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SubjectRe: Filesystem Capabilities in 2.6?

On Sat, 2 Nov 2002, David D. Hagood wrote:
> Linus Torvalds wrote:
> >
> > And pathnames are a _hell_ of a lot better and straightforward interface
> > than inode numbers are. It's confusing when you change the permission on
> > one path to notice that another path magically changed too.
>
> Would this not allow a user to add permissions to a file, by creating a
> new directory entry and linking it to an existing inode?
>
> Would that not be a greater security hole?

No. The file itself has _no_ capabilities at all. If you just link to it,
you can give it whatever capabilities _you_ have as a user (well, normal
users don't really have any capabilities to give, but you get the idea).

Linus

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