Resolves: rhbz#674328 more ways that freeserif crashes libicu

This commit is contained in:
Caolán McNamara 2011-02-03 09:42:02 +00:00
parent 69ffdeb52a
commit 6c883575a1
2 changed files with 42 additions and 2 deletions

View File

@ -1,4 +1,13 @@
diff -ru icu.orig/source/layout/LookupProcessor.cpp icu/source/layout/LookupProcessor.cpp
--- 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 @@
@ -12,3 +21,31 @@ diff -ru icu.orig/source/layout/LookupProcessor.cpp icu/source/layout/LookupProc
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;

View File

@ -1,6 +1,6 @@
Name: icu
Version: 4.4.2
Release: 5%{?dist}
Release: 6%{?dist}
Summary: International Components for Unicode
Group: Development/Tools
License: MIT and UCD and Public Domain
@ -148,6 +148,9 @@ rm -rf $RPM_BUILD_ROOT
%doc source/__docs/%{name}/html/*
%changelog
* Thu Feb 03 2011 Caolán McNamara <caolanm@redhat.com> - 4.4.2-6
- Resolves: rhbz#674328 more ways that freeserif crashes libicu
* Wed Feb 02 2011 Caolán McNamara <caolanm@redhat.com> - 4.4.2-5
- Resolves: rhbz#674328 freeserif crashes libicu