Date: Tue, 17 Aug 2010 13:20:05 GMT From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/39329: [mount] '..' at mountpoint is subject to the ?permissions of the shadowed dir Message-ID: <201008171320.o7HDK5qo040189@freefall.freebsd.org>
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The following reply was made to PR kern/39329; it has been noted by GNATS.
From: Oliver Fromme <olli@lurza.secnetix.de>
To: freebsd-bugs@FreeBSD.ORG, bug-followup@FreeBSD.ORG, svdb@stack.nl,
arundel@FreeBSD.ORG
Cc:
Subject: Re: kern/39329: [mount] '..' at mountpoint is subject to the ?permissions of the shadowed dir
Date: Tue, 17 Aug 2010 15:12:33 +0200 (CEST)
arundel@freebsd.org wrote:
> Synopsis: [mount] '..' at mountpoint is subject to the permissions of the shadowed dir
That's not a bug. It's supposed to work that way, and it
works like this in all UNIX variants that I'm aware of.
In fact I think it would be a bug if the behaviour was
changed. That might even break some legitimate uses of
the feature.
It is clearly documented in the mount(8) manual page:
After a successful mount, the permissions on the original
mount point determine if '..' is accessible from the mounted
file system. The minimum permissions for the mount point
for traversal across the mount point in both directions to
be possible for all users is 0111 (execute for all).
This PR should be closed.
Best regards
Oliver
--
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> Can the denizens of this group enlighten me about what the
> advantages of Python are, versus Perl ?
"python" is more likely to pass unharmed through your spelling
checker than "perl".
-- An unknown poster and Fredrik Lundh
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