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| author | Jeremy Cline <jcline@redhat.com> | 2020-05-14 17:05:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-22 10:30:53 +0300 |
| commit | 6eec65c9e283096ce6cf4c6d6b5fb6b9450fb9ca (patch) | |
| tree | 75b9003417731b20c08fe509f2876929d1b1ff86 /security | |
| parent | 00f73938ef655908838b332df33e6b25d7080fd5 (diff) | |
| download | linux-6eec65c9e283096ce6cf4c6d6b5fb6b9450fb9ca.tar.xz | |
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: 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>
Diffstat (limited to 'security')
| -rw-r--r-- | security/lockdown/lockdown.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c index b2f87015d6e9..3f38583bed06 100644 --- a/security/lockdown/lockdown.c +++ b/security/lockdown/lockdown.c @@ -177,7 +177,7 @@ 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); } |