syzbot


INFO: task hung in lru_add_drain_all
Status: upstream: reported C repro on 2020/07/04 23:22
Reported-by: syzbot+1053252c4289b5f73548@syzkaller.appspotmail.com
First crash: 308d, last: 13d

Cause bisection: introduced by (bisect log) [ignored commit]:
commit f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10
Author: Andrey Konovalov <andreyknvl@google.com>
Date: Mon Feb 24 16:13:03 2020 +0000

  usb: gadget: add raw-gadget interface

Crash: INFO: task hung in synchronize_rcu (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in lru_add_drain_all 1 76d 76d 0/1 upstream: reported on 2021/02/04 15:54

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2021/04/01 06:04 net-next 04080634 1880b4a9 .config log report syz C
ci-upstream-net-kasan-gce 2020/12/05 00:55 net-next 7f356166 1880b4a9 .config log report syz C
ci-upstream-net-kasan-gce 2020/11/05 00:31 net-next 3fb6928b 1880b4a9 .config log report syz C
Crashes (21):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2020/10/06 00:06 net-next c2568c8c 1880b4a9 .config log report syz C
ci-upstream-net-kasan-gce 2020/10/03 16:31 net-next 678cdd49 2653fa43 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/06/30 23:01 linux-next c28e58ee 917afeaa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/04/08 05:26 upstream 3a229812 6a81331a .config log report info INFO: task hung in lru_add_drain_all
ci-upstream-kasan-gce-root 2021/04/02 22:35 upstream 1678e493 6a81331a .config log report info INFO: task hung in lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/02/03 04:10 bpf 3aaf0a27 624dad51 .config log report info INFO: task hung in lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/02/01 10:01 bpf 06cc6e5d fc9fd31e .config log report info INFO: task hung in lru_add_drain_all
ci-upstream-bpf-next-kasan-gce 2021/01/30 23:03 bpf-next 61ca36c8 fc9fd31e .config log report info INFO: task hung in lru_add_drain_all
ci-upstream-linux-next-kasan-gce-root 2021/02/26 19:05 linux-next d01f2f7e 4c37c133 .config log report info INFO: task hung in lru_add_drain_all
ci-upstream-kasan-gce-root 2020/12/08 08:23 upstream cd796ed3 51a9082e .config log report info
ci-upstream-kasan-gce 2020/07/21 11:56 upstream 4fa640dc d88894e6 .config log report
ci-upstream-kasan-gce 2020/06/17 09:49 upstream 7ae77150 b9f3810b .config log report
ci-upstream-bpf-next-kasan-gce 2021/01/01 18:55 bpf-next 482ec343 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 13:37 net-next 678cdd49 2653fa43 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 05:25 net-next 678cdd49 2653fa43 .config log report info
ci-upstream-net-kasan-gce 2020/09/20 09:26 net-next a5a3303e 53ce8104 .config log report info
ci-upstream-net-kasan-gce 2020/09/20 04:03 net-next a5a3303e 53ce8104 .config log report info
ci-upstream-net-kasan-gce 2020/09/15 13:44 net-next ed6d9b02 6989d6f6 .config log report info
ci-upstream-net-kasan-gce 2020/08/07 13:19 net-next bfdd5aaa cb436c69 .config log report
ci-upstream-net-kasan-gce 2020/07/16 08:05 net-next 8635764b f3bec699 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/28 18:21 linux-next 663b07a4 6bfdbe89 .config log report info