Fedor Pchelkin ddfc234761 Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection ...

commit 5c61419e02 upstream.

One of the possible ways to enable the input MTU auto-selection for L2CAP
connections is supposed to be through passing a special "0" value for it
as a socket option. Commit [1] added one of those into avdtp. However, it
simply wouldn't work because the kernel still treats the specified value
as invalid and denies the setting attempt. Recorded BlueZ logs include the
following:

  bluetoothd[496]: profiles/audio/avdtp.c:l2cap_connect() setsockopt(L2CAP_OPTIONS): Invalid argument (22)

[1]: ae5be371a9

Found by Linux Verification Center (linuxtesting.org).

Fixes: 4b6e228e29 ("Bluetooth: Auto tune if input MTU is set to 0")
Cc: stable@vger.kernel.org
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-02-17 10:05:09 +01:00

..

bnep

Bluetooth: bnep: fix wild-memory-access in proto_unregister

2024-10-16 16:10:03 -04:00

cmtp

Bluetooth: CMTP: Mark BT_CMTP as DEPRECATED

2024-09-10 13:07:08 -04:00

hidp

Bluetooth: Init sk_peer_* on bt_sock_alloc

2023-08-11 11:37:22 -07:00

rfcomm

Bluetooth: btmtk: Fix failed to send func ctrl for MediaTek devices.

2025-01-17 13:40:39 +01:00

6lowpan.c

ipv6: introduce dst_rt6_info() helper

2024-04-29 13:32:01 +01:00

af_bluetooth.c

Merge tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-10-24 16:43:50 -07:00

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

coredump.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

ecdh_helper.c

Bluetooth: Use crypto_wait_req

2023-02-13 18:34:48 +08:00

ecdh_helper.h

Fix misc new gcc warnings

2021-04-27 17:05:53 -07:00

eir.c

Bluetooth: Fix eir name length

2024-03-08 10:22:17 -05:00

eir.h

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

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

Bluetooth: hci_conn: Use disable_delayed_work_sync

2024-12-14 20:03:56 +01:00

hci_core.c

Bluetooth: hci_core: Fix sleeping function called from invalid context

2025-01-09 13:33:46 +01:00

hci_debugfs.c

Bluetooth: Remove hci_request.{c,h}

2024-07-15 10:11:35 -04:00

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 using rcu_read_(un)lock while iterating

2024-12-19 18:13:20 +01:00

hci_sock.c

Bluetooth: Improve setsockopt() handling of malformed user input

2024-12-19 18:13:17 +01:00

hci_sync.c

Bluetooth: hci_sync: Fix not setting Random Address when required

2025-01-17 13:40:39 +01:00

hci_sysfs.c

Bluetooth: fix use-after-free in device_for_each_child()

2024-12-05 14:01:59 +01:00

iso.c

Bluetooth: hci_core: Fix sleeping function called from invalid context

2025-01-09 13:33:46 +01:00

Kconfig

Bluetooth: Remove BT_HS

2024-03-06 17:22:39 -05:00

l2cap_core.c

Bluetooth: hci_core: Fix sleeping function called from invalid context

2025-01-09 13:33:46 +01:00

l2cap_sock.c

Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection

2025-02-17 10:05:09 +01:00

leds.c

Bluetooth: Use led_set_brightness() in LED trigger activate() callback

2024-09-10 13:06:11 -04:00

leds.h

…

lib.c

Bluetooth: Add documentation to exported functions in lib

2023-12-22 12:54:55 -05:00

Makefile

Bluetooth: Remove hci_request.{c,h}

2024-07-15 10:11:35 -04:00

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

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

mgmt_util.h

Bluetooth: Fix a buffer overflow in mgmt_mesh_add()

2023-01-17 15:50:10 -08:00

mgmt.c

Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync

2025-02-17 10:04:52 +01:00

msft.c

Bluetooth: Remove hci_request.{c,h}

2024-07-15 10:11:35 -04:00

msft.h

Bluetooth: msft: fix slab-use-after-free in msft_do_close()

2024-05-03 13:05:28 -04:00

sco.c

Bluetooth: hci_core: Fix sleeping function called from invalid context

2025-01-09 13:33:46 +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

…

smp.c

Revert "Bluetooth: MGMT/SMP: Fix address type when using SMP over BREDR/LE"

2024-08-30 17:56:53 -04:00

smp.h

Bluetooth: use inclusive language in SMP

2021-06-26 07:12:37 +02:00