diff --git a/services/core/java/com/android/server/wm/BLASTSyncEngine.java b/services/core/java/com/android/server/wm/BLASTSyncEngine.java
index 778951a545fa7..98ee98ba67f74 100644
--- a/services/core/java/com/android/server/wm/BLASTSyncEngine.java
+++ b/services/core/java/com/android/server/wm/BLASTSyncEngine.java
@@ -248,7 +248,10 @@ class BLASTSyncEngine {
                     Slog.e(TAG, "WM sent Transaction to organized, but never received" +
                            " commit callback. Application ANR likely to follow.");
                     Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
-                    onCommitted(merged);
+                    synchronized (mWm.mGlobalLock) {
+                        onCommitted(merged.mNativeObject != 0
+                                ? merged : mWm.mTransactionFactory.get());
+                    }
                 }
             };
             CommitCallback callback = new CommitCallback();