I have the following situation: GPT disk with Windows partitions first, and then root, swap and home Linux partitions. When trying to increase root partition size, move swap to the right, and decrease home partition size using GParted, resize2fs will segfault on Fedora 25 Workstation live. Same thing works on Fedora 24 Workstation live. On this particular machine, segfaults are consistent. Let me know what other data I can provide.
Of course, this is fixed in updates but not on live media. Sorry. *** This bug has been marked as a duplicate of bug 1383629 ***