Bug 2416635

Summary: [abrt] xorg-x11-server-Xorg: vncHooksMoveCursor(): Xorg killed by SIGSEGV
Product: [Fedora] Fedora Reporter: Joao Carlos Mendes Luis <jonny>
Component: tigervncAssignee: Jan Grulich <jgrulich>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 42CC: ajax, jexposit, jgrulich, jonny, ofourdan, rstrode, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/5a799dbf86d05318bd660aebb9fd68be5760f3a
Whiteboard: abrt_hash:1a75b9345ce590c21c634fb21fe4fa949ca12de0;VARIANT_ID=xfce;
Fixed In Version: tigervnc-1.16.0-2.fc43 tigervnc-1.16.0-2.fc42 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-02-19 01:12:07 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: open_fds
none
File: os_info
none
File: mountinfo
none
File: environ
none
File: backtrace
none
File: limits
none
File: cpuinfo
none
File: exploitable
none
File: maps
none
File: core_backtrace
none
File: proc_pid_status none

Description Joao Carlos Mendes Luis 2025-11-23 17:13:38 UTC
Description of problem:
Again, VNC

Version-Release number of selected component:
xorg-x11-server-Xorg-21.1.18-1.fc42

Additional info:
reporter:       libreport-2.17.15
dso_list:       /usr/libexec/Xorg xorg-x11-server-Xorg-21.1.18-1.fc42.x86_64 (Fedora Project) 1751398857
crash_function: vncHooksMoveCursor
cgroup:         0::/system.slice/lightdm.service
backtrace_rating: 4
comment:        Again, VNC
package:        xorg-x11-server-Xorg-21.1.18-1.fc42
runlevel:       N 5
journald_cursor: s=a78c664d9fe34b2da2768ad43d83700c;i=2a46d06;b=e04b08e6b51e4d69a71767df078d1a32;m=7379f0d3ef;t=64445bc43a5f2;x=e27d0ce65e31f310
reason:         Xorg killed by SIGSEGV
executable:     /usr/libexec/Xorg
rootdir:        /
kernel:         6.17.7-200.fc42.x86_64
cmdline:        /usr/libexec/Xorg -core -noreset :0 -seat seat0 -auth /run/lightdm/root/:0 -listen tcp vt1 -novtswitch
uid:            0
type:           CCpp

Truncated backtrace:
Thread no. 12 (1 frames)
 #0 vncHooksMoveCursor at ../../include/privates.h:164


Potential duplicate: bug 2356978

Comment 1 Joao Carlos Mendes Luis 2025-11-23 17:13:42 UTC
Created attachment 2115901 [details]
File: open_fds

Comment 2 Joao Carlos Mendes Luis 2025-11-23 17:13:44 UTC
Created attachment 2115902 [details]
File: os_info

Comment 3 Joao Carlos Mendes Luis 2025-11-23 17:13:45 UTC
Created attachment 2115903 [details]
File: mountinfo

Comment 4 Joao Carlos Mendes Luis 2025-11-23 17:13:46 UTC
Created attachment 2115904 [details]
File: environ

Comment 5 Joao Carlos Mendes Luis 2025-11-23 17:13:48 UTC
Created attachment 2115905 [details]
File: backtrace

Comment 6 Joao Carlos Mendes Luis 2025-11-23 17:13:49 UTC
Created attachment 2115906 [details]
File: limits

Comment 7 Joao Carlos Mendes Luis 2025-11-23 17:13:50 UTC
Created attachment 2115907 [details]
File: cpuinfo

Comment 8 Joao Carlos Mendes Luis 2025-11-23 17:13:51 UTC
Created attachment 2115908 [details]
File: exploitable

Comment 9 Joao Carlos Mendes Luis 2025-11-23 17:13:53 UTC
Created attachment 2115909 [details]
File: maps

Comment 10 Joao Carlos Mendes Luis 2025-11-23 17:13:54 UTC
Created attachment 2115910 [details]
File: core_backtrace

Comment 11 Joao Carlos Mendes Luis 2025-11-23 17:13:55 UTC
Created attachment 2115911 [details]
File: proc_pid_status

