INFO: task syz.1.161:4665 blocked for more than 143 seconds. Not tainted 5.15.165-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.161 state:D stack: 0 pid: 4665 ppid: 4382 flags:0x00000001 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5027 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6373 schedule+0x11c/0x1c8 kernel/sched/core.c:6456 rwsem_down_write_slowpath+0xd94/0x17e0 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 user_get_super+0xd8/0x240 fs/super.c:846 quotactl_block fs/quota/quota.c:889 [inline] __do_sys_quotactl fs/quota/quota.c:953 [inline] __se_sys_quotactl fs/quota/quota.c:915 [inline] __arm64_sys_quotactl+0x4b0/0x7a4 fs/quota/quota.c:915 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 2 locks held by kworker/0:0/7: #0: ffff0001b41a2918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:475 [inline] #0: ffff0001b41a2918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1326 [inline] #0: ffff0001b41a2918 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1621 [inline] #0: ffff0001b41a2918 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x328/0x1e48 kernel/sched/core.c:6287 #1: ffff0001b418fc48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x438/0x66c kernel/sched/psi.c:891 1 lock held by khungtaskd/27: #0: ffff800014c817a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 3 locks held by kworker/u4:3/153: 2 locks held by getty/3778: #0: ffff0000d3463098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001bff62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158 2 locks held by syz-executor/4022: #0: ffff0000e5e060e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365 #1: ffff80001500e7c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d8 fs/jfs/jfs_logmgr.c:1452 6 locks held by kworker/1:6/4072: #0: ffff0000c2903d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff80001fe27c00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff0000cec0d220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff0000cec0d220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b8/0x46b8 drivers/usb/core/hub.c:5769 #3: ffff0000cf4f85d8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3125 [inline] #3: ffff0000cf4f85d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5351 [inline] #3: ffff0000cf4f85d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5595 [inline] #3: ffff0000cf4f85d8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5741 [inline] #3: ffff0000cf4f85d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1ad0/0x46b8 drivers/usb/core/hub.c:5823 #4: ffff0000ceca7e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5352 [inline] #4: ffff0000ceca7e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5595 [inline] #4: ffff0000ceca7e68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5741 [inline] #4: ffff0000ceca7e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1af4/0x46b8 drivers/usb/core/hub.c:5823 #5: ffff8000161d5690 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x198/0x17dc drivers/usb/core/hub.c:2987 2 locks held by syz-executor/4460: #0: ffff0000d29180e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365 #1: ffff80001500e7c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d8 fs/jfs/jfs_logmgr.c:1452 1 lock held by syz.1.161/4665: #0: ffff0000e5e060e0 (&type->s_umount_key#54){++++}-{3:3}, at: user_get_super+0xd8/0x240 fs/super.c:846 1 lock held by syz.0.240/4902: #0: ffff0000e5e060e0 (&type->s_umount_key#54){++++}-{3:3}, at: iterate_supers+0xb0/0x1dc fs/super.c:714 1 lock held by syz.3.489/5717: #0: ffff0000e5e060e0 (&type->s_umount_key#54){++++}-{3:3}, at: iterate_supers+0xb0/0x1dc fs/super.c:714 2 locks held by syz-executor/5741: #0: ffff0000fbd400e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365 #1: ffff80001500e7c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d8 fs/jfs/jfs_logmgr.c:1452 1 lock held by syz.1.570/5979: #0: ffff0000e5e060e0 (&type->s_umount_key#54){++++}-{3:3}, at: iterate_supers+0xb0/0x1dc fs/super.c:714 1 lock held by syz-executor/6388: #0: ffff0000c10a40e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365 1 lock held by syz.3.981/7237: #0: ffff0000c10a40e0 (&type->s_umount_key#54){++++}-{3:3}, at: user_get_super+0xd8/0x240 fs/super.c:846 1 lock held by syz.4.1008/7317: #0: ffff0000fbd400e0 (&type->s_umount_key#54){++++}-{3:3}, at: user_get_super+0x11c/0x240 fs/super.c:848 1 lock held by syz-executor/7323: #0: ffff800014c85da8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #0: ffff800014c85da8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x320/0x660 kernel/rcu/tree_exp.h:845 1 lock held by syz-executor/7345: 1 lock held by syz.1.1020/7347: 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