------------[ cut here ]------------
WARNING: CPU: 1 PID: 4811 at net/bluetooth/hci_conn.c:668 hci_conn_timeout+0x1fc/0x424 net/bluetooth/hci_conn.c:668
Modules linked in:
CPU: 1 PID: 4811 Comm: kworker/u5:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Workqueue: hci4 hci_conn_timeout
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : hci_conn_timeout+0x1fc/0x424 net/bluetooth/hci_conn.c:668
lr : hci_conn_timeout+0x1fc/0x424 net/bluetooth/hci_conn.c:668
sp : ffff800021257b30
x29: ffff800021257b30 x28: ffff0000e9e1ec00 x27: ffff0000cf7aa330
x26: ffff0000c3502618 x25: 1fffe000186a04c3 x24: dfff800000000000
x23: ffff0000c4b35000 x22: dfff800000000000 x21: 00000000ffffffff
x20: ffff0000cf7aa000 x19: ffff0000cf7aa330 x18: ffff800011abbcc0
x17: ffff8000181f9000 x16: ffff800008042c8c x15: ffff800017cd9fc0
x14: ffff0000c6e80a98 x13: 0000000000000000 x12: 0000000000ff0100
x11: ff00800010b5f9f0 x10: 0000000000000000 x9 : ffff800010b5f9f0
x8 : ffff0000c6e80000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800018219b80 x4 : 0000000000000008 x3 : ffff800010b5f82c
x2 : 0000000000000000 x1 : 00000000ffffffff x0 : 0000000000000000
Call trace:
 hci_conn_timeout+0x1fc/0x424 net/bluetooth/hci_conn.c:668
 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292
 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
irq event stamp: 3072
hardirqs last  enabled at (3071): [<ffff800011a41a84>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (3071): [<ffff800011a41a84>] _raw_spin_unlock_irq+0x3c/0x90 kernel/locking/spinlock.c:202
hardirqs last disabled at (3072): [<ffff800011956080>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (954): [<ffff8000081a967c>] softirq_handle_end kernel/softirq.c:439 [inline]
softirqs last  enabled at (954): [<ffff8000081a967c>] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624
softirqs last disabled at (489): [<ffff800008020164>] __do_softirq+0x14/0x20 kernel/softirq.c:630
---[ end trace 0000000000000000 ]---
Bluetooth: hci3: command 0x0406 tx timeout