Bug 1035423

Summary:	Use after free causes critical warnings in g-s-d, potential crasher
Product:	[Fedora] Fedora	Reporter:	Rui Matos <rmatos>
Component:	glib2	Assignee:	Matthias Clasen <mclasen>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	20	CC:	awilliam, mclasen
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	AcceptedFreezeException
Fixed In Version:	glib2-2.38.2-2.fc20	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-12-04 16:51:21 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:
Bug Depends On:
Bug Blocks:	980657

Description Rui Matos 2013-11-27 17:30:29 UTC

The fix for bug 1008965, uncovered a bug in glib: https://bugzilla.gnome.org/show_bug.cgi?id=719402 .

This is currently just issuing a critical warning:

(gnome-settings-daemon:13060): GLib-GObject-CRITICAL **: g_signal_emit_valist: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

but it's potentially a crasher.

Comment 1 Adam Williamson 2013-11-27 17:34:04 UTC

We can consider taking this into F20 final - do you think it's likely to be less dangerous to try taking the patch through freeze, or leave it alone and hope it doesn't crash anything?

Comment 2 Rui Matos 2013-11-27 17:59:57 UTC

I think the fix is safe enough to go into final.

OTOH, nothing else seems to be hitting this issue and AFAICT, this bug has existed in glib for 2 years now.

Comment 3 Fedora Update System 2013-11-27 18:08:04 UTC

glib2-2.38.2-2.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/glib2-2.38.2-2.fc20

Comment 4 Adam Williamson 2013-11-27 19:57:44 UTC

Discussed at 2013-11-27 freeze exception review meeting: http://meetbot.fedoraproject.org/fedora-blocker-review/2013-11-27/f20-blocker-review-3.2013-11-27-17.01.log.txt . Accepted as a freeze exception issue because, uh, I don't really know, but people voted +1.

Comment 5 Fedora Update System 2013-11-29 15:57:58 UTC

Package glib2-2.38.2-2.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing glib2-2.38.2-2.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-22340/glib2-2.38.2-2.fc20
then log in and leave karma (feedback).

Comment 6 Fedora Update System 2013-12-04 16:51:21 UTC

glib2-2.38.2-2.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.