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=148e8665a00000 start commit: 904d88d7 qmi_wwan: Fix out-of-bounds read git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=168e8665a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=128e8665a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=137ec2016ea3870d dashboard link: https://syzkaller.appspot.com/bug?extid=4207c7f3a443366d8aa2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15576c71a00000 Reported-by: syzbot+4207c7f3a443366d8aa2@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: e9db4ef6bf4c ("bpf: sockhash fix omitted bucket lock in sock_close") For information about bisection process see: https://goo.gl/tpsmEJ#bisection