https://bugs.kde.org/show_bug.cgi?id=469411
Bug ID: 469411
Summary: kioslave5 crashes regularly when accessing an FTP
server
Classification: Frameworks and Libraries
Product: frameworks-kio
Version: 5.105.0
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: FTP
Assignee: kio-bugs-n...@kde.org
Reporter: bizy...@zoho.com
CC: kdelibs-b...@kde.org
Target Milestone: ---
SUMMARY
When I use an Android file manager (https://github.com/zhanghai/MaterialFiles)
to expose the device's file system via FTP, Dolphin can connect to it, but then
kioslave5 crashes regularly as I browse through the files.
DrKonqi does catch the crash, but has no "address" associated for kioslave5, so
I copied the stack trace manually:
Application: kioslave5 (kioslave5), signal: Segmentation fault
[KCrash Handler]
#4 0x00007fef2661c34f in QScopedPointer<QObjectData,
QScopedPointerDeleter<QObjectData> >::operator-> (this=0x8) at
../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:118
#5 qGetPtrHelper<QScopedPointer<QObjectData,
QScopedPointerDeleter<QObjectData> > > (ptr=...) at
../../include/QtCore/../../src/corelib/global/qglobal.h:1149
#6 QIODevice::d_func (this=0x0) at
../../include/QtCore/../../src/corelib/io/qiodevice.h:181
#7 QIODevice::write (this=0x0, data=0x559becf2b278 "cwd /AppManager\r\n",
maxSize=17) at io/qiodevice.cpp:1653
#8 0x00007fef23bfa4ab in QIODevice::write (data=..., this=<optimized out>) at
/usr/include/qt5/QtCore/qiodevice.h:137
#9 FtpInternal::ftpSendCmd (this=0x559becea5100, cmd=..., maxretries=1) at
/usr/src/debug/kio-5.105.0/src/kioworkers/ftp/ftp.cpp:743
#10 0x00007fef23c06360 in FtpInternal::ftpFolder(QString const&) [clone
.isra.0] (this=0x559becea5100, path=...) at
/usr/src/debug/kio-5.105.0/src/kioworkers/ftp/ftp.cpp:2217
#11 0x00007fef23c01030 in FtpInternal::stat (this=0x559becea5100, url=...) at
/usr/src/debug/kio-5.105.0/src/kioworkers/ftp/ftp.cpp:1395
#12 0x00007fef23c01901 in Ftp::stat (this=<optimized out>, url=...) at
/usr/include/c++/13/bits/unique_ptr.h:200
#13 0x00007fef26acfa30 in KIO::WorkerSlaveBaseBridge::stat
(this=0x559becea96c0, url=...) at
/usr/src/debug/kio-5.105.0/src/core/workerbase_p.h:111
#14 0x00007fef26acbca5 in KIO::SlaveBase::dispatch (this=0x559becea96c0,
command=69, data=...) at /usr/src/debug/kio-5.105.0/src/core/slavebase.cpp:1297
#15 0x00007fef26ac454e in KIO::SlaveBase::dispatchLoop (this=0x559becea96c0) at
/usr/src/debug/kio-5.105.0/src/core/slavebase.cpp:342
#16 0x00007fef23c03f42 in kdemain (argc=<optimized out>, argv=<optimized out>)
at /usr/src/debug/kio-5.105.0/src/kioworkers/ftp/ftp.cpp:176
#17 0x0000559becc3c355 in main (argc=5, argv=0x7ffd33015118) at
/usr/src/debug/kio-5.105.0/src/kioslave/kioslave.cpp:145
[Inferior 1 (process 25359) detached]
STEPS TO REPRODUCE
1. Install Material Files (FOSS), enable its "FTP server" feature (anonymous rw
access)
2. Enter the URL in Dolphin's address bar
3. Browse the file tree
OBSERVED RESULT
Regular DrKonqi notifications
EXPECTED RESULT
No crashes
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20230501
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
Kernel Version: 6.2.12-1-default (64-bit)
Graphics Platform: Wayland
ADDITIONAL INFORMATION
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