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linux/net/bluetooth
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Luiz Augusto von Dentz cac34e4428 Bluetooth: MGMT: Fix possible deadlocks 
[ Upstream commit a66dfaf18f ]

This fixes possible deadlocks like the following caused by
hci_cmd_sync_dequeue causing the destroy function to run:

 INFO: task kworker/u19:0:143 blocked for more than 120 seconds.
       Tainted: G        W  O        6.8.0-2024-03-19-intel-next-iLS-24ww14 #1
 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 task:kworker/u19:0   state:D stack:0     pid:143   tgid:143   ppid:2      flags:0x00004000
 Workqueue: hci0 hci_cmd_sync_work [bluetooth]
 Call Trace:
  <TASK>
  __schedule+0x374/0xaf0
  schedule+0x3c/0xf0
  schedule_preempt_disabled+0x1c/0x30
  __mutex_lock.constprop.0+0x3ef/0x7a0
  __mutex_lock_slowpath+0x13/0x20
  mutex_lock+0x3c/0x50
  mgmt_set_connectable_complete+0xa4/0x150 [bluetooth]
  ? kfree+0x211/0x2a0
  hci_cmd_sync_dequeue+0xae/0x130 [bluetooth]
  ? __pfx_cmd_complete_rsp+0x10/0x10 [bluetooth]
  cmd_complete_rsp+0x26/0x80 [bluetooth]
  mgmt_pending_foreach+0x4d/0x70 [bluetooth]
  __mgmt_power_off+0x8d/0x180 [bluetooth]
  ? _raw_spin_unlock_irq+0x23/0x40
  hci_dev_close_sync+0x445/0x5b0 [bluetooth]
  hci_set_powered_sync+0x149/0x250 [bluetooth]
  set_powered_sync+0x24/0x60 [bluetooth]
  hci_cmd_sync_work+0x90/0x150 [bluetooth]
  process_one_work+0x13e/0x300
  worker_thread+0x2f7/0x420
  ? __pfx_worker_thread+0x10/0x10
  kthread+0x107/0x140
  ? __pfx_kthread+0x10/0x10
  ret_from_fork+0x3d/0x60
  ? __pfx_kthread+0x10/0x10
  ret_from_fork_asm+0x1b/0x30
  </TASK>

Tested-by: Kiran K <kiran.k@intel.com>
Fixes: f53e1c9c72 ("Bluetooth: MGMT: Fix possible crash on mgmt_index_removed")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-05 14:02:35 +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: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change 2024-10-04 16:54:10 -04:00
6lowpan.c ipv6: introduce dst_rt6_info() helper 2024-04-29 13:32:01 +01:00
af_bluetooth.c Including fixes from netfiler, xfrm and bluetooth. 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: ISO: Send BIG Create Sync via hci_sync 2024-12-05 14:01:59 +01:00
hci_core.c Bluetooth: hci_core: Fix calling mgmt_device_connected 2024-11-12 11:39:12 -05:00
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: ISO: Do not emit LE BIG Create Sync if previous is pending 2024-12-05 14:01:59 +01:00
hci_sock.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
hci_sync.c Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs 2024-10-30 14:49:09 -04:00
hci_sysfs.c Bluetooth: fix use-after-free in device_for_each_child() 2024-12-05 14:01:59 +01:00
iso.c Bluetooth: ISO: Send BIG Create Sync via hci_sync 2024-12-05 14:01:59 +01:00
Kconfig Bluetooth: Remove BT_HS 2024-03-06 17:22:39 -05:00
l2cap_core.c Bluetooth: L2CAP: Fix uaf in l2cap_connect 2024-09-27 10:52:18 -04:00
l2cap_sock.c Bluetooth: L2CAP: Fix deadlock 2024-06-28 14:32:02 -04:00
leds.c Bluetooth: Use led_set_brightness() in LED trigger activate() callback 2024-09-10 13:06:11 -04:00
leds.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
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.c Bluetooth: MGMT: Fix possible deadlocks 2024-12-05 14:02:35 +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 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
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: SCO: Fix UAF on sco_sock_timeout 2024-10-23 10:20:29 -04:00
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" 2024-08-30 17:56:53 -04:00
smp.h Bluetooth: use inclusive language in SMP 2021-06-26 07:12:37 +02:00