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-rw-r--r--libqpdf/QPDFPageLabelDocumentHelper.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/libqpdf/QPDFPageLabelDocumentHelper.cc b/libqpdf/QPDFPageLabelDocumentHelper.cc
index a650fa9c..4be9073f 100644
--- a/libqpdf/QPDFPageLabelDocumentHelper.cc
+++ b/libqpdf/QPDFPageLabelDocumentHelper.cc
@@ -53,6 +53,7 @@ QPDFPageLabelDocumentHelper::getLabelForPage(long long page_idx)
{
start = St.getIntValue();
}
+ QIntC::range_check(start, offset);
start += offset;
result = QPDFObjectHandle::newDictionary();
result.replaceOrRemoveKey("/S", S);