Re: [RFC PATCH] fs: allow open(dir, O_TMPFILE|..., 0) with mode 0

[Linus Torvalds]

On Wed, Nov 5, 2014 at 7:32 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
>
> I have no idea whether it's a security risk, but it's a serious "wtf?!?" risk.

Yeah. And considering that the only apparently user of this read-only
O_TMPFILE interface doesn't actually need it anyway because it carries
around the whole "read-only to the client" information independently,
I think the issue is moot. We don't need zero-sized read-only
O_TMPFILE files.

                      Linus
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