linux-kernel - [PATCH 5.10 063/221] selinux: dont log MAC_POLICY

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Message-Id: <20210329075631.295856056@linuxfoundation.org>
Date:   Mon, 29 Mar 2021 09:56:34 +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, Ondrej Mosnacek <omosnace@...hat.com>,
        Paul Moore <paul@...l-moore.com>
Subject: [PATCH 5.10 063/221] selinux: dont log MAC_POLICY_LOAD record on failed policy load

From: Ondrej Mosnacek <omosnace@...hat.com>

commit 519dad3bcd809dc1523bf80ab0310ddb3bf00ade upstream.

If sel_make_policy_nodes() fails, we should jump to 'out', not 'out1',
as the latter would incorrectly log an MAC_POLICY_LOAD audit record,
even though the policy hasn't actually been reloaded. The 'out1' jump
label now becomes unused and can be removed.

Fixes: 02a52c5c8c3b ("selinux: move policy commit after updating selinuxfs")
Cc: stable@...r.kernel.org
Signed-off-by: Ondrej Mosnacek <omosnace@...hat.com>
Signed-off-by: Paul Moore <paul@...l-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 security/selinux/selinuxfs.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -651,14 +651,13 @@ static ssize_t sel_write_load(struct fil
 	length = sel_make_policy_nodes(fsi, newpolicy);
 	if (length) {
 		selinux_policy_cancel(fsi->state, newpolicy);
-		goto out1;
+		goto out;
 	}
 
 	selinux_policy_commit(fsi->state, newpolicy);
 
 	length = count;
 
-out1:
 	audit_log(audit_context(), GFP_KERNEL, AUDIT_MAC_POLICY_LOAD,
 		"auid=%u ses=%u lsm=selinux res=1",
 		from_kuid(&init_user_ns, audit_get_loginuid(current)),