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From: John Wood <john.wood@gmx.com>
To: Andi Kleen <ak@linux.intel.com>
Cc: John Wood <john.wood@gmx.com>, Kees Cook <keescook@chromium.org>,
	Jann Horn <jannh@google.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Jonathan Corbet <corbet@lwn.net>,
	James Morris <jmorris@namei.org>, Shuah Khan <shuah@kernel.org>,
	"Serge E. Hallyn" <serge@hallyn.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	linux-kselftest@vger.kernel.org,
	kernel-hardening@lists.openwall.com
Subject: Re: [PATCH v5 7/8] Documentation: Add documentation for the Brute LSM
Date: Fri, 12 Mar 2021 18:54:44 +0100	[thread overview]
Message-ID: <20210312175444.GC3103@ubuntu> (raw)
In-Reply-To: <20210311200517.GG203350@tassilo.jf.intel.com>

On Thu, Mar 11, 2021 at 12:05:17PM -0800, Andi Kleen wrote:
>
> Okay but that means that the brute force attack can just continue
> because the attacked daemon will be respawned?
>
> You need some way to stop the respawning, otherwise the
> mitigation doesn't work for daemons.
>
I will work on your solution regarding respawned daemons (use wait*() to inform
userspace that the offending processes killed by the mitigation exited due to
this mitigation -> then the supervisor can adopt their own policy).

>
> -Andi
>

Thank you very much,
John Wood

  reply	other threads:[~2021-03-12 17:55 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-27 15:30 [PATCH v5 0/8] Fork brute force attack mitigation John Wood
2021-02-27 15:30 ` [PATCH v5 1/8] security: Add LSM hook at the point where a task gets a fatal signal John Wood
2021-02-27 15:30 ` [PATCH v5 2/8] security/brute: Define a LSM and manage statistical data John Wood
2021-03-02  5:49   ` [security/brute] cfe92ab6a3: WARNING:inconsistent_lock_state kernel test robot
2021-03-02 18:39     ` John Wood
2021-02-27 15:30 ` [PATCH v5 3/8] securtiy/brute: Detect a brute force attack John Wood
2021-02-27 15:30 ` [PATCH v5 4/8] security/brute: Fine tuning the attack detection John Wood
2021-02-27 15:30 ` [PATCH v5 5/8] security/brute: Mitigate a brute force attack John Wood
2021-03-11 20:32   ` peter enderborg
2021-03-12 16:19     ` John Wood
2021-02-27 15:30 ` [PATCH v5 6/8] selftests/brute: Add tests for the Brute LSM John Wood
2021-02-27 15:30 ` [PATCH v5 7/8] Documentation: Add documentation " John Wood
2021-02-28 18:56   ` Andi Kleen
2021-03-02 18:31     ` John Wood
2021-03-07 15:19       ` Andi Kleen
2021-03-07 16:45         ` John Wood
2021-03-07 17:25           ` Andi Kleen
2021-03-07 18:05             ` John Wood
2021-03-07 22:49               ` Andi Kleen
2021-03-09 18:40                 ` John Wood
2021-03-11 18:22                   ` John Wood
2021-03-11 20:08                     ` Andi Kleen
2021-03-12 17:47                       ` John Wood
2021-03-11 20:05                   ` Andi Kleen
2021-03-12 17:54                     ` John Wood [this message]
2021-02-27 15:30 ` [PATCH v5 8/8] MAINTAINERS: Add a new entry " John Wood
2021-02-27 18:44 ` [PATCH v5 0/8] Fork brute force attack mitigation John Wood

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