> I'm pretty sure there's a patch queued up somewhere to make > posix_acl_equiv_mode handle the NULL ACL. I think this was first > reportd on gfs2. That might be a better solution, posix_acl_equiv is used at several places (e.g. tmpfs, where the bug is also triggered). However, in e.g. the ext4 or the btrfs acl implementation, acl == NULL is catched.
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