Hello, syzbot found the following issue on: HEAD commit: c35bd4e42885 Add linux-next specific files for 20221124 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=130f4e73880000 kernel config: https://syzkaller.appspot.com/x/.config?x=11e19c740a0b2926 dashboard link: https://syzkaller.appspot.com/bug?extid=bc54516b728ef2a08d76 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10082015880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11107a05880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/968fee464d14/disk-c35bd4e4.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4f46fe801b5b/vmlinux-c35bd4e4.xz kernel image: https://storage.googleapis.com/syzbot-assets/c2cdf8fb264e/bzImage-c35bd4e4.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+bc54516b728ef2a08d76@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 151 at io_uring/io_uring.c:872 io_req_complete_failed+0x223/0x280 io_uring/io_uring.c:872 Modules linked in: CPU: 0 PID: 151 Comm: kworker/0:2 Not tainted 6.1.0-rc6-next-20221124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: events io_fallback_req_func RIP: 0010:io_req_complete_failed+0x223/0x280 io_uring/io_uring.c:872 Code: 58 be ff ff ff ff 48 8d b8 a8 00 00 00 e8 a5 24 03 06 31 ff 89 c3 89 c6 e8 3a 43 7d fd 85 db 0f 85 66 fe ff ff e8 7d 46 7d fd <0f> 0b e9 5a fe ff ff e8 91 66 cb fd e9 06 fe ff ff e8 67 67 cb fd RSP: 0018:ffffc90002e9fc28 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801a690000 RSI: ffffffff84038513 RDI: 0000000000000005 RBP: ffff88807e9aa3c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 1ffffffff21621e8 R12: 0000000000000016 R13: 00000000ffffff83 R14: dffffc0000000000 R15: ffffffffffffff78 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe6e758a01d CR3: 000000000c48e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> io_apoll_task_func+0x14d/0x170 io_uring/poll.c:319 io_fallback_req_func+0xfd/0x1b2 io_uring/io_uring.c:250 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
