syzbot


possible deadlock in media_devnode_release
Status: upstream: reported C repro on 2020/05/23 17:04
Reported-by: syzbot+e3c234427cd464510547@syzkaller.appspotmail.com
First crash: 11d, last: 9d09h

Cause bisection: introduced by (bisect log):

commit 4ef12f7198023c09ad6d25b652bd8748c965c7fa
Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed May 13 15:18:40 2020 +0000

  kobject: Make sure the parent does not get released before its children

Crash: possible deadlock in media_devnode_release (log)
Repro: C syz .config

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-linux-next-kasan-gce-root 2020/05/23 04:57 linux-next c11d28ab 9682898d .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-linux-next-kasan-gce-root 2020/05/24 19:03 linux-next c11d28ab bd28eb9d .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-linux-next-kasan-gce-root 2020/05/23 04:41 linux-next c11d28ab 9682898d .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com