[ext2resize] bug in ext2resize 1.1.14

[Dieter S. <st...@co...>]

while trying to resize my 137Gb partition I got a core.
After analyzing the problem I found a serious bug in
ext2resize 1.1.14 when shrinking a huge partition:

I found a parameter "ext2_max_groups = 1024" from tune.c,
which is capable to handle about 8GB. Although it is adapted
to handle greater partitions if needed by ext2resize.c:main(),
the calculated size needed, however is taken from the (possibly
smaller) size requested, not from the actual size if the file system.

Thus I got a segfault in ext2_determine_itoffset().

Maybe there is a newer version meanwhile, with this problem
resolved; but I just escaped to kill may 137Gb :-( and
I did not find any hint about such a bug anywhere.

I helped me by drastically increasing the parameters from
tune.c for my needs, but I think there should be a better
solution for that.

regards, Dieter.
-- 
Dieter Stüken, con terra GmbH, Münster
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