1255831 – [abrt] Crash under html_text_get_link_at_offset()

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Bug 1255831 - [abrt] Crash under html_text_get_link_at_offset()

Summary: [abrt] Crash under html_text_get_link_at_offset()

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	gtkhtml3
Sub Component:
Version:	7.2
Hardware:	x86_64
OS:	Unspecified
Priority:	low
Severity:	medium
Target Milestone:	rc
Target Release:	---
Assignee:	Matthew Barnes
QA Contact:	Desktop QE
Docs Contact:
URL:
Whiteboard:	abrt_hash:1ffe0bd8228dda9929b1f5901d7...
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2015-08-21 16:23 UTC by Jiri Koten
Modified:	2015-11-19 07:59 UTC (History)
CC List:	3 users (show)
Fixed In Version:	gtkhtml3-4.8.5-2.el7
Doc Type:	Bug Fix
Doc Text:	Cause: crash could happen when a link insert was initiated in the HTML message format Consequence: inserting an image and right after that a link could cause a crash due to no object type checking and casting an object into a type it was not, thus accessing object structure members with incorrect values. Fix: proper type checking had been added Result: application doesn't crash when a link is inserted right after inserting an image
Clone Of:
Environment:
Last Closed:	2015-11-19 07:59:54 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)
File: backtrace (49.47 KB, text/plain) 2015-08-21 16:28 UTC, Jiri Koten	no flags	Details
patch to fix the crash (2.48 KB, patch) 2015-08-26 11:40 UTC, Milan Crha	no flags	Details \| Diff
View All

Links
System	ID	Private	Priority	Status	Summary	Last Updated
GNOME Bugzilla	701247	0	None	None	None	Never
Red Hat Product Errata	RHBA-2015:2226	0	normal	SHIPPED_LIVE	evolution bug fix and enhancement update	2015-11-19 08:37:43 UTC

Description Jiri Koten 2015-08-21 16:23:09 UTC

Version-Release number of selected component:
gtkhtml3-4.8.5-1.el7

Additional info:
reporter:       libreport-2.1.11

Comment 1 Jiri Koten 2015-08-21 16:27:58 UTC

Reproducer:

1) run gtkhtml-editor-test
2) Click Insert Image
3) Click Insert Link

Comment 2 Jiri Koten 2015-08-21 16:28:19 UTC

Created attachment 1065638 [details]
File: backtrace

Comment 3 Milan Crha 2015-08-26 11:40:44 UTC

Created attachment 1067229 [details]
patch to fix the crash

Comment 4 Milan Crha 2015-08-26 11:44:52 UTC

The problem was that there was no type-checking, thus even the cursor was at an image object the code cast the structure to a text object, thus it was reading data which was not there. I added type-checking and fixed a cursor positioning, thus the changes in the URL description don't delete the image object.

Comment 7 errata-xmlrpc 2015-11-19 07:59:54 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2226.html

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