Merge tag 'selinux-pr-20180130' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:
"A small pull request this time, just three patches, and one of these
is just a comment update (swap the FSF physical address for a URL).

The other two patches are small bug fixes found by szybot/syzkaller;
they individual patch descriptions should tell you all you ever wanted
to know"

* tag 'selinux-pr-20180130' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: skip bounded transition processing if the policy isn't loaded
selinux: ensure the context is NUL terminated in security_context_to_sid_core()
security: replace FSF address with web source in license notices

security/selinux/include/netlabel.h

···
  * the GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program;  if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 

security/selinux/netlabel.c

···
  * the GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program;  if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 

security/selinux/ss/services.c

···
 	int index;
 	int rc;
 
+	if (!ss_initialized)
+		return 0;
+
 	read_lock(&policy_rwlock);
 
 	rc = -EINVAL;
···
 	if (!scontext_len)
 		return -EINVAL;
 
+	/* Copy the string to allow changes and ensure a NUL terminator */
+	scontext2 = kmemdup_nul(scontext, scontext_len, gfp_flags);
+	if (!scontext2)
+		return -ENOMEM;
+
 	if (!ss_initialized) {
 		int i;
 
 		for (i = 1; i < SECINITSID_NUM; i++) {
-			if (!strcmp(initial_sid_to_string[i], scontext)) {
+			if (!strcmp(initial_sid_to_string[i], scontext2)) {
 				*sid = i;
-				return 0;
+				goto out;
 			}
 		}
 		*sid = SECINITSID_KERNEL;
-		return 0;
+		goto out;
 	}
 	*sid = SECSID_NULL;
-
-	/* Copy the string so that we can modify the copy as we parse it. */
-	scontext2 = kmalloc(scontext_len + 1, gfp_flags);
-	if (!scontext2)
-		return -ENOMEM;
-	memcpy(scontext2, scontext, scontext_len);
-	scontext2[scontext_len] = 0;
 
 	if (force) {
 		/* Save another copy for storing in uninterpreted form */