syzbot has bisected this bug to:
commit 9121923c457d1d8667a6e3a67302c29e5c5add6b
Author: Jim Mattson <jmattson@xxxxxxxxxx>
Date: Thu Oct 24 23:03:26 2019 +0000
kvm: Allocate memslots and buses before calling kvm_arch_init_vm
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14b34f5ce00000
start commit: 9d234505 Merge tag 'hwmon-for-v5.4-rc6' of git://git.kerne..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=16b34f5ce00000
console output: https://syzkaller.appspot.com/x/log.txt?x=12b34f5ce00000
kernel config: https://syzkaller.appspot.com/x/.config?x=cbbed3e8d4eb64bf
dashboard link: https://syzkaller.appspot.com/bug?extid=89a8060879fa0bd2db4f
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13509b84e00000
Reported-by: syzbot+89a8060879fa0bd2db4f@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 9121923c457d ("kvm: Allocate memslots and buses before calling
kvm_arch_init_vm")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