Comment 12 Joao Carlos Mendes Luis 2025-11-23 17:14:40 UTC
Again, TIgerVNC


reporter:       libreport-2.17.15
dso_list:       /usr/libexec/Xorg xorg-x11-server-Xorg-21.1.18-1.fc42.x86_64 (Fedora Project) 1751398857
crash_function: vncHooksMoveCursor
cgroup:         0::/system.slice/lightdm.service
backtrace_rating: 4
comment:        Again, TIgerVNC
package:        xorg-x11-server-Xorg-21.1.18-1.fc42
runlevel:       N 5
journald_cursor: s=a78c664d9fe34b2da2768ad43d83700c;i=2a46d06;b=e04b08e6b51e4d69a71767df078d1a32;m=7379f0d3ef;t=64445bc43a5f2;x=e27d0ce65e31f310
reason:         Xorg killed by SIGSEGV
executable:     /usr/libexec/Xorg
rootdir:        /
kernel:         6.17.7-200.fc42.x86_64
cmdline:        /usr/libexec/Xorg -core -noreset :0 -seat seat0 -auth /run/lightdm/root/:0 -listen tcp vt1 -novtswitch
uid:            0
type:           CCpp

Comment 13 Jan Grulich 2025-11-24 07:35:13 UTC
This look like https://github.com/TigerVNC/tigervnc/issues/1982 that doesn't have a fix yet.

Comment 14 Jan Grulich 2025-11-24 07:36:05 UTC
*** Bug 2403215 has been marked as a duplicate of this bug. ***

Comment 15 Jan Grulich 2025-11-24 07:36:09 UTC
*** Bug 2399956 has been marked as a duplicate of this bug. ***

Comment 16 Jan Grulich 2025-11-24 07:36:26 UTC
*** Bug 2397697 has been marked as a duplicate of this bug. ***

Comment 17 Jan Grulich 2025-11-24 07:36:31 UTC
*** Bug 2397215 has been marked as a duplicate of this bug. ***

Comment 18 Jan Grulich 2025-11-24 07:36:38 UTC
*** Bug 2397099 has been marked as a duplicate of this bug. ***

Comment 19 Fedora Update System 2026-02-10 07:45:24 UTC
FEDORA-2026-ecd6497813 (tigervnc-1.16.0-2.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-ecd6497813

Comment 20 Fedora Update System 2026-02-10 07:45:34 UTC
FEDORA-2026-1ba9a9facd (tigervnc-1.16.0-2.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1ba9a9facd

Comment 21 Fedora Update System 2026-02-11 01:10:52 UTC
FEDORA-2026-1ba9a9facd 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-2026-1ba9a9facd`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1ba9a9facd

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 22 Fedora Update System 2026-02-11 05:37:36 UTC
FEDORA-2026-ecd6497813 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-2026-ecd6497813`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-ecd6497813

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 23 Joao Carlos Mendes Luis 2026-02-11 15:53:38 UTC
I installed the updates yesterday (directly from bodhi) and today it has crashed.  Bug number #1177892

Comment 24 Joao Carlos Mendes Luis 2026-02-11 15:57:14 UTC
# rpm -qa | grep tiger
tigervnc-debuginfo-1.16.0-2.fc43.x86_64
tigervnc-wayland-server-debuginfo-1.16.0-2.fc43.x86_64
tigervnc-x11-server-debuginfo-1.16.0-2.fc43.x86_64
tigervnc-x11-server-module-debuginfo-1.16.0-2.fc43.x86_64
tigervnc-license-1.16.0-2.fc43.noarch
tigervnc-server-common-1.16.0-2.fc43.x86_64
tigervnc-selinux-1.16.0-2.fc43.noarch
tigervnc-icons-1.16.0-2.fc43.noarch
tigervnc-1.16.0-2.fc43.x86_64
tigervnc-x11-server-1.16.0-2.fc43.x86_64
tigervnc-wayland-server-1.16.0-2.fc43.x86_64
tigervnc-x11-server-module-1.16.0-2.fc43.x86_64

Comment 25 Fedora Update System 2026-02-19 01:12:07 UTC
FEDORA-2026-1ba9a9facd (tigervnc-1.16.0-2.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 26 Fedora Update System 2026-02-19 01:32:25 UTC
FEDORA-2026-ecd6497813 (tigervnc-1.16.0-2.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.