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| /openbmc/linux/net/bluetooth/ |
| H A D | smp.c | 1d87b88b Tue Jun 18 17:47:47 CDT 2019 Szymon Janc <szymon.janc@codecoup.pl> Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
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
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
1d87b88b Tue Jun 18 17:47:47 CDT 2019 Szymon Janc <szymon.janc@codecoup.pl> Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
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
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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