From: James Morris <jmorris@namei.org>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: linux-security-module@vger.kernel.org,
syzbot <syzbot+29569ed06425fcf67a95@syzkaller.appspotmail.com>,
syzbot <syzbot+2ee3f8974c2e7dc69feb@syzkaller.appspotmail.com>,
syzbot <syzbot+e1b8084e532b6ee7afab@syzkaller.appspotmail.com>
Subject: Re: [PATCH (resend)] tomoyo: Add a kernel config option for fuzzing testing.
Date: Tue, 30 Apr 2019 06:07:03 +1000 (AEST) [thread overview]
Message-ID: <alpine.LRH.2.21.1904300606410.20645@namei.org> (raw)
In-Reply-To: <1555067094-9861-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp>
On Fri, 12 Apr 2019, Tetsuo Handa wrote:
> syzbot is reporting kernel panic triggered by memory allocation fault
> injection before loading TOMOYO's policy [1]. To make the fuzzing tests
> useful, we need to assign a profile other than "disabled" (no-op) mode.
> Therefore, let's allow syzbot to load TOMOYO's built-in policy for
> "learning" mode using a kernel config option. This option must not be
> enabled for kernels built for production system, for this option also
> disables domain/program checks when modifying policy configuration via
> /sys/kernel/security/tomoyo/ interface.
>
> [1] https://syzkaller.appspot.com/bug?extid=29569ed06425fcf67a95
>
> Reported-by: syzbot <syzbot+e1b8084e532b6ee7afab@syzkaller.appspotmail.com>
> Reported-by: syzbot <syzbot+29569ed06425fcf67a95@syzkaller.appspotmail.com>
> Reported-by: syzbot <syzbot+2ee3f8974c2e7dc69feb@syzkaller.appspotmail.com>
> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
> ---
> security/tomoyo/Kconfig | 10 ++++++++++
> security/tomoyo/common.c | 13 ++++++++++++-
> 2 files changed, 22 insertions(+), 1 deletion(-)
>
Applied to
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next-tomoyo
--
James Morris
<jmorris@namei.org>
prev parent reply other threads:[~2019-04-29 20:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 11:04 [PATCH (resend)] tomoyo: Add a kernel config option for fuzzing testing Tetsuo Handa
2019-04-22 13:06 ` Tetsuo Handa
2019-04-22 22:52 ` James Morris
2019-04-23 10:44 ` Tetsuo Handa
2019-04-29 20:07 ` James Morris [this message]
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