INFO: task syz-executor.0:6009 blocked for more than 430 seconds.
      Not tainted 6.8.0-rc1-syzkaller-00008-g3951f6add519 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:6009  tgid:6008  ppid:5169   flags:0x00000006
Call Trace:
[<ffffffff85910e32>] context_switch kernel/sched/core.c:5400 [inline]
[<ffffffff85910e32>] __schedule+0xc40/0x3196 kernel/sched/core.c:6727
[<ffffffff8591344a>] __schedule_loop kernel/sched/core.c:6802 [inline]
[<ffffffff8591344a>] schedule+0xc2/0x254 kernel/sched/core.c:6817
[<ffffffff8591410e>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6874
[<ffffffff859173f2>] __mutex_lock_common kernel/locking/mutex.c:684 [inline]
[<ffffffff859173f2>] __mutex_lock+0x86a/0x1022 kernel/locking/mutex.c:752
[<ffffffff85917bbe>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:804
[<ffffffff830b2f12>] device_lock include/linux/device.h:990 [inline]
[<ffffffff830b2f12>] usbdev_open+0x1c6/0x7c2 drivers/usb/core/devio.c:1051
[<ffffffff809434cc>] chrdev_open+0x248/0x640 fs/char_dev.c:414
[<ffffffff809226d6>] do_dentry_open+0x81a/0x13a6 fs/open.c:953
[<ffffffff80927ffa>] vfs_open+0xe0/0x10a fs/open.c:1087
[<ffffffff809732cc>] do_open fs/namei.c:3641 [inline]
[<ffffffff809732cc>] path_openat+0x1b6e/0x2542 fs/namei.c:3798
[<ffffffff809750fa>] do_filp_open+0x172/0x328 fs/namei.c:3825
[<ffffffff809288da>] do_sys_openat2+0x174/0x1ca fs/open.c:1404
[<ffffffff80929286>] do_sys_open fs/open.c:1419 [inline]
[<ffffffff80929286>] __do_sys_openat fs/open.c:1435 [inline]
[<ffffffff80929286>] __se_sys_openat fs/open.c:1430 [inline]
[<ffffffff80929286>] __riscv_sys_openat+0x178/0x1fe fs/open.c:1430
[<ffffffff8000f45a>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff85907768>] do_trap_ecall_u+0x108/0x11a arch/riscv/kernel/traps.c:326
[<ffffffff85928d60>] ret_from_exception+0x0/0x64 arch/riscv/kernel/entry.S:112

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff87780680 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x278 kernel/locking/lockdep.c:6610
1 lock held by klogd/2817:
2 locks held by getty/2965:
 #0: ff60000014c4a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ff200000002a62f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd5e/0x1272 drivers/tty/n_tty.c:2201
6 locks held by kworker/1:1/3080:
 #0: ff6000000decb138 ((wq_completion)usb_hub_wq
){+.+.}-{0:0}, at: process_one_work+0x6c2/0x179c kernel/workqueue.c:2608
 #1: ff20000006fdbc70 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6c2/0x179c kernel/workqueue.c:2608
 #2: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #2: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4756 drivers/usb/core/hub.c:5793
 #3: ff60000014596190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #3: ff60000014596190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x462 drivers/base/dd.c:1005
 #4: ff600000189e3160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #4: ff600000189e3160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x462 drivers/base/dd.c:1005
 #5: ff6000001976cd40 (&dev->phy_mutex){+.+.}-{3:3}, at: __asix_mdio_read+0xac/0x2a0 drivers/net/usb/asix_common.c:504
1 lock held by syz-executor.0/6009:
 #0: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #0: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1c6/0x7c2 drivers/usb/core/devio.c:1051
3 locks held by kworker/0:5/6013:
1 lock held by syz-executor.0/6520:
 #0: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #0: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1c6/0x7c2 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.0/7071:
 #0: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #0: ff60000015ab8190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1c6/0x7c2 drivers/usb/core/devio.c:1051

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