STEPS TO REPRODUCE 1. Set root password to word containing double quote(") 2. Run kdesu any_application 3. Enter password and check "Remember password" OBSERVED RESULT Application does not start. No errors displayed. kdesu silently quits and all. EXPECTED RESULT kdesu should understand all printable characters in password SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch linux KDE Plasma Version: 5.19.2 KDE Frameworks Version: 5.71 Qt Version: 5.15