Title: [289044] trunk/Source/WebCore
- Revision
- 289044
- Author
- [email protected]
- Date
- 2022-02-03 05:23:42 -0800 (Thu, 03 Feb 2022)
Log Message
Crash in AXIsolatedObject::associatedAXObject.
https://bugs.webkit.org/show_bug.cgi?id=236053
<rdar://problem/88413232>
Reviewed by Darin Adler.
The crash occurs because we are using an axObject pointer after we call
updateBackingStore() which may destroy the object pointed to by axObject.
This was added as a fix for
https://bugs.webkit.org/show_bug.cgi?id=220446
So I will submit a follow up patch with the correct fix for that bug as well.
* accessibility/isolatedtree/AXIsolatedObject.cpp:
(WebCore::AXIsolatedObject::associatedAXObject const):
Modified Paths
Diff
Modified: trunk/Source/WebCore/ChangeLog (289043 => 289044)
--- trunk/Source/WebCore/ChangeLog 2022-02-03 13:21:54 UTC (rev 289043)
+++ trunk/Source/WebCore/ChangeLog 2022-02-03 13:23:42 UTC (rev 289044)
@@ -1,3 +1,20 @@
+2022-02-03 Andres Gonzalez <[email protected]>
+
+ Crash in AXIsolatedObject::associatedAXObject.
+ https://bugs.webkit.org/show_bug.cgi?id=236053
+ <rdar://problem/88413232>
+
+ Reviewed by Darin Adler.
+
+ The crash occurs because we are using an axObject pointer after we call
+ updateBackingStore() which may destroy the object pointed to by axObject.
+ This was added as a fix for
+ https://bugs.webkit.org/show_bug.cgi?id=220446
+ So I will submit a follow up patch with the correct fix for that bug as well.
+
+ * accessibility/isolatedtree/AXIsolatedObject.cpp:
+ (WebCore::AXIsolatedObject::associatedAXObject const):
+
2022-02-03 Chris Lord <[email protected]>
Add specialize type traits to GLContext
Modified: trunk/Source/WebCore/accessibility/isolatedtree/AXIsolatedObject.cpp (289043 => 289044)
--- trunk/Source/WebCore/accessibility/isolatedtree/AXIsolatedObject.cpp 2022-02-03 13:21:54 UTC (rev 289043)
+++ trunk/Source/WebCore/accessibility/isolatedtree/AXIsolatedObject.cpp 2022-02-03 13:23:42 UTC (rev 289044)
@@ -438,14 +438,8 @@
if (!m_id.isValid())
return nullptr;
- if (auto* axObjectCache = this->axObjectCache()) {
- if (auto* axObject = axObjectCache->objectFromAXID(m_id)) {
- axObject->updateBackingStore();
- return axObject;
- }
- }
-
- return nullptr;
+ auto* axObjectCache = this->axObjectCache();
+ return axObjectCache ? axObjectCache->objectFromAXID(m_id) : nullptr;
}
void AXIsolatedObject::setMathscripts(AXPropertyName propertyName, AXCoreObject& object)
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