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From: Lorenz Bauer <lmb@cloudflare.com>
To: "Maciej Żenczykowski" <zenczykowski@gmail.com>
Cc: "Maciej Żenczykowski" <maze@google.com>,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Linux Network Development Mailing List" <netdev@vger.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"BPF Mailing List" <bpf@vger.kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	"Andrii Nakryiko" <andrii@kernel.org>,
	"Greg Kroah-Hartman" <gregkh@google.com>
Subject: Re: [PATCH bpf] Revert "bpf: program: Refuse non-O_RDWR flags in BPF_OBJ_GET"
Date: Fri, 18 Jun 2021 12:55:15 +0100	[thread overview]
Message-ID: <CACAyw99k4ZhePBcRJzJn37rvGKnPHEgE3z8Y-47iYKQO2nqFpQ@mail.gmail.com> (raw)
In-Reply-To: <20210618105526.265003-1-zenczykowski@gmail.com>

On Fri, 18 Jun 2021 at 11:55, Maciej Żenczykowski
<zenczykowski@gmail.com> wrote:
>
> This reverts commit d37300ed182131f1757895a62e556332857417e5.
>
> This breaks Android userspace which expects to be able to
> fetch programs with just read permissions.

Sorry about this! I'll defer to the maintainers what to do here.
Reverting leaves us with a gaping hole for access control of pinned
programs.

-- 
Lorenz Bauer  |  Systems Engineer
6th Floor, County Hall/The Riverside Building, SE1 7PB, UK

www.cloudflare.com

  reply	other threads:[~2021-06-18 11:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-18 10:55 [PATCH bpf] Revert "bpf: program: Refuse non-O_RDWR flags in BPF_OBJ_GET" Maciej Żenczykowski
2021-06-18 11:55 ` Lorenz Bauer [this message]
2021-06-18 18:38   ` Maciej Żenczykowski
     [not found]   ` <CANP3RGdrpb+KiD+a29zTSU3LKR8Qo6aFdo4QseRvPdNhZ_AOJw@mail.gmail.com>
2021-06-21  9:02     ` Lorenz Bauer
2021-06-21 21:37       ` Maciej Żenczykowski
2021-06-22  8:59         ` Lorenz Bauer
2021-06-22 13:03           ` Daniel Borkmann
2021-06-25  0:27             ` Maciej Żenczykowski
2021-06-22  9:48 ` Greg Kroah-Hartman
2021-06-23  8:44 ` Lorenz Bauer
2021-06-25  0:13   ` Maciej Żenczykowski

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