INFO: task syz-executor:6483 blocked for more than 144 seconds.
      Not tainted 6.15.0-rc1-syzkaller-g2fe2b96c3818 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:6483  tgid:6483  ppid:6469   task_flags:0x400140 flags:0x00000008
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x16a4/0x2c80 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6860
 wb_wait_for_completion+0x154/0x284 fs/fs-writeback.c:216
 sync_inodes_sb+0x220/0x9ac fs/fs-writeback.c:2833
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x2bc fs/super.c:621
 kill_block_super+0x44/0x90 fs/super.c:1710
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1435
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1442
 task_work_run+0x230/0x2e0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745
 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:
3 locks held by kworker/u8:0/12:
3 locks held by kworker/u8:1/14:
1 lock held by khungtaskd/32:
 #0: ffff800090127de0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
2 locks held by kworker/R-write/34:
6 locks held by kworker/u8:2/44:
 #0: ffff0000c183a148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
 #1: ffff800098947b80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
 #2: ffff800093074a90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x148/0xa48 net/core/net_namespace.c:608
 #3: ffff0000cb66e0e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:922 [inline]
 #3: ffff0000cb66e0e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
 #3: ffff0000cb66e0e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x114/0x418 net/devlink/core.c:506
 #4: ffff0000cb66f250 (&devlink->lock_key#3){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline]
 #4: ffff0000cb66f250 (&devlink->lock_key#3){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
 #4: ffff0000cb66f250 (&devlink->lock_key#3){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x124/0x418 net/devlink/core.c:506
 #5: ffff8000930815a8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/u8:3/45:
3 locks held by kworker/u8:4/62:
3 locks held by kworker/u8:5/284:
3 locks held by kworker/u8:6/496:
3 locks held by kworker/u8:7/533:
3 locks held by kworker/u8:8/583:
3 locks held by kworker/u8:9/658:
3 locks held by kworker/u8:10/696:
3 locks held by kworker/R-ipv6_/4129:
 #0: ffff0000d2afe948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212
 #1: ffff8000a0247b20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212
 #2: ffff8000930815a8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
2 locks held by kworker/R-bat_e/4210:
2 locks held by udevd/6090:
2 locks held by getty/6232:
 #0: ffff0000c30310a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: