From 121fcc597d7d756737613570ac05a09911cec265 Mon Sep 17 00:00:00 2001
From: Ulf Hermann <ulf.hermann@qt.io>
Date: Tue, 26 Mar 2024 12:09:23 +0100
Subject: [PATCH] QQuickTextEdit: Check QQuickAccessibleAttached for nullptr

If the host object is in the process of being deleted, the attached
object will be null. We cannot rule this out here, and crashes have been
reported.

Amends commmit 12517742fcbd40b2311b94abe840532eae3d8914

Pick-to: 6.7
Change-Id: I31fcab2999c8ab8c20f3a2cd58060cbbefa7de40
---

diff --git a/src/quick/items/qquicktextedit.cpp b/src/quick/items/qquicktextedit.cpp
index 006d235..66615d9 100644
--- a/src/quick/items/qquicktextedit.cpp
+++ b/src/quick/items/qquicktextedit.cpp
@@ -1015,10 +1015,11 @@
         return;
 
     Q_Q(QQuickTextEdit);
-    QQuickAccessibleAttached *accessibleAttached = qobject_cast<QQuickAccessibleAttached *>(qmlAttachedPropertiesObject<QQuickAccessibleAttached>(q, true));
-    Q_ASSERT(accessibleAttached);
-    accessibleAttached->setRole(effectiveAccessibleRole());
-    accessibleAttached->set_readOnly(q->isReadOnly());
+    if (QQuickAccessibleAttached *accessibleAttached = qobject_cast<QQuickAccessibleAttached *>(
+                qmlAttachedPropertiesObject<QQuickAccessibleAttached>(q, true))) {
+        accessibleAttached->setRole(effectiveAccessibleRole());
+        accessibleAttached->set_readOnly(q->isReadOnly());
+    }
 }
 
 QAccessible::Role QQuickTextEditPrivate::accessibleRole() const