BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 149s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    in-flight: 4446:xfrm_state_gc_task xfrm_state_gc_task
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=55/256 refcnt=56
    pending: free_work, kfree_rcu_work, pwq_unbound_release_workfn, macvlan_process_broadcast, kfree_rcu_monitor, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, pwq_unbound_release_workfn, destroy_super_work, bpf_map_free_deferred, bpf_map_free_deferred, vmstat_shepherd, jump_label_update_timeout, psi_avgs_work, yama_relation_cleanup, macvlan_process_broadcast, macvlan_process_broadcast, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, macvlan_process_broadcast, l2cap_info_timeout, hci_cmd_timeout, psi_avgs_work, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, l2cap_info_timeout, key_garbage_collector, macvlan_process_broadcast, macvlan_process_broadcast, hci_cmd_timeout, hci_cmd_timeout, hci_cmd_timeout, macvlan_process_broadcast, macvlan_process_broadcast, l2cap_info_timeout, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, hci_cmd_timeout, l2cap_info_timeout, rfkill_sync_work
, rfkill_global_led_trigger_worker, l2cap_info_timeout, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, l2cap_info_timeout, hci_cmd_timeout, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, hci_cmd_timeout
workqueue events_long: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: defense_work_handler, defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=6/512 refcnt=9
    in-flight: 4346:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn, 5391:fsnotify_connector_destroy_workfn fsnotify_connector_destroy_workfn, 4307:cfg80211_wiphy_work cfg80211_wiphy_work
workqueue events_freezable: flags=0x4
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: update_balloon_stats_func
workqueue events_power_efficient: flags=0x80
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=5/256 refcnt=6
    pending: wg_ratelimiter_gc_entries, neigh_periodic_work, neigh_periodic_work, do_cache_clean, reg_check_chans_work
workqueue rcu_gp: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: process_srcu, wait_rcu_exp_gp
workqueue mm_percpu_wq: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=4
    pending: lru_add_drain_per_cpu BAR(5581), vmstat_update
workqueue usb_hub_wq: flags=0x4
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    in-flight: 4584:hub_event hub_event
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work
workqueue krxrpcd: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=4
    pending: rxrpc_peer_keepalive_worker
    inactive: rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker
workqueue wg-kex-wg0: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg0: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x24
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x28
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: wg_packet_tx_worker, wg_packet_encrypt_worker
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=150s workers=21 idle: 4582 1111 4587 4237 7 4581 4585 4580 13 4589 4212 4286 4238 4269 4240 4239 4588 4280 4313 4241
pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=22 idle: 5364 4849 4448 1108 4852 4283 21 4451 4848 4242 4438 23 4195 5221 4441 4445 4447 4851 4403 4452 4450
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=14 idle: 1285 4319 4318 9 144 727 1269 4285 154 4282
NMI backtrace for cpu 0
CPU: 0 PID: 4584 Comm: kworker/0:16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:__snd_usb_parse_audio_interface+0x3637/0x4b00 sound/usb/stream.c:-1
Code: a9 f9 4c 89 b4 24 88 00 00 00 44 89 f7 44 8b 74 24 38 44 89 f6 e8 39 58 a9 f9 bf 03 00 00 00 44 89 fe 44 89 f3 e8 29 5a a9 f9 <48> 8b 84 24 a0 00 00 00 29 84 24 d8 00 00 00 4c 8b 74 24 50 0f 8e
RSP: 0018:ffffc90002376b40 EFLAGS: 00000297
RAX: ffffffff87cfdf47 RBX: 0000000000000001 RCX: ffff88802676bb80
RDX: 0000000000000002 RSI: 00000000000007fb RDI: 0000000000000003
RBP: ffffc90002376d40 R08: ffffffff901d6227 R09: 1ffffffff203ac44
R10: dffffc0000000000 R11: fffffbfff203ac45 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 00000000000007fb
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055dba8678000 CR3: 000000007de30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 snd_usb_parse_audio_interface+0x36/0xb0 sound/usb/stream.c:1274
 snd_usb_create_stream+0x3ec/0x610 sound/usb/card.c:209
 snd_usb_create_streams sound/usb/card.c:330 [inline]
 usb_audio_probe+0x130b/0x1d90 sound/usb/card.c:892
 usb_probe_interface+0x5c5/0xb20 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a8/0x480 drivers/base/dd.c:979
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa00/0xfb0 drivers/base/core.c:3412
 usb_set_configuration+0x1991/0x1fd0 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x139/0x270 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a8/0x480 drivers/base/dd.c:979
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa00/0xfb0 drivers/base/core.c:3412
 usb_new_device+0xd65/0x1660 drivers/usb/core/hub.c:2632
 hub_port_connect drivers/usb/core/hub.c:5497 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
 port_event drivers/usb/core/hub.c:5799 [inline]
 hub_event+0x2e4a/0x55e0 drivers/usb/core/hub.c:5881
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
----------------
Code disassembly (best guess):
   0:	a9 f9 4c 89 b4       	test   $0xb4894cf9,%eax
   5:	24 88                	and    $0x88,%al
   7:	00 00                	add    %al,(%rax)
   9:	00 44 89 f7          	add    %al,-0x9(%rcx,%rcx,4)
   d:	44 8b 74 24 38       	mov    0x38(%rsp),%r14d
  12:	44 89 f6             	mov    %r14d,%esi
  15:	e8 39 58 a9 f9       	call   0xf9a95853
  1a:	bf 03 00 00 00       	mov    $0x3,%edi
  1f:	44 89 fe             	mov    %r15d,%esi
  22:	44 89 f3             	mov    %r14d,%ebx
  25:	e8 29 5a a9 f9       	call   0xf9a95a53
* 2a:	48 8b 84 24 a0 00 00 	mov    0xa0(%rsp),%rax <-- trapping instruction
  31:	00
  32:	29 84 24 d8 00 00 00 	sub    %eax,0xd8(%rsp)
  39:	4c 8b 74 24 50       	mov    0x50(%rsp),%r14
  3e:	0f                   	.byte 0xf
  3f:	8e                   	.byte 0x8e