https://bugs.kde.org/show_bug.cgi?id=482819
Bug ID: 482819
Summary: kwalletd6 sometimes crashed in
QCA::PrivateKey::deriveKey when starting Proton VPN
GUI
Classification: Frameworks and Libraries
Product: frameworks-kwallet
Version: 6.0.0
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: va...@kde.org
Reporter: matt.fagn...@bell.net
CC: kdelibs-b...@kde.org
Target Milestone: ---
SUMMARY
kwalletd6 sometimes crashed in QCA::PrivateKey::deriveKey when starting Proton
VPN GUI. Crashes with the same trace happened three times when starting Proton
VPN each of which was the first time I ran it in a Plasma 6.0.1 session in a
Fedora 40 KDE Plasma installation.
Core was generated by `/usr/bin/kwalletd6 --pam-login 13 14'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f0fa37491dc in QCA::PrivateKey::deriveKey
(this=this@entry=0x7ffe71c73640, theirs=...)
at /usr/src/debug/qca-2.3.8-1.fc40.x86_64/src/qca_publickey.cpp:1030
1030 return static_cast<PKeyContext
*>(context())->key()->deriveKey(*(theirContext->key()));
[Current thread is 1 (Thread 0x7f0fa37c79c0 (LWP 9448))]
(gdb) bt
#0 0x00007f0fa37491dc in QCA::PrivateKey::deriveKey
(this=this@entry=0x7ffe71c73640, theirs=...)
at /usr/src/debug/qca-2.3.8-1.fc40.x86_64/src/qca_publickey.cpp:1030
#1 0x000055f537f92992 in
KWalletFreedesktopService::createSessionAlgorithmDhAes (this=0x7f0f8800a320,
clientKey=...)
at
/usr/src/debug/kf6-kwallet-6.0.0-1.fc40.x86_64/src/runtime/kwalletd/kwalletfreedesktopservice.cpp:424
#2 KWalletFreedesktopService::OpenSession
(this=0x7f0f8800a320, algorithm=<optimized out>, input=<optimized out>,
result=...)
at
/usr/src/debug/kf6-kwallet-6.0.0-1.fc40.x86_64/src/runtime/kwalletd/kwalletfreedesktopservice.cpp:266
#3 0x000055f537fb7f43 in KWalletFreedesktopServiceAdaptor::OpenSession
(this=0x55f539ee3fe0, algorithm=<optimized out>, input=<optimized out>,
result=<optimized out>)
at
/usr/src/debug/kf6-kwallet-6.0.0-1.fc40.x86_64/redhat-linux-build/src/runtime/kwalletd/kwalletfreedesktopserviceadaptor.cpp:63
#4 KWalletFreedesktopServiceAdaptor::qt_static_metacall
(_o=0x55f539ee3fe0, _c=<optimized out>, _id=<optimized out>,
_a=0x7ffe71c73978)
at
/usr/src/debug/kf6-kwallet-6.0.0-1.fc40.x86_64/redhat-linux-build/src/runtime/kwalletd/moc_kwalletfreedesktopserviceadaptor.cpp:410
#5 0x000055f537fb8254 in KWalletFreedesktopServiceAdaptor::qt_metacall
(this=0x55f539ee3fe0, _c=QMetaObject::InvokeMetaMethod, _id=6,
_a=0x7ffe71c73978)
at
/usr/src/debug/kf6-kwallet-6.0.0-1.fc40.x86_64/redhat-linux-build/src/runtime/kwalletd/moc_kwalletfreedesktopserviceadaptor.cpp:489
#6 0x00007f0fa2a7bb11 in QDBusConnectionPrivate::deliverCall
(this=this@entry=0x7f0f88001690, object=object@entry=0x55f539ee3fe0,
msg=..., metaTypes=..., slotIdx=11)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/dbus/qdbusintegrator.cpp:977
#7 0x00007f0fa2a7f675 in QDBusConnectionPrivate::activateCall
(this=this@entry=0x7f0f88001690, object=0x55f539ee3fe0,
flags=flags@entry=273, msg=...)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/dbus/qdbusintegrator.cpp:879
#8 0x00007f0fa2a802c6 in QDBusConnectionPrivate::activateCall
(this=0x7f0f88001690, object=<optimized out>, flags=273, msg=...)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/dbus/qdbusintegrator.cpp:825
--Type <RET> for more, q to quit, c to continue without paging--c
#9 QDBusConnectionPrivate::activateObject (this=0x7f0f88001690, node=...,
msg=..., pathStartPos=<optimized out>)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/dbus/qdbusintegrator.cpp:1460
#10 0x00007f0fa2a8295a in QDBusActivateObjectEvent::placeMetaCall
(this=0x7f0f8800adc0)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/dbus/qdbusintegrator.cpp:1580
#11 0x00007f0fa19e25a5 in QObject::event (this=0x7f0f8800a320,
e=0x7f0f8800adc0)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qobject.cpp:1437
#12 0x00007f0fa2d87f68 in QApplicationPrivate::notify_helper
(this=<optimized out>, receiver=0x7f0f8800a320, e=0x7f0f8800adc0)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/widgets/kernel/qapplication.cpp:3296
#13 0x00007f0fa198f218 in QCoreApplication::notifyInternal2
(receiver=0x7f0f8800a320, event=0x7f0f8800adc0)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qcoreapplication.cpp:1121
