syzbot has bisected this bug to: commit e9db4ef6bf4ca9894bb324c76e01b8f1a16b2650 Author: John Fastabend <john.fastabend@xxxxxxxxx> Date: Sat Jun 30 13:17:47 2018 +0000 bpf: sockhash fix omitted bucket lock in sock_close bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16aac819a00000 start commit: 29f785ff Merge branch 'fixes' of git://git.kernel.org/pub/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=15aac819a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11aac819a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=e5c77f8090a3b96b dashboard link: https://syzkaller.appspot.com/bug?extid=0b224895cb9454584de1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1076d132a00000 Reported-by: syzbot+0b224895cb9454584de1@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: e9db4ef6bf4c ("bpf: sockhash fix omitted bucket lock in sock_close") For information about bisection process see: https://goo.gl/tpsmEJ#bisection