INFO: task syz.3.156:7652 blocked for more than 143 seconds.
      Not tainted 6.12.0-rc3-syzkaller-gd2b1b3bccef6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.156       state:D stack:0     pid:7652  tgid:7649  ppid:7171   flags:0x00000001
Call trace:
 __switch_to+0x428/0x860 arch/arm64/kernel/process.c:700
 context_switch kernel/sched/core.c:5322 [inline]
 __schedule+0x14bc/0x2718 kernel/sched/core.c:6682
 __schedule_loop kernel/sched/core.c:6759 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6774
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6831
 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:684
 __mutex_lock kernel/locking/mutex.c:752 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
 fdget_pos+0x214/0x2a0 fs/file.c:1160
 ksys_read+0x8c/0x26c fs/read_write.c:703
 __do_sys_read fs/read_write.c:722 [inline]
 __se_sys_read fs/read_write.c:720 [inline]
 __arm64_sys_read+0x7c/0x90 fs/read_write.c:720
 __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+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffff80008f9d04a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by kworker/u8:3/44:
1 lock held by klogd/6023:
2 locks held by getty/6198:
 #0: ffff0000d73c90a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b7ce2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
3 locks held by kworker/u8:8/6668:
1 lock held by syz.3.156/7650:
2 locks held by syz.3.156/7651:
1 lock held by syz.3.156/7652:
 #0: ffff0000eb257cf8 (&f->f_pos_lock){+.+.}-{3:3}, at: fdget_pos+0x214/0x2a0 fs/file.c:1160
3 locks held by syz.3.156/7653:
1 lock held by syz-executor/8809:
 #0: ffff80008f9d59f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
 #0: ffff80008f9d59f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x354/0x674 kernel/rcu/tree_exp.h:976
1 lock held by syz.2.561/9466:
4 locks held by syz.1.566/9478:

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