--- icu/source/layout/LookupProcessor.h	2011-02-03 09:20:27.657005678 +0000
+++ icu/source/layout/LookupProcessor.h	2011-02-03 09:25:34.498396208 +0000
@@ -58,6 +58,7 @@
     const FeatureListTable  *featureListTable;

     FeatureMask            *lookupSelectArray;
+    le_uint32              lookupSelectCount;

     le_uint16               *lookupOrderArray;
     le_uint32               lookupOrderCount;
--- icu/source/layout/LookupProcessor.cpp	2011-02-02 12:29:54.369077099 +0000
+++ icu/source/layout/LookupProcessor.cpp	2011-02-02 12:31:54.215503036 +0000
@@ -70,6 +70,10 @@
 
         if (selectMask != 0) {
             const LookupTable *lookupTable = lookupListTable->getLookupTable(lookup);
+
+            if (!lookupTable)
+                continue;
+
             le_uint16 lookupFlags = SWAPW(lookupTable->lookupFlags);
             
             glyphIterator.reset(lookupFlags, selectMask);
@@ -111,6 +115,9 @@
     for (le_uint16 lookup = 0; lookup < lookupCount; lookup += 1) {
         le_uint16 lookupListIndex = SWAPW(featureTable->lookupListIndexArray[lookup]);
 
+	if (lookupListIndex >= lookupSelectCount)
+	    continue;
+
         lookupSelectArray[lookupListIndex] |= featureMask;
         lookupOrderArray[store++] = lookupListIndex;
     }
@@ -122,7 +129,7 @@
         Offset scriptListOffset, Offset featureListOffset, Offset lookupListOffset,
         LETag scriptTag, LETag languageTag, const FeatureMap *featureMap, le_int32 featureMapCount, le_bool orderFeatures, 
         LEErrorCode& success)
-    : lookupListTable(NULL), featureListTable(NULL), lookupSelectArray(NULL),
+    : lookupListTable(NULL), featureListTable(NULL), lookupSelectArray(NULL), lookupSelectCount(0),
       lookupOrderArray(NULL), lookupOrderCount(0)
 {
     const ScriptListTable *scriptListTable = NULL;
@@ -170,6 +177,8 @@
         lookupSelectArray[i] = 0;
     }
 
+    lookupSelectCount = lookupListCount;
+
     le_int32 count, order = 0;
     le_int32 featureReferences = 0;
     const FeatureTable *featureTable = NULL;
@@ -186,6 +195,10 @@
         le_uint16 featureIndex = SWAPW(langSysTable->featureIndexArray[feature]);
 
         featureTable = featureListTable->getFeatureTable(featureIndex, &featureTag);
+
+        if (!featureTable)
+             continue;
+
         featureReferences += SWAPW(featureTable->lookupCount);
     }