This is almost certainly fixed via this patch:
https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/commit/?h=maint&id=b0ec76d623f737a32abc5ab8bb7198bf1d9939a4
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to be a "regular" (non-security) bug. I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privile
