From: Paul Moore <paul.moore@hp.com>
Date: Mon, 21 Jan 2008 22:31:00 +0000 (+1100)
Subject: selinux: fix memory leak in netlabel code
X-Git-Tag: firefly_0821_release~23764^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=45c950e0f839fded922ebc0bfd59b1081cc71b70;p=firefly-linux-kernel-4.4.55.git

selinux: fix memory leak in netlabel code

Fix a memory leak in security_netlbl_sid_to_secattr() as reported here:
 * https://bugzilla.redhat.com/show_bug.cgi?id=352281

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index d243ddc723a5..66e013d6f6f6 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -53,10 +53,11 @@ static int selinux_netlbl_sock_setsid(struct sock *sk, u32 sid)
 	struct sk_security_struct *sksec = sk->sk_security;
 	struct netlbl_lsm_secattr secattr;
 
+	netlbl_secattr_init(&secattr);
+
 	rc = security_netlbl_sid_to_secattr(sid, &secattr);
 	if (rc != 0)
-		return rc;
-
+		goto sock_setsid_return;
 	rc = netlbl_sock_setattr(sk, &secattr);
 	if (rc == 0) {
 		spin_lock_bh(&sksec->nlbl_lock);
@@ -64,6 +65,8 @@ static int selinux_netlbl_sock_setsid(struct sock *sk, u32 sid)
 		spin_unlock_bh(&sksec->nlbl_lock);
 	}
 
+sock_setsid_return:
+	netlbl_secattr_destroy(&secattr);
 	return rc;
 }
 
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index d572dc908f31..f83b19daed16 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2606,8 +2606,6 @@ int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr)
 	int rc = -ENOENT;
 	struct context *ctx;
 
-	netlbl_secattr_init(secattr);
-
 	if (!ss_initialized)
 		return 0;