diff --git a/Source/WebCore/PAL/pal/spi/cocoa/MediaToolboxSPI.h b/Source/WebCore/PAL/pal/spi/cocoa/MediaToolboxSPI.h
index f9a7f670aacc..b234d002a16e 100644
--- a/Source/WebCore/PAL/pal/spi/cocoa/MediaToolboxSPI.h
+++ b/Source/WebCore/PAL/pal/spi/cocoa/MediaToolboxSPI.h
@@ -42,6 +42,7 @@
 enum {
     kMTPluginFormatReaderError_AllocationFailure = -16501,
     kMTPluginFormatReaderError_ParsingFailure = -16503,
+    kMTPluginFormatReaderError_InternalFailure = -16504,
     kMTPluginSampleCursorError_NoSamples = -16507,
     kMTPluginSampleCursorError_LocationNotAvailable = -16508,
     kMTPluginByteSourceError_EndOfStream = -16511,
diff --git a/Source/WebKit/Shared/mac/MediaFormatReader/MediaFormatReader.cpp b/Source/WebKit/Shared/mac/MediaFormatReader/MediaFormatReader.cpp
index 6a6bdf2f71ca..53b15db1fb67 100644
--- a/Source/WebKit/Shared/mac/MediaFormatReader/MediaFormatReader.cpp
+++ b/Source/WebKit/Shared/mac/MediaFormatReader/MediaFormatReader.cpp
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (C) 2020-2022 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -279,6 +279,9 @@ OSStatus MediaFormatReader::copyTrackArray(CFArrayRef* trackArrayCopy)
         return m_parseTracksStatus.has_value() || action.aborted();
     });
 
+    if (action.aborted())
+        return kMTPluginFormatReaderError_InternalFailure;
+
     if (*m_parseTracksStatus != noErr)
         return *m_parseTracksStatus;