linux-kernel - Re: [PATCH RFC] perf_event: Add support for LSM and SELinux checks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 11 Oct 2019 06:41:01 +1100 (AEDT)
From:   James Morris <jmorris@...ei.org>
To:     Casey Schaufler <casey@...aufler-ca.com>
cc:     "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>, rostedt@...dmis.org,
        primiano@...gle.com, rsavitski@...gle.com, jeffv@...gle.com,
        kernel-team@...roid.com, Alexei Starovoitov <ast@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        bpf@...r.kernel.org, Daniel Borkmann <daniel@...earbox.net>,
        Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        linux-security-module@...r.kernel.org,
        Matthew Garrett <matthewgarrett@...gle.com>,
        Namhyung Kim <namhyung@...nel.org>, selinux@...r.kernel.org,
        Song Liu <songliubraving@...com>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        Yonghong Song <yhs@...com>
Subject: Re: [PATCH RFC] perf_event: Add support for LSM and SELinux checks

On Thu, 10 Oct 2019, Casey Schaufler wrote:

> > Because it is not necessary.
> 
> The logic escapes me, but OK.

We should only extend the stacking infrastructure to what is concretely 
required. We don't yet have a use-case for stacking perf_event so we 
should keep the code as simple as possible. As soon as multiple LSMs 
determine they need to share the blob, we can convert the code to blob 
sharing.


-- 
James Morris
<jmorris@...ei.org>