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
Moving to KFileMetaData, since that's what's crashing.
*** Bug 414372 has been marked as a duplicate of this bug. ***
*** Bug 414453 has been marked as a duplicate of this bug. ***
Git commit 4bb4195a6fc6841dd9ce1d3f564fc122b6032d86 by Ismael Asensio. Committed on 12/12/2019 at 20:50. Pushed by iasensio into branch 'master'. xattr: fix crash on dangling symlinks Summary: When requesting metadata on a dangling symlink, the framestack ends up calling `k_queryAttributes()` with the symlink path, where the `listxattr` syscall returns `size==-1` and `errno==ENOENT` (No such file or directory). This case was not covered before, and provoked a segfault on `QByteArray`. Full traceback on: https://bugs.kde.org/show_bug.cgi?id=414227 It might be also a good idea to always protect the function when `size==-1` Test Plan: - `bin/usermetadatawritertest` : added test - On dolphin, with panel information open, hover over a dangling symlink Reviewers: astippich, bruns Reviewed By: bruns Subscribers: bruns, kde-frameworks-devel, #baloo Tags: #frameworks, #baloo Differential Revision: https://phabricator.kde.org/D25414 M +11 -0 autotests/usermetadatawritertest.cpp M +1 -0 autotests/usermetadatawritertest.h M +6 -6 src/xattr_p.h https://commits.kde.org/kfilemetadata/4bb4195a6fc6841dd9ce1d3f564fc122b6032d86
*** Bug 415198 has been marked as a duplicate of this bug. ***
*** Bug 415275 has been marked as a duplicate of this bug. ***
*** Bug 415418 has been marked as a duplicate of this bug. ***
*** Bug 415212 has been marked as a duplicate of this bug. ***
I've just noticed that the fix was also commited to Frameworks 5.65, so it should be fixed from there on.
*** Bug 415590 has been marked as a duplicate of this bug. ***
*** Bug 415312 has been marked as a duplicate of this bug. ***