Why does "plasma-desktop" crash after QT update? - Red Hat Customer Portal

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Issue

plasma-desktop crashes if starting a Qt X11 program that doesn't have its own icon (using the default X icon, e.g. /usr/bin/qtconfig-qt4) and hover over it in the taskmanager window.
Following message seen under /var/log/messages when kdebase-workspace crashes.

[abrt] kdebase-workspace-4.3.4-24.el6: Process /usr/bin/plasma-desktop was killed by signal 11 (SIGSEGV)

Environment

Red Hat Enterprise Linux 6.5
qt-4.6.2-28.el6_5
kdebase-workspace-4.3.4-24.el6.x86_64

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