INFO: task kworker/0:3:6264 blocked for more than 146 seconds. Not tainted 6.16.0-rc1-syzkaller-g39dfc971e42d #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:6264 tgid:6264 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events reg_todo 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_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209 reg_todo+0x834/0x968 net/wireless/reg.c:3222 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: 2 locks held by kworker/0:1/11: 3 locks held by kworker/u8:0/12: 3 locks held by kworker/u8:1/15: 1 lock held by khungtaskd/32: #0: ffff80008f819e40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 3 locks held by kworker/u8:2/41: 3 locks held by kworker/u8:3/42: 3 locks held by kworker/u8:4/302: 3 locks held by kworker/u8:5/468: 3 locks held by kworker/u8:6/593: 3 locks held by kworker/u8:7/2097: 3 locks held by kworker/u8:8/2204: 3 locks held by kworker/R-ipv6_/4163: #0: ffff0000d2851948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff80009ee87ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0} , at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092872028 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/0:2/4179: 2 locks held by kworker/R-bat_e/4245: 3 locks held by dhcpcd/6186: 3 locks held by dhcpcd/6187: 4 locks held by kworker/0:3/6264: #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000a6567bc0 (reg_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092872028 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000d7d98768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline] #3: ffff0000d7d98768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209 2 locks held by getty/6283: #0: ffff0000d71780a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b9be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 3 locks held by udevd/6510: 2 locks held by syz-executor/6519: 2 locks held by syz-executor/6523: 1 lock held by syz-executor/6524: 2 locks held by kworker/1:3/6525: 1 lock held by syz-executor/6529: #0: ffff0000c96d40e0 (&type->s_umount_key#30){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000c96d40e0 (&type->s_umount_key#30){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000c96d40e0 (&type->s_umount_key#30){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 3 locks held by kworker/u8:9/6679: 1 lock held by syz.3.77/6931: #0: ffff0000d1cb3cd8 (&nft_net->commit_mutex){+.+.}-{4:4}, at: nf_tables_valid_genid+0x44/0x11c net/netfilter/nf_tables_api.c:11505 3 locks held by kworker/u8:10/7029: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000a5e27bc0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092872028 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:11/7030: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000a34e7bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092872028 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/u8:12/7031: 2 locks held by kworker/1:2H/7034: #0: ffff0000c1e82d48 ((wq_completion)kblockd){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000a6817bc0 ((work_completion)(&q->timeout_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 3 locks held by syz-executor/7035: =============================================