From 30688fb1c434b141380aa224da12e8246a8a78e1 Mon Sep 17 00:00:00 2001
From: Lei Zhang <thestig@chromium.org>
Date: Wed, 18 Jul 2018 05:07:28 +0000
Subject: Do not add invalid objects to the cross reference table.

BUG=chromium:851994

Change-Id: I2e14401271c70afa204221e0f3d469f0b82ce8cf
Reviewed-on: https://pdfium-review.googlesource.com/37871
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
---
 core/fpdfapi/parser/cpdf_parser.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'core/fpdfapi/parser/cpdf_parser.cpp')

diff --git a/core/fpdfapi/parser/cpdf_parser.cpp b/core/fpdfapi/parser/cpdf_parser.cpp
index 54e05245a9..ecc0546de0 100644
--- a/core/fpdfapi/parser/cpdf_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_parser.cpp
@@ -777,7 +777,8 @@ bool CPDF_Parser::RebuildCrossRef() {
                     }
                   }
                 }
-                cross_ref_table->AddNormal(objnum, gennum, obj_pos);
+                if (objnum < kMaxObjectNumber)
+                  cross_ref_table->AddNormal(objnum, gennum, obj_pos);
               }
               state = ParserState::kDefault;
               break;
-- 
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