[Webkit-unassigned] [Bug 287400] New: use-after-free in MarkupAccumulator::serializeNodesWithNamespaces

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=287400

            Bug ID: 287400
           Summary: use-after-free in
                    MarkupAccumulator::serializeNodesWithNamespaces
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: HTML Editing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: xc.o.c.1180 at gmail.com
                CC: wenson_hsieh at apple.com

There are a few namespaceStack.append(namespaceStack.last()), namespaceStack is a Vector, last() returns a reference, if the Vector expands during appending, last() references freed memory.

For example, line 308
            if (auto* child = firstChild(*current)) {
                current = child;
                namespaceStack.append(namespaceStack.last());
                continue;
            }

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20250210/8bc34783/attachment.htm>