INFO: task syz-executor.3:7023 blocked for more than 143 seconds.
      Not tainted 6.9.0-rc4-syzkaller-g6a71d2909427 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:0     pid:7023  tgid:7022  ppid:6263   flags:0x0000000d
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x14bc/0x24ec kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6838
 super_lock+0x198/0x33c fs/super.c:114
 super_lock_shared fs/super.c:139 [inline]
 iterate_supers+0xa4/0x4dc fs/super.c:919
 ksys_sync+0xb4/0x1cc fs/sync.c:102
 __arm64_sys_sync+0x14/0x24 fs/sync.c:113
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
3 locks held by kworker/u8:0/10:
 #0: ffff0000d2568948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: ffff800093c17c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
 #2: ffff800091bcdee8
 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by khungtaskd/30:
 #0: ffff80008f0578c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
5 locks held by kworker/u8:4/152:
 #0: ffff0000c1871948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: 
ffff800097c57c20
 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
 #2: ffff800091bc1dd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:591
 #3: ffff800091bcdee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
 #4: ffff80008f05cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #4: ffff80008f05cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a4/0x6c8 kernel/rcu/tree_exp.h:939
3 locks held by kworker/u8:7/2073:
 #0: ffff0000c4321948 ((wq_completion)cfg80211){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: ffff80009d537c20 ((work_completion)(&(&rdev->dfs_update_channels_wk)->work)){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
 #2: ffff800091bcdee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
2 locks held by dhcpcd/5912:
 #0: ffff0000ed344678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: netlink_dump+0xc0/0xbf0 net/netlink/af_netlink.c:2209
 #1: ffff800091bcdee8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x48c/0xbf0 net/netlink/af_netlink.c:2268
2 locks held by getty/5996:
 #0: ffff0000d2de90a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800097b6e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:4/6310:
 #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: ffff8000a94f7c20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
 #2: ffff800091bcdee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
1 lock held by syz-executor.4/6734:
 #0: ffff0000c95fe0e0 (&type->s_umount_key#69/1){+.+.}-{3:3}, at: alloc_super+0x1b0/0x83c fs/super.c:343
1 lock held by syz-executor.0/11470:
 #0: ffff800091bcdee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffff800091bcdee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e0/0xdbc net/core/rtnetlink.c:6592
1 lock held by syz-executor.2/11582:

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