syzbot has bisected this bug to: commit f40b6ae2b612446dc970d7b51eeec47bd1619f82 Author: David Ahern <dsahern@xxxxxxxxx> Date: Thu May 23 03:27:55 2019 +0000 ipv6: Move pcpu cached routes to fib6_nh bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13c969a6a00000 start commit: 07c3bbdb samples: bpf: print a warning about headers_install git tree: bpf-next final crash: https://syzkaller.appspot.com/x/report.txt?x=102969a6a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=17c969a6a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=b7b54c66298f8420 dashboard link: https://syzkaller.appspot.com/bug?extid=58d8f704b86e4e3fb4d3 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117f50e1a00000 Reported-by: syzbot+58d8f704b86e4e3fb4d3@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: f40b6ae2b612 ("ipv6: Move pcpu cached routes to fib6_nh") For information about bisection process see: https://goo.gl/tpsmEJ#bisection