------------[ cut here ]------------ WARNING: CPU: 1 PID: 8403 at fs/io-wq.c:244 io_wqe_wake_worker fs/io-wq.c:244 [inline] WARNING: CPU: 1 PID: 8403 at fs/io-wq.c:244 io_wqe_enqueue+0x6f0/0x860 fs/io-wq.c:751 Modules linked in: CPU: 1 PID: 8403 Comm: syz-executor253 Not tainted 5.13.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_wqe_wake_worker fs/io-wq.c:244 [inline] RIP: 0010:io_wqe_enqueue+0x6f0/0x860 fs/io-wq.c:751 Code: c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 89 2c 00 00 e8 24 17 91 ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 10 17 91 ff <0f> 0b e9 aa fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 33 f9 RSP: 0018:ffffc90000eefb78 EFLAGS: 00010293 RAX: ffffffff81edf3e0 RBX: 0000000000000000 RCX: ffff888019a78000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000010 R08: ffffffff81edf184 R09: ffffed10052d3615 R10: ffffed10052d3615 R11: 0000000000000000 R12: ffff88802969b098 R13: 1ffff110052d3613 R14: dffffc0000000000 R15: ffff88802969b0e8 FS: 0000000001df3300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000180 CR3: 0000000028c15000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: io_queue_async_work+0x246/0x540 fs/io_uring.c:1274 __io_queue_sqe+0xcea/0xfc0 fs/io_uring.c:6438 __io_req_task_submit fs/io_uring.c:2039 [inline] io_async_task_func+0x549/0x9f0 fs/io_uring.c:5074 __tctx_task_work fs/io_uring.c:1910 [inline] tctx_task_work+0x1cd/0x320 fs/io_uring.c:1924 task_work_run+0x146/0x1c0 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:212 [inline] handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x9b/0x200 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x26/0x70 kernel/entry/common.c:301 do_syscall_64+0x4b/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x43f109 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc7ebfa218 EFLAGS: 00000246 ORIG_RAX: 0000000000000030 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000043f109 RDX: 000000000043f109 RSI: 0000000000000001 RDI: 0000000000000004 RBP: 00000000004030f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403180 R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488