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authorJames Morris <jmorris@namei.org>2017-02-14 14:17:24 +0100
committerJames Morris <james.l.morris@oracle.com>2017-03-06 01:00:12 +0100
commitdd0859dccbe291cf8179a96390f5c0e45cb9af1d (patch)
treee7a2b67dfdb2beaa07d42a314eb142289599d381 /security/Kconfig
parentselinux: fix kernel BUG on prlimit(..., NULL, NULL) (diff)
downloadlinux-dd0859dccbe291cf8179a96390f5c0e45cb9af1d.tar.xz
linux-dd0859dccbe291cf8179a96390f5c0e45cb9af1d.zip
security: introduce CONFIG_SECURITY_WRITABLE_HOOKS
Subsequent patches will add RO hardening to LSM hooks, however, SELinux still needs to be able to perform runtime disablement after init to handle architectures where init-time disablement via boot parameters is not feasible. Introduce a new kernel configuration parameter CONFIG_SECURITY_WRITABLE_HOOKS, and a helper macro __lsm_ro_after_init, to handle this case. Signed-off-by: James Morris <james.l.morris@oracle.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'security/Kconfig')
-rw-r--r--security/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/security/Kconfig b/security/Kconfig
index d900f47eaa68..3ff1bf91080e 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -31,6 +31,11 @@ config SECURITY
If you are unsure how to answer this question, answer N.
+config SECURITY_WRITABLE_HOOKS
+ depends on SECURITY
+ bool
+ default n
+
config SECURITYFS
bool "Enable the securityfs filesystem"
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