kmail crashes when selecting an mail item containing an attachment. It seems to happen specially when it's a PDF attachment, I have not tested all types of attached files. gdb backtraces up to libZXingCore.so. Downgrading zxing-cpp from 1.0.7 to 1.0.6 resolves the issue. For information. Regards. terminate called after throwing an instance of 'std::out_of_range' what(): vector::_M_range_check: __n (which is 1218) >= this->size() (which is 1044) Thread 1 "kmail" received signal SIGABRT, Aborted. 0x00007ffff65b8755 in raise () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007ffff65b8755 in raise () from /usr/lib/libc.so.6 #1 0x00007ffff65a3851 in abort () from /usr/lib/libc.so.6 #2 0x00007ffff67d681f in __gnu_cxx::__verbose_terminate_handler () at /build/ gcc/src/gcc/libstdc++-v3/libsupc++/vterminate.cc:95 #3 0x00007ffff67e330a in __cxxabiv1::__terminate (handler=<optimized out>) at / build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:47 #4 0x00007ffff67e3367 in std::terminate () at /build/gcc/src/gcc/libstdc++-v3/ libsupc++/eh_terminate.cc:57 #5 0x00007ffff67e35bd in __cxxabiv1::__cxa_throw (obj=obj@entry=0x55555b581b40, tinfo=0x7ffff691b488 <typeinfo for std::out_of_range>, dest=0x7ffff67f97a0 std::out_of_range::~out_of_range()) at /build/gcc/src/ gcc/libstdc++-v3/libsupc++/eh_throw.cc:95 #6 0x00007ffff67d9431 in std::__throw_out_of_range_fmt (__fmt=<optimized out>) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/functexcept.cc:82 #7 0x00007fff0e45a8c3 in ZXing::QRCode::FinderPatternFinder::Find(ZXing::BitMatrix const&, bool) () from /usr/lib/libZXingCore.so.1 #8 0x00007fff0e45767e in ZXing::QRCode::Detector::Detect(ZXing::BitMatrix const&, bool) () from /usr/lib/libZXingCore.so.1 #9 0x00007fff0e45bc94 in ZXing::QRCode::Reader::decode(ZXing::BinaryBitmap const&) const () from /usr/lib/libZXingCore.so.1 #10 0x00007fff0e3f80ff in ZXing::MultiFormatReader::read(ZXing::BinaryBitmap const&) const () from /usr/lib/libZXingCore.so.1 #11 0x00007fff3c127a31 in KItinerary::BarcodeDecoder::decodeZxing(QImage const&, QFlagsKItinerary::BarcodeDecoder::BarcodeType, KItinerary::BarcodeDecoder::Result&) const () from /usr/lib/ libKPimItinerary.so.5 #12 0x00007fff3c12802e in KItinerary::BarcodeDecoder::decodeIfNeeded(QImage const&, QFlagsKItinerary::BarcodeDecoder::BarcodeType, KItinerary::BarcodeDecoder::Result&) const () from /usr/lib/ libKPimItinerary.so.5 #13 0x00007fff3c12832d in KItinerary::BarcodeDecoder::decodeBinary(QImage const&, QFlagsKItinerary::BarcodeDecoder::BarcodeType) const () from /usr/lib/libKPimItinerary.so.5 #14 0x00007fff3c148d40 in ?? () from /usr/lib/libKPimItinerary.so.5 #15 0x00007fff3c14911f in ?? () from /usr/lib/libKPimItinerary.so.5 #16 0x00007fff3c135a94 in ?? () from /usr/lib/libKPimItinerary.so.5 #17 0x00007fff3c135ee6 in ?? () from /usr/lib/libKPimItinerary.so.5 #18 0x00007fff3c136225 in KItinerary::ExtractorEngine::extract() () from /usr/ lib/libKPimItinerary.so.5 #19 0x00007fff3c2ad59a in ?? () from /usr/lib/qt/plugins/messageviewer/ bodypartformatter/messageviewer_bodypartformatter_semantic.so #20 0x00007ffff535bcaa in MimeTreeParser::ObjectTreeParser::processType(KMime::Content*, MimeTreeParser::ProcessResult&, QByteArray const&) () from /usr/lib/libKF5MimeTreeParser.so.5 #21 0x00007ffff535c3d1 in MimeTreeParser::ObjectTreeParser::parseObjectTreeInternal(KMime::Content*, bool) () from /usr/lib/libKF5MimeTreeParser.so.5 #22 0x00007ffff536153f in MimeTreeParser::MessagePart::parseInternal(KMime::Content*, bool) () from / usr/lib/libKF5MimeTreeParser.so.5 #23 0x00007ffff53616c0 in MimeTreeParser::MimeMessagePart::MimeMessagePart(MimeTreeParser::ObjectTreeParser*, KMime::Content*, bool) () from /usr/lib/libKF5MimeTreeParser.so.5 #24 0x00007fff3c28b015 in ?? () from /usr/lib/qt/plugins/messageviewer/bodypartformatter/ messageviewer_bodypartformatter_application_gnupgwks.so #25 0x00007ffff535bcaa in MimeTreeParser::ObjectTreeParser::processType(KMime::Content*, MimeTreeParser::ProcessResult&, QByteArray const&) () from /usr/lib/libKF5MimeTreeParser.so.5 #26 0x00007ffff535c3d1 in MimeTreeParser::ObjectTreeParser::parseObjectTreeInternal(KMime::Content*, bool) () from /usr/lib/libKF5MimeTreeParser.so.5 #27 0x00007ffff535c7f0 in MimeTreeParser::ObjectTreeParser::parseObjectTree(KMime::Content*, bool) () from /usr/lib/libKF5MimeTreeParser.so.5 #28 0x00007ffff593fe05 in ?? () from /usr/lib/libKF5MessageViewer.so.5 #29 0x00007ffff5940514 in ?? () from /usr/lib/libKF5MessageViewer.so.5 #30 0x00007ffff594105f in ?? () from /usr/lib/libKF5MessageViewer.so.5 #31 0x00007ffff6be5b70 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5 #32 0x00007ffff6bf2b78 in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/ lib/libQt5Core.so.5 #33 0x00007ffff6be63e5 in QObject::event(QEvent*) () from /usr/lib/ libQt5Core.so.5 --Type <RET> for more, q to quit, c to continue without paging-- #34 0x00007ffff75734f5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #35 0x00007ffff757ce11 in QApplication::notify(QObject*, QEvent*) () from /usr/ lib/libQt5Widgets.so.5 #36 0x00007ffff6bb99c2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5 #37 0x00007ffff6c10d9d in QTimerInfoList::activateTimers() () from /usr/lib/ libQt5Core.so.5 #38 0x00007ffff6c1166a in ?? () from /usr/lib/libQt5Core.so.5 #39 0x00007ffff33923ae in g_main_context_dispatch () from /usr/lib/ libglib-2.0.so.0 #40 0x00007ffff33941c1 in ?? () from /usr/lib/libglib-2.0.so.0 #41 0x00007ffff3394201 in g_main_context_iteration () from /usr/lib/ libglib-2.0.so.0 #42 0x00007ffff6c11a03 in QEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) () from /usr/lib/libQt5Core.so.5 #43 0x00007ffff6bb84ec in QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) () from /usr/lib/ libQt5Core.so.5 #44 0x00007ffff6bc0326 in QCoreApplication::exec() () from /usr/lib/ libQt5Core.so.5 #45 0x000055555555806a in ?? () #46 0x00007ffff65a4ee3 in __libc_start_main () from /usr/lib/libc.so.6 #47 0x000055555555821e in ?? () (gdb)