linux-kernel - [PATCH 4.15 39/53] apparmor: fix display of .ns

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Message-Id: <20180417155725.021110829@linuxfoundation.org>
Date:   Tue, 17 Apr 2018 17:59:04 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Serge Hallyn <serge@...lyn.com>,
        John Johansen <john.johansen@...onical.com>
Subject: [PATCH 4.15 39/53] apparmor: fix display of .ns_name for containers

4.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: John Johansen <john.johansen@...onical.com>

commit 040d9e2bce0a5b321c402b79ee43a8e8d2fd3b06 upstream.

The .ns_name should not be virtualized by the current ns view. It
needs to report the ns base name as that is being used during startup
as part of determining apparmor policy namespace support.

BugLink: http://bugs.launchpad.net/bugs/1746463
Fixes: d9f02d9c237aa ("apparmor: fix display of ns name")
Cc: Stable <stable@...r.kernel.org>
Reported-by: Serge Hallyn <serge@...lyn.com>
Tested-by: Serge Hallyn <serge@...lyn.com>
Signed-off-by: John Johansen <john.johansen@...onical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 security/apparmor/apparmorfs.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -1189,9 +1189,7 @@ static int seq_ns_level_show(struct seq_
 static int seq_ns_name_show(struct seq_file *seq, void *v)
 {
 	struct aa_label *label = begin_current_label_crit_section();
-
-	seq_printf(seq, "%s\n", aa_ns_name(labels_ns(label),
-					   labels_ns(label), true));
+	seq_printf(seq, "%s\n", labels_ns(label)->base.name);
 	end_current_label_crit_section(label);
 
 	return 0;