INFO: task syz.3.12263:29648 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.12263     state:D stack:0     pid:29648 tgid:29648 ppid:5941   task_flags:0x400040 flags:0x00400019
Call trace:
 __switch_to+0x208/0x4ec arch/arm64/kernel/process.c:741 (T)
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0xd58/0x3180 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xd0/0x344 kernel/sched/core.c:7058
 request_wait_answer+0x300/0x4ac fs/fuse/dev.c:565
 __fuse_request_send fs/fuse/dev.c:579 [inline]
 __fuse_simple_request+0x1e8/0x97c fs/fuse/dev.c:673
 fuse_simple_request fs/fuse/fuse_i.h:1230 [inline]
 fuse_flush+0x37c/0x4d8 fs/fuse/file.c:476
 filp_flush+0xd4/0x160 fs/open.c:1547
 filp_close+0x18/0x38 fs/open.c:1560
 __range_close fs/file.c:767 [inline]
 __do_sys_close_range fs/file.c:826 [inline]
 __se_sys_close_range fs/file.c:790 [inline]
 __arm64_sys_close_range+0x2b0/0x4c8 fs/file.c:790
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:132
 do_el0_svc_compat+0x40/0x68 arch/arm64/kernel/syscall.c:157
 el0_svc_compat+0x4c/0x184 arch/arm64/kernel/entry-common.c:1029
 el0t_32_sync_handler+0x88/0xac arch/arm64/kernel/entry-common.c:1047
 el0t_32_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:601

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff800087310020 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x18/0x1c4 kernel/locking/lockdep.c:6769
2 locks held by getty/3255:
 #0: ffff0000131c10a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80008d5eb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e8/0xdc0 drivers/tty/n_tty.c:2222
2 locks held by syz-executor/4063:
3 locks held by kworker/u8:0/26335:
3 locks held by kworker/u8:1/29672:

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