It can be listed with "ls" too, on every filesystem. (Just tested on
ext2.) Plain /bin/ls without any options will simply list it, while
shell-builtin or -F or -l etc. will give a lot of complaints about
permission denied when trying to stat() each file in the directory,
which is disallowed because of the missing x flag.
> user (it isn't a user to user security issue) but is a bug.
It is no bug. Read permission on a directory means exactly that: being
able to read the directory, which is listing the file names and inode
numbers in it.
olaf
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