diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index d2919e7..e933f7e 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -516,14 +516,16 @@
 
 bool IPCThreadState::flushIfNeeded()
 {
-    if (mIsLooper || mServingStackPointer != nullptr) {
+    if (mIsLooper || mServingStackPointer != nullptr || mIsFlushing) {
         return false;
     }
+    mIsFlushing = true;
     // In case this thread is not a looper and is not currently serving a binder transaction,
     // there's no guarantee that this thread will call back into the kernel driver any time
     // soon. Therefore, flush pending commands such as BC_FREE_BUFFER, to prevent them from getting
     // stuck in this thread's out buffer.
     flushCommands();
+    mIsFlushing = false;
     return true;
 }
 
@@ -880,6 +882,7 @@
         mWorkSource(kUnsetWorkSource),
         mPropagateWorkSource(false),
         mIsLooper(false),
+        mIsFlushing(false),
         mStrictModePolicy(0),
         mLastTransactionBinderFlags(0),
         mCallRestriction(mProcess->mCallRestriction) {