syzbot


inconsistent lock state in sco_conn_del
Status: upstream: reported C repro on 2020/08/11 17:07
Reported-by: syzbot+65684128cd7c35bc66a1@syzkaller.appspotmail.com
First crash: 49d, last: 4d17h

Cause bisection: introduced by (bisect log):

commit 135b8b37bd91cc82f83e98fca109b80375f5317e
Author: Kenny Yu <kennyyu@fb.com>
Date: Tue Jun 21 18:04:36 2016 +0000

  cgroup: Add pids controller event when fork fails because of pid limit

Crash: INFO: suspicious RCU usage in pids_can_fork (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.14 inconsistent lock state in sco_conn_del 8 3d21h 59d 0/1 upstream: reported on 2020/07/31 12:31
linux-4.19 inconsistent lock state in sco_conn_del 1 21d 21d 0/1 upstream: reported on 2020/09/07 19:17

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-selinux-root 2020/09/12 01:34 upstream e8878ab8 79fb24e2 .config log report syz C davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/09/24 12:38 linux-next dcf2427b 54289b08 .config log report syz C davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/16 03:01 upstream c9c9735c 424dd8e7 .config log report davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2020/08/14 04:47 upstream 990f2273 54ce1ed6 .config log report davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/08/11 02:41 linux-next f80535b9 7adc7b65 .config log report davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org