INFO: task syz-executor:5621 blocked for more than 144 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:19968 pid:5621  tgid:5621  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 __schedule+0x157d/0x50e0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c0/0x12d0
 tun_chr_close+0x3e/0x1c0
 __fput+0x41f/0xa40
 task_work_run+0x1d9/0x270
 do_exit+0x6fa/0x23b0
 do_group_exit+0x22d/0x2f0
 get_signal+0x121b/0x12c0
 arch_do_signal_or_restart+0xbb/0x810
 exit_to_user_mode_loop+0x86/0x490
 do_syscall_64+0x2d9/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83a815d68e
