From: Eric Dumazet <eric.dumazet@gmail.com>
To: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
Daniel Borkmann <dborkman@redhat.com>
Subject: Re: [PATCH net-next] filter: do not output bpf image address for security reason
Date: Fri, 17 May 2013 16:48:37 -0700 [thread overview]
Message-ID: <1368834517.3301.130.camel@edumazet-glaptop> (raw)
In-Reply-To: <1368834171.2194.98.camel@joe-AO722>
On Fri, 2013-05-17 at 16:42 -0700, Joe Perches wrote:
> Are stable equivalents for versions before commit 79617801ea0
> necessary?
>
I do not think so.
In order to get these messages printed, the admin had to specifically do
echo 2 >/proc/sys/net/core/bpf_jit_enable
And quite frankly I doubt anybody would need to do such thing, but
netdev guys writing/patching BPF JIT
And even with these messages printed, you need some bug in the kernel
allowing an exploit.
next prev parent reply other threads:[~2013-05-17 23:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-17 23:31 [PATCH net-next] filter: do not output bpf image address for security reason Eric Dumazet
2013-05-17 23:42 ` Joe Perches
2013-05-17 23:48 ` Eric Dumazet [this message]
2013-05-18 1:11 ` Ben Hutchings
2013-05-18 1:27 ` David Miller
2013-05-18 2:55 ` Eric Dumazet
-- strict thread matches above, loose matches on Subject: below --
2013-05-18 2:57 Eric Dumazet
2013-05-20 6:57 ` David Miller
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