#14 0x00007f0fa198f42d in QCoreApplication::sendEvent (receiver=<optimized
out>, event=<optimized out>)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qcoreapplication.cpp:1539
#15 0x00007f0fa1993147 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x55f539b2d390)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qcoreapplication.cpp:1901
#16 0x00007f0fa199340d in QCoreApplication::sendPostedEvents
(receiver=<optimized out>, event_type=<optimized out>)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qcoreapplication.cpp:1760
#17 0x00007f0fa1c6751f in postEventSourceDispatch (s=0x55f539b2f450)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:243
#18 0x00007f0fa0ed626c in g_main_dispatch (context=0x7f0f88000f00) at
../glib/gmain.c:3344
#19 g_main_context_dispatch_unlocked (context=0x7f0f88000f00) at
../glib/gmain.c:4152
#20 0x00007f0fa0f372a8 in g_main_context_iterate_unlocked.isra.0
(context=context@entry=0x7f0f88000f00, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>)
at ../glib/gmain.c:4217
#21 0x00007f0fa0ed76e3 in g_main_context_iteration (context=0x7f0f88000f00,
may_block=1) at ../glib/gmain.c:4282
#22 0x00007f0fa1c66de3 in QEventDispatcherGlib::processEvents
(this=0x55f539b470d0, flags=...)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:393
#23 0x00007f0fa199c053 in QEventLoop::exec (this=this@entry=0x7ffe71c74250,
flags=..., flags@entry=...)
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/global/qflags.h:34
#24 0x00007f0fa1997ffc in QCoreApplication::exec ()
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/corelib/global/qflags.h:74
#25 0x00007f0fa21d37cd in QGuiApplication::exec ()
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/gui/kernel/qguiapplication.cpp:1925
#26 0x00007f0fa2d87ed9 in QApplication::exec ()
at
/usr/src/debug/qt6-qtbase-6.6.2-1.fc40.x86_64/src/widgets/kernel/qapplication.cpp:2574
#27 0x000055f537f78d95 in main (argc=<optimized out>, argv=<optimized out>)
at
/usr/src/debug/kf6-kwallet-6.0.0-1.fc40.x86_64/src/runtime/kwalletd/main.cpp:221
Proton VPN GUI crashed with the following trace after the kwalletd6 crash.
Mar 07 23:34:49 plasmashell[11327]: Traceback (most recent call last):
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/secretstorage/util.py", line 48, in
send_and_get_reply
Mar 07 23:34:49 plasmashell[11327]: raise DBusErrorResponse(resp_msg)
Mar 07 23:34:49 plasmashell[11327]: jeepney.wrappers.DBusErrorResponse:
[org.freedesktop.DBus.Error.NoReply] ('Remote peer disconnected',)
Mar 07 23:34:49 plasmashell[11327]: The above exception was the direct cause of
the following exception:
Mar 07 23:34:49 plasmashell[11327]: Traceback (most recent call last):
Mar 07 23:34:49 plasmashell[11327]: File "/usr/bin/protonvpn-app", line 33,
in <module>
Mar 07 23:34:49 plasmashell[11327]:
sys.exit(load_entry_point('proton-vpn-gtk-app==4.2.0', 'console_scripts',
'protonvpn-app')())
Mar 07 23:34:49 plasmashell[11327]:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/vpn/app/gtk/__main__.py", line 34, in
main
Mar 07 23:34:49 plasmashell[11327]: controller = Controller.get(executor)
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/vpn/app/gtk/controller.py", line 56,
in get
Mar 07 23:34:49 plasmashell[11327]:
executor.submit(controller.initialize_vpn_connector).result()
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib64/python3.12/concurrent/futures/_base.py", line 456, in result
Mar 07 23:34:49 plasmashell[11327]: return self.__get_result()
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib64/python3.12/concurrent/futures/_base.py", line 401, in __get_result
Mar 07 23:34:49 plasmashell[11327]: raise self._exception
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/vpn/app/gtk/controller.py", line 89,
in initialize_vpn_connector
Mar 07 23:34:49 plasmashell[11327]: self._connector = await
self._api.get_vpn_connector()
Mar 07 23:34:49 plasmashell[11327]:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/vpn/core/api.py", line 53, in
get_vpn_connector
Mar 07 23:34:49 plasmashell[11327]: settings = await self.load_settings()
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/vpn/core/api.py", line 63, in
