syzbot


WARNING in io_uring_setup (2)
Status: upstream: reported C repro on 2021/04/29 15:01
Reported-by: syzbot+1eca5b0d7ac82b74d347@syzkaller.appspotmail.com
Fix commit: 47b228ce io_uring: fix unchecked error in switch_start()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32 ci-qemu2-riscv64 ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 14d, last: 5d04h

Cause bisection: introduced by (bisect log) :
commit eae071c9b4cefbcc3f985c5abf9a6e32c1608ca9
Author: Pavel Begunkov <asml.silence@gmail.com>
Date: Sun Apr 25 13:32:24 2021 +0000

  io_uring: prepare fixed rw for dynanic buffers

Crash: WARNING in io_rsrc_node_switch (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in io_uring_setup C done 3601 741d 761d 13/22 fixed on 2019/05/27 12:48
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/29 17:56 18m asml.silence@gmail.com git://git.kernel.dk/linux-block io_uring-5.13 OK

Sample crash report:

Crashes (40):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/04/29 14:15 upstream d72cd4ad 77e2b668 .config log report syz C WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/08 17:30 upstream d2b6f8a1 bc5434be .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/07 05:15 upstream d2b6f8a1 06585184 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/07 05:09 upstream d2b6f8a1 06585184 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/07 02:49 upstream d2b6f8a1 06585184 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/06 13:21 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/06 11:15 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/06 10:16 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/06 09:25 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/06 08:33 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/05 21:40 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/05 20:30 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/05 14:54 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/05 12:48 upstream d2b6f8a1 06c27ff5 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/04 17:37 upstream d2b6f8a1 09efdd63 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/04 16:05 upstream d2b6f8a1 09efdd63 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/04 10:15 upstream d2b6f8a1 09efdd63 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/04 09:45 upstream d2b6f8a1 09efdd63 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/04 02:49 upstream d2b6f8a1 ad61f371 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/03 23:28 upstream d2b6f8a1 ad61f371 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/03 11:58 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/03 04:42 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 20:07 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 16:19 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 15:26 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 07:59 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 07:03 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 06:13 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/02 03:01 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/01 16:35 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/05/01 01:02 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/30 15:31 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/30 14:43 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/30 12:48 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/30 09:13 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/30 05:44 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/29 20:30 upstream d2b6f8a1 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/29 18:47 upstream d72cd4ad 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/29 15:49 upstream d72cd4ad 77e2b668 .config log report info WARNING in io_uring_setup
ci-upstream-kasan-gce-smack-root 2021/04/29 13:55 upstream d72cd4ad 77e2b668 .config log report info WARNING in io_uring_setup