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WARNING: CPU: 0 PID: 5 at fs/io_uring.c:6080 io_try_cancel_userdata+0x3b5/0x620 fs/io_uring.c:6080
Modules linked in:
CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.14.0-rc7-next-20210826-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events io_fallback_req_func
RIP: 0010:io_try_cancel_userdata+0x3b5/0x620 fs/io_uring.c:6080
Code: 44 89 f0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 92 67 95 ff 65 48 8b 04 25 40 f0 01 00 49 39 c6 0f 84 b0 fd ff ff e8 7b 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:ffffc90000ca7bb8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888062d32280 RCX: 0000000000000000
RDX: ffff888010e40000 RSI: ffffffff81e07a85 RDI: 0000000000000003
RBP: 1ffff92000194f78 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81e077e7 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88803eef2000 R14: ffff88807e863900 R15: ffff888062d322e0
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564a7ab2cd38 CR3: 000000003520d000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 io_req_task_link_timeout+0x73/0x290 fs/io_uring.c:6708
 io_fallback_req_func+0x1c7/0x3e0 fs/io_uring.c:1242
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295