setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.Referenceshttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450https://codereview.qt-project.org/c/qt/qtbase/+/291706https://security.gentoo.org/glsa/202007-38
