INFO: task kworker/1:0:22 blocked for more than 145 seconds. Not tainted 6.4.0-syzkaller-12155-ga452483508d7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:24632 pid:22 ppid:2 flags:0x00004000 Workqueue: events_power_efficient reg_check_chans_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1873/0x48f0 kernel/sched/core.c:6710 schedule+0xc3/0x180 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 wiphy_lock include/net/cfg80211.h:5773 [inline] reg_leave_invalid_chans net/wireless/reg.c:2450 [inline] reg_check_chans_work+0x108/0xda0 net/wireless/reg.c:2465 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597 worker_thread+0xa63/0x1210 kernel/workqueue.c:2748 kthread+0x2b8/0x350 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Showing all locks held in the system: 4 locks held by kworker/0:1/9: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8d328af0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffffffff8d328eb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522 4 locks held by kworker/1:0/22: #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569 #1: ffffc900001c7d20 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571 #2: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x91/0xda0 net/wireless/reg.c:2462 #3: ffff88804fe10768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5773 [inline] #3: ffff88804fe10768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_leave_invalid_chans net/wireless/reg.c:2450 [inline] #3: ffff88804fe10768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_check_chans_work+0x108/0xda0 net/wireless/reg.c:2465 1 lock held by khungtaskd/28: #0: ffffffff8d328920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 3 locks held by kworker/0:2/918: #0: ffff8880286c2538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569 #1: ffffc900057efd20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571 #2: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4630 2 locks held by getty/4770: #0: ffff8880293ee098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2187 3 locks held by kworker/1:6/5085: #0: ffff8880286c2538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569 #1: ffffc90005347d20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571 #2: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4630 3 locks held by kworker/0:4/5086: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569 #1: ffffc90005357d20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571 #2: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75 4 locks held by kworker/0:5/5087: 4 locks held by kworker/0:6/5091: 3 locks held by kworker/0:8/5128: 4 locks held by kworker/0:9/5516: 1 lock held by syz-executor.5/6377: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.5/6381: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.5/6390: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.5/6393: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.5/6395: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.5/6398: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.4/6386: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.4/6403: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.4/6407: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.4/6411: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.4/6412: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.0/6423: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.0/6426: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.2/6422: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.2/6424: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.1/6436: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.1/6437: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.1/6438: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.1/6440: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.1/6441: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.1/6442: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.3/6446: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.3/6447: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x6e4/0x1300 net/core/dev_ioctl.c:604 1 lock held by syz-executor.3/6448: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.3/6450: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.3/6451: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1074 1 lock held by syz-executor.3/6452: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: packet_mc_add+0x28/0x950 net/packet/af_packet.c:3666 1 lock held by syz-executor.4/6456: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.5/6457: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.3/6467: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 7 locks held by kworker/0:13/6472: 1 lock held by syz-executor.0/6473: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.2/6474: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.1/6478: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.4/6485: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.5/6486: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 2 locks held by kworker/0:15/6494: 1 lock held by syz-executor.0/6499: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.3/6504: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.2/6505: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.1/6511: #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e4b9608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6421 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-12155-ga452483508d7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xec2/0xf00 kernel/hung_task.c:379 kthread+0x2b8/0x350 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5080 Comm: kworker/0:3 Not tainted 6.4.0-syzkaller-12155-ga452483508d7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: wg-crypt-wg1 wg_packet_decrypt_worker RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:100 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x45b/0x2390 arch/x86/kernel/unwind_orc.c:494 Code: dc 0e 49 be 00 00 00 00 00 fc ff df 0f 85 b7 00 00 00 e9 be 01 00 00 4d 89 f4 4d 89 f5 48 89 e8 4c 29 e8 48 89 c1 48 c1 f9 02 <48> c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 5c 45 00 48 89 d8 48 c1 e8 RSP: 0018:ffffc90000006810 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff8eaa23ac RCX: 0000000000000000 RDX: ffffffff8f18a7c8 RSI: 00000000000a0001 RDI: 0000000000000001 RBP: ffffffff8eaa23b0 R08: 000000000000000c R09: ffffc900000069d0 R10: ffffc90000006930 R11: fffff52000000d28 R12: ffffffff8eaa23ac R13: ffffffff8eaa23b0 R14: ffffffff8eaa23ac R15: ffffffff8179f726 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2db33000 CR3: 000000000d130000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122 save_stack+0xfa/0x1e0 mm/page_owner.c:128 __set_page_owner+0x29/0x380 mm/page_owner.c:192 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1570 prep_new_page mm/page_alloc.c:1577 [inline] get_page_from_freelist+0x31e8/0x3370 mm/page_alloc.c:3221 __alloc_pages+0x255/0x670 mm/page_alloc.c:4477 alloc_slab_page+0x6a/0x160 mm/slub.c:1862 allocate_slab mm/slub.c:2009 [inline] new_slab+0x84/0x2f0 mm/slub.c:2062 ___slab_alloc+0xade/0x1100 mm/slub.c:3215 __slab_alloc mm/slub.c:3314 [inline] __slab_alloc_node mm/slub.c:3367 [inline] slab_alloc_node mm/slub.c:3460 [inline] slab_alloc mm/slub.c:3478 [inline] __kmem_cache_alloc_lru mm/slub.c:3485 [inline] kmem_cache_alloc+0x1bf/0x300 mm/slub.c:3494 skb_clone+0x1e9/0x370 net/core/skbuff.c:1860 deliver_clone net/bridge/br_forward.c:125 [inline] maybe_deliver+0x96/0x160 net/bridge/br_forward.c:189 br_flood+0x2e4/0x660 net/bridge/br_forward.c:235 br_handle_frame_finish+0x1930/0x2010 net/bridge/br_input.c:210 br_nf_hook_thresh+0x46e/0x580 net/bridge/br_netfilter_hooks.c:1048 br_nf_pre_routing_finish_ipv6+0x9cf/0xcb0 NF_HOOK include/linux/netfilter.h:303 [inline] br_nf_pre_routing_ipv6+0x361/0x720 net/bridge/br_netfilter_ipv6.c:178 nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline] nf_hook_bridge_pre net/bridge/br_input.c:272 [inline] br_handle_frame+0x9e6/0x1490 net/bridge/br_input.c:417 __netif_receive_skb_core+0x13a0/0x40e0 net/core/dev.c:5346 __netif_receive_skb_one_core net/core/dev.c:5450 [inline] __netif_receive_skb+0x120/0x530 net/core/dev.c:5566 process_backlog+0x34b/0x710 net/core/dev.c:5894 __napi_poll+0xc7/0x470 net/core/dev.c:6460 napi_poll net/core/dev.c:6527 [inline] net_rx_action+0x78b/0x1010 net/core/dev.c:6660 __do_softirq+0x2ab/0x908 kernel/softirq.c:553 do_softirq+0x11b/0x1e0 kernel/softirq.c:454 __local_bh_enable_ip+0x1b5/0x1f0 kernel/softirq.c:381 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_decrypt_worker+0x2a6/0xde0 drivers/net/wireguard/receive.c:499 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597 worker_thread+0xa63/0x1210 kernel/workqueue.c:2748 kthread+0x2b8/0x350 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308