Re: [RFC PATCH 1/2] security, capabilities: create CAP_TRUSTED

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Quoting Nicolas Belouin (nicolas@xxxxxxxxxx):
> with CAP_SYS_ADMIN being bloated, the usefulness of using it to
> flag a process to be entrusted for e.g reading and writing trusted
> xattr is near zero.
> CAP_TRUSTED aims to provide userland with a way to mark a process as
> entrusted to do specific (not specially admin-centered) actions. It
> would for example allow a process to red/write the trusted xattrs.

You say "for example".  Are you intending to add more uses?  If so, what
are they?  If not, how about renaming it CAP_TRUSTED_XATTR?

What all does allowing writes to trusted xattrs give you?  There are
the overlayfs whiteouts, what else?
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