INFO: task syz-executor:5830 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:21528 pid:5830  tgid:5830  ppid:1      task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 __schedule+0x1550/0x5060
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 tun_chr_close+0x3e/0x1c0
 __fput+0x44f/0xa70
 task_work_run+0x1d9/0x270
 do_exit+0x6d0/0x2330
 do_group_exit+0x21b/0x2d0
 get_signal+0x1284/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x490
 do_syscall_64+0x2c6/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce0819c51a
