INFO: task kworker/u8:7:2906 blocked for more than 143 seconds. Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:7 state:D stack:24368 pid:2906 tgid:2906 ppid:2 flags:0x00004000 Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580 wg_noise_handshake_create_initiation+0x132/0xf30 drivers/net/wireguard/noise.c:530 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline] wg_packet_handshake_send_worker+0x15b/0x330 drivers/net/wireguard/send.c:51 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x870/0xd30 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 4 locks held by kworker/0:1/9: #0: ffff8880297bd148 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff8880297bd148 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900000e7d00 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ({ unsigned long __ptr; __ptr = (unsigned long) ((typeof(*((worker))) *)((worker))); (typeof((typeof(*((worker))) *)((worker)))) (__ptr + (((__per_cpu_offset[(cpu)])))); }); })->work)){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88807f0b5248 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_consume_initiation+0x156/0xf70 drivers/net/wireguard/noise.c:598 #3: ffff88805c826a58 ( &handshake->lock){++++}-{3:3}, at: wg_noise_handshake_consume_initiation+0x844/0xf70 drivers/net/wireguard/noise.c:632 3 locks held by kworker/u8:1/12: #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90000117d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90000117d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 1 lock held by kworker/R-mm_pe/13: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 4 locks held by kworker/1:0/25: 1 lock held by khungtaskd/30: #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626 3 locks held by kworker/1:1/46: 2 locks held by kworker/u8:4/61: #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900015cfd00 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 3 locks held by kworker/u8:5/134: 2 locks held by kworker/1:2/941: 1 lock held by kworker/R-dm_bu/2372: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 4 locks held by kworker/u8:7/2906: #0: ffff88805f567948 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88805f567948 ((wq_completion)wg-kex-wg0#17){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90009ae7d00 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90009ae7d00 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88807f0b5248 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0x120/0xf30 drivers/net/wireguard/noise.c:529 #3: ffff88805c826a58 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0x132/0xf30 drivers/net/wireguard/noise.c:530 4 locks held by kworker/u8:11/2963: #0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90009ce7d00 ( net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8fc7f750 (pernet_ops_rwsem){++++}-{3:3} , at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffff88807f3bd428 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x110/0x2e0 drivers/net/wireguard/device.c:249 3 locks held by kworker/u8:12/2988: #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90009e17d00 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90009e17d00 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8e7e2c08 ( wq_pool_attach_mutex){+.+.}-{3:3}, at: idle_cull_fn+0xd5/0x760 kernel/workqueue.c:2953 2 locks held by dhcpcd/4903: #0: ffffffff8fc70f08 (vlan_ioctl_mutex){+.+.}-{3:3}, at: sock_ioctl+0x664/0x8e0 net/socket.c:1303 #1: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: vlan_ioctl_handler+0x112/0x9d0 net/8021q/vlan.c:553 2 locks held by getty/4990: #0: ffff888034f2a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211 1 lock held by kworker/1:3/5235: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 4 locks held by udevd/5256: #0: ffff888024ef82f0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182 #1: ffff88807d424088 (&of->mutex#2 ){+.+.}-{3:3} , at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff888024fda1e8 (kn->active#18){.+.+}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff88806b175190 (&dev->mutex){....}-{3:3} , at: device_lock_interruptible include/linux/device.h:1014 [inline] , at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142 1 lock held by kworker/R-wg-cr/5270: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 1 lock held by kworker/R-wg-cr/5272: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 1 lock held by kworker/R-wg-cr/5282: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 1 lock held by kworker/R-wg-cr/5286: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 2 locks held by kworker/1:4/5301: 3 locks held by kworker/1:5/5302: 6 locks held by kworker/1:6/5303: 2 locks held by kworker/1:7/5305: 1 lock held by kworker/R-wg-cr/6272: 1 lock held by kworker/R-wg-cr/6273: #0: ffffffff8e7e2c08 ( wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6274: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6275: 1 lock held by kworker/R-wg-cr/6276: #0: ffffffff8e7e2c08 ( wq_pool_attach_mutex ){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] ){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6280: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6301: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6302: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6306: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 1 lock held by kworker/R-wg-cr/6328: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x31/0x390 kernel/workqueue.c:2671 1 lock held by kworker/R-wg-cr/6330: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by kworker/R-wg-cr/6331: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2729 [inline] ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xaf5/0x10a0 kernel/workqueue.c:3528 1 lock held by syz-executor/6658: #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 2 locks held