KDiskMark before 3.1.0 lacks authorization checking for D-Bus methods such as Helper::flushPageCache.
www.openwall.com/lists/oss-security/2022/09/14/1
github.com/JonMagon/KDiskMark/commit/3c90083a4f5ba3f240a797e509d818221542bbdc
github.com/JonMagon/KDiskMark/compare/3.0.0...3.1.0
github.com/JonMagon/KDiskMark/releases/tag/3.1.0
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YYO3GWTNPHNCLHSI562Q3KX43PW7FQ4Q/