------------[ cut here ]------------
WARNING: CPU: 0 PID: 16106 at fs/io_uring.c:1535 req_ref_put fs/io_uring.c:1535 [inline]
WARNING: CPU: 0 PID: 16106 at fs/io_uring.c:1535 req_ref_put fs/io_uring.c:1533 [inline]
WARNING: CPU: 0 PID: 16106 at fs/io_uring.c:1535 io_poll_double_wake+0x4fb/0x760 fs/io_uring.c:4974
Modules linked in:
CPU: 0 PID: 16106 Comm: syz-executor.2 Not tainted 5.14.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:req_ref_put fs/io_uring.c:1535 [inline]
RIP: 0010:req_ref_put fs/io_uring.c:1533 [inline]
RIP: 0010:io_poll_double_wake+0x4fb/0x760 fs/io_uring.c:4974
Code: 0a dc ff f0 41 ff 4c 24 5c 0f 94 c3 31 ff 89 de e8 1a 64 96 ff 84 db b8 01 00 00 00 0f 84 6f fc ff ff 89 04 24 e8 55 5c 96 ff <0f> 0b 8b 04 24 e9 5d fc ff ff e8 46 5c 96 ff 4c 89 e5 e9 a1 fb ff
RSP: 0018:ffffc900386afc20 EFLAGS: 00010093
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff8880ae5d2340 RSI: ffffffff81de625b RDI: 0000000000000003
RBP: ffff888012fccadc R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff81de6246 R11: 0000000000000000 R12: ffff888012fcca80
R13: 0000000000000000 R14: ffff888012fccab0 R15: ffff88801d899320
FS:  00000000027a7400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000014a53ad CR3: 000000001f687000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __wake_up_common+0x147/0x650 kernel/sched/wait.c:108
 __wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:138
 pty_close+0x224/0x4f0 drivers/tty/pty.c:68
 tty_release+0x45e/0x1200 drivers/tty/tty_io.c:1771
 __fput+0x288/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
 exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4193fb
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffcf5953820 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004193fb
RDX: 0000000000570a98 RSI: 0000000000000081 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000570a98
R13: 00007ffcf5953940 R14: 000000000056bf80 R15: 00000000000667a2