------------[ cut here ]------------
WARNING: CPU: 1 PID: 9600 at fs/io_uring.c:1164 req_ref_get fs/io_uring.c:1164 [inline]
WARNING: CPU: 1 PID: 9600 at fs/io_uring.c:1164 io_wq_submit_work+0x272/0x300 fs/io_uring.c:6731
Modules linked in:
CPU: 1 PID: 9600 Comm: iou-sqp-9599 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:req_ref_get fs/io_uring.c:1164 [inline]
RIP: 0010:io_wq_submit_work+0x272/0x300 fs/io_uring.c:6731
Code: e8 23 1d 91 ff 83 fb 7f 76 1b e8 d9 15 91 ff be 04 00 00 00 4c 89 ef e8 cc 78 d8 ff f0 ff 45 a4 e9 41 fe ff ff e8 be 15 91 ff <0f> 0b eb dc e8 b5 15 91 ff 4c 89 e7 e8 ad dc fb ff 48 85 c0 49 89
RSP: 0018:ffffc90019027ac0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 000000000000007f RCX: 0000000000000000
RDX: ffff88807c6b1c80 RSI: ffffffff81e4fbe2 RDI: 0000000000000003
RBP: ffff888024a16478 R08: 000000000000007f R09: ffff888024a1641f
R10: ffffffff81e4fbbd R11: 0000000000000000 R12: ffff888024a163c0
R13: ffff888024a1641c R14: ffff888024a16418 R15: 0000000000100000
FS:  00007f2e0a324700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020081000 CR3: 00000000aea9f000 CR4: 0000000000350ef0
Call Trace:
 io_run_cancel fs/io-wq.c:809 [inline]
 io_acct_cancel_pending_work.isra.0+0x2a9/0x5e0 fs/io-wq.c:950
 io_wqe_cancel_pending_work+0x6c/0x130 fs/io-wq.c:968
 io_wq_destroy fs/io-wq.c:1185 [inline]
 io_wq_put_and_exit+0x7d1/0xc70 fs/io-wq.c:1198
 io_uring_clean_tctx fs/io_uring.c:9607 [inline]
 io_uring_cancel_generic+0x5fe/0x740 fs/io_uring.c:9687
 io_sq_thread+0xaf4/0x1370 fs/io_uring.c:7414
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295