Hello io-uring maintainers/developers, This is a 30-day syzbot report for the io-uring subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/io-uring During the period, 5 new issues were detected and 0 were fixed. In total, 49 issues are still open and 105 have been fixed so far. Some of the still happening issues: Crashes Repro Title 3393 Yes WARNING in io_ring_exit_work https://syzkaller.appspot.com/bug?extid=00e15cda746c5bc70e24 3241 Yes general protection fault in try_to_wake_up (2) https://syzkaller.appspot.com/bug?extid=b4a81dc8727e513f364d 1873 Yes WARNING in split_huge_page_to_list (2) https://syzkaller.appspot.com/bug?extid=07a218429c8d19b1fb25 772 Yes INFO: task hung in io_ring_exit_work https://syzkaller.appspot.com/bug?extid=93f72b3885406bb09e0d 718 Yes KASAN: use-after-free Read in io_poll_remove_entries https://syzkaller.appspot.com/bug?extid=cd301bb6523ea8cc8ca2 443 Yes KMSAN: uninit-value in io_req_cqe_overflow https://syzkaller.appspot.com/bug?extid=12dde80bf174ac8ae285 73 Yes INFO: task hung in io_wq_put_and_exit (3) https://syzkaller.appspot.com/bug?extid=adb05ed2853417be49ce 38 Yes KASAN: use-after-free Read in nfc_llcp_find_local https://syzkaller.appspot.com/bug?extid=e7ac69e6a5d806180b40 --- 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.