Bug 2354336

Summary: [abrt] vlc-cli: lll_mutex_lock_optimized(): vlc killed by SIGSEGV
Product: [Fedora] Fedora Reporter: Simone M <martelossi.simone>
Component: vlcAssignee: Yaakov Selkowitz <yselkowi>
Status: CLOSED ERRATA QA Contact:
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 42CC: martelossi.simone, multimedia-sig, yselkowi
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/f9e15a8b3cfa8cd460f91468cdf59f97dd11e9c
Whiteboard: abrt_hash:d0b5a2c0db6cb3179bba4cb890339a21721623e3;VARIANT_ID=kde;
Fixed In Version: vlc-3.0.22-1.fc43 vlc-3.0.22-1.el10_2 vlc-3.0.22-1.fc42 vlc-3.0.22-2.el9 vlc-3.0.22-1.el10_1 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2025-12-04 00:52:37 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: proc_pid_status
none
File: maps
none
File: limits
none
File: environ
none
File: open_fds
none
File: mountinfo
none
File: os_info
none
File: cpuinfo
none
File: core_backtrace
none
File: exploitable
none
File: dso_list
none
File: var_log_messages
none
File: backtrace none

Description Simone M 2025-03-23 15:21:13 UTC 
Description of problem:
Trying to adjust volume on an open video (H.264). VLC would crash as soon as I clicked the volume bar

Version-Release number of selected component:
vlc-cli-1:3.0.21-19.fc42

Additional info:
reporter:       libreport-2.17.15
type:           CCpp
reason:         vlc killed by SIGSEGV
journald_cursor: s=85d7d4edc4194ffb8e2b91bc71cda67e;i=196f;b=e37aaae6dd12449d9033139c2f7f4055;m=2423ae9e;t=63103a0f785f5;x=3e5f93b8cb59cd4c
executable:     /usr/bin/vlc
cmdline:        /usr/bin/vlc --started-from-file
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-vlc
rootdir:        /
uid:            1000
kernel:         6.14.0-0.rc3.29.fc42.x86_64
package:        vlc-cli-1:3.0.21-19.fc42
runlevel:       N 5
backtrace_rating: 4
crash_function: lll_mutex_lock_optimized
comment:        Trying to adjust volume on an open video (H.264). VLC would crash as soon as I clicked the volume bar

Truncated backtrace:
Thread no. 1 (50 frames)
 #0 lll_mutex_lock_optimized at pthread_mutex_lock.c:48
 #1 ___pthread_mutex_lock at pthread_mutex_lock.c:93
 #2 do_lock at ../src/pipewire/thread-loop.c:52
 #3 pw_thread_loop_lock at ../src/pipewire/thread-loop.c:370
 #4 vlc_pw_lock at modules/audio_output/vlc_pipewire.c:76
 #5 vlc_pw_stream_set_mute at modules/audio_output/pipewire.c:403
 #6 MuteSet at modules/audio_output/pipewire.c:672
 #7 aout_OutputMuteSet at audio_output/output.c:665
 #8 aout_OutputUnlock at audio_output/output.c:710
 #9 aout_MuteSet at audio_output/output.c:801
 #10 playlist_MuteSet at playlist/aout.c:110
 #11 SoundWidget::setMuted at gui/qt/components/controller_widget.cpp:201
 #12 SoundWidget::userUpdateVolume at gui/qt/components/controller_widget.cpp:155
 #13 SoundWidget::qt_static_metacall at gui/qt/components/controller_widget.moc.cpp:476
 #14 doActivate<false> at kernel/qobject.cpp:3937
 #15 QMetaObject::activate at kernel/qobject.cpp:3985
 #16 SoundWidget::valueReallyChanged at gui/qt/components/controller_widget.moc.cpp:540
 #17 SoundWidget::valueChangedFilter at gui/qt/components/controller_widget.cpp:176
 #18 SoundWidget::qt_static_metacall at gui/qt/components/controller_widget.moc.cpp:481
 #19 doActivate<false> at kernel/qobject.cpp:3937
 #20 QMetaObject::activate at kernel/qobject.cpp:3985
 #21 QAbstractSlider::valueChanged at .moc/moc_qabstractslider.cpp:309
 #22 QAbstractSlider::setValue at widgets/qabstractslider.cpp:548
 #23 SoundSlider::changeValue at gui/qt/util/input_slider.cpp:748
 #24 SoundSlider::mousePressEvent at gui/qt/util/input_slider.cpp:692
 #26 QWidget::event at kernel/qwidget.cpp:9045
 #27 QApplicationPrivate::notify_helper at kernel/qapplication.cpp:3640
 #28 QApplication::notify at kernel/qapplication.cpp:3084
 #29 QCoreApplication::notifyInternal2 at kernel/qcoreapplication.cpp:1064
 #30 QCoreApplication::sendSpontaneousEvent at kernel/qcoreapplication.cpp:1474
 #31 QApplicationPrivate::sendMouseEvent at kernel/qapplication.cpp:2622
 #32 QWidgetWindow::handleMouseEvent at kernel/qwidgetwindow.cpp:684
 #33 QWidgetWindow::event at kernel/qwidgetwindow.cpp:300
 #34 QApplicationPrivate::notify_helper at kernel/qapplication.cpp:3640
 #35 QCoreApplication::notifyInternal2 at kernel/qcoreapplication.cpp:1064
 #36 QCoreApplication::sendSpontaneousEvent at kernel/qcoreapplication.cpp:1474
 #37 QGuiApplicationPrivate::processMouseEvent at kernel/qguiapplication.cpp:2278
 #38 QWindowSystemInterface::sendWindowSystemEvents at kernel/qwindowsysteminterface.cpp:1169
 #39 xcbSourceDispatch at qxcbeventdispatcher.cpp:105
 #41 g_main_context_dispatch_unlocked at ../glib/gmain.c:4212
 #42 g_main_context_iterate_unlocked at ../glib/gmain.c:4277
 #43 g_main_context_iteration at ../glib/gmain.c:4342
 #44 QEventDispatcherGlib::processEvents at kernel/qeventdispatcher_glib.cpp:423
 #45 QEventLoop::exec at ../../include/QtCore/../../src/corelib/global/qflags.h:69
 #46 QCoreApplication::exec at kernel/qcoreapplication.cpp:1375
 #47 QGuiApplication::exec at kernel/qguiapplication.cpp:1863
 #48 QApplication::exec at kernel/qapplication.cpp:2832
 #49 ThreadPlatform at gui/qt/qt.cpp:644
 #50 ThreadXCB at gui/qt/qt.cpp:369
 #52 __clone3 at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
Comment 1 Simone M 2025-03-23 15:21:17 UTC 
Created attachment 2081489 [details]
File: proc_pid_status
Comment 2 Simone M 2025-03-23 15:21:19 UTC 
Created attachment 2081490 [details]
File: maps
Comment 3 Simone M 2025-03-23 15:21:20 UTC 
Created attachment 2081491 [details]
File: limits
Comment 4 Simone M 2025-03-23 15:21:22 UTC 
Created attachment 2081492 [details]
File: environ
Comment 5 Simone M 2025-03-23 15:21:23 UTC 
Created attachment 2081493 [details]
File: open_fds
Comment 6 Simone M 2025-03-23 15:21:25 UTC 
Created attachment 2081494 [details]
File: mountinfo
Comment 7 Simone M 2025-03-23 15:21:26 UTC 
Created attachment 2081495 [details]
File: os_info
Comment 8 Simone M 2025-03-23 15:21:27 UTC 
Created attachment 2081496 [details]
File: cpuinfo
Comment 9 Simone M 2025-03-23 15:21:29 UTC 
Created attachment 2081497 [details]
File: core_backtrace
Comment 10 Simone M 2025-03-23 15:21:31 UTC 
Created attachment 2081498 [details]
File: exploitable
Comment 11 Simone M 2025-03-23 15:21:33 UTC 
Created attachment 2081499 [details]
File: dso_list
Comment 12 Simone M 2025-03-23 15:21:34 UTC 
Created attachment 2081500 [details]
File: var_log_messages
Comment 13 Simone M 2025-03-23 15:21:36 UTC 
Created attachment 2081501 [details]
File: backtrace
Comment 14 Simone M 2025-03-23 15:23:33 UTC 
Trying to adjust volume on an H.264 video in VLC (2nd attempt).
VLC would crash as soon as I clicked on the volume bar


