INFO: task kworker/1:1:30508 blocked for more than 143 seconds. Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:29936 pid:30508 tgid:30508 ppid:2 task_flags:0x208040 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5378 [inline] __schedule+0x190e/0x4c90 kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6857 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914 kthread+0x2b8/0x920 kernel/kthread.c:452 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 1 lock held by init/1: 2 locks held by kworker/R-mm_pe/13: 3 locks held by kworker/1:0H/26: 1 lock held by khungtaskd/30: #0: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6746 5 locks held by kworker/u9:0/54: #0: ffff888072367148 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff888072367148 ((wq_completion)hci2){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc90000bf7c60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc90000bf7c60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffff8880120e4d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331 #3: ffff8880120e4078 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x9ee/0x1340 net/bluetooth/hci_sync.c:5569 #4: ffff88807e827338 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x71/0x690 net/bluetooth/l2cap_core.c:1761 1 lock held by kworker/R-krxrp/3376: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 3 locks held by kworker/u8:9/3562: #0: ffff88814dea9948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff88814dea9948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc9000d227c60 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc9000d227c60 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #2: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x10e/0x16a0 net/ipv6/addrconf.c:4190 2 locks held by getty/5588: #0: ffff888030d5d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x616/0x1770 drivers/tty/n_tty.c:2211 2 locks held by kworker/1:4/5901: 3 locks held by kworker/1:5/5903: 2 locks held by kworker/1:7/5971: 2 locks held by kworker/1:8/5998: 4 locks held by kworker/1:9/8858: 5 locks held by kworker/u9:1/16521: #0: ffff88807eec6148 ((wq_completion)hci1){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff88807eec6148 ((wq_completion)hci1){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc90003a8fc60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc90003a8fc60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffff88807ba94d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331 #3: ffff88807ba94078 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x9ee/0x1340 net/bluetooth/hci_sync.c:5569 #4: ffff8880909d6b38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x71/0x690 net/bluetooth/l2cap_core.c:1761 3 locks held by kworker/0:7/16773: #0: ffff88801b078d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff88801b078d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc90003dd7c60 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc90003dd7c60 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 1 lock held by kworker/1:0/17767: 1 lock held by kworker/R-wg-cr/25873: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/25876: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/25878: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 3 locks held by kworker/u9:2/27540: #0: ffff88806df0a948 ((wq_completion)hci19){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff88806df0a948 ((wq_completion)hci19){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc9000ca3fc60 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc9000ca3fc60 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffff888061034d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_open net/bluetooth/hci_core.c:409 [inline] #2: ffff888061034d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_power_on+0x1bf/0x6b0 net/bluetooth/hci_core.c:940 2 locks held by kworker/u8:4/28391: 1 lock held by kworker/R-wg-cr/29325: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xa21/0xf90 kernel/workqueue.c:3529 2 locks held by kworker/R-wg-cr/29326: 2 locks held by kworker/R-wg-cr/29421: 1 lock held by kworker/R-wg-cr/29426: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xa21/0xf90 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/29427: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xa21/0xf90 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/29728: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/29772: 3 locks held by kworker/R-wg-cr/29773: 1 lock held by kworker/R-wg-cr/29960: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/29964: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xa21/0xf90 kernel/workqueue.c:3529 3 locks held by kworker/0:0/30215: #0: ffff88801b079d48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff88801b079d48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc900052d7c60 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc900052d7c60 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0x99/0xfb0 net/wireless/reg.c:2481 2 locks held by kworker/R-wg-cr/30569: 2 locks held by kworker/R-wg-cr/30570: 1 lock held by kworker/R-wg-cr/30571: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xa21/0xf90 kernel/workqueue.c:3529 3 locks held by syz-executor/30573: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc55/0x1d30 net/core/rtnetlink.c:4021 #1: ffff88806b7294e8 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_open+0x22d/0x420 drivers/net/wireguard/device.c:50 #2: ffffffff8eb3e7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:334 [inline] #2: ffffffff8eb3e7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x820 kernel/rcu/tree_exp.h:996 1 lock held by syz-executor/30580: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30605: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet6_rtm_newaddr+0x7bf/0xf10 net/ipv6/addrconf.c:5023 1 lock held by kworker/R-wg-cr/30607: 1 lock held by kworker/R-wg-cr/30614: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xa21/0xf90 kernel/workqueue.c:3529 1 lock held by syz-executor/30620: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 2 locks held by syz.0.5946/30675: 1 lock held by syz.3.5958/30680: #0: ffffffff8eb3e7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:302 [inline] #0: ffffffff8eb3e7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x820 kernel/rcu/tree_exp.h:996 2 locks held by vhost-30681/30682: #0: ffff888081668ce8 (&vtsk->exit_mutex){+.