Add CVE to Exynos vulnerability test.

Change-Id: Iea8ab76bc999a43c14298e88dccfc644ed7b5989
diff --git a/tests/tests/security/src/android/security/cts/CharDeviceTest.java b/tests/tests/security/src/android/security/cts/CharDeviceTest.java
index 88d36c8..51975b9 100644
--- a/tests/tests/security/src/android/security/cts/CharDeviceTest.java
+++ b/tests/tests/security/src/android/security/cts/CharDeviceTest.java
@@ -25,7 +25,7 @@
     }
 
     /**
-     * Detect Exynos 4xxx rooting vuln.
+     * Detect Exynos 4xxx rooting vuln.  CVE-2012-6422.
      *
      * Reference: http://forum.xda-developers.com/showthread.php?t=2048511
      */
@@ -34,7 +34,7 @@
     }
 
     /**
-     * Detect Exynos 4xxx kernel memory leak to userspace.
+     * Detect Exynos 4xxx kernel memory leak to userspace. CVE-2012-6422.
      *
      * Reference: http://forum.xda-developers.com/showthread.php?t=2048511
      */