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From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Andy Lutomirski <luto@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	LSM List <linux-security-module@vger.kernel.org>,
	James Morris <jmorris@namei.org>, Jann Horn <jannh@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	"David S. Miller" <davem@davemloft.net>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Network Development <netdev@vger.kernel.org>,
	bpf <bpf@vger.kernel.org>, kernel-team <kernel-team@fb.com>,
	Linux API <linux-api@vger.kernel.org>
Subject: Re: [PATCH bpf-next] bpf, capabilities: introduce CAP_BPF
Date: Tue, 27 Aug 2019 21:49:05 -0700
Message-ID: <20190828044903.nv3hvinkkolnnxtv@ast-mbp.dhcp.thefacebook.com> (raw)
In-Reply-To: <CALCETrVVQs1s27y8fB17JtQi-VzTq1YZPTPy3k=fKhQB1X-KKA@mail.gmail.com>

On Tue, Aug 27, 2019 at 07:00:40PM -0700, Andy Lutomirski wrote:
> 
> Let me put this a bit differently. Part of the point is that
> CAP_TRACING should allow a user or program to trace without being able
> to corrupt the system. CAP_BPF as you’ve proposed it *can* likely
> crash the system.

Really? I'm still waiting for your example where bpf+kprobe crashes the system...


  reply index

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190827205213.456318-1-ast@kernel.org>
2019-08-27 23:01 ` Andy Lutomirski
2019-08-27 23:21   ` Steven Rostedt
2019-08-27 23:34     ` Andy Lutomirski
2019-08-28  0:44       ` Steven Rostedt
2019-08-28  1:12         ` Andy Lutomirski
2019-08-28  2:22           ` Steven Rostedt
2019-08-28  0:38     ` Alexei Starovoitov
2019-08-28  3:30     ` Masami Hiramatsu
2019-08-28  4:47       ` Alexei Starovoitov
2019-08-28  0:34   ` Alexei Starovoitov
2019-08-28  0:55     ` Andy Lutomirski
2019-08-28  2:00       ` Andy Lutomirski
2019-08-28  4:49         ` Alexei Starovoitov [this message]
2019-08-28  6:20           ` Andy Lutomirski
2019-08-28 23:38             ` Alexei Starovoitov
2019-08-29  0:58               ` Andy Lutomirski
2019-08-28  4:43       ` Alexei Starovoitov
2019-08-28  6:12         ` Andy Lutomirski
2019-08-28 22:55           ` Alexei Starovoitov
2019-08-29  0:45             ` Andy Lutomirski
2019-08-29  0:53               ` Andy Lutomirski
2019-08-29  4:07               ` Alexei Starovoitov
2019-09-28 23:37                 ` Steven Rostedt
2019-09-30 18:31                   ` Kees Cook
2019-10-01  1:22                     ` Alexei Starovoitov
2019-10-01 22:10                       ` Steven Rostedt
2019-10-01 22:18                         ` Alexei Starovoitov
2019-10-01 22:47                           ` Steven Rostedt
2019-10-02 17:18                             ` Alexei Starovoitov
2019-10-02 23:00                               ` Steven Rostedt
2019-10-03 16:18                                 ` trace_printk issue. Was: " Alexei Starovoitov
2019-10-03 16:41                                   ` Steven Rostedt
2019-10-04 19:56                                     ` Alexei Starovoitov
2019-10-03  6:12                     ` Masami Hiramatsu
2019-10-03 16:20                       ` Alexei Starovoitov
2019-08-28  7:14   ` Peter Zijlstra
2019-08-28 22:08     ` Alexei Starovoitov
2019-08-29 13:34       ` Steven Rostedt
2019-08-29 15:43         ` Andy Lutomirski
2019-08-29 17:23           ` Alexei Starovoitov
2019-08-29 17:36             ` Andy Lutomirski
2019-08-29 17:49             ` Steven Rostedt
2019-08-29 17:19         ` Alexei Starovoitov
2019-08-29 17:47           ` Steven Rostedt

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