syzbot

INFO: task syz-executor.1:23477 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00021-g2ef5971ff345 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D
 stack:24672 pid:23477 tgid:23477 ppid:5079   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
 kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
 kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:593
 device_add+0x63b/0xbf0 drivers/base/core.c:3702
 hci_register_dev+0x382/0x8b0 net/bluetooth/hci_core.c:2673
 __vhci_create_device drivers/bluetooth/hci_vhci.c:430 [inline]
 vhci_create_device+0x389/0x6d0 drivers/bluetooth/hci_vhci.c:472
 vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
 vhci_write+0x3cb/0x480 drivers/bluetooth/hci_vhci.c:609
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa72/0xc90 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643