invalid fastbin with convert

[olafkarsten]

Hello,

image in question (wetransfer 75MB)
http://we.tl/jViYgSlk0p

command:

Code: Select all

convert -size 16535x11811 druckdatei_purplegalaxy.jpg -thumbnail 450x450 -unsharp 0x.5 thumb.jpg

fails in current beta and 6.8.5-10 with:
*** Error in `convert': invalid fastbin entry (free): 0x42126e88 ***
Aborted

works fine with 6.7.9-10

It seems it has something to do with the -unsharp option. Command:

Code: Select all

convert -size 16535x11811 druckdatei_purplegalaxy.jpg -thumbnail 450x450 thumb.jpg

works.

Any other data needed?

I use the working version for now, but I wanted to let you know.

[magick]

Try this command:

• convert -define jpeg:size=450x450 druckdatei_purplegalaxy.jpg -thumbnail 450x450 -unsharp 0x.5 thumb.jpg

[olafkarsten]

Now it fails with

*** Error in `convert': free(): invalid next size (normal): 0x08742fc0 ***
Aborted

Without the unsharp option it works.

I've learned something. It's really fast (without unsharp). Thanks for that.

[magick]

We can reproduce the problem you posted and have a patch in ImageMagick 6.8.6-0 Beta available by sometime tomorrow. Thanks.