syzbot has bisected this issue to:
commit 58956317c8de52009d1a38a721474c24aef74fe7
Author: David Ahern
Date: Fri Dec 7 20:24:57 2018 +
neighbor: Improve garbage collection
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12d3167590
start commit: 12450081 libbpf: Fix
syzbot has found a reproducer for the following issue on:
HEAD commit:12450081 libbpf: Fix native endian assumption when parsing..
git tree: bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=17fedf8b90
kernel config: https://syzkaller.appspot.com/x/.config?x=5ac0d21536db
