------------[ cut here ]------------ WARNING: CPU: 1 PID: 11028 at fs/io_uring.c:6082 io_try_cancel_userdata+0x30d/0x540 fs/io_uring.c:6082 Modules linked in: CPU: 1 PID: 11028 Comm: iou-wrk-11026 Not tainted 5.14.0-rc7-next-20210823-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_try_cancel_userdata+0x30d/0x540 fs/io_uring.c:6082 Code: 52 07 e8 66 67 95 ff 48 8b 3c 24 e8 ad 67 52 07 e9 71 fe ff ff e8 53 67 95 ff 41 bf 8e ff ff ff e9 61 fe ff ff e8 43 67 95 ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc90004fd7ac0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88806ff8a3c0 RCX: 0000000000000000 RDX: ffff88808de98000 RSI: ffffffff81e078fd RDI: ffff88806ff8a410 RBP: ffff88808de98000 R08: ffffffff899adde0 R09: ffffffff81e1e4e4 R10: 0000000000000027 R11: 000000000000000e R12: 1ffff920009faf59 R13: 0000000000012345 R14: ffff888023bb2000 R15: ffff88806ff8a420 FS: 00007fafd7a86700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 0000000077150000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: io_async_cancel fs/io_uring.c:6122 [inline] io_issue_sqe+0x22d5/0x67b0 fs/io_uring.c:6515 io_wq_submit_work+0x1d4/0x300 fs/io_uring.c:6619 io_worker_handle_work+0xa2d/0x1810 fs/io-wq.c:533 io_wqe_worker+0x2cc/0xbb0 fs/io-wq.c:582 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295