reporter:       libreport-2.17.15
type:           CCpp
reason:         vlc killed by SIGSEGV
journald_cursor: s=85d7d4edc4194ffb8e2b91bc71cda67e;i=199c;b=e37aaae6dd12449d9033139c2f7f4055;m=24ddc703;t=63103a1b19e5a;x=d7fcc6fd48030566
executable:     /usr/bin/vlc
cmdline:        /usr/bin/vlc --started-from-file
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-vlc
rootdir:        /
uid:            1000
kernel:         6.14.0-0.rc3.29.fc42.x86_64
package:        vlc-cli-1:3.0.21-19.fc42
runlevel:       N 5
backtrace_rating: 4
crash_function: lll_mutex_lock_optimized
Comment 15 John Roszak 2025-05-16 19:41:54 UTC 
Freshly installed instance of both Fedora and VLC. VLC launched after installation, but the in-app volume was set to zero. When I went to adjust using my cursor, the app crashed.


reporter:       libreport-2.17.15
type:           CCpp
reason:         vlc killed by SIGSEGV
journald_cursor: s=82f7dcec4bba40afb5c5cd7c65d3a2cd;i=48a6;b=49c65e238e39488c9930a1465709a212;m=4f00b023;t=63545bff727f5;x=8b9f834b572e2975
executable:     /usr/bin/vlc
cmdline:        /usr/bin/vlc --started-from-file
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-vlc
rootdir:        /
uid:            1000
kernel:         6.14.6-300.fc42.x86_64
package:        vlc-cli-1:3.0.21-19.fc42
runlevel:       N 5
backtrace_rating: 4
crash_function: lll_mutex_lock_optimized
comment:        Freshly installed instance of both Fedora and VLC. VLC launched after installation, but the in-app volume was set to zero. When I went to adjust using my cursor, the app crashed.
Comment 16 Fedora Update System 2025-12-03 00:02:34 UTC 
FEDORA-EPEL-2025-655abebe23 (vlc-3.0.22-1.el10_2) has been submitted as an update to Fedora EPEL 10.2.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-655abebe23
Comment 17 Fedora Update System 2025-12-03 01:46:49 UTC 
FEDORA-EPEL-2025-655abebe23 has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-655abebe23

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 18 Fedora Update System 2025-12-03 01:49:20 UTC 
FEDORA-2025-1308f1da70 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2025-1308f1da70`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-1308f1da70

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 19 Fedora Update System 2025-12-03 01:59:31 UTC 
FEDORA-EPEL-2025-b316fdb437 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-b316fdb437

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 20 Fedora Update System 2025-12-03 02:08:45 UTC 
FEDORA-EPEL-2025-e2f46a3b61 has been pushed to the Fedora EPEL 10.1 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-e2f46a3b61

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 21 Fedora Update System 2025-12-03 02:12:14 UTC 
FEDORA-2025-48d16adf37 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2025-48d16adf37`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-48d16adf37

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 22 Fedora Update System 2025-12-04 00:52:37 UTC 
FEDORA-2025-1308f1da70 (vlc-3.0.22-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 23 Fedora Update System 2025-12-05 02:33:21 UTC 
FEDORA-EPEL-2025-655abebe23 (vlc-3.0.22-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 24 Fedora Update System 2025-12-05 02:42:25 UTC 
FEDORA-2025-48d16adf37 (vlc-3.0.22-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 25 Fedora Update System 2025-12-11 00:26:27 UTC 
FEDORA-EPEL-2025-b316fdb437 (vlc-3.0.22-2.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 26 Fedora Update System 2025-12-11 00:36:35 UTC 
FEDORA-EPEL-2025-e2f46a3b61 (vlc-3.0.22-1.el10_1) has been pushed to the Fedora EPEL 10.1 stable repository.
If problem still persists, please make note of it in this bug report.