syzbot


BUG: soft lockup in __do_sys_clock_adjtime
Status: upstream: reported C repro on 2020/07/07 01:42
Reported-by: syzbot+b63f85efcdedbba8b3be@syzkaller.appspotmail.com
First crash: 295d, last: 21d

Cause bisection: introduced by (bisect log) :
commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

  tc: Add support for configuring the taprio scheduler

Crash: INFO: rcu detected stall in smp_call_function (log)
Repro: C syz .config

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/04/02 02:30 upstream 1678e493 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/03/01 15:11 upstream fe07bfda 51095195 .config log syz C
ci-upstream-kasan-gce-selinux-root 2021/01/15 17:27 upstream 5ee88057 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/12/16 03:45 upstream e87b0708 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/11/08 14:00 upstream 4429f14a 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/10/09 13:32 upstream 583090b1 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/09/06 12:49 upstream dd9fb9bb 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/08/06 13:00 upstream 47ec5303 51095195 .config log report syz C
Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/07/07 01:42 upstream 7cc2a8ea 51095195 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/07/02 03:53 upstream cd77006e bed10395 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/03 19:57 linux-next aab20039 bed10395 .config log report