Eric W. Biederman 7e96c1b0e0 mnt: Fix fs_fully_visible to verify the root directory is visible ...

This fixes a dumb bug in fs_fully_visible that allows proc or sys to
be mounted if there is a bind mount of part of /proc/ or /sys/ visible.

Cc: stable@vger.kernel.org
Reported-by: Eric Windisch <ewindisch@docker.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

2015-05-09 11:55:50 -05:00

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