------------[ cut here ]------------
WARNING: CPU: 1 PID: 15736 at fs/io_uring.c:1164 req_ref_get fs/io_uring.c:1164 [inline]
WARNING: CPU: 1 PID: 15736 at fs/io_uring.c:1164 io_wq_submit_work+0x350/0x600 fs/io_uring.c:6731
Modules linked in:
CPU: 1 PID: 15736 Comm: syz-executor.5 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+0x350/0x600 fs/io_uring.c:6731
Code: 04 00 00 00 e8 51 81 d9 ff 48 89 e8 48 c1 e8 03 42 8a 04 30 84 c0 0f 85 62 02 00 00 c7 45 00 01 00 00 00 eb 1b e8 b0 41 8e ff <0f> 0b e9 b0 fd ff ff e8 a4 41 8e ff 49 be 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900023bf648 EFLAGS: 00010293
RAX: ffffffff81f406b0 RBX: 000000000000007f RCX: ffff88808b633900
RDX: 0000000000000000 RSI: 000000000000007f RDI: 0000000000000080
RBP: ffff88807685f2dc R08: ffffffff81f40456 R09: ffffed100ed0be5c
R10: ffffed100ed0be5c R11: 0000000000000000 R12: ffff88807685f2d8
R13: ffff88807685f280 R14: ffff88807685f338 R15: 1ffff1100ed0be5b
FS:  00007ff7bd768700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7bd747718 CR3: 000000007d26c000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 io_run_cancel fs/io-wq.c:809 [inline]
 io_acct_cancel_pending_work+0x382/0x590 fs/io-wq.c:950
 io_wqe_cancel_pending_work fs/io-wq.c:968 [inline]
 io_wq_destroy fs/io-wq.c:1185 [inline]
 io_wq_put_and_exit+0xb9e/0xde0 fs/io-wq.c:1198
 io_uring_clean_tctx fs/io_uring.c:9607 [inline]
 io_uring_cancel_generic+0x9d3/0xba0 fs/io_uring.c:9687
 io_uring_files_cancel include/linux/io_uring.h:16 [inline]
 do_exit+0x280/0x2580 kernel/exit.c:780
 do_group_exit+0x168/0x2d0 kernel/exit.c:922
 get_signal+0x16e0/0x20c0 kernel/signal.c:2868
 arch_do_signal_or_restart+0x9c/0x730 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x191/0x220 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:302
 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
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:00007ff7bd768188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000002 RBX: 000000000056c038 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 00000000000002ff RDI: 0000000000000006
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffd6a2db1ff R14: 00007ff7bd768300 R15: 0000000000022000