Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   =?UTF-8?q?Maciej=20=C5=BBenczykowski?= <zenczykowski@gmail.com>
To:     =?UTF-8?q?Maciej=20=C5=BBenczykowski?= <maze@google.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>
Cc:     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>
Subject: [PATCH] restore behaviour of CAP_SYS_ADMIN allowing the loading of net bpf program
Date:   Thu, 18 Jun 2020 12:59:56 -0700
Message-Id: <20200618195956.73967-1-zenczykowski@gmail.com>
In-Reply-To: <CAHo-OoyU5OHQuqpTEo-uAQcwcLpzkXezFY6Re-Hv6jGM9aSFSA@mail.gmail.com>
References: <CAHo-OoyU5OHQuqpTEo-uAQcwcLpzkXezFY6Re-Hv6jGM9aSFSA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Maciej Żenczykowski <maze@google.com>

This is a 5.8-rc1 regression.

Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Fixes: 2c78ee898d8f ("bpf: Implement CAP_BPF")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
---
 kernel/bpf/syscall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 8da159936bab..7d946435587d 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -2121,7 +2121,7 @@ static int bpf_prog_load(union bpf_attr *attr, union bpf_attr __user *uattr)
 	    !bpf_capable())
 		return -EPERM;
 
-	if (is_net_admin_prog_type(type) && !capable(CAP_NET_ADMIN))
+	if (is_net_admin_prog_type(type) && !capable(CAP_NET_ADMIN) && !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	if (is_perfmon_prog_type(type) && !perfmon_capable())
 		return -EPERM;
-- 
2.27.0.290.gba653c62da-goog