INFO: task syz.5.388:8421 blocked for more than 151 seconds. Not tainted 6.15.0-rc6-syzkaller-ga82e92598ab1 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.388 state:D stack:0 pid:8421 task:syz.5.388 state:D stack:0 pid:8421 tgid:8413 ppid:6721 task_flags:0x400040 flags:0x00000011 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T) context_switch kernel/sched/core.c:5382 [inline] __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767 __schedule_loop kernel/sched/core.c:6845 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6860 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6917 rwsem_down_read_slowpath+0x4ac/0x7c8 kernel/locking/rwsem.c:1084 __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x9c/0x2f8 kernel/locking/rwsem.c:1526 __super_lock fs/super.c:58 [inline] super_lock+0x240/0x32c fs/super.c:120 super_lock_shared fs/super.c:139 [inline] iterate_supers+0xa4/0x4dc fs/super.c:931 quota_sync_all fs/quota/quota.c:69 [inline] __do_sys_quotactl fs/quota/quota.c:938 [inline] __se_sys_quotactl fs/quota/quota.c:917 [inline] __arm64_sys_quotactl+0x36c/0xb30 fs/quota/quota.c:917 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Showing all locks held in the system: 1 lock held by kthreadd/2: 1 lock held by kworker/R-kvfre/6: 2 locks held by kworker/0:0/9: 4 locks held by kworker/0:1/10: 3 locks held by kworker/u8:0/12: 3 locks held by kworker/u8:1/13: 1 lock held by kworker/R-mm_pe/14: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 2 locks held by kworker/1:0/24: 4 locks held by kworker/1:1/26: #0: ffff0000f0200d48 ((wq_completion)wg-kex-wg2#10){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff800097747bc0 ((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+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff0000d8cfd308 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_response+0x180/0x988 drivers/net/wireguard/noise.c:742 #3: ffff0000cf772ad8 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_response+0x20c/0x988 drivers/net/wireguard/noise.c:753 1 lock held by khungtaskd/32: #0: ffff80008f5088a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 3 locks held by kworker/u8:2/41: 4 locks held by kworker/u8:3/45: 3 locks held by pr/ttyAMA0/46: 3 locks held by kworker/u8:4/153: 3 locks held by kworker/u8:5/487: 3 locks held by kworker/u8:6/516: 3 locks held by kworker/1:2/2298: 1 lock held by kworker/R-dm_bu/3408: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 3 locks held by kworker/R-ipv6_/4138: #0: ffff0000d3869948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff8000a0477ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff80009248b428 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by kworker/R-bat_e/4219: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 3 locks held by kworker/u8:7/4981: 3 locks held by kworker/u8:8/5030: 1 lock held by jbd2/nvme0n1p2-/6069: 1 lock held by klogd/6093: 1 lock held by udevd/6104: 1 lock held by dhcpcd/6158: 1 lock held by dhcpcd/6159: 2 locks held by getty/6250: #0: ffff0000c30450a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b5be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa0 drivers/tty/n_tty.c:2222 2 locks held by kworker/0:3/6254: 2 locks held by syz-executor/6478: 2 locks held by syz-executor/6489: #0: ffff0000c6b000e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff0000c6b000e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff0000c6b000e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:505 #1: ffff80008f928848 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/6493: 2 locks held by kworker/1:3/6496: 1 lock held by syz-executor/6500: 1 lock held by kworker/R-bond0/6518: 1 lock held by kworker/R-wg-cr/6523: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/6526: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6528: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6530: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6532: 1 lock held by kworker/R-wg-cr/6533: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6535: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/6537: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 2 locks held by kworker/0:4/6539: 2 locks held by kworker/0:5/6540: 4 locks held by kworker/0:6/6541: 2 locks held by kworker/0:8/6543: 3 locks held by kworker/u8:9/6580: 2 locks held by kworker/u8:10/6581: 4 locks held by kworker/u8:11/6582: 2 locks held by kworker/0:9/6616: 3 locks held by kworker/u8:12/6617: 3 locks held by kworker/u8:13/6618: 4 locks held by kworker/u8:14/6619: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff8000a0c57bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff80009248b428 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000e0ac8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6092 [inline] #3: ffff0000e0ac8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_leave_invalid_chans net/wireless/reg.c:2471 [inline] #3: ffff0000e0ac8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486 1 lock held by kworker/R-wg-cr/6759: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6761: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6763: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 3 locks held by syz-executor/8037: 1 lock held by kworker/R-wg-cr/8088: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/8090: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/8091: #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3b0ee8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 2 locks held by kworker/1:4/8160: 1 lock held by syz.5.388/8421: #0: ffff0000c6b000e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline] #0: ffff0000c6b000e0 (&type->s_umount_key#53){++++}-{4:4}, at: super_lock+0x240/0x32c fs/super.c:120 1 lock held by kmmpd-loop5/8420: #0: ffff0000f4272420 (sb_writers#3){++++}-{0:0}, at: kmmpd+0x2ec/0x9b8 fs/ext4/mmp.c:178 2 locks held by syz-executor/8698: =============================================