Author: centic
Date: Sat Dec 30 19:39:31 2023
New Revision: 1915004

URL: http://svn.apache.org/viewvc?rev=1915004&view=rev
Log:
Bug 66425: Avoid exceptions found via poi-fuzz

Prevent NullPointerException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64943

Added:
    
poi/trunk/test-data/document/clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc
Modified:
    
poi/trunk/poi-scratchpad/src/main/java/org/apache/poi/hwpf/converter/AbstractWordConverter.java
    
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToConverterSuite.java
    
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToTextConverter.java
    poi/trunk/test-data/spreadsheet/stress.xls

Modified: 
poi/trunk/poi-scratchpad/src/main/java/org/apache/poi/hwpf/converter/AbstractWordConverter.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/poi-scratchpad/src/main/java/org/apache/poi/hwpf/converter/AbstractWordConverter.java?rev=1915004&r1=1915003&r2=1915004&view=diff
==============================================================================
--- 
poi/trunk/poi-scratchpad/src/main/java/org/apache/poi/hwpf/converter/AbstractWordConverter.java
 (original)
+++ 
poi/trunk/poi-scratchpad/src/main/java/org/apache/poi/hwpf/converter/AbstractWordConverter.java
 Sat Dec 30 19:39:31 2023
@@ -745,6 +745,10 @@ public abstract class AbstractWordConver
             }
             case FIELD_DROP_DOWN: {
                 Range fieldContent = field.firstSubrange(parentRange);
+                if (fieldContent == null) {
+                    throw new IllegalStateException("Cannot read field content 
from field " + field + " and range " + parentRange);
+                }
+
                 CharacterRun cr = fieldContent.getCharacterRun(fieldContent
                     .numCharacterRuns() - 1);
                 String[] values = cr.getDropDownListValues();

Modified: 
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToConverterSuite.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToConverterSuite.java?rev=1915004&r1=1915003&r2=1915004&view=diff
==============================================================================
--- 
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToConverterSuite.java
 (original)
+++ 
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToConverterSuite.java
 Sat Dec 30 19:39:31 2023
@@ -61,7 +61,8 @@ public class TestWordToConverterSuite {
         "clusterfuzz-testcase-minimized-POIHWPFFuzzer-4947285593948160.doc",
         "clusterfuzz-testcase-minimized-POIHWPFFuzzer-5440721166139392.doc",
         "clusterfuzz-testcase-minimized-POIHWPFFuzzer-5050208641482752.doc",
-        "clusterfuzz-testcase-minimized-POIHWPFFuzzer-4892412469968896.doc"
+        "clusterfuzz-testcase-minimized-POIHWPFFuzzer-4892412469968896.doc",
+        "clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc"
     );
 
     public static Stream<Arguments> files() {

Modified: 
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToTextConverter.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToTextConverter.java?rev=1915004&r1=1915003&r2=1915004&view=diff
==============================================================================
--- 
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToTextConverter.java
 (original)
+++ 
poi/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/converter/TestWordToTextConverter.java
 Sat Dec 30 19:39:31 2023
@@ -54,7 +54,8 @@ public class TestWordToTextConverter {
         "clusterfuzz-testcase-minimized-POIHWPFFuzzer-4947285593948160.doc",
         "clusterfuzz-testcase-minimized-POIHWPFFuzzer-5440721166139392.doc",
         "clusterfuzz-testcase-minimized-POIHWPFFuzzer-5050208641482752.doc",
-        "clusterfuzz-testcase-minimized-POIHWPFFuzzer-4892412469968896.doc"
+        "clusterfuzz-testcase-minimized-POIHWPFFuzzer-4892412469968896.doc",
+        "clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc"
     );
 
     /**

Added: 
poi/trunk/test-data/document/clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc
URL: 
http://svn.apache.org/viewvc/poi/trunk/test-data/document/clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc?rev=1915004&view=auto
==============================================================================
Binary files 
poi/trunk/test-data/document/clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc
 (added) and 
poi/trunk/test-data/document/clusterfuzz-testcase-minimized-POIHWPFFuzzer-6610789829836800.doc
 Sat Dec 30 19:39:31 2023 differ

Modified: poi/trunk/test-data/spreadsheet/stress.xls
URL: 
http://svn.apache.org/viewvc/poi/trunk/test-data/spreadsheet/stress.xls?rev=1915004&r1=1915003&r2=1915004&view=diff
==============================================================================
Binary files - no diff available.



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