Warning: Permanently added '10.128.10.23' (ECDSA) to the list of known hosts. [ 34.705896] random: sshd: uninitialized urandom read (32 bytes read, 87 bits of entropy available) 2018/08/22 18:54:17 parsed 1 programs [ 35.805096] random: cc1: uninitialized urandom read (8 bytes read, 89 bits of entropy available) 2018/08/22 18:54:19 executed programs: 0 [ 37.284523] IPVS: Creating netns size=2552 id=1 [ 37.539614] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 37.555934] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 37.641309] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 37.657709] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 37.743707] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 37.759756] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 37.777040] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 37.794978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 38.575059] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 38.623186] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.662523] l2tp_core: tunl 4: sockfd_lookup(fd=5) returned -9 2018/08/22 18:54:24 executed programs: 276 [ 43.704953] l2tp_core: tunl 4: sockfd_lookup(fd=5) returned -9 [ 44.347666] BUG: unable to handle kernel NULL pointer dereference at 0000000000000080 [ 44.355932] IP: [<ffffffff835a6a3c>] l2tp_session_free+0x11c/0x200 [ 44.362363] PGD b5a94067 PUD b52a1067 PMD 0 [ 44.367154] Oops: 0002 [#1] PREEMPT SMP KASAN [ 44.372167] Dumping ftrace buffer: [ 44.375685] (ftrace buffer empty) [ 44.379383] Modules linked in: [ 44.382690] CPU: 1 PID: 5749 Comm: syz-executor0 Not tainted 4.4.151-ge917467 #84 [ 44.390291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.399637] task: ffff8800af22e000 task.stack: ffff8800aed00000 [ 44.405680] RIP: 0010:[<ffffffff835a6a3c>] [<ffffffff835a6a3c>] l2tp_session_free+0x11c/0x200 [ 44.414558] RSP: 0018:ffff8800aed07cd8 EFLAGS: 00010246 [ 44.419996] RAX: dffffc0000000000 RBX: ffff8801cd493400 RCX: 0000000000000000 [ 44.427271] RDX: 1ffff100162a1260 RSI: ffffffff835a6a11 RDI: ffff8800b1509300 [ 44.434536] RBP: ffff8800aed07cf8 R08: ffffffff853352c0 R09: 0000000000000000 [ 44.441794] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800b1509180 [ 44.449056] R13: ffff8801cd493408 R14: 0000000000000000 R15: ffffffff82f22e60 [ 44.456319] FS: 0000000001d7f940(0063) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 44.464575] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.470451] CR2: 0000000000000080 CR3: 00000000b3fe4000 CR4: 00000000001606f0 [ 44.477723] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.484987] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.492243] Stack: [ 44.494385] ffff8801ca604400 ffff8801cd493400 ffff8801ca6047d0 ffff8801ca6046d8 [ 44.502416] ffff8800aed07d20 ffffffff835b04b7 ffff8801ca604400 ffffffff835b03e0 [ 44.510421] ffff8800ae77d560 ffff8800aed07d48 ffffffff82f37eec ffff8801ca604400 [ 44.518422] Call Trace: [ 44.521003] [<ffffffff835b04b7>] pppol2tp_session_destruct+0xd7/0x110 [ 44.527663] [<ffffffff835b03e0>] ? pppol2tp_seq_start+0x4e0/0x4e0 [ 44.533981] [<ffffffff82f37eec>] sk_destruct+0x4c/0x4c0 [ 44.539426] [<ffffffff82f383af>] __sk_free+0x4f/0x220 [ 44.544704] [<ffffffff82f385b0>] sk_free+0x30/0x40 [ 44.549718] [<ffffffff835b128a>] pppol2tp_release+0x26a/0x310 [ 44.555685] [<ffffffff82f22d36>] sock_release+0x96/0x1c0 [ 44.561219] [<ffffffff82f22e76>] sock_close+0x16/0x20 [ 44.566508] [<ffffffff81528775>] __fput+0x235/0x6f0 [ 44.571621] [<ffffffff81528cb5>] ____fput+0x15/0x20 [ 44.576718] [<ffffffff8118ee4f>] task_work_run+0x10f/0x190 [ 44.582449] [<ffffffff8100362d>] exit_to_usermode_loop+0x13d/0x160 [ 44.588853] [<ffffffff81006535>] syscall_return_slowpath+0x1b5/0x1f0 [ 44.595454] [<ffffffff838cc2b5>] int_ret_from_sys_call+0x25/0xa3 [ 44.601669] Code: 49 8d bc 24 80 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d0 00 00 00 4d 8b b4 24 80 01 00 00 <f0> 41 ff 8e 80 00 00 00 74 64 e8 b5 db da fd e8 b0 db da fd 4c [ 44.628813] RIP [<ffffffff835a6a3c>] l2tp_session_free+0x11c/0x200 [ 44.635330] RSP <ffff8800aed07cd8> [ 44.638934] CR2: 0000000000000080 [ 44.642497] ---[ end trace 81376f97a217e2e3 ]--- [ 44.648683] Kernel panic - not syncing: Fatal exception [ 44.654398] Dumping ftrace buffer: [ 44.657930] (ftrace buffer empty) [ 44.661620] Kernel Offset: disabled [ 44.665230] Rebooting in 86400 seconds..