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linux/net/bluetooth
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Frédéric Danis c6d527bbd3 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 2025-04-25 10:43:49 +02:00
..
bnep Bluetooth: bnep: fix wild-memory-access in proto_unregister 2024-11-01 01:56:01 +01:00
cmtp Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
hidp Bluetooth: Fix race condition in hidp_session_thread 2023-04-20 12:35:06 +02:00
rfcomm Revert "Bluetooth: hci_core: Fix sleeping function called from invalid context" 2025-03-28 21:58:49 +01:00
6lowpan.c Bluetooth: Fix error code in chan_alloc_skb_cb() 2025-03-28 21:59:00 +01:00
a2mp.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
a2mp.h Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
af_bluetooth.c Revert "Bluetooth: af_bluetooth: Fix deadlock" 2024-11-17 15:07:19 +01:00
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: Fix null pointer deref on unexpected status event 2022-08-08 17:04:37 -07:00
aosp.h Bluetooth: aosp: Support AOSP Bluetooth Quality Report 2021-11-02 19:37:52 +01:00
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
eir.c Bluetooth: Fix eir name length 2024-03-26 18:20:42 -04:00
eir.h Bluetooth: Add initial implementation of BIS connections 2022-07-22 17:13:56 -07:00
hci_codec.c Bluetooth: Fix support for Read Local Supported Codecs V2 2022-12-02 13:09:31 -08:00
hci_codec.h Bluetooth: Add support for Read Local Supported Codecs V2 2021-09-07 14:09:18 -07:00
hci_conn.c Revert "Bluetooth: hci_conn: Consolidate code for aborting connections" 2024-11-17 15:07:19 +01:00
hci_core.c Revert "Bluetooth: hci_core: Fix sleeping function called from invalid context" 2025-03-28 21:58:49 +01:00
hci_debugfs.c Bluetooth: Fix TOCTOU in HCI debugfs implementation 2024-04-10 16:28:24 +02:00
hci_debugfs.h Bluetooth: hci_core: Move all debugfs handling to hci_debugfs.c 2021-09-22 16:17:13 +02:00
hci_event.c Bluetooth: hci_event: Fix sending MGMT_EV_DEVICE_FOUND for invalid address 2025-04-25 10:43:48 +02:00
hci_request.c Bluetooth: Fix memory leak in hci_req_sync_complete() 2024-04-17 11:18:22 +02:00
hci_request.h Bluetooth: Delete unused hci_req_prepare_suspend() declaration 2023-10-10 22:00:40 +02:00
hci_sock.c Bluetooth: hci_sock: Fix not validating setsockopt user input 2024-10-17 15:21:33 +02:00
hci_sync.c Bluetooth: hci_sync: Fix not setting Random Address when required 2025-01-17 13:34:39 +01:00
hci_sysfs.c Bluetooth: fix use-after-free in device_for_each_child() 2024-12-14 19:53:34 +01:00
iso.c Revert "Bluetooth: hci_core: Fix sleeping function called from invalid context" 2025-03-28 21:58:49 +01:00
Kconfig Bluetooth: Add initial implementation of CIS connections 2022-07-22 17:13:22 -07:00
l2cap_core.c Bluetooth: l2cap: Check encryption key size on incoming connection 2025-04-25 10:43:49 +02:00
l2cap_sock.c Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection 2025-02-21 13:49:40 +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: Fix EALREADY and ELOOP cases in bt_status() 2022-12-31 13:32:28 +01:00
Makefile Bluetooth: Add BTPROTO_ISO socket type 2022-07-22 17:13:39 -07:00
mgmt.c Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected() 2025-03-13 12:53:14 +01:00
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 Bluetooth: Implement support for Mesh 2022-09-06 13:18:24 -07:00
mgmt_util.h Bluetooth: Fix a buffer overflow in mgmt_mesh_add() 2023-02-01 08:34:21 +01:00
msft.c Bluetooth: msft: fix slab-use-after-free in msft_do_close() 2024-05-17 11:56:11 +02:00
msft.h Bluetooth: msft: fix slab-use-after-free in msft_do_close() 2024-05-17 11:56:11 +02:00
sco.c Revert "Bluetooth: hci_core: Fix sleeping function called from invalid context" 2025-03-28 21:58:49 +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 11:10:17 +02:00
smp.h Bluetooth: use inclusive language in SMP 2021-06-26 07:12:37 +02:00