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SubjectRe: [PATCH] Capabilities, this time in elf section

David L. Parsley writes:

> Well, the stickybit/immutable solution has been modified so that it can
> be compatible with local fs tools, but is still not completely secure with
> remote fs's. Still, nfs at least should understand the sticky bit, and if
> you can trust the security of the sticky bit on the remote system, it _is_
> possible to use caps with a mount option.

Ugh. Immutable does not survive backup and restore. The sticky bit
is not even secure on a Linux 2.2 server.

> I hope you're both following my thread with Pavel Machek, where I have
> shown showstopper problems with the setuid0 scheme. It just doesn't
> implement capabilities, but rather mutates them badly in order to work
> with the setuid0 scheme.

Not so fast. You didn't discover any showstopper problems.

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