From: Jeremy Cline jcline@redhat.com
[ Upstream commit 60cf7c5ed5f7087c4de87a7676b8c82d96fd166c ]
A number of userspace tools, such as systemtap, need a way to see the current lockdown state so they can gracefully deal with the kernel being locked down. The state is already exposed in /sys/kernel/security/lockdown, but is only readable by root. Adjust the permissions so unprivileged users can read the state.
Fixes: 000d388ed3bb ("security: Add a static lockdown policy LSM") Cc: Frank Ch. Eigler fche@redhat.com Signed-off-by: Jeremy Cline jcline@redhat.com Signed-off-by: James Morris jmorris@namei.org Signed-off-by: Sasha Levin sashal@kernel.org --- security/lockdown/lockdown.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c index 5a952617a0eb..87cbdc64d272 100644 --- a/security/lockdown/lockdown.c +++ b/security/lockdown/lockdown.c @@ -150,7 +150,7 @@ static int __init lockdown_secfs_init(void) { struct dentry *dentry;
- dentry = securityfs_create_file("lockdown", 0600, NULL, NULL, + dentry = securityfs_create_file("lockdown", 0644, NULL, NULL, &lockdown_ops); return PTR_ERR_OR_ZERO(dentry); }