INFO: task syz.2.323:5662 blocked for more than 143 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.323 state:D stack:0 pid:5662 ppid:4302 flags:0x00000001 Call trace: __switch_to+0x308/0x598 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6693 rwsem_down_read_slowpath+0x534/0x858 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0xac/0x308 kernel/locking/rwsem.c:1522 filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:226 do_page_cache_ra mm/readahead.c:300 [inline] page_cache_ra_order+0x850/0xa74 mm/readahead.c:564 do_sync_mmap_readahead+0x3a4/0x844 filemap_fault+0x604/0xf7c mm/filemap.c:3227 __do_fault+0x11c/0x3d8 mm/memory.c:4278 do_shared_fault mm/memory.c:4684 [inline] do_fault mm/memory.c:4762 [inline] handle_pte_fault mm/memory.c:5029 [inline] __handle_mm_fault mm/memory.c:5171 [inline] handle_mm_fault+0x17ac/0x3d38 mm/memory.c:5292 __do_page_fault arch/arm64/mm/fault.c:499 [inline] do_page_fault+0x330/0x890 arch/arm64/mm/fault.c:583 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:667 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:803 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:580 __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:217 [inline] __sys_socketpair+0x204/0x7a4 net/socket.c:1720 __do_sys_socketpair net/socket.c:1786 [inline] __se_sys_socketpair net/socket.c:1783 [inline] __arm64_sys_socketpair+0x9c/0xb8 net/socket.c:1783 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015c65530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff800015c65d30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:517 6 locks held by kworker/1:1/24: #0: ffff0000c46a8d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265 #1: ffff80001d2e7c20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267 #2: ffff0000d16f6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline] #2: ffff0000d16f6190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b0/0x42e4 drivers/usb/core/hub.c:5801 #3: ffff0000d1f21510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3159 [inline] #3: ffff0000d1f21510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5373 [inline] #3: ffff0000d1f21510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5617 [inline] #3: ffff0000d1f21510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5773 [inline] #3: ffff0000d1f21510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1bdc/0x42e4 drivers/usb/core/hub.c:5855 #4: ffff0000d1a38e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5374 [inline] #4: ffff0000d1a38e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5617 [inline] #4: ffff0000d1a38e68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5773 [inline] #4: ffff0000d1a38e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1c04/0x42e4 drivers/usb/core/hub.c:5855 #5: ffff0001b3d14158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #5: ffff0001b3d14158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1355 [inline] #5: ffff0001b3d14158 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1645 [inline] #5: ffff0001b3d14158 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2c4/0x1d44 kernel/sched/core.c:6474 1 lock held by khungtaskd/28: #0: ffff800015c65360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 2 locks held by getty/4056: #0: ffff0000d6354098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001d8202f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2198 1 lock held by syz.3.157/4958: #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1a08/0x26c8 block/ioctl.c:490 1 lock held by syz.2.323/5662: #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:226 1 lock held by syz.6.364/5837: #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:226 3 locks held by kworker/u4:19/5898: 3 locks held by syz.5.387/5962: #0: ffff0000c96680e0 (&type->s_umount_key#63/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 #1: ffff800015e2a4e8 (read_mutex){+.+.}-{3:3}, at: cramfs_read_super+0xb0/0x7f4 fs/cramfs/inode.c:517 #2: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #2: ffff0000c0549ed8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:226 4 locks held by udevd/6185: #0: ffff0000fa9b1b08 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xac/0xc44 fs/seq_file.c:182 #1: ffff0000f471e488 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x58/0x384 fs/kernfs/file.c:154 #2: ffff00010ce1bda0 (kn->active#4){.+.+}-{0:0}, at: kernfs_seq_start+0x74/0x384 fs/kernfs/file.c:155 #3: ffff0000f55f8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline] #3: ffff0000f55f8190 (&dev->mutex){....}-{3:3}, at: uevent_show+0x178/0x338 drivers/base/core.c:2668 1 lock held by syz.7.895/7666: 4 locks held by syz.9.898/7675: =============================================