From: "Mickaël Salaün" <mic@digikod.net>
To: Kees Cook <keescook@chromium.org>
Cc: "Christian Brauner" <brauner@kernel.org>,
"Jakub Kicinski" <kuba@kernel.org>,
"Mark Brown" <broonie@kernel.org>,
"Shengyu Li" <shengyu.li.evgeny@gmail.com>,
"Shuah Khan" <shuah@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
"Günther Noack" <gnoack@google.com>,
"Will Drewry" <wad@chromium.org>,
"kernel test robot" <oliver.sang@intel.com>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v1 2/5] selftests/landlock: Fix FS tests when run on a private mount point
Date: Mon, 29 Apr 2024 14:39:08 +0200 [thread overview]
Message-ID: <20240429.Chahf2sai1au@digikod.net> (raw)
In-Reply-To: <202404261237.C703A7B1F4@keescook>
On Fri, Apr 26, 2024 at 12:38:17PM -0700, Kees Cook wrote:
> On Fri, Apr 26, 2024 at 07:22:49PM +0200, Mickaël Salaün wrote:
> > According to the test environment, the mount point of the test's working
> > directory may be shared or not, which changes the visibility of the
> > nested "tmp" mount point for the test's parent process calling
> > umount("tmp").
> >
> > This was spotted while running tests on different Linux distributions,
> > with different mount point configurations.
>
> Which distros did what?
Actually it's not related to distros, but rather container runtime
(Docker) vs. non-container environment. With Docker (at least on my
environment) all mount points are private, which is not the case (by
default) when running the same UML environment not in a container. See
https://github.com/landlock-lsm/landlock-test-tools/pull/4
I'll update the description.
next prev parent reply other threads:[~2024-04-29 12:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 17:22 [PATCH v1 0/5] Fix Kselftest's vfork() side effects Mickaël Salaün
2024-04-26 17:22 ` [PATCH v1 1/5] selftests/pidfd: Fix config for pidfd_setns_test Mickaël Salaün
2024-04-26 19:37 ` Kees Cook
2024-04-26 17:22 ` [PATCH v1 2/5] selftests/landlock: Fix FS tests when run on a private mount point Mickaël Salaün
2024-04-26 19:38 ` Kees Cook
2024-04-29 12:39 ` Mickaël Salaün [this message]
2024-04-26 17:22 ` [PATCH v1 3/5] selftests/harness: Fix fixture teardown Mickaël Salaün
2024-04-26 19:40 ` Kees Cook
2024-04-26 17:22 ` [PATCH v1 4/5] selftests/harness: Fix interleaved scheduling leading to race conditions Mickaël Salaün
2024-04-26 17:22 ` [PATCH v1 5/5] selftests/harness: Fix vfork() side effects and uncaught errors Mickaël Salaün
2024-04-26 19:47 ` Kees Cook
2024-04-29 12:39 ` Mickaël Salaün
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