Bail out on bad size and height in CCodec_FaxDecoder::CreateDecoder

core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp

Index: core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
diff --git a/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp b/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
index 72a9518ca956a5a14537f768d13aa421a3b67e67..1b5bd024f8ddb3684d89d1a1c29804b2495ceaee 100644
--- a/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
+++ b/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
@@ -248,9 +248,6 @@ CCodec_ScanlineDecoder* FPDFAPI_CreateFaxDecoder(
     if (Rows > USHRT_MAX) {
       Rows = 0;
     }
-    if (Columns <= 0 || Rows < 0 || Columns > USHRT_MAX || Rows > USHRT_MAX) {
-      return nullptr;
-    }
   }
   return CPDF_ModuleMgr::Get()->GetFaxModule()->CreateDecoder(
       src_buf, src_size, width, height, K, EndOfLine, ByteAlign, BlackIs1,