Bluetooth: hci6: link tx timeout
Bluetooth: hci6: killing stalled connection 10:aa:aa:aa:aa:aa
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 277, name: kworker/u5:0
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u5:0/277:
#0: ffff88801a5a3138 ((wq_completion)hci6#2){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff88803e5bfdb0 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
#2: ffffffff8560b6c0 (rcu_read_lock){....}-{1:2}, at: __check_timeout+0x171/0x480
CPU: 1 PID: 277 Comm: kworker/u5:0 Not tainted 6.4.0-next-20230704 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci6 hci_tx_work
Call Trace:
dump_stack_lvl+0xc1/0xf0
__might_resched+0x2f9/0x510
__mutex_lock+0x9e/0x1a30
hci_cmd_sync_submit+0x3b/0x2d0
hci_cmd_sync_queue+0x7b/0xb0
hci_disconnect+0x1c2/0x450
__check_timeout+0x2cc/0x480
hci_tx_work+0x11b1/0x1a70
process_one_work+0xabf/0x1770
worker_thread+0x64f/0x12a0
kthread+0x33f/0x440
ret_from_fork+0x2c/0x50
=============================
[ BUG: Invalid wait context ]
6.4.0-next-20230704 #1 Tainted: G W
-----------------------------
kworker/u5:0/277 is trying to lock:
ffff88801fae49b0 (&hdev->unregister_lock){+.+.}-{3:3}, at: hci_cmd_sync_submit+0x3b/0x2d0
other info that might help us debug this:
context-{4:4}
3 locks held by kworker/u5:0/277:
#0: ffff88801a5a3138 ((wq_completion)hci6#2){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff88803e5bfdb0 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
#2: ffffffff8560b6c0 (rcu_read_lock){....}-{1:2}, at: __check_timeout+0x171/0x480
stack backtrace:
CPU: 1 PID: 277 Comm: kworker/u5:0 Tainted: G W 6.4.0-next-20230704 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci6 hci_tx_work
Call Trace:
dump_stack_lvl+0x91/0xf0
__lock_acquire+0x1605/0x6340
lock_acquire+0x19a/0x4c0
__mutex_lock+0x12a/0x1a30
hci_cmd_sync_submit+0x3b/0x2d0
hci_cmd_sync_queue+0x7b/0xb0
hci_disconnect+0x1c2/0x450
__check_timeout+0x2cc/0x480
hci_tx_work+0x11b1/0x1a70
process_one_work+0xabf/0x1770
worker_thread+0x64f/0x12a0
kthread+0x33f/0x440
ret_from_fork+0x2c/0x50
audit: type=1400 audit(1688516918.844:12): avc: denied { read } for pid=4131 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
Bluetooth: hci6: command 0x0406 tx timeout
loop6: detected capacity change from 0 to 264192
FAT-fs (loop6): Unrecognized mount option "" or missing value
audit: type=1400 audit(1688516927.561:13): avc: denied { associate } for pid=4145 comm="syz-executor.6" name="file1" scontext=system_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=filesystem permissive=1
Process accounting resumed
9pnet_fd: Insufficient options for proto=fd
loop6: detected capacity change from 0 to 264192
FAT-fs (loop6): Unrecognized mount option "" or missing value
Process accounting resumed
loop6: detected capacity change from 0 to 264192
FAT-fs (loop6): Unrecognized mount option "" or missing value
Process accounting resumed