Bug 2023908

Summary:	pango_item_split: assertion 'split_offset > 0' failed (crashing nm-applet)
Product:	[Fedora] Fedora	Reporter:	Bernard Cafarelli <bcafarel>
Component:	pango	Assignee:	Peng Wu <pwu>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	35	CC:	caillon+fedoraproject, fonts-bugs, gnome-sig, i18n-bugs, mclasen, mediaklan, pwu, rhughes, rstrode, sandmann, tagoh
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	pango-1.49.3-2.fc35	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-22 01:20:33 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Bernard Cafarelli 2021-11-16 18:47:43 UTC

Description of problem:
After upgrading to Fedora 35, nm-applet (from network-manager-applet-1.24.0-1.fc35.x86_64) segfaults on a pango assert:
(nm-applet:8121): Pango-CRITICAL **: 19:26:36.541: pango_item_split: assertion 'split_offset > 0' failed


Version-Release number of selected component (if applicable):
pango-1.49.3-1.fc35.x86_64


How reproducible:
100%

Steps to Reproduce:
1. Left-click on nm-applet to get list of possible connections

Actual results:
Immediate crash

Expected results:
List of connections (note that some sections show small cap letters)

Additional info:
The linked gnome gitlab issue mentions this is generic for strings in string in a GtkLabel (with small caps)
 
Rebuilding pango 1.49.3 with patch from https://gitlab.gnome.org/GNOME/pango/-/merge_requests/505 fixes the issue

Comment 1 Jens Petersen 2021-11-18 03:48:45 UTC

Which desktop are you using?

Comment 2 Peng Wu 2021-11-18 05:34:39 UTC

Sorry, I can't reproduce this issue yet.


This is the pango package scratch build with the patch.

URL: https://koji.fedoraproject.org/koji/taskinfo?taskID=79008333

If the above package works for you, I will include the patch in Fedora soon.

Comment 3 mediaklan 2021-11-18 21:34:20 UTC

I can confirm this issue since my recent upgrade to F35, using xfce.
- A left click (for example, disconnecting a vpn) will crash the applet.
Here's the segfault :
[70195.350282] nm-applet[10865]: segfault at 38 ip 00007f9f4cd91be8 sp 00007ffd4ab8c370 error 4 in libpango-1.0.so.0.4903.0[7f9f4cd86000+2c000]
And Pango-CRITICAL :
(nm-applet:167296): Pango-CRITICAL **: 22:04:08.125: pango_item_split: assertion 'split_offset > 0' failed

Comment 4 Fedora Update System 2021-11-19 03:49:02 UTC

FEDORA-2021-64b892ec84 has been submitted as an update to Fedora 35. https://bodhi.fedoraproject.org/updates/FEDORA-2021-64b892ec84

Comment 5 Bernard Cafarelli 2021-11-19 09:13:56 UTC

Thanks for the update! I can confirm that with pango-1.49.3-2.fc35 RPMs, nm-applet does not crash either on list (left click) - also with XFCE here.

Comment 6 Fedora Update System 2021-11-20 02:19:27 UTC

FEDORA-2021-64b892ec84 has been pushed to the Fedora 35 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-64b892ec84`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-64b892ec84

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

Comment 7 Fedora Update System 2021-11-22 01:20:33 UTC

FEDORA-2021-64b892ec84 has been pushed to the Fedora 35 stable repository.
If problem still persists, please make note of it in this bug report.