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Avoid NPE with malformed Visio diagram

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Fixes https://issues.oss-fuzz.com/issues/477312394
This commit is contained in:
Dominik Stadler 2026-02-14 16:53:30 +01:00
parent c92c533d7a
commit 5338b17a8f
3 changed files with 4 additions and 0 deletions
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poi-ooxml/src/main/java/org/apache/poi/xdgf/usermodel/section/geometry/RelLineTo.java
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@ -47,6 +47,10 @@ public class RelLineTo implements GeometryRow {
for (CellType cell : row.getCellArray()) { for (CellType cell : row.getCellArray()) {
String cellName = cell.getN(); String cellName = cell.getN();
if (cellName == null) {
throw new IllegalStateException("Cannot create a ReLineTo object without a cell-name indicating 'X' or 'Y' direction");
}
if (cellName.equals("X")) { if (cellName.equals("X")) {
x = XDGFCell.parseDoubleValue(cell); x = XDGFCell.parseDoubleValue(cell);
} else if (cellName.equals("Y")) { } else if (cellName.equals("Y")) {

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test-data/diagram/clusterfuzz-testcase-minimized-POIVisioFuzzer-6312416206454784.vsdx Normal file
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test-data/spreadsheet/stress.xls
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