Bluetooth: hci2: link tx timeout
Bluetooth: hci2: killing stalled connection 10:aa:aa:aa:aa:aa
Bluetooth: hci2: link tx timeout
Bluetooth: hci2: killing stalled connection 11: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: 284, name: kworker/u5:1
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u5:1/284:
 #0: ffff88800fdca138 ((wq_completion)hci2#2){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
 #1: ffff8880411efd90 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
 #2: ffffffff8560b8c0 (rcu_read_lock){....}-{1:2}, at: __check_timeout+0x171/0x480
CPU: 1 PID: 284 Comm: kworker/u5:1 Not tainted 6.5.0-rc1-next-20230714 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci2 hci_tx_work
Call Trace:
 <TASK>
 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+0x7cb/0x1a70
 process_one_work+0xabf/0x1770
 worker_thread+0x64f/0x12a0
 kthread+0x33f/0x440
 ret_from_fork+0x2f/0x70
 ret_from_fork_asm+0x1b/0x30
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

=============================
[ BUG: Invalid wait context ]
6.5.0-rc1-next-20230714 #1 Tainted: G        W         
-----------------------------
kworker/u5:1/284 is trying to lock:
ffff8880374989b0 (&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/u5:1/284:
 #0: ffff88800fdca138 ((wq_completion)hci2#2){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
 #1: ffff8880411efd90 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
 #2: ffffffff8560b8c0 (rcu_read_lock){....}-{1:2}, at: __check_timeout+0x171/0x480
stack backtrace:
CPU: 1 PID: 284 Comm: kworker/u5:1 Tainted: G        W          6.5.0-rc1-next-20230714 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci2 hci_tx_work
Call Trace:
 <TASK>
 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+0x7cb/0x1a70
 process_one_work+0xabf/0x1770
 worker_thread+0x64f/0x12a0
 kthread+0x33f/0x440
 ret_from_fork+0x2f/0x70
 ret_from_fork_asm+0x1b/0x30
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
syz-executor.7: attempt to access beyond end of device
loop7: rw=2051, sector=24, nr_sectors = 104 limit=40
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4909 Comm: syz-executor.2 Tainted: G        W          6.5.0-rc1-next-20230714 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xc1/0xf0
 should_fail_ex+0x4b4/0x5b0
 should_failslab+0x9/0x20
 __kmem_cache_alloc_node+0x66/0x310
 __kmalloc_node+0x4d/0x160
 kvmalloc_node+0xaa/0x200
 proc_sys_call_handler+0x374/0x6a0
 do_iter_readv_writev+0x217/0x3c0
 do_iter_write+0x186/0x820
 vfs_iter_write+0x7a/0xb0
 iter_file_splice_write+0x737/0xcb0
 direct_splice_actor+0x119/0x180
 splice_direct_to_actor+0x349/0x9d0
 do_splice_direct+0x1bb/0x290
 do_sendfile+0xb67/0x1300
 __x64_sys_sendfile64+0x1d5/0x210
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f3a3bd24b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3a3929a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f3a3be37f60 RCX: 00007f3a3bd24b19
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00007f3a3929a1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffda7e8b06f R14: 00007f3a3929a300 R15: 0000000000022000
 </TASK>
Bluetooth: hci2: command 0x0406 tx timeout