------------[ cut here ]------------
WARNING: CPU: 0 PID: 6148 at net/bluetooth/hci_conn.c:445 queue_work include/linux/workqueue.h:507 [inline]
WARNING: CPU: 0 PID: 6148 at net/bluetooth/hci_conn.c:445 schedule_work include/linux/workqueue.h:568 [inline]
WARNING: CPU: 0 PID: 6148 at net/bluetooth/hci_conn.c:445 hci_connect_le_scan_remove net/bluetooth/hci_conn.c:195 [inline]
WARNING: CPU: 0 PID: 6148 at net/bluetooth/hci_conn.c:445 hci_conn_timeout+0x1cf/0x230 net/bluetooth/hci_conn.c:460
Modules linked in:

CPU: 0 PID: 6148 Comm: kworker/u5:5 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci2 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x1cf/0x230 net/bluetooth/hci_conn.c:445
Code: ff df 48 8d 93 a0 02 00 00 48 c1 e8 03 80 3c 08 00 75 4c 48 8b 35 91 db bc 03 48 83 c4 08 bf 40 00 00 00 5b 5d e9 21 19 bf fa <0f> 0b e9 85 fe ff ff 48 89 ef e8 82 ce 1d fb e9 64 fe ff ff e8 58
RSP: 0018:ffffc90000a47d08 EFLAGS: 00010282

RAX: 00000000fffff4e6 RBX: ffff88810e33a130 RCX: ffffffff86867a5d
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88810e33a010
RBP: ffff88810e33a010 R08: 0000000000000000 R09: ffff88810e33a013
R10: ffffed1021c67402 R11: 0000000000000000 R12: ffffc90000a47db0
R13: ffff88811a225400 R14: ffff88810e33a130 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000223d708 CR3: 00000001146b3006 CR4: 00000000001706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
irq event stamp: 225967
hardirqs last  enabled at (226005): [<ffffffff877016ef>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
hardirqs last  enabled at (226005): [<ffffffff877016ef>] _raw_spin_unlock_irq+0x1f/0x80 kernel/locking/spinlock.c:199
hardirqs last disabled at (226054): [<ffffffff876f1725>] __schedule+0x1225/0x2180 kernel/sched/core.c:4972
softirqs last  enabled at (226096): [<ffffffff814103f7>] invoke_softirq kernel/softirq.c:221 [inline]
softirqs last  enabled at (226096): [<ffffffff814103f7>] __irq_exit_rcu kernel/softirq.c:422 [inline]
softirqs last  enabled at (226096): [<ffffffff814103f7>] irq_exit_rcu+0x237/0x280 kernel/softirq.c:434
softirqs last disabled at (226143): [<ffffffff814103f7>] invoke_softirq kernel/softirq.c:221 [inline]
softirqs last disabled at (226143): [<ffffffff814103f7>] __irq_exit_rcu kernel/softirq.c:422 [inline]
softirqs last disabled at (226143): [<ffffffff814103f7>] irq_exit_rcu+0x237/0x280 kernel/softirq.c:434
---[ end trace f353aa286707cad2 ]---