diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index cb42549aa..35dba1221 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -635,6 +635,7 @@ void IPCThreadState::decWeakHandle(int32_t handle)
 
 status_t IPCThreadState::attemptIncStrongHandle(int32_t handle)
 {
+#if HAS_BC_ATTEMPT_ACQUIRE
     LOG_REMOTEREFS("IPCThreadState::attemptIncStrongHandle(%d)\n", handle);
     mOut.writeInt32(BC_ATTEMPT_ACQUIRE);
     mOut.writeInt32(0); // xxx was thread priority
@@ -649,6 +650,11 @@ status_t IPCThreadState::attemptIncStrongHandle(int32_t handle)
 #endif
     
     return result;
+#else
+    (void)handle;
+    ALOGE("%s(%d): Not supported\n", __func__, handle);
+    return INVALID_OPERATION;
+#endif
 }
 
 void IPCThreadState::expungeHandle(int32_t handle, IBinder* binder)
@@ -898,6 +904,7 @@ status_t IPCThreadState::writeTransactionData(int32_t cmd, uint32_t binderFlags,
 {
     binder_transaction_data tr;
 
+    tr.target.ptr = 0; /* Don't pass uninitialized stack data to a remote process */
     tr.target.handle = handle;
     tr.code = code;
     tr.flags = binderFlags;
@@ -915,7 +922,7 @@ status_t IPCThreadState::writeTransactionData(int32_t cmd, uint32_t binderFlags,
         tr.flags |= TF_STATUS_CODE;
         *statusBuffer = err;
         tr.data_size = sizeof(status_t);
-        tr.data.ptr.buffer = reinterpret_cast<binder_uintptr_t>(statusBuffer);
+        tr.data.ptr.buffer = reinterpret_cast<uintptr_t>(statusBuffer);
         tr.offsets_size = 0;
         tr.data.ptr.offsets = 0;
     } else {
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 56e6d8097..159003d16 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -165,6 +165,7 @@ status_t flatten_binder(const sp<ProcessState>& /*proc*/,
             }
             const int32_t handle = proxy ? proxy->handle() : 0;
             obj.type = BINDER_TYPE_HANDLE;
+            obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */
             obj.handle = handle;
             obj.cookie = 0;
         } else {
@@ -198,6 +199,7 @@ status_t flatten_binder(const sp<ProcessState>& /*proc*/,
                 }
                 const int32_t handle = proxy ? proxy->handle() : 0;
                 obj.type = BINDER_TYPE_WEAK_HANDLE;
+                obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */
                 obj.handle = handle;
                 obj.cookie = 0;
             } else {
@@ -749,6 +751,7 @@ status_t Parcel::writeFileDescriptor(int fd, bool takeOwnership)
     flat_binder_object obj;
     obj.type = BINDER_TYPE_FD;
     obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS;
+    obj.binder = 0; /* Don't pass uninitialized stack data to a remote process */
     obj.handle = fd;
     obj.cookie = takeOwnership ? 1 : 0;
     return writeObject(obj, true);