From 25e11a444a25840e2b4635dbcb0197d5bb935d25 Mon Sep 17 00:00:00 2001
From: m-holger <m.holger@qpdf.org>
Date: Tue, 16 Jul 2024 14:44:47 +0100
Subject: [PATCH] Throw an exception if the root of the pages tree misses the
 /Kids array

---
 libqpdf/QPDF_pages.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libqpdf/QPDF_pages.cc b/libqpdf/QPDF_pages.cc
index 8c6a20e7..0c8f3829 100644
--- a/libqpdf/QPDF_pages.cc
+++ b/libqpdf/QPDF_pages.cc
@@ -66,10 +66,12 @@ QPDF::getAllPages()
             getRoot().replaceKey("/Pages", pages);
         }
         seen.clear();
-        if (pages.hasKey("/Kids")) {
+        if (!pages.hasKey("/Kids")) {
             // Ensure we actually found a /Pages object.
-            getAllPagesInternal(pages, visited, seen, false);
+            throw QPDFExc(
+                qpdf_e_pages, m->file->getName(), "", 0, "root of pages tree has no /Kids array");
         }
+        getAllPagesInternal(pages, visited, seen, false);
         if (m->invalid_page_found) {
             flattenPagesTree();
             m->invalid_page_found = false;