Application: kdeinit5 (3.0.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-22-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
I tried to make "apt-get install ttf-mscorefonts-installer". After some of 403 errors while wget tried to download fonts like arial32.exe and etc., app is crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konsole (kdeinit5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x00007fe77affb267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007fe77affceca in __GI_abort () at abort.c:89
#8  0x00007fe77b03ec53 in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7fe77b1571a8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007fe77b046c69 in malloc_printerr (ptr=<optimized out>, str=0x7fe77b1572b8 "double free or corruption (out)", action=1) at malloc.c:4965
#10 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3834
#11 0x00007fe77b04a89c in __GI___libc_free (mem=<optimized out>) at malloc.c:2950
#12 0x00007fe77b6a00b2 in QMetaCallEvent::~QMetaCallEvent() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fe77b6a0109 in QMetaCallEvent::~QMetaCallEvent() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fe77b674587 in QCoreApplication::removePostedEvents(QObject*, int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fe77b6a06fa in QObjectPrivate::~QObjectPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fe77b6a0809 in QObjectPrivate::~QObjectPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fe77b6ab83b in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fe767d57619 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#19 0x00007fe767d5bd3e in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#20 0x00007fe767d5be19 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#21 0x00007fe77c37a5c0 in QGuiApplicationPrivate::~QGuiApplicationPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007fe779a7a4e9 in QApplicationPrivate::~QApplicationPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007fe77b6ab83b in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fe779a7c133 in QApplication::~QApplication() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fe76a01b779 in kdemain (argc=5, argv=0xe82390) at ../../src/main.cpp:87
#26 0x0000000000408716 in launch (argc=argc@entry=5, _name=_name@entry=0xe82c28 "konsole", args=<optimized out>, args@entry=0xe82c30 "--noclose", cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0xe82c7d "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40b710 "0") at ../../../src/kdeinit/kinit.cpp:741
#27 0x000000000040a132 in handle_launcher_request (sock=8, who=who@entry=0x40b6c6 "launcher") at ../../../src/kdeinit/kinit.cpp:1180
#28 0x000000000040a6ee in handle_requests (waitForPid=waitForPid@entry=0) at ../../../src/kdeinit/kinit.cpp:1369
#29 0x000000000040501b in main (argc=5, argv=<optimized out>) at ../../../src/kdeinit/kinit.cpp:1860

Reported using DrKonqi