From: Marcel Holtmann <marcel@holtmann.org>
To: Szymon Janc <szymon.janc@codecoup.pl>
Cc: linux-bluetooth@vger.kernel.org,
Maarten Fonville <maarten.fonville@gmail.com>,
stable@vger.kernel.org
Subject: Re: [PATCH] Bluetooth: SMP: Workaround Microsoft Surface Precision Mouse bug
Date: Sat, 6 Jul 2019 15:58:03 +0200 [thread overview]
Message-ID: <47663D4D-8800-4A7A-87A6-4708651C40EC@holtmann.org> (raw)
In-Reply-To: <20190618224747.446-1-szymon.janc@codecoup.pl>
Hi Szymon,
> Microsoft Surface Precision Mouse provides bogus identity address when
> pairing. It connects with Static Random address but provides Public
> Address in SMP Identity Address Information PDU. Address has same
> value but type is different. Workaround this by dropping IRK if ID
> address discrepancy is detected.
>
>> HCI Event: LE Meta Event (0x3e) plen 19
> LE Connection Complete (0x01)
> Status: Success (0x00)
> Handle: 75
> Role: Master (0x00)
> Peer address type: Random (0x01)
> Peer address: E0:52:33:93:3B:21 (Static)
> Connection interval: 50.00 msec (0x0028)
> Connection latency: 0 (0x0000)
> Supervision timeout: 420 msec (0x002a)
> Master clock accuracy: 0x00
>
> ....
>
>> ACL Data RX: Handle 75 flags 0x02 dlen 12
> SMP: Identity Address Information (0x09) len 7
> Address type: Public (0x00)
> Address: E0:52:33:93:3B:21
>
> Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
> Tested-by: Maarten Fonville <maarten.fonville@gmail.com>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199461
> Cc: stable@vger.kernel.org
> ---
> net/bluetooth/smp.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
patch has been applied to bluetooth-next tree.
Regards
Marcel
prev parent reply other threads:[~2019-07-06 13:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-18 22:47 [PATCH] Bluetooth: SMP: Workaround Microsoft Surface Precision Mouse bug Szymon Janc
2019-07-06 13:51 ` Marcel Holtmann
2019-07-06 13:58 ` Marcel Holtmann [this message]
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