Thanks for reporting this issue. Looks like we're possibly missing a couple of commits:
https://github.com/ImageMagick/ImageMagick6/commit/e5e87c087ed48db886be0ff3aff4041d38218192 https://github.com/ImageMagick/ImageMagick6/commit/f5d04fc678f67984a1f8c1008dc8eac8ee7e3629 I'll prepare a regression fix. ** Also affects: imagemagick (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: imagemagick (Ubuntu Trusty) Importance: Undecided Status: New ** Also affects: imagemagick (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: imagemagick (Ubuntu Bionic) Status: New => Fix Released ** Changed in: imagemagick (Ubuntu) Status: New => Fix Released ** Changed in: imagemagick (Ubuntu Trusty) Status: New => In Progress ** Changed in: imagemagick (Ubuntu Xenial) Status: New => In Progress ** Changed in: imagemagick (Ubuntu Trusty) Assignee: (unassigned) => Marc Deslauriers (mdeslaur) ** Changed in: imagemagick (Ubuntu Xenial) Assignee: (unassigned) => Marc Deslauriers (mdeslaur) ** Changed in: imagemagick (Ubuntu Bionic) Assignee: (unassigned) => Marc Deslauriers (mdeslaur) ** Information type changed from Public to Public Security -- You received this bug notification because you are a member of नेपाली भाषा समायोजकहरुको समूह, which is subscribed to Xenial. Matching subscriptions: Ubuntu 16.04 Bugs https://bugs.launchpad.net/bugs/1793485 Title: segfault in png to gif conversion Status in imagemagick package in Ubuntu: Fix Released Status in imagemagick source package in Trusty: In Progress Status in imagemagick source package in Xenial: In Progress Status in imagemagick source package in Bionic: Fix Released Bug description: Regression between 8:6.8.9.9-7ubuntu5.9 and 8:6.8.9.9-7ubuntu5.12. Test case: 1. Download the attached pngs. 2. Run: /usr/bin/convert -limit memory 512MiB -limit map 0MiB -limit file 10 -delay 16 -loop 0 -coalesce -deconstruct ./*.png ./output.gif Expected result: Process finishes with resulting output.gif. Actual result: Process is aborted with SIGSEGV: Other information: In my tests looks like it has been introduced in 8:6.8.9.9-7ubuntu5.11 and does not occur on Bionic. Stack trace: #0 EncodeImage (image_info=0x645c40, data_size=<optimized out>, image=0x636890) at ../../coders/gif.c:676 #1 WriteGIFImage (image_info=0x640700, image=0x636890) at ../../coders/gif.c:1905 #2 0x00007ffff79a5f0f in WriteImage (image_info=image_info@entry=0x618680, image=image@entry=0x62cb30) at ../../magick/constitute.c:1184 #3 0x00007ffff79a684f in WriteImages (image_info=image_info@entry=0x60fcd0, images=<optimized out>, images@entry=0x62cb30, filename=<optimized out>, exception=exception@entry=0x602ea0) at ../../magick/constitute.c:1335 #4 0x00007ffff763e84e in ConvertImageCommand (image_info=0x60fcd0, argc=19, argv=0x6143b0, metadata=0x0, exception=0x602ea0) at ../../wand/convert.c:3215 #5 0x00007ffff76ab527 in MagickCommandGenesis ( image_info=image_info@entry=0x60aab0, command=0x4007f0 <ConvertImageCommand@plt>, argc=argc@entry=19, argv=argv@entry=0x7fffffffdc68, metadata=metadata@entry=0x0, exception=exception@entry=0x602ea0) at ../../wand/mogrify.c:168 #6 0x0000000000400877 in ConvertMain (argv=0x7fffffffdc68, argc=19) at ../../utilities/convert.c:81 #7 main (argc=19, argv=0x7fffffffdc68) at ../../utilities/convert.c:92 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1793485/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~group.of.nepali.translators Post to : group.of.nepali.translators@lists.launchpad.net Unsubscribe : https://launchpad.net/~group.of.nepali.translators More help : https://help.launchpad.net/ListHelp