INFO: task syz-executor.4:6948 blocked for more than 143 seconds.
      Not tainted 5.15.108-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:    0 pid: 6948 ppid:  4615 flags:0x00000001
Call trace:
 __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0xf10/0x1e38 kernel/sched/core.c:6372
 schedule+0x11c/0x1c8 kernel/sched/core.c:6455
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6514
 rwsem_down_read_slowpath+0x5b0/0x988 kernel/locking/rwsem.c:1047
 __down_read_common+0x6c/0x2dc kernel/locking/rwsem.c:1231
 __down_read kernel/locking/rwsem.c:1244 [inline]
 down_read+0xc8/0x11c kernel/locking/rwsem.c:1490
 user_get_super+0x11c/0x240 fs/super.c:837
 quotactl_block fs/quota/quota.c:889 [inline]
 __do_sys_quotactl fs/quota/quota.c:953 [inline]
 __se_sys_quotactl fs/quota/quota.c:915 [inline]
 __arm64_sys_quotactl+0x4b0/0x7a4 fs/quota/quota.c:915
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffff800014aa1660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268
2 locks held by getty/3733:
 #0: ffff0000d3cb0098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
 #1: ffff80001a2fc2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147
5 locks held by syz-executor.4/4486:
1 lock held by syz-executor.4/6948:
 #0: ffff0001215ca0e0 (&type->s_umount_key#50){++++}-{3:3}, at: user_get_super+0x11c/0x240 fs/super.c:837
1 lock held by syz-executor.4/7091:
 #0: ffff0001215ca0e0 (&type->s_umount_key#50){++++}-{3:3}, at: user_get_super+0x11c/0x240 fs/super.c:837
1 lock held by syz-executor.4/7164:
 #0: ffff0001215ca0e0 (&type->s_umount_key#50){++++}-{3:3}, at: user_get_super+0x11c/0x240 fs/super.c:837
1 lock held by syz-executor.4/7166:
 #0: ffff0001215ca0e0 (&type->s_umount_key#50){++++}-{3:3}, at: user_get_super+0x11c/0x240 fs/super.c:837

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