This is the description for the upstream fix of this bug[1] :
This is an odd bug: If the number of chains is right and one renames the
last one in the list, libiptc dereferences a NULL pointer.
Commit 97bf4e68fc0794adba3243fd96f40f4568e7216f fixes this bug upstream. This bug is to have the fix included in Ubuntu in order to avoid such segmentation faults.
This is the description for the upstream fix of this bug[1] :
This is an odd bug: If the number of chains is right and one renames the
last one in the list, libiptc dereferences a NULL pointer.
Commit 97bf4e68fc0794a dba3243fd96f40f 4568e7216f fixes this bug upstream. This bug is to have the fix included in Ubuntu in order to avoid such segmentation faults.
[1] http:// git.netfilter. org/iptables/ commit/ ?id=97bf4e68fc0 794adba3243fd96 f40f4568e7216f