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-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
index e0fd3bfaee..ce397d2a53 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
@@ -3989,7 +3989,7 @@ FX_BOOL CPDF_DataAvail::CheckUnkownPageNode(FX_DWORD dwPageNo, CPDF_PageNode *pP
FX_BOOL CPDF_DataAvail::CheckPageNode(CPDF_PageNode &pageNodes, FX_INT32 iPage, FX_INT32 &iCount, IFX_DownloadHints* pHints)
{
FX_INT32 iSize = pageNodes.m_childNode.GetSize();
- if (!iSize) {
+ if (iSize <= 0 || iPage >= iSize) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return FALSE;
}