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Message-ID: <20210320154936.GE3023@ubuntu>
Date: Sat, 20 Mar 2021 16:49:36 +0100
From: John Wood <john.wood@....com>
To: Kees Cook <keescook@...omium.org>
Cc: John Wood <john.wood@....com>, Jann Horn <jannh@...gle.com>,
Randy Dunlap <rdunlap@...radead.org>,
Jonathan Corbet <corbet@....net>, James Morris <jmorris@...ei.org>,
Shuah Khan <shuah@...nel.org>, "Serge E. Hallyn" <serge@...lyn.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Andi Kleen <ak@...ux.intel.com>,
kernel test robot <oliver.sang@...el.com>,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-security-module@...r.kernel.org,
linux-kselftest@...r.kernel.org,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v6 6/8] selftests/brute: Add tests for the Brute LSM
On Wed, Mar 17, 2021 at 09:08:17PM -0700, Kees Cook wrote:
> On Sun, Mar 07, 2021 at 12:30:29PM +0100, John Wood wrote:
> > +
> > +count_fork_matches()
> > +{
> > + dmesg | grep "brute: Fork brute force attack detected" | wc -l
>
> This may be unstable if the dmesg scrolls past, etc. See how
> lkdtm/run.sh handles this with a temp file and "comm".
Thanks, I will correct this for the next version.
John Wood
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