INFO: task kworker/0:4:5898 blocked for more than 146 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4     state:D stack:19440 pid:5898  tgid:5898  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient reg_check_chans_work
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 reg_check_chans_work+0x170/0xf40
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:1/10:
3 locks held by kworker/1:0/24:
 #0: ffff88801ac75948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900001c7ba0 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f73f388 (rtnl_mutex){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20
1 lock held by khungtaskd/34:
 #0: ffffffff8e33d320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by kswapd0/91:
1 lock held by kswapd1/92:
4 locks held by kworker/1:2/794:
 #0: ffff8881231ba148 ((wq_completion)wg-kex-wg1#4){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000479fba0 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ({ unsigned long __ptr; __ptr = (unsigned long) ((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))); (typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker))))) (__ptr + (((__per_cpu_offset[(cpu)])))); }); })->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88810f6c1348 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x150/0x900
 #3: ffff88803096a0f0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x4bf/0x900
6 locks held by kworker/u9:6/1093:
7 locks held by kworker/u9:9/1186:
1 lock held by syslogd/5278:
 #0: ffffffff8ea530b0 (tomoyo_ss){.+.+}-{0:0}, at: tomoyo_path_perm+0x1e3/0x4b0
4 locks held by udevd/5296:
 #0: ffff888026fea540 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb7/0xe20
 #1: ffff88802a121088 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x5c/0x420
 #2: ffff888108439b48 (kn->active#5){.+.+}-{0:0}, at: kernfs_seq_start+0xb2/0x420
 #3: ffffffff8e445260 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim+0xb8/0x300
1 lock held by dhcpcd/5592:
 #0: ffffffff8f73f388 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newroute+0x109/0x210
2 locks held by getty/5673:
 #0: ffff888106a1c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by syz-executor/5842:
 #0: ffffffff8f73f388 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
1 lock held by udevd/5849:
 #0: ffffffff8ea530b0 (tomoyo_ss){.+.+}-{0:0}, at: tomoyo_check_open_permission+0x16a/0x3b0
3 locks held by kworker/u8:3/5876:
 #0: ffff88802a378148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900033bfba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f73f388 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30
1 lock held by syz.0.84/6237:
 #0: ffffffff8f73f388 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
1 lock held by syz-executor/6767:
 #0: ffffffff8f73f388 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
2 locks held by syz-executor/6903:
 #0: ffff88810faf0ca0 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x211/0x4d0
 #1: ffffffff8e445260 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim+0xb8/0x300
2 locks held by kworker/0:7/6905:
4 locks held by kworker/0:8/6908:
2 locks held by syz-executor/6910:
 #0: ffff88810f9cd288 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1a3/0x450
 #1: ffffffff8e445260 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim+0xb8/0x300
3 locks held by syz-executor/6912:

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf60/0xfa0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__list_del_entry_valid_or_report+0xbe/0x190
Code: 1f 0f 85 92 00 00 00 4d 8d 7e 08 4d 89 fc 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 ff e8 db c3 4e fd 49 39 1f 0f 85 9e 00 00 00 <b0> 01 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc cc 48 c7 c7 80 dd
RSP: 0018:ffffc900000068a0 EFLAGS: 00000046
RAX: 1ffffd4000899531 RBX: ffffea00044ca988 RCX: 0000000000000000
RDX: 0000000000000017 RSI: 00000000001132a6 RDI: ffffea00044ca990
RBP: 0000000000000001 R08: dffffc0000000000 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000000d00 R12: 1ffffd4000830d52
R13: dffffc0000000000 R14: ffffea0004186a88 R15: ffffea0004186a90
FS:  0000000000000000(0000) GS:ffff8880b83fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7b63d2060 CR3: 000000010d290000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __del_page_from_free_list+0xb2/0x510
 __rmqueue_pcplist+0x110d/0x1df0
 get_page_from_freelist+0x91f/0x2440
 __alloc_pages_slowpath+0x30b/0xcf0
 __alloc_frozen_pages_noprof+0x319/0x370
 alloc_pages_mpol+0x232/0x4a0
 allocate_slab+0x96/0x3a0
 ___slab_alloc+0xe94/0x1920
 __slab_alloc+0x65/0x100
 kmem_cache_alloc_noprof+0x3f9/0x6e0
 skb_clone+0x212/0x3a0
 br_flood+0x414/0x6a0
 br_handle_frame_finish+0x15a3/0x1c50
 br_nf_hook_thresh+0x3c6/0x4a0
 br_nf_pre_routing_finish_ipv6+0x999/0xd60
 br_nf_pre_routing_ipv6+0x37e/0x6b0
 br_handle_frame+0x982/0x14c0
 __netif_receive_skb_core+0x10b9/0x4380
 __netif_receive_skb+0x72/0x380
 process_backlog+0x60e/0x14f0
 __napi_poll+0xc7/0x360
 net_rx_action+0x707/0xe30
 handle_softirqs+0x286/0x870
 do_softirq+0xec/0x180
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0
 cfg80211_inform_single_bss_data+0x13d2/0x1ac0
 cfg80211_inform_bss_data+0x203/0x3b40
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x749/0x9e0
 ieee80211_ibss_rx_queued_mgmt+0xa4e/0x2af0
 ieee80211_iface_work+0x85f/0x12d0
 cfg80211_wiphy_work+0x2bb/0x470
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