by syz-executor/6661: #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 #1: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline] #1: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:958 1 lock held by syz-executor/6664: #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/6669: #0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline] (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958 1 lock held by syz-executor/6670: #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by kworker/R-bond0/6689: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-bond0/6690: #0: ffffffff8e7e2c08 ( wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-bond0/6692: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-bond0/6693: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-bond0/6699: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6713: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6715: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6716: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6717: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6718: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6719: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6720: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6721: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6722: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6723: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6724: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6725: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6726: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6728: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 1 lock held by kworker/R-wg-cr/6729: #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3318 [inline] #0: ffffffff8e7e2c08 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0x10a0 kernel/workqueue.c:3445 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 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:223 [inline] watchdog+0xff4/0x1040 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6275 Comm: kworker/R-wg-cr Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker RIP: 0010:io_serial_in+0x76/0xb0 drivers/tty/serial/8250/8250_port.c:406 Code: 80 de 52 fc 89 e9 41 d3 e6 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 81 26 ba fc 44 03 33 44 89 f2 ec <0f> b6 c0 5b 41 5e 41 5f 5d c3 cc cc cc cc 89 e9 80 e1 07 38 c1 7c RSP: 0018:ffffc90000a17318 EFLAGS: 00000002 RAX: 1ffffffff34cd100 RBX: ffffffff9a668f40 RCX: 0000000000000000 RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020 RBP: 0000000000000000 R08: ffffffff8540ae26 R09: 1ffff11004afc046 R10: dffffc0000000000 R11: ffffffff8540ade0 R12: dffffc0000000000 R13: 0000000000002694 R14: 00000000000003fd R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002005c000 CR3: 000000000e734000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_in drivers/tty/serial/8250/8250.h:137 [inline] serial_lsr_in drivers/tty/serial/8250/8250.h:159 [inline] wait_for_lsr drivers/tty/serial/8250/8250_port.c:2068 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3315 [inline] serial8250_console_write+0x1099/0x1770 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:2984 [inline] console_flush_all+0x865/0xfd0 kernel/printk/printk.c:3050 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3119 vprintk_emit+0x5dc/0x7c0 kernel/printk/printk.c:2348 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4912 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4923 _dev_warn+0x122/0x170 drivers/base/core.c:4979 usb_rx_callback_intf0+0x15a/0x1a0 drivers/media/rc/imon.c:1768 __usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650 dummy_timer+0x830/0x45a0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:ieee80211_get_mmie_keyidx+0x0/0x4c0 net/mac80211/rx.c:986 Code: e1 07 38 c1 0f 8c 2f fd ff ff 4c 89 f7 e8 e8 e9 ca f6 e9 22 fd ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff RSP: 0018:ffffc90000a183f8 EFLAGS: 00000246 RAX: 1ffff9200014314d RBX: 0000000000000000 RCX: ffff8880312bbc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff8880679aa8c0 RBP: ffffc90000a18750 R08: ffffffff8b2ea992 R09: 1ffff1100f7f51d3 R10: dffffc0000000000 R11: ffffed100f7f51d4 R12: 1ffff92000143153 R13: dffffc0000000000 R14: ffffc90000a18a68 R15: ffff88802382b050 ieee80211_rx_h_decrypt net/mac80211/rx.c:1970 [inline] ieee80211_rx_handlers+0x1c20/0xb830 net/mac80211/rx.c:4190 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4238 [inline] ieee80211_prepare_and_rx_handle+0x31ab/0x6360 net/mac80211/rx.c:5086 __ieee80211_rx_handle_packet net/mac80211/rx.c:5327 [inline] ieee80211_rx_list+0x2ce0/0x3780 net/mac80211/rx.c:5462 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5124 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:raw_spin_rq_unlock_irq+0x1b/0x90 kernel/sched/sched.h:1428 Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 48 89 fb 66 90 48 89 df e8 5e 9c 5e 0a e8 89 c5 35 00 fb 5b 41 5e <41> 5f c3 cc cc cc cc f3 0f 1e fa 49 bf 00 00 00 00 00 fc ff df 4c RSP: 0018:ffffc90004517250 EFLAGS: 00000286 RAX: c940074f1d512200 RBX: ffff8880b893e9c0 RCX: ffffffff81703fea RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: ffffffff8c608f40 RBP: ffffc90004517450 R08: ffffffff941e4937 R09: 1ffffffff283c926 R10: dffffc0000000000 R11: fffffbfff283c927 R12: ffffc900045173d0 R13: 0000000000000000 R14: ffff8880312bc370 R15: ffff8880312bbc00 __schedule+0x1a3a/0x4a60 kernel/sched/core.c:6533 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __local_bh_enable_ip+0x179/0x200 kernel/softirq.c:389 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_decrypt_worker+0x2a9/0xd80 drivers/net/wireguard/receive.c:499 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 rescuer_thread+0x63f/0x10a0 kernel/workqueue.c:3489 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored