------------[ cut here ]------------ WARNING: CPU: 0 PID: 14525 at fs/io_uring.c:1546 req_ref_put fs/io_uring.c:1546 [inline] WARNING: CPU: 0 PID: 14525 at fs/io_uring.c:1546 io_poll_double_wake+0x545/0x5c0 fs/io_uring.c:4986 Modules linked in: CPU: 0 PID: 14525 Comm: syz-executor.4 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:io_poll_double_wake+0x545/0x5c0 fs/io_uring.c:4986 Code: 24 e8 2f ba 91 ff bd 01 00 00 00 89 e8 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 14 ba 91 ff 0f 0b eb b7 e8 0b ba 91 ff <0f> 0b eb d8 89 d9 80 e1 07 38 c1 0f 8c 13 fb ff ff 48 89 df e8 a2 RSP: 0018:ffffc900017cf9a8 EFLAGS: 00010087 RAX: ffffffff81ee69f5 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc900125d0000 RSI: 00000000000021fe RDI: 00000000000021ff RBP: ffff8880635a2008 R08: ffffffff81ee69c8 R09: ffffed100c6b440c R10: ffffed100c6b440c R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880635a2000 R14: ffff8880635a205c R15: 1ffff1100c6b4401 FS: 00007f2a38326700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9d84b3a210 CR3: 00000000212e2000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __wake_up_common+0x2aa/0x4e0 kernel/sched/wait.c:108 __wake_up_common_lock kernel/sched/wait.c:138 [inline] __wake_up+0x145/0x210 kernel/sched/wait.c:157 tty_ldisc_lock+0x5b/0xb0 drivers/tty/tty_ldisc.c:322 tty_ldisc_hangup+0x25c/0x7e0 drivers/tty/tty_ldisc.c:738 __tty_hangup+0x4e5/0x730 drivers/tty/tty_io.c:639 tty_vhangup drivers/tty/tty_io.c:711 [inline] tty_ioctl+0x870/0x1720 drivers/tty/tty_io.c:2745 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2a38326188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000000005437 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffe8389a51f R14: 00007f2a38326300 R15: 0000000000022000