INFO: task syz-executor.0:9595 blocked for more than 167 seconds.
      Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:28976 pid: 9595 ppid:  6558 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4965 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6246
 schedule+0xd2/0x260 kernel/sched/core.c:6319
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
 exit_aio+0x2c8/0x340 fs/aio.c:894
 __mmput+0x7b/0x4b0 kernel/fork.c:1161
 mmput+0x56/0x60 kernel/fork.c:1185
 exit_mm kernel/exit.c:507 [inline]
 do_exit+0xb29/0x2b40 kernel/exit.c:819
 do_group_exit+0x125/0x310 kernel/exit.c:929
 get_signal+0x47d/0x2160 kernel/signal.c:2833
 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:863
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f019bbeda39
RSP: 002b:00007f0199163218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f019bcf0f68 RCX: 00007f019bbeda39
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f019bcf0f68
RBP: 00007f019bcf0f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f019bcf0f6c
R13: 00007ffc99c95b4f R14: 00007f0199163300 R15: 0000000000022000
 </TASK>