lockdown: Allow unprivileged users to see lockdown status
[ 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: 000d388ed3
("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>
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@ -177,7 +177,7 @@ static int __init lockdown_secfs_init(void)
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{
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struct dentry *dentry;
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dentry = securityfs_create_file("lockdown", 0600, NULL, NULL,
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dentry = securityfs_create_file("lockdown", 0644, NULL, NULL,
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&lockdown_ops);
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return PTR_ERR_OR_ZERO(dentry);
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}
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