INFO: task syz.3.18:7498 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc4-syzkaller-00034-ge056da87c780 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.18        state:D stack:0     pid:7498  tgid:7496  ppid:7291   task_flags:0x400040 flags:0x00000001
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:
1 lock held by khungtaskd/31:
 #0: ffff80008fda22a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by kworker/u8:5/185:
6 locks held by kworker/u8:6/533:
 #0: ffff0000c1899948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3210
 #1: ffff80009c967ba0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3210
 #2: ffff800092b65390 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x148/0xa48 net/core/net_namespace.c:606
 #3: ffff0000eefb00e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
 #3: ffff0000eefb00e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
 #3: ffff0000eefb00e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x114/0x418 net/devlink/core.c:506
 #4: ffff0000eefb4250 (&devlink->lock_key#14){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline]
 #4: ffff0000eefb4250 (&devlink->lock_key#14){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
 #4: ffff0000eefb4250 (&devlink->lock_key#14){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x124/0x418 net/devlink/core.c:506
 #5: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
3 locks held by kworker/u8:9/744:
 #0: ffff0000d215f148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3210
 #1: ffff80009d037ba0 ((work_completion)(&(&ifa->dad_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
3 locks held by kworker/u8:13/4729:
 #0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3210
 #1: ffff8000a22e7ba0 ((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 getty/6206:
 #0: ffff0000d2ac90a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009bcae2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
2 locks held by syz.3.18/7497:
1 lock held by syz.3.18/7498:
 #0: ffff0000c957f438 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.0.15/7599:
1 lock held by syz.0.15/7606:
 #0: ffff0000c998feb8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
3 locks held by syz.1.16/7598:
1 lock held by syz.1.16/7603:
 #0: ffff0000c998fcf8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.4.19/7615:
1 lock held by syz.4.19/7618:
 #0: ffff0000d12415f8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
2 locks held by syz.2.17/7634:
1 lock held by syz.2.17/7640:
 #0: ffff0000d46730b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x220/0x2ac fs/file.c:1192
1 lock held by syz-executor/19426:
 #0: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
 #0: ffff800092b71ae8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xaf8/0x1844 net/core/rtnetlink.c:4021
1 lock held by syz.1.5662/19624:
1 lock held by syz.2.5664/19628:

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