INFO: task kworker/0:3:6553 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:6553 tgid:6553 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events reg_todo Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5325 [inline] __schedule+0x13b0/0x2864 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xb4/0x230 kernel/sched/core.c:7026 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7083 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:676 __mutex_lock kernel/locking/mutex.c:760 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:812 class_wiphy_constructor include/net/cfg80211.h:6358 [inline] reg_process_self_managed_hints+0xc8/0x1dc net/wireless/reg.c:3179 reg_todo+0x834/0x968 net/wireless/reg.c:3192 process_one_work+0x7e8/0x155c kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3427 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 Showing all locks held in the system: 1 lock held by kthreadd/2: 4 locks held by kworker/0:0/9: 2 locks held by kworker/0:1/11: 4 locks held by kworker/u8:0/12: #0: ffff0000d812e148 ((wq_completion)ext4-rsv-conversion){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237 #1: ffff800097a57be0 ((work_completion)(&ei->i_rsv_conversion_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237 #2: ffff0000d860c950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe4c/0x10dc fs/jbd2/transaction.c:442 #3: ffff0000dd718270 (&ei->i_data_sem){++++}-{4:4}, at: ext4_map_blocks+0x620/0x14a8 fs/ext4/inode.c:810 4 locks held by kworker/u8:1/15: 1 lock held by khungtaskd/32: #0: ffff80008f76b560 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 6 locks held by kworker/u8:2/41: 3 locks held by kworker/u8:3/42: 4 locks held by kworker/u8:4/256: 2 locks held by kworker/u8:5/623: 3 locks held by kworker/1:2/2361: 3 locks held by kworker/R-ipv6_/4233: #0: ffff0000d278e948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237 #1: ffff80009ef17bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237 #2: ffff800092857328 ( rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 5 locks held by kworker/R-bat_e/4309: 3 locks held by kworker/u8:6/4476: 4 locks held by kworker/u8:7/4720: #0: ffff0000cd4bd948 ((wq_completion)wg-kex-wg0#9){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237 #1: ffff8000a2877be0 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237 #2: ffff0000cd51d348 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_create_initiation+0x10c/0x648 drivers/net/wireguard/noise.c:529 #3: ffff0000da861708 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_create_initiation+0x114/0x648 drivers/net/wireguard/noise.c:530 1 lock held by klogd/6180: 2 locks held by dhcpcd/6245: 3 locks held by dhcpcd/6246: 2 locks held by getty/6333: #0: ffff0000d36770a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009bb2b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 3 locks held by syz-executor/6538: 1 lock held by udevd/6543: 1 lock held by syz-executor/6549: #0: ffff800092857328 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by syz-executor/6550: 4 locks held by kworker/0:3/6553: #0: ffff0000c0029948