BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 176s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=9/256 refcnt=10 pending: nsim_dev_hwstats_traffic_work, nsim_dev_trap_report_work, rht_deferred_worker, pcpu_balance_workfn, vmstat_shepherd, rht_deferred_worker, psi_avgs_work, ovs_dp_masks_rebalance, kfree_rcu_monitor workqueue events_long: flags=0x0 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 pending: 2*defense_work_handler workqueue events_unbound: flags=0x2 pwq 4: cpus=0-1 flags=0x4 nice=0 active=4/512 refcnt=7 in-flight: 56:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn, 46:fsnotify_connector_destroy_workfn fsnotify_connector_destroy_workfn 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_managed_work, neigh_periodic_work, do_cache_clean, gc_worker workqueue rcu_gp: flags=0x8 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: srcu_invoke_callbacks workqueue mm_percpu_wq: flags=0x8 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: 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: 9: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 mld: flags=0x40008 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=6 pending: mld_dad_work inactive: 4*mld_dad_work workqueue ipv6_addrconf: flags=0x40008 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=24 pending: addrconf_dad_work inactive: 21*addrconf_dad_work, addrconf_verify_work workqueue bat_events: flags=0xe000a 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-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=176s workers=6 idle: 7 5164 898 5165 5163 pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=6 idle: 10 12 41 NMI backtrace for cpu 0 CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.2.0-rc4-next-20230116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: usb_hub_wq hub_event RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:200 Code: 66 d1 87 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be a8 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 8b 05 1d e4 81 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffffc900000e6aa0 EFLAGS: 00000213 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8750bfa2 RDX: ffff88813fe50000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff888028f35600 R08: 0000000000000005 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000000 R12: ffff888028f35600 R13: ffff888074e00000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000a90008 CR3: 000000001e025000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hid_apply_multiplier drivers/hid/hid-core.c:1119 [inline] hid_setup_resolution_multiplier+0x3bc/0xaa0 drivers/hid/hid-core.c:1175 hid_open_report+0x446/0x650 drivers/hid/hid-core.c:1287 hid_parse include/linux/hid.h:1099 [inline] ms_probe+0x131/0x4c0 drivers/hid/hid-microsoft.c:385 hid_device_probe+0x29a/0x3c0 drivers/hid/hid-core.c:2616 call_driver_probe drivers/base/dd.c:558 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:637 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:776 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:806 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:934 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:386 __device_attach+0x1e4/0x530 drivers/base/dd.c:1006 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:446 device_add+0xbd9/0x1ed0 drivers/base/core.c:3437 hid_add_device+0x377/0xa20 drivers/hid/hid-core.c:2768 usbhid_probe+0xbae/0x1030 drivers/hid/usbhid/hid-core.c:1424 usb_probe_interface+0x30f/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:558 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:637 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:776 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:806 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:934 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:386 __device_attach+0x1e4/0x530 drivers/base/dd.c:1006 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:446 device_add+0xbd9/0x1ed0 drivers/base/core.c:3437 usb_set_configuration+0x101d/0x1900 drivers/usb/core/message.c:2171 usb_generic_driver_probe+0xbe/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:558 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:637 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:776 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:806 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:934 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:386 __device_attach+0x1e4/0x530 drivers/base/dd.c:1006 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:446 device_add+0xbd9/0x1ed0 drivers/base/core.c:3437 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573 hub_port_connect drivers/usb/core/hub.c:5405 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x2d75/0x4840 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1750 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 ---------------- Code disassembly (best guess): 0: 66 d1 87 02 66 0f 1f rolw 0x1f0f6602(%rdi) 7: 44 00 00 add %r8b,(%rax) a: f3 0f 1e fa endbr64 e: 48 8b be a8 01 00 00 mov 0x1a8(%rsi),%rdi 15: e8 b0 ff ff ff callq 0xffffffca 1a: 31 c0 xor %eax,%eax 1c: c3 retq 1d: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 24: 00 00 00 00 28: 66 90 xchg %ax,%ax * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 65 8b 05 1d e4 81 7e mov %gs:0x7e81e41d(%rip),%eax # 0x7e81e452 35: 89 c1 mov %eax,%ecx 37: 48 8b 34 24 mov (%rsp),%rsi 3b: 81 .byte 0x81 3c: e1 00 loope 0x3e 3e: 01 00 add %eax,(%rax)