gifsicle crashed with asserion failure in optimize.c:470

[Volodymyr Kolesnykov]

Binary package hint: gifsicle

gifsicle crashedwhen processing the attached file:

gifsicle: optimize.c:470: fix_difference_bounds: Assertion `bounds->top < screen_height && bounds->left < screen_width && bounds->top + bounds->height - 1 < screen_height && bounds->left + bounds->width - 1 < screen_width' failed.

Command line was

gifsicle -O2 -b angry.gif

# lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Release: 10.04

# apt-cache policy gifsicle
gifsicle:
  Installed: 1.58-1
  Candidate: 1.58-1
  Version table:
 *** 1.58-1 0
        500 http://ua.archive.ubuntu.com/ubuntu/ lucid/universe Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gifsicle 1.58-1
ProcVersionSignature: Ubuntu 2.6.32-25.44-server 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-server x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Sun Sep 26 08:14:44 2010
ProcEnviron:
 LANGUAGE=ru_RU:ru
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: gifsicle

[Volodymyr Kolesnykov (sjinks)]

This is the file on which gifsicle crashes.

[Volodymyr Kolesnykov (sjinks)]

GDB Debug Log

[Volodymyr Kolesnykov (sjinks)]

Forgot to mention that to generate the backtrace I recompiled gifsicle with -O0 -g3

[Lenin (gagarin)]

Could you test if it also happens with 1.60 of gifsicle?

[Volodymyr Kolesnykov (sjinks)]

Yes, the error is still there

$ apt-cache policy gifsicle
gifsicle:
  Installed: 1.60-1
  Candidate: 1.60-1
  Version table:
 *** 1.60-1 0
        500 http://ua.archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages
        100 /var/lib/dpkg/status

$ gifsicle -O2 -b angry.gif
gifsicle: optimize.c:470: fix_difference_bounds: Assertion `bounds->top < screen_height && bounds->left < screen_width && bounds->top + bounds->height - 1 < screen_height && bounds->left + bounds->width - 1 < screen_width' failed.
Aborted (core dumped)

[Lenin (gagarin)]

Version 1.61 of gifsicle fixes this problem.

[François Marier (fmarier)]

Fixed in oneiric and later Ubuntu releases.