================================================================= ==10552==ERROR: AddressSanitizer: heap-use-after-free on address 0x6120002dd9c0 at pc 0xcbbc7f bp 0x7fff7222ffb0 sp 0x7fff7222ffa8 READ of size 8 at 0x6120002dd9c0 thread T0 #0 0xcbbc7e in Ms::PaletteCell::~PaletteCell() /home/antonio/MuseScore/mscore/palette.cpp:46 #1 0xcbd3c8 in Ms::Palette::contextMenuEvent(QContextMenuEvent*) /home/antonio/MuseScore/mscore/palette.cpp:185 #2 0x7f7b59e92b3f in QWidget::event(QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x17eb3f) #3 0xcc477a in Ms::Palette::event(QEvent*) /home/antonio/MuseScore/mscore/palette.cpp:741 #4 0x7f7b59e5aa93 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x146a93) #5 0x7f7b59e5f752 in QApplication::notify(QObject*, QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x14b752) #6 0x7f7b5c946f03 in QCoreApplication::notifyInternal(QObject*, QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Core.so.5+0x2cef03) #7 0x7f7b59eb2f6c (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x19ef6c) #8 0x7f7b59eb59d7 (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x1a19d7) #9 0x7f7b59e5aa93 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x146a93) #10 0x7f7b59e5e0b5 in QApplication::notify(QObject*, QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x14a0b5) #11 0x7f7b5c946f03 in QCoreApplication::notifyInternal(QObject*, QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Core.so.5+0x2cef03) #12 0x7f7b5c03d536 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Gui.so.5+0xe8536) #13 0x7f7b5c03df74 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Gui.so.5+0xe8f74) #14 0x7f7b5c023207 in QWindowSystemInterface::sendWindowSystemEvents(QFlags) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Gui.so.5+0xce207) #15 0x7f7b49cc045f (/home/antonio/Qt5.3.1/5.3/gcc_64/plugins/platforms/libqxcb.so+0xad45f) #16 0x7f7b537d5e03 in g_main_context_dispatch (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x48e03) #17 0x7f7b537d6047 (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x49047) #18 0x7f7b537d60eb in g_main_context_iteration (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x490eb) #19 0x7f7b5c9a1573 in QEventDispatcherGlib::processEvents(QFlags) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Core.so.5+0x329573) #20 0x7f7b5c94511a in QEventLoop::exec(QFlags) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Core.so.5+0x2cd11a) #21 0x7f7b5c949fe4 in QCoreApplication::exec() (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Core.so.5+0x2d1fe4) #22 0xc8320e in main /home/antonio/MuseScore/mscore/musescore.cpp:5059 #23 0x7f7b5519eec4 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21ec4) #24 0x96dda8 (/usr/local/bin/mscore+0x96dda8) 0x6120002dd9c0 is located 0 bytes inside of 320-byte region [0x6120002dd9c0,0x6120002ddb00) freed by thread T0 here: #0 0x7f7b5d561877 in operator delete(void*) (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x55877) #1 0x110afa5 in Ms::TimeSig::~TimeSig() /home/antonio/MuseScore/libmscore/timesig.h:48 #2 0xcbd3b4 in Ms::Palette::contextMenuEvent(QContextMenuEvent*) /home/antonio/MuseScore/mscore/palette.cpp:184 #3 0x7f7b59e92b3f in QWidget::event(QEvent*) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Widgets.so.5+0x17eb3f) previously allocated by thread T0 here: #0 0x7f7b5d5613ff in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x553ff) #1 0xdc6a88 in Ms::TimeDialog::addClicked() /home/antonio/MuseScore/mscore/timedialog.cpp:84 #2 0x98272c in Ms::TimeDialog::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) /home/antonio/MuseScore/build.debug/mscore/moc_timedialog.cpp:81 #3 0x7f7b5c9787b0 in QMetaObject::activate(QObject*, int, int, void**) (/home/antonio/Qt5.3.1/5.3/gcc_64/lib/libQt5Core.so.5+0x3007b0) SUMMARY: AddressSanitizer: heap-use-after-free /home/antonio/MuseScore/mscore/palette.cpp:46 Ms::PaletteCell::~PaletteCell() Shadow bytes around the buggy address: 0x0c2480053ae0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2480053af0: fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa fa 0x0c2480053b00: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd 0x0c2480053b10: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2480053b20: fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa fa =>0x0c2480053b30: fa fa fa fa fa fa fa fa[fd]fd fd fd fd fd fd fd 0x0c2480053b40: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2480053b50: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2480053b60: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd 0x0c2480053b70: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2480053b80: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Heap right redzone: fb Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack partial redzone: f4 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Contiguous container OOB:fc ASan internal: fe ==10552==ABORTING