diff --git a/bluetooth/1.0/default/OWNERS b/bluetooth/1.0/default/OWNERS
new file mode 100644
index 0000000..5df5bfe
--- /dev/null
+++ b/bluetooth/1.0/default/OWNERS
@@ -0,0 +1,3 @@
+eisenbach@google.com
+mylesgw@google.com
+pavlin@google.com
diff --git a/bluetooth/1.0/default/vendor_interface.cc b/bluetooth/1.0/default/vendor_interface.cc
index ffc283e..15b6c74 100644
--- a/bluetooth/1.0/default/vendor_interface.cc
+++ b/bluetooth/1.0/default/vendor_interface.cc
@@ -226,6 +226,11 @@
   int fd_list[CH_MAX] = {0};
   int fd_count = lib_interface_->op(BT_VND_OP_USERIAL_OPEN, &fd_list);
 
+  if (fd_count < 1 || fd_count > CH_MAX - 1) {
+    ALOGE("%s: fd_count %d is invalid!", __func__, fd_count);
+    return false;
+  }
+
   for (int i = 0; i < fd_count; i++) {
     if (fd_list[i] == INVALID_FD) {
       ALOGE("%s: fd %d is invalid!", __func__, fd_list[i]);
diff --git a/nfc/1.0/default/OWNERS b/nfc/1.0/default/OWNERS
new file mode 100644
index 0000000..984e5f9
--- /dev/null
+++ b/nfc/1.0/default/OWNERS
@@ -0,0 +1,2 @@
+eisenbach@google.com
+kandoiruchi@google.com
diff --git a/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp b/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp
index 3006508..357270f 100644
--- a/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp
+++ b/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp
@@ -1235,6 +1235,11 @@
 
   SensorInfo sensor = defaultSensorByType(type);
 
+  if (!isValidType(sensor.type)) {
+    // no default sensor of this type
+    return;
+  }
+
   if (!isDirectReportRateSupported(sensor, rate)) {
     return;
   }
diff --git a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
index 06e21ff..3c23135 100644
--- a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
@@ -182,6 +182,8 @@
         EXPECT_EQ(WifiStatusCode::SUCCESS,
                   HIDL_INVOKE(wifi_chip_, configureChip, mode.id).code);
         stopWifi();
+        // Sleep for 5 milliseconds between each wifi state toggle.
+        usleep(5000);
     }
 }