[dolphin] [Bug 414227] New: Dolphin crashes when retrieving metadata from dangling symlink

Ismael Asensio bugzilla_noreply at kde.org
Sun Nov 17 11:44:31 GMT 2019 

https://bugs.kde.org/show_bug.cgi?id=414227

            Bug ID: 414227
           Summary: Dolphin crashes when retrieving metadata from dangling
                    symlink
           Product: dolphin
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: isma.af at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

Application: dolphin (19.11.80)
 (Compiled from sources)
Qt Version: 5.12.4
Frameworks Version: 5.65.0
Operating System: Linux 5.3.0-23-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
- Steps to reproduce:
With panel information open, hover over a dangling symlink

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb1c8498280 (LWP 28827))]

Thread 5 (Thread 0x7fb1bde3e700 (LWP 28854)):
#0  __libc_enable_asynccancel () at
../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007fb1cee75c17 in __GI___poll (fds=0x7fb1ac0025e0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fb1ca61ea3e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb1ca61eb73 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb1cc90e6c3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb1cc8b563b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb1cc6eea75 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb1cc6efcc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb1caebc669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#9  0x00007fb1cee82323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fb1bfebe700 (LWP 28830)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x563116765408) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5631167653b8,
cond=0x5631167653e0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5631167653e0, mutex=0x5631167653b8) at
pthread_cond_wait.c:638
#3  0x00007fb1c46c097b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fb1c46c059b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fb1caebc669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#6  0x00007fb1cee82323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb1c646f700 (LWP 28829)):
#0  0x00007fb1cee75c2f in __GI___poll (fds=0x7fb1b8012220, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb1ca61ea3e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb1ca61eb73 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb1cc90e6c3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb1cc8b563b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb1cc6eea75 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb1ccb8fefa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fb1cc6efcc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb1caebc669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#9  0x00007fb1cee82323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb1c7359700 (LWP 28828)):
#0  0x00007fb1cee75c2f in __GI___poll (fds=0x7fb1c7358ca8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb1cae79917 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb1cae7b53a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb1c7b3c288 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fb1cc6efcc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb1caebc669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#6  0x00007fb1cee82323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb1c8498280 (LWP 28827)):
[KCrash Handler]
#6  0x00007fb1cc6fd651 in QByteArray::QByteArray(int, Qt::Initialization) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb1cc3646df in k_queryAttributes (path=..., attributes=...) at
/home/isma/kde/src/kfilemetadata/src/xattr_p.h:240
#8  0x00007fb1cc36616f in KFileMetaData::UserMetaData::queryAttributes
(this=0x7fff6d802950, attributes=...) at
/home/isma/kde/src/kfilemetadata/src/usermetadata.cpp:220
#9  0x00007fb1ce68fd25 in Baloo::Private::convertUserMetaData (metaData=...) at
/home/isma/kde/src/baloo-widgets/src/filemetadatautil.cpp:37
#10 0x00007fb1ce67ce75 in Baloo::FileFetchJob::doStart (this=0x563116b8d010) at
/home/isma/kde/src/baloo-widgets/src/filefetchjob.cpp:72
#11 0x00007fb1ce699c5c in Baloo::FileFetchJob::qt_static_metacall
(_o=0x563116b8d010, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x563117ac04c0)
at
/home/isma/kde/build/baloo-widgets/src/KF5BalooWidgets_autogen/EWIEGA46WW/moc_filefetchjob.cpp:71
#12 0x00007fb1cc8e2eba in QObject::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fb1cd3caa86 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fb1cd3d3e00 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fb1cc8b6a9a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fb1cc8b9718 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fb1cc90f0a7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fb1ca61e84d in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fb1ca61ead0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fb1ca61eb73 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fb1cc90e6a5 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fb1cc8b563b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fb1cc8bd3a6 in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fb1cefdcec0 in kdemain (argc=1, argv=0x7fff6d803168) at
/home/isma/kde/src/dolphin/src/main.cpp:188
#25 0x00005631151bf193 in main (argc=1, argv=0x7fff6d803168) at
/home/isma/kde/build/dolphin/src/dolphin_dummy.cpp:3
[Inferior 1 (process 28827) detached]

Possible duplicates by query: bug 401024, bug 398191, bug 395128, bug 351850,
bug 335214.

Reported using DrKonqi

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