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(parent: 1791458) | patch
mnt: Fix fs_fully_visible to verify the root directory is visible
authorEric W. Biederman <ebiederm@xmission.com>
Fri, 8 May 2015 21:36:50 +0000 (16:36 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 17 May 2015 16:55:06 +0000 (09:55 -0700)
commitf8cf2bd9dfe7b3f22435bd884bfeb555ae62652c
treeffa90f2cd459f46f46726159784c9f3e6ab6dd86tree | snapshot
parent1791458ce042a0fb8780976f21837cbf2642f3a5commit | diff
mnt: Fix fs_fully_visible to verify the root directory is visible

commit 7e96c1b0e0f495c5a7450dc4aa7c9a24ba4305bd upstream.

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.

Reported-by: Eric Windisch <ewindisch@docker.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/namespace.c diff | blob | history
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