+.}-{4:4}, at: vhost_task_fn+0x2f3/0x3f0 kernel/vhost_task.c:54 #1: ffff88806f45d578 (&worker->mutex){+.+.}-{4:4}, at: vhost_worker_killed+0x57/0x390 drivers/vhost/vhost.c:423 5 locks held by kworker/u9:3/30685: #0: ffff888052111948 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff888052111948 ((wq_completion)hci3){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc900052efc60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc900052efc60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffff88807e2c4d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331 #3: ffff88807e2c4078 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x9ee/0x1340 net/bluetooth/hci_sync.c:5569 #4: ffff888033e9ab38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x71/0x690 net/bluetooth/l2cap_core.c:1761 3 locks held by kworker/u9:4/30687: #0: ffff888065ba5148 ((wq_completion)hci21){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff888065ba5148 ((wq_completion)hci21){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319 #1: ffffc90005357c60 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc90005357c60 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319 #2: ffff88807a614d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_open net/bluetooth/hci_core.c:409 [inline] #2: ffff88807a614d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_power_on+0x1bf/0x6b0 net/bluetooth/hci_core.c:940 1 lock held by syz-executor/30688: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30691: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30694: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30697: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30700: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30703: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30708: #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline] #0: ffffffff8fed5a88 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x47e/0x1bc0 net/ipv4/devinet.c:987 1 lock held by syz-executor/30710: #0: ffff888061034d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_open net/bluetooth/hci_core.c:409 [inline] #0: ffff888061034d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_open+0x1f4/0x300 net/bluetooth/hci_core.c:467 1 lock held by kworker/u9:5/30711: #0: ffffffff8e9e45e8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2678 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline] watchdog+0x1058/0x10a0 kernel/hung_task.c:399 kthread+0x7ab/0x920 kernel/kthread.c:464 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30607 Comm: kworker/R-wg-cr Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: wg-crypt-wg0 wg_packet_tx_worker RIP: 0010:hlock_class kernel/locking/lockdep.c:230 [inline] RIP: 0010:mark_lock+0xa2/0x360 kernel/locking/lockdep.c:4729 Code: 00 8b 1b 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 40 98 54 94 be 08 00 00 00 e8 76 d1 8b 00 48 0f a3 1d 3e 5d b7 12 <73> 10 48 69 c3 c8 00 00 00 48 8d 98 00 17 ec 93 eb 68 48 c7 c0 80 RSP: 0018:ffffc90000a18468 EFLAGS: 00000057 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff819d3afa RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff94549840 RBP: 0000000000000004 R08: ffffffff94549847 R09: 1ffffffff28a9308 R10: dffffc0000000000 R11: fffffbfff28a9309 R12: ffff88807f3864d4 R13: dffffc0000000000 R14: 0000000000000010 R15: ffff88807f386568 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c46dc83 CR3: 0000000043398000 CR4: 0000000000350ef0 Call Trace: __lock_acquire+0xc02/0x2100 kernel/locking/lockdep.c:5182 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 __debug_check_no_obj_freed lib/debugobjects.c:1088 [inline] debug_check_no_obj_freed+0x234/0x580 lib/debugobjects.c:1129 slab_free_hook mm/slub.c:2284 [inline] slab_free mm/slub.c:4609 [inline] kfree+0x115/0x430 mm/slub.c:4757 dummy_timer+0x7e7/0x4640 drivers/usb/gadget/udc/dummy_hcd.c:1988 __run_hrtimer kernel/time/hrtimer.c:1801 [inline] __hrtimer_run_queues+0x59d/0xd30 kernel/time/hrtimer.c:1865 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1882 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:19 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:147 [inline] RIP: 0010:preempt_schedule_irq+0x101/0x1c0 kernel/sched/core.c:7088 Code: 08 00 00 00 0f 84 8b 00 00 00 bf 01 00 00 00 e8 c5 be 85 f5 e8 10 e9 bf f5 fb bf 01 00 00 00 e8 25 ab ff ff 43 80 7c 3d 00 00 <74> 08 4c 89 f7 e8 25 58 1f f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 RSP: 0018:ffffc9000397f8c0 EFLAGS: 00000246 RAX: fbfbdb1b0a671300 RBX: 1ffff9200072ff20 RCX: 1ffff9200072fef4 RDX: dffffc0000000000 RSI: ffffffff8c2ab2a0 RDI: ffffffff8c80fea0 RBP: ffffc9000397f970 R08: ffffffff94549947 R09: 1ffffffff28a9328 R10: dffffc0000000000 R11: fffffbfff28a9329 R12: 1ffff9200072ff18 R13: 1ffff9200072ff1c R14: ffffc9000397f8e0 R15: dffffc0000000000 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:wg_prev_queue_peek drivers/net/wireguard/queueing.h:145 [inline] RIP: 0010:wg_packet_tx_worker+0x91/0x810 drivers/net/wireguard/send.c:269 Code: b8 8c be 1b 01 00 00 31 d2 e8 bb 48 e3 fa 2e 2e 2e 31 c0 48 8b 44 24 18 42 80 3c 20 00 74 08 4c 89 f7 e8 d2 2e 7b fb 49 8b 2e <48> 85 ed 74 07 e8 75 f3 13 fb eb 32 48 8b 7c 24 30 e8 29 d6 ff ff RSP: 0018:ffffc9000397fa30 EFLAGS: 00000246 RAX: 1ffff1100a983003 RBX: ffff8880605d2718 RCX: ffff88807f385a00 RDX: 0000000000000000 RSI: ffffffff8c80fe80 RDI: ffff888054c183f8 RBP: 0000000000000000 R08: ffffffff818a8375 R09: 1ffffffff2079eae R10: dffffc0000000000 R11: ffffffff86addaa0 R12: dffffc0000000000 R13: ffff888054c180c8 R14: ffff888054c18018 R15: ffff888054c18000 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xac0/0x18e0 kernel/workqueue.c:3319 rescuer_thread+0x650/0xf90 kernel/workqueue.c:3496 kthread+0x7ab/0x920 kernel/kthread.c:464 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244