syzbot


INFO: task can't die in msleep
Status: upstream: reported C repro on 2021/03/29 16:34
Reported-by: syzbot+3a9c5d436cf1afce2cd6@syzkaller.appspotmail.com
First crash: 120d, last: 120d

Cause bisection: introduced by (bisect log) :
commit 766b0515d5bec4b780750773ed3009b148df8c0a
Author: Jakub Kicinski <kuba@kernel.org>
Date: Wed Jan 6 18:40:07 2021 +0000

  net: make sure devices go through netdev_wait_all_refs

Crash: unregister_netdevice: waiting for DEV to become free (log)
Repro: C syz .config

Sample crash report:

Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2021/03/26 07:13 linux-next b4f20b70784a 6a383ecf .config log report syz C INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/26 09:47 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/26 09:40 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 22:15 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 21:53 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 21:19 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 20:44 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 20:04 linux-next b4f20b70784a 6a383ecf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 16:45 linux-next b4f20b70784a 607e3baf .config log report info INFO: task can't die in msleep
ci-upstream-linux-next-kasan-gce-root 2021/03/25 16:31 linux-next b4f20b70784a 607e3baf .config log report info INFO: task can't die in msleep