexander Popov
<alex.popov@linux.com>
Tue, 21 Sep 2021 17:44:17 +0000
(20:44 +0300)
committer
Alexander Popov
<alex.popov@linux.com>
Tue, 21 Sep 2021 17:44:17 +0000
(20:44 +0300)
Thanks to @anthraxx
kconfig_hardened_check/__init__.py
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diff --git
a/kconfig_hardened_check/__init__.py
b/kconfig_hardened_check/__init__.py
index 9c709694c84910809b434865ed6d0a46f9f53477..0a0014fdc1d36734c2f6d395401e84272267b7e2 100644
(file)
--- a/
kconfig_hardened_check/__init__.py
+++ b/
kconfig_hardened_check/__init__.py
@@
-382,6
+382,7
@@
def construct_checklist(l, arch):
if arch in ('X86_64', 'ARM64', 'X86_32'):
stackleak_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STACKLEAK', 'y')
l += [stackleak_is_set]
if arch in ('X86_64', 'ARM64', 'X86_32'):
stackleak_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STACKLEAK', 'y')
l += [stackleak_is_set]
+ l += [OptCheck('self_protection', 'kspp', 'RANDOMIZE_KSTACK_OFFSET_DEFAULT', 'y')]
if arch in ('X86_64', 'X86_32'):
l += [OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536')]
if arch in ('ARM64', 'ARM'):
if arch in ('X86_64', 'X86_32'):
l += [OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536')]
if arch in ('ARM64', 'ARM'):
@@
-423,8
+424,6
@@
def construct_checklist(l, arch):
OptCheck('self_protection', 'my', 'UBSAN_MISC', 'is not set'),
OptCheck('self_protection', 'my', 'UBSAN_TRAP', 'y'))]
l += [OptCheck('self_protection', 'my', 'RESET_ATTACK_MITIGATION', 'y')] # needs userspace support (systemd)
OptCheck('self_protection', 'my', 'UBSAN_MISC', 'is not set'),
OptCheck('self_protection', 'my', 'UBSAN_TRAP', 'y'))]
l += [OptCheck('self_protection', 'my', 'RESET_ATTACK_MITIGATION', 'y')] # needs userspace support (systemd)
- if arch in ('X86_64', 'ARM64', 'X86_32'):
- l += [OptCheck('self_protection', 'my', 'RANDOMIZE_KSTACK_OFFSET_DEFAULT', 'y')]
if arch == 'X86_64':
l += [AND(OptCheck('self_protection', 'my', 'AMD_IOMMU_V2', 'y'),
iommu_support_is_set)]
if arch == 'X86_64':
l += [AND(OptCheck('self_protection', 'my', 'AMD_IOMMU_V2', 'y'),
iommu_support_is_set)]