INFO: task syz-executor:6525 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:6525  tgid:6525  ppid:1      task_flags:0x400140 flags:0x00000019
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:742 (T)
 context_switch kernel/sched/core.c:5401 [inline]
 __schedule+0x1414/0x2a28 kernel/sched/core.c:6790
 __schedule_loop kernel/sched/core.c:6868 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6883
 io_schedule+0x84/0xf0 kernel/sched/core.c:7728
 folio_wait_bit_common+0x56c/0x9e0 mm/filemap.c:1317
 __folio_lock mm/filemap.c:1675 [inline]
 folio_lock include/linux/pagemap.h:1114 [inline]
 __filemap_get_folio+0x1ec/0xc38 mm/filemap.c:1928
 truncate_inode_pages_range+0x38c/0xe18 mm/truncate.c:388
 truncate_inode_pages mm/truncate.c:460 [inline]
 truncate_inode_pages_final+0x8c/0xbc mm/truncate.c:495
 evict+0x420/0x928 fs/inode.c:812
 dispose_list fs/inode.c:852 [inline]
 evict_inodes+0x650/0x6e8 fs/inode.c:906
 generic_shutdown_super+0xa0/0x2b8 fs/super.c:628
 kill_block_super+0x44/0x90 fs/super.c:1755
 deactivate_locked_super+0xc4/0x12c fs/super.c:474
 deactivate_super+0xe0/0x100 fs/super.c:507
 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x174/0x1f4 arch/arm64/kernel/entry-common.c:155
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline]
 el0_svc+0xb8/0x180 arch/arm64/kernel/entry-common.c:880
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff80008f8599c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
3 locks held by kworker/u8:2/41:
 #0: ffff0000c18a2148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000990e7bc0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff8000928a99d0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf4/0x6c0 net/core/net_namespace.c:662
2 locks held by getty/6301:
 #0: ffff0000d2cb50a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009ba3b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222
1 lock held by syz-executor/6525:
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz.3.321/8225:
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: __super_lock fs/super.c:59 [inline]
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: super_lock+0x240/0x32c fs/super.c:121
1 lock held by syz.6.398/8858:
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: __super_lock fs/super.c:59 [inline]
 #0: ffff0000c81c40e0 (&type->s_umount_key#65){++++}-{4:4}, at: super_lock+0x240/0x32c fs/super.c:121
3 locks held by kworker/u8:13/8872:
 #0: ffff0000d2a2d148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a3517bc0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by syz-executor/8888:
1 lock held by syz-executor/9009:
1 lock held by syz-executor/9092:
1 lock held by syz.2.463/9215:
 #0: ffff0000d39992d0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:374 [inline]
 #0: ffff0000d39992d0 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x180/0x43c mm/util.c:577
4 locks held by syz.2.463/9216:
4 locks held by dhcpcd-run-hook/9218:

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