linux-kernel - Re: [PATCH] Bluetooth: hci_ldisc: require CAP_NET_ADMIN to attach N

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Message-Id: <5E587006-CB9D-4561-955D-F296DE70CD22@holtmann.org>
Date:   Wed, 22 Sep 2021 16:15:32 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
Cc:     linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>
Subject: Re: [PATCH] Bluetooth: hci_ldisc: require CAP_NET_ADMIN to attach
 N_HCI ldisc

Hi Thadeu,

> Any unprivileged user can attach N_HCI ldisc and send packets coming from a
> virtual controller by using PTYs.
> 
> Require initial namespace CAP_NET_ADMIN to do that.
> 
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
> ---
> drivers/bluetooth/hci_ldisc.c | 3 +++
> 1 file changed, 3 insertions(+)

patch has been applied to bluetooth-next tree.

Regards

Marcel