From e2bb200d0008d93a68d4d65b0bfb4b8a6773c6be Mon Sep 17 00:00:00 2001
From: Edoardo Cavazza <edoardo.cavazza@chialab.it>
Date: Mon, 27 Jan 2025 09:03:49 +0100
Subject: [PATCH] Add validation for callout line in FreeText annotation

---
 src/core/annotation.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/annotation.js b/src/core/annotation.js
index fec27fdd6..f6007c5cc 100644
--- a/src/core/annotation.js
+++ b/src/core/annotation.js
@@ -3884,8 +3884,12 @@ class FreeTextAnnotation extends MarkupAnnotation {
     if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("MOZCENTRAL")) {
       if (dict.has("CL")) {
         this.setLineEnding(dict.getArray("LE"));
-        this.data.calloutLine = dict.getArray("CL");
         this.data.lineEnding = this.lineEnding;
+
+        const calloutLine = dict.getArray("CL");
+        if (isNumberArray(calloutLine)) {
+          this.data.calloutLine = calloutLine;
+        }
       }
     }