load_settings
Mar 07 23:34:49 plasmashell[11327]: if
self._session_holder.session.logged_in:
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/vpn/core/session.py", line 71, in
session
Mar 07 23:34:49 plasmashell[11327]: self._session =
self._proton_sso.get_default_session(
Mar 07 23:34:49 plasmashell[11327]:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/sso/sso.py", line 192, in
get_default_session
Mar 07 23:34:49 plasmashell[11327]: sessions = self.sessions
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/sso/sso.py", line 133, in sessions
Mar 07 23:34:49 plasmashell[11327]: keyring_index =
keyring[self.__keyring_index_name()]
Mar 07 23:34:49 plasmashell[11327]:
~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/keyring/_base.py", line 65, in
__getitem__
Mar 07 23:34:49 plasmashell[11327]: return self._get_item(key)
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/proton/keyring_linux/core/keyring_linux.py",
line 45, in _get_item
Mar 07 23:34:49 plasmashell[11327]: stored_data =
self.__keyring_backend.get_password(
Mar 07 23:34:49 plasmashell[11327]:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/keyring/backends/SecretService.py", line 83,
in get_password
Mar 07 23:34:49 plasmashell[11327]: return
item.get_secret().decode('utf-8')
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/secretstorage/item.py", line 99, in
get_secret
Mar 07 23:34:49 plasmashell[11327]: self.session =
open_session(self.connection)
Mar 07 23:34:49 plasmashell[11327]:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/secretstorage/util.py", line 80, in
open_session
Mar 07 23:34:49 plasmashell[11327]: output, result = service.call(
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/secretstorage/util.py", line 63, in call
Mar 07 23:34:49 plasmashell[11327]: return self.send_and_get_reply(msg)
Mar 07 23:34:49 plasmashell[11327]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Mar 07 23:34:49 plasmashell[11327]: File
"/usr/lib/python3.12/site-packages/secretstorage/util.py", line 58, in
send_and_get_reply
Mar 07 23:34:49 plasmashell[11327]: raise
SecretServiceNotAvailableException(data) from resp
Mar 07 23:34:49 plasmashell[11327]:
secretstorage.exceptions.SecretServiceNotAvailableException: Remote peer
disconnected
Mar 07 23:34:49 systemd[9403]:
app-protonvpn\x2dapp-9a55dbb58d2c40afa44b5f9a76aabf4b.scope: Consumed 1.028s
CPU time.
This problem started after an update including Plasma 6.0.1 and
qca-2.3.8-1.fc40 https://bodhi.fedoraproject.org/updates/FEDORA-2024-71a4de4732
Since the crashing function QCA::PrivateKey::deriveKey is in qca, that update
might be involved.
When I ran Proton VPN right after the crash in the same session, I got a
message that kwallet hadn't been opened and asking to enter the password.
kwalletd6 and Proton VPN didn't crash after entering the password or when I ran
Proton VPN again in the same Plasma session.
STEPS TO REPRODUCE
1. Boot a Fedora 40 KDE Plasma installation updated to 2024-3-8 with the
updates-testing repo enabled
2. Log in to Plasma 6.0.1 on Wayland from sddm
3. Set up the Proton VPN repo and install the program using the instructions at
https://protonvpn.com/support/official-linux-vpn-fedora/ Since Proton VPN
doesn't build Fedora 40 packages yet as it's in a pre-release stage, I changed
two lines in /etc/yum.repos.d/protonvpn-stable.repo to use the Fedora 39 repo
before installing it.
baseurl = https://repo.protonvpn.com/fedora-39-stable
gpgkey = https://repo.protonvpn.com/fedora-39-stable/public_key.asc
5. Make a Proton VPN account at https://protonvpn.com/ There's a free plan
available.
6. Start the Proton VPN GUI
7. Enter the Proton VPN user name and password that was previously made. The
Proton VPN account information should be stored in kwallet.
8. Log out of Plasma
9. Log in to Plasma
10. Start the Proton VPN GUI
OBSERVED RESULT
kwalletd6 sometimes crashed in QCA::PrivateKey::deriveKey when starting Proton
VPN GUI
EXPECTED RESULT
No crashes should've happened.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 40
(available in About System)
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
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