netdev - Re: [PATCH net-next v7 3/5] security: bpf: Add LSM hooks for bpf object related syscall

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Message-ID: <alpine.LFD.2.20.1710201153050.11171@t440.gateway.2wire.net>
Date:   Fri, 20 Oct 2017 11:54:20 +1100 (AEDT)
From:   James Morris <james.l.morris@...cle.com>
To:     Chenbo Feng <chenbofeng.kernel@...il.com>
cc:     netdev@...r.kernel.org, SELinux <Selinux@...ho.nsa.gov>,
        linux-security-module@...r.kernel.org,
        Jeffrey Vander Stoep <jeffv@...gle.com>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        lorenzo@...gle.com, Daniel Borkmann <daniel@...earbox.net>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        Paul Moore <paul@...l-moore.com>,
        Chenbo Feng <fengc@...gle.com>
Subject: Re: [PATCH net-next v7 3/5] security: bpf: Add LSM hooks for bpf
 object related syscall

On Wed, 18 Oct 2017, Chenbo Feng wrote:

> From: Chenbo Feng <fengc@...gle.com>
> 
> Introduce several LSM hooks for the syscalls that will allow the
> userspace to access to eBPF object such as eBPF programs and eBPF maps.
> The security check is aimed to enforce a per object security protection
> for eBPF object so only processes with the right priviliges can
> read/write to a specific map or use a specific eBPF program. Besides
> that, a general security hook is added before the multiplexer of bpf
> syscall to check the cmd and the attribute used for the command. The
> actual security module can decide which command need to be checked and
> how the cmd should be checked.
> 
> Signed-off-by: Chenbo Feng <fengc@...gle.com>


Acked-by: James Morris <james.l.morris@...cle.com>

-- 
James Morris
<james.l.morris@...cle.com>