Bug 188097 – Glslideshow crashes xscreensaver-demo

Bug 188097 - Glslideshow crashes xscreensaver-demo

Summary:	Glslideshow crashes xscreensaver-demo

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	xscreensaver (Show other bugs)
Sub Component:
Version:	4
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Ray Strode [halfline]
QA Contact:
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2006-04-05 20:29 EDT by Scott R. Godin
Modified:	2007-11-30 17:11 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:	xscreensaver-base-4.24-4.fc5
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2007-01-22 16:59:13 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
backtrace and two core files (1.15 MB, application/x-gzip) 2006-04-05 20:29 EDT, Scott R. Godin	no flags	Details
Patch to prevent double free in demo-Gtk.c (380 bytes, patch) 2006-05-11 07:54 EDT, Mamoru TASAKA	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Scott R. Godin 2006-04-05 20:29:43 EDT

Description of problem:
Glslideshow crashes xscreensaver-demo if 'preview' is done more than 2-3 times

Version-Release number of selected component (if applicable):
4.21-4

How reproducible:
every time


Steps to Reproduce:
1. run xscreensaver-demo and select GLSlideshow from the list
2. wait for the preview in the mini-window to appear, and press the Preview 
button. 
3. click on the screen to cancel the preview. lather, rinse, repeat, 2-3 times, 
and xscreensaver-demo will dump core
  
Actual results:
core dump

Expected results:
continued preview of random images

Additional info:

I have two core files, and a gdb backtrace of one of them I will attach

Comment 1 Scott R. Godin 2006-04-05 20:29:44 EDT

Created attachment 127382 [details]
backtrace and two core files

Comment 2 Mamoru TASAKA 2006-05-11 07:54:11 EDT

Created attachment 128879 [details]
Patch to prevent double free in demo-Gtk.c

I don't have FC4 system any more and so I cannot make use of core file.
But by checking xscreensaver-backtrace.txt in the attachment in the
comment 1, it is found that this is a problem of double-free in run_hack()
in demo-Gtk.c

A patch is attached to fix this problem.
Note: this problem is already fixed in version 4.24.

Comment 3 Christian Iseli 2007-01-22 06:59:25 EST

This report targets the FC3 or FC4 products, which have now been EOL'd.

Could you please check that it still applies to a current Fedora release, and
either update the target product or close it ?

Thanks.

Comment 4 Scott R. Godin 2007-01-22 16:59:13 EST

fixed as of FC5. sorry I didn't get back to this to test it. thanks for the 
reminder. 

even if I point it at ~/Pictures now, which has some huge files in it, there 
are no coredumps.

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