[Bug 221064] zfs should not be able to shadow mount on root directory from userspace

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Jul 29 07:48:11 UTC 2017


Poul-Henning Kamp <phk at FreeBSD.org> changed:

           What    |Removed                     |Added
                 CC|                            |phk at FreeBSD.org

--- Comment #5 from Poul-Henning Kamp <phk at FreeBSD.org> ---
Quite the contrary, it is far more useful than dangerous:  It is not
uncommon for embedded systems to boot with a absolutely minimal root
filesystem compiled into the kernel, and /sbin/init in that filesystem
will mount the "real" root over / and exec the "real" /sbin/init.

(And remember: FreeBSD delivers tools, not policies).

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