------------[ cut here ]------------ WARNING: CPU: 0 PID: 10758 at fs/io_uring.c:1535 req_ref_put fs/io_uring.c:1535 [inline] WARNING: CPU: 0 PID: 10758 at fs/io_uring.c:1535 req_ref_put fs/io_uring.c:1533 [inline] WARNING: CPU: 0 PID: 10758 at fs/io_uring.c:1535 io_poll_double_wake+0x4fb/0x760 fs/io_uring.c:4974 Modules linked in: CPU: 0 PID: 10758 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: d9 db ff f0 41 ff 4c 24 5c 0f 94 c3 31 ff 89 de e8 6a ba 95 ff 84 db b8 01 00 00 00 0f 84 6f fc ff ff 89 04 24 e8 15 b4 95 ff <0f> 0b 8b 04 24 e9 5d fc ff ff e8 06 b4 95 ff 4c 89 e5 e9 a1 fb ff RSP: 0018:ffffc9001e427c20 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880835454c0 RSI: ffffffff81dfd4bb RDI: 0000000000000003 RBP: ffff88815f9a4a5c R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81dfd4a6 R11: 0000000000000000 R12: ffff88815f9a4a00 R13: 0000000000000000 R14: ffff88815f9a4a30 R15: ffff88815d991a20 FS: 0000000001789400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000541198 CR3: 0000000165b5f000 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:0000000000a9fb80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004193fb RDX: 0000000000000000 RSI: ffffffff81e2531f RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2d8252b0 R10: 0000000000000fb9 R11: 0000000000000293 R12: 000000000056cb00 R13: 000000000056cb00 R14: 000000000056bf80 R15: 00000000002909c7