syzbot


WARNING in kernfs_create_dir_ns
Status: fixed on 2020/05/10 10:41
Reported-by: syzbot+38f5d5cf7ae88c46b11a@syzkaller.appspotmail.com
Fix commit: 810507fe locking/lockdep: Reuse freed chain_hlocks entries
First crash: 458d, last: 193d

Cause bisection: introduced by (bisect log):

commit 7f38abf220e2c800a2c451372e9f07ed5fd0ea49
Author: Hongjie Fang <hongjiefang@asrmicro.com>
Date: Tue Jul 31 02:55:09 2018 +0000

  mmc: core: improve reasonableness of bus width setting for HS400es

Crash: WARNING in batadv_mcast_mla_tt_retract (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log):

commit 810507fe6fd5ff3de429121adff49523fabb643a
Author: Waiman Long <longman@redhat.com>
Date: Thu Feb 6 15:24:08 2020 +0000

  locking/lockdep: Reuse freed chain_hlocks entries


Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2019/06/30 05:40 upstream 72825454 7509bf36 .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-kasan-gce-smack-root 2019/06/30 04:23 upstream 72825454 7509bf36 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-kasan-gce-smack-root 2019/06/25 11:55 upstream 4b972a01 82c13b6b .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org