INFO: task hung in task_work

INFO: task syz.0.287:1355 blocked for more than 129 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.287       state:D
 stack:0     pid:1355  tgid:1355  ppid:290    flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6016 [inline]
 __schedule+0x1399/0x1fa0 kernel/sched/core.c:7870
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x9ad/0x2720 kernel/exit.c:954
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f9488d9c819
RSP: 002b:00007f94877b5028 EFLAGS: 00000246
 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f9489016180 RCX: 00007f9488d9c819
 rcu_barrier+0x4d/0x540 kernel/rcu/tree.c:4589
 kvm_vm_release+0x47/0x70 virt/kvm/kvm_main.c:1415
 __fput+0x1fb/0xa00 fs/file_table.c:429
 ____fput+0x20/0x30 fs/file_table.c:457
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x9ad/0x2720 kernel/exit.c:954