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linux/net/bluetooth
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Frédéric Danis 24b2cdfc16 Bluetooth: l2cap: Check encryption key size on incoming connection 
[ Upstream commit 522e9ed157 ]

This is required for passing GAP/SEC/SEM/BI-04-C PTS test case:
  Security Mode 4 Level 4, Responder - Invalid Encryption Key Size
  - 128 bit

This tests the security key with size from 1 to 15 bytes while the
Security Mode 4 Level 4 requests 16 bytes key size.

Currently PTS fails with the following logs:
- expected:Connection Response:
    Code: [3 (0x03)] Code
    Identifier: (lt)WildCard: Exists(gt)
    Length: [8 (0x0008)]
    Destination CID: (lt)WildCard: Exists(gt)
    Source CID: [64 (0x0040)]
    Result: [3 (0x0003)] Connection refused - Security block
    Status: (lt)WildCard: Exists(gt),
but received:Connection Response:
    Code: [3 (0x03)] Code
    Identifier: [1 (0x01)]
    Length: [8 (0x0008)]
    Destination CID: [64 (0x0040)]
    Source CID: [64 (0x0040)]
    Result: [0 (0x0000)] Connection Successful
    Status: [0 (0x0000)] No further information available

And HCI logs:
< HCI Command: Read Encrypti.. (0x05|0x0008) plen 2
        Handle: 14 Address: 00:1B:DC:F2:24:10 (Vencer Co., Ltd.)
> HCI Event: Command Complete (0x0e) plen 7
      Read Encryption Key Size (0x05|0x0008) ncmd 1
        Status: Success (0x00)
        Handle: 14 Address: 00:1B:DC:F2:24:10 (Vencer Co., Ltd.)
        Key size: 7
> ACL Data RX: Handle 14 flags 0x02 dlen 12
      L2CAP: Connection Request (0x02) ident 1 len 4
        PSM: 4097 (0x1001)
        Source CID: 64
< ACL Data TX: Handle 14 flags 0x00 dlen 16
      L2CAP: Connection Response (0x03) ident 1 len 8
        Destination CID: 64
        Source CID: 64
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)

Fixes: 288c06973d ("Bluetooth: Enforce key size of 16 bytes on FIPS level")
Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-05-02 07:44:09 +02:00
..
bnep Bluetooth: bnep: fix wild-memory-access in proto_unregister 2024-11-01 01:52:34 +01:00
cmtp exit: Rename module_put_and_exit to module_put_and_kthread_exit 2024-04-10 16:18:55 +02:00
hidp exit: Rename module_put_and_exit to module_put_and_kthread_exit 2024-04-10 16:18:55 +02:00
rfcomm Bluetooth: RFCOMM: Fix not validating setsockopt user input 2025-02-01 18:24:01 +01:00
6lowpan.c Bluetooth: Fix error code in chan_alloc_skb_cb() 2025-04-10 14:31:54 +02:00
a2mp.c Bluetooth: a2mp: Use the correct print format 2021-06-26 07:12:41 +02:00
a2mp.h Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
af_bluetooth.c Bluetooth: Remove debugfs directory on module init failure 2024-10-22 15:40:45 +02:00
amp.c Bluetooth: amp: Use the correct print format 2021-06-26 07:12:41 +02:00
amp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
aosp.c Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
aosp.h Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
ecdh_helper.c crypto: ecdh - move curve_id of ECDH from the key to algorithm name 2021-03-13 00:04:03 +11:00
ecdh_helper.h Fix misc new gcc warnings 2021-04-27 17:05:53 -07:00
hci_conn.c Bluetooth: Fix bogus check for re-auth no supported with non-ssp 2024-01-25 14:52:40 -08:00
hci_core.c Bluetooth: hci_core: Fix calling mgmt_device_connected 2024-12-14 19:51:47 +01:00
hci_debugfs.c Bluetooth: Fix TOCTOU in HCI debugfs implementation 2024-04-10 16:19:37 +02:00
hci_debugfs.h Bluetooth: Provide option to enable/disable debugfs information 2015-02-15 18:54:13 +02:00
hci_event.c Bluetooth: hci_event: Fix sending MGMT_EV_DEVICE_FOUND for invalid address 2025-05-02 07:44:09 +02:00
hci_request.c Bluetooth: Fix memory leak in hci_req_sync_complete() 2024-04-17 11:15:13 +02:00
hci_request.h Bluetooth: Resume advertising after LE connection 2020-11-09 13:33:19 +01:00
hci_sock.c Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name 2023-10-25 11:59:04 +02:00
hci_sysfs.c Bluetooth: fix use-after-free in device_for_each_child() 2024-12-14 19:50:59 +01:00
Kconfig Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
l2cap_core.c Bluetooth: l2cap: Check encryption key size on incoming connection 2025-05-02 07:44:09 +02:00
l2cap_sock.c Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection 2025-03-13 12:50:25 +01:00
leds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
leds.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lib.c Bluetooth: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
Makefile Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
mgmt.c Bluetooth: MGMT: Ignore keys being loaded with invalid type 2024-09-12 11:07:43 +02:00
mgmt_config.c Bluetooth: mgmt: Use the correct print format 2021-06-26 07:12:42 +02:00
mgmt_config.h Bluetooth: mgmt: Add commands for runtime configuration 2020-06-18 13:11:03 +03:00
mgmt_util.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
mgmt_util.h Bluetooth: Add generic mgmt helper API 2015-03-17 18:03:08 +01:00
msft.c Bluetooth: msft: Use the correct print format 2021-06-26 07:12:42 +02:00
msft.h Bluetooth: Allow Microsoft extension to indicate curve validation 2021-04-08 12:26:34 +02:00
sco.c Bluetooth: SCO: Fix not validating setsockopt user input 2025-02-01 18:24:01 +01:00
selftest.c crypto: ecdh - move curve_id of ECDH from the key to algorithm name 2021-03-13 00:04:03 +11:00
selftest.h Bluetooth: Add support for self testing framework 2014-12-30 08:53:55 +02:00
smp.c Revert "Bluetooth: MGMT/SMP: Fix address type when using SMP over BREDR/LE" 2024-09-12 11:07:43 +02:00
smp.h Bluetooth: use inclusive language in SMP 2021-06-26 07:12:37 +02:00