INFO: task kworker/u8:7:2189 blocked for more than 143 seconds. Not tainted 6.16.0-rc4-syzkaller-g3c795c3404e8 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:7 state:D stack:0 pid:2189 tgid:2189 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events_power_efficient reg_check_chans_work Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6935 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 class_wiphy_constructor include/net/cfg80211.h:6062 [inline] reg_leave_invalid_chans net/wireless/reg.c:2471 [inline] reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 INFO: task kworker/u8:10:6888 blocked for more than 144 seconds. Not tainted 6.16.0-rc4-syzkaller-g3c795c3404e8 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:10 state:D stack:0 pid:6888 tgid:6888 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: ipv6_addrconf addrconf_verify_work Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6935 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] addrconf_verify_work+0x20/0x3c net/ipv6/addrconf.c:4738 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 Showing all locks held in the system: 1 lock held by kthreadd/2: 3 locks held by kworker/u8:0/12: 4 locks held by kworker/u8:1/14: 3 locks held by kworker/1:0/24: #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff800097b37bc0 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092892968 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 4 locks held by kworker/1:1/26: #0: ffff0000f193e948 ((wq_completion)wg-kex-wg1#9){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff800097b57bc0 ( (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_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff0000c2f5d308 (&w #2: ffff0000c2f5d308 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x130/0x748 drivers/net/wireguard/noise.c:598 #3: ffff0000cfec5278 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x414/0x748 drivers/net/wireguard/noise.c:632 1 lock held by khungtaskd/32: #0: ffff80008f839e80 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 3 locks held by kworker/u8:2/41: 2 locks held by kworker/u8:3/42: 3 locks held by pr/ttyAMA0/43: 3 locks held by kworker/u8:4/79: 2 locks held by kworker/u8:5/348: 4 locks held by kworker/u8:6/454: 2 locks held by kworker/1:2/1797: 4 locks held by kworker/u8:7/2189: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000a0877bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092892968 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000d3680768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline] #3: ffff0000d3680768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_leave_invalid_chans net/wireless/reg.c:2471 [inline] #3: ffff0000d3680768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486 2 locks held by kworker/0:2/2318: 2 locks held by kworker/R-bat_e/4241: 4 locks held by kworker/u8:8/4489: 1 lock held by klogd/6116: 2 locks held by udevd/6127: 2 locks held by dhcpcd/6181: 2 locks held by getty/6276: #0: ffff0000d71500a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009ba0b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 1 lock held by udevd/6502: 2 locks held by kworker/0:3/6514: 1 lock held by udevd/6523: 2 locks held by kworker/0:4/6568: 3 locks held by kworker/0:8/6617: 3 locks held by kworker/u8:9/6710: 2 locks held by syz-executor/6786: #0: ffff0000f5d500e0 (&type->s_umount_key#54){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000f5d500e0 (&type->s_umount_key#54){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000f5d500e0 (&type->s_umount_key#54){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008f8f01c8 (lock#2){+.+.}-{4:4}, at: __lru_add_drain_all+0x88/0x4dc mm/swap.c:830 3 locks held by kworker/u8:10/6888: #0: ffff0000d2333948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff80009f317bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092892968 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/u8:11/6900: 3 locks held by syz-executor/6957: 4 locks held by kworker/u8:12/7234: 2 locks held by udevd/7853: 1 lock held by syz-executor/8214: 1 lock held by syz.0.435/9045: #0: ffff800092892968 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/1:5/9117: 2 locks held by syz.7.456/9214: #0: ffff0000d944c0e0 (&type->s_umount_key#52/1){+.+.}-{4:4}, at: alloc_super+0x1a0/0x80c fs/super.c:345 #1: ffff80008f8f01c8 (lock#2){+.+.}-{4:4}, at: __lru_add_drain_all+0x88/0x4dc mm/swap.c:830 3 locks held by udevadm/9220: 4 locks held by kworker/u8:13/9245: 3 locks held by kworker/u8:14/9246: 2 locks held by kworker/1:6/9247: 3 locks held by syz-executor/9249: =============================================