------------[ cut here ]------------ WARNING: CPU: 1 PID: 20734 at fs/io_uring.c:1546 req_ref_put fs/io_uring.c:1546 [inline] WARNING: CPU: 1 PID: 20734 at fs/io_uring.c:1546 req_ref_put fs/io_uring.c:1544 [inline] WARNING: CPU: 1 PID: 20734 at fs/io_uring.c:1546 io_poll_double_wake+0x4fb/0x760 fs/io_uring.c:4986 Modules linked in: CPU: 1 PID: 20734 Comm: syz-executor.5 Not tainted 5.14.0-rc3-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:1546 [inline] RIP: 0010:req_ref_put fs/io_uring.c:1544 [inline] RIP: 0010:io_poll_double_wake+0x4fb/0x760 fs/io_uring.c:4986 Code: e2 db ff f0 41 ff 4c 24 5c 0f 94 c3 31 ff 89 de e8 4a b4 95 ff 84 db b8 01 00 00 00 0f 84 6f fc ff ff 89 04 24 e8 f5 ad 95 ff <0f> 0b 8b 04 24 e9 5d fc ff ff e8 e6 ad 95 ff 4c 89 e5 e9 a1 fb ff RSP: 0018:ffffc90006557c00 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880ac179c40 RSI: ffffffff81dfdcfb RDI: 0000000000000003 RBP: ffff888031d17a5c R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81dfdce6 R11: 0000000000000000 R12: ffff888031d17a00 R13: 0000000000000000 R14: ffff888031d17a30 R15: ffff88806f782220 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:000000000afff380 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000000816c0d0 CR3: 0000000016e6a000 CR4: 00000000001526e0 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_fast_syscall_32+0x72/0xf0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f02549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000086cfb40 EFLAGS: 00000206 ORIG_RAX: 0000000000000006 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 000000000816c000 RDI: 000000000014387e RBP: 000000000819b740 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000