INFO: task syz.1.16:7404 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc4-syzkaller-ge056da87c780 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.16        state:D stack:0     pid:7404  tgid:7402  ppid:7206   task_flags:0x400040 flags:0x00000009
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0x1360/0x257c kernel/sched/core.c:6765
 __schedule_loop kernel/sched/core.c:6842 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6857
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6914
 __mutex_lock_common+0xd30/0x24b8 kernel/locking/mutex.c:662
 __mutex_lock kernel/locking/mutex.c:730 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:782
 fdget_pos+0x220/0x2ac fs/file.c:1192
 class_fd_pos_constructor include/linux/file.h:85 [inline]
 ksys_read+0x8c/0x26c fs/read_write.c:699
 __do_sys_read fs/read_write.c:717 [inline]
 __se_sys_read fs/read_write.c:715 [inline]
 __arm64_sys_read+0x7c/0x90 fs/read_write.c:715
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
2 locks held by kworker/u8:1/13:
1 lock held by khungtaskd/31:
 #0: ffff80008fda22a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
5 locks held by kworker/u8:5/330:
3 locks held by kworker/u8:9/4550:
 #0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3210
 #1: ffff80009f557ba0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3210
 #2: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
2 locks held by dhcpcd/6112:
 #0: ffff0000e3ca06c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: __netlink_dump_start+0xf8/0x720 net/netlink/af_netlink.c:2397
 #1: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #1: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x8c/0x1d0 net/core/rtnetlink.c:6780
2 locks held by getty/6202:
 #0: ffff0000d34870a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009bc8e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
3 locks held by syz.1.16/7403:
1 lock held by syz.1.16/7404:
 #0: ffff0000e8720b78 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.3.18/7537:
1 lock held by syz.3.18/7540:
 #0: ffff0000d6c7c7f8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.0.15/7554:
1 lock held by syz.0.15/7559:
 #0: ffff0000da7d1438 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.2.17/7557:
1 lock held by syz.2.17/7561:
 #0: ffff0000d325e9b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.4.19/7566:
1 lock held by syz.4.19/7569:
 #0: ffff0000d627b7b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
1 lock held by syz-executor/14839:
7 locks held by syz-executor/18380:
 #0: ffff0000d8dae420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3035 [inline]
 #0: ffff0000d8dae420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x248/0xa9c fs/read_write.c:675
 #1: ffff0000dc393888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
 #2: ffff0000cccf2c38 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
 #3: ffff800091cb7068 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: new_device_store+0x170/0x704 drivers/net/netdevsim/bus.c:166
 #4: ffff0000da2c80e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
 #4: ffff0000da2c80e8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x90/0x434 drivers/base/dd.c:1005
 #5: ffff0000e79bb250 (&devlink->lock_key#17){+.+.}-{4:4}, at: devl_lock+0x24/0x34 net/devlink/core.c:276
 #6: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79

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