File icu.rhbz1074549.CVE-2013-5907.patch of Package libicu

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File icu.rhbz1074549.CVE-2013-5907.patch of Package libicu

# erAck: resolves https://bugzilla.redhat.com/show_bug.cgi?id=1074549
# Based on http://hg.openjdk.java.net/jdk7u/jdk7u/jdk/rev/9d29c19f1de1
# where a/src/share/native/sun/font/layout/LookupProcessor.cpp is
# icu/source/layout/LookupProcessor.cpp
# Adapted to LayoutEngine "patch" and subsequent patches.
# Note that
#@@ -246,7 +249,7 @@
#-      featureReferences += SWAPW(featureTable->lookupCount);
#+      featureReferences += SWAPW(requiredFeatureTable->lookupCount);
# was already applied with icu.8800.freeserif.crash.patch that also added
#+      if (requiredFeatureTable.isValid()) {
# and is a slightly enhanced version of
# https://ssl.icu-project.org/trac/ticket/8800 and/or
# https://ssl.icu-project.org/trac/ticket/8320

--- prev.icu/source/layout/LookupProcessor.cpp	2014-03-11 20:46:53.288819882 +0100
+++ icu/source/layout/LookupProcessor.cpp	2014-03-11 20:54:43.153370234 +0100
@@ -113,7 +113,7 @@
 le_int32 LookupProcessor::selectLookups(const LEReferenceTo<FeatureTable> &featureTable, FeatureMask featureMask, le_int32 order, LEErrorCode &success)
 {
   le_uint16 lookupCount = featureTable.isValid()? SWAPW(featureTable->lookupCount) : 0;
-    le_int32  store = order;
+    le_uint32  store = (le_uint32)order;
     
     LEReferenceToArrayOf<le_uint16> lookupListIndexArray(featureTable, success, featureTable->lookupListIndexArray, lookupCount);
 
@@ -122,6 +122,9 @@
       if (lookupListIndex >= lookupSelectCount) {
         continue;
       }
+      if (store >= lookupOrderCount) {
+        continue;
+      }
       
       lookupSelectArray[lookupListIndex] |= featureMask;
       lookupOrderArray[store++] = lookupListIndex;

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File icu.rhbz1074549.CVE-2013-5907.patch of Package libicu

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