[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   20.470325] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available)
[?25l[?1c7[ ok 8[?25h[?0c.
[   21.504185] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   21.881109] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available)
[   22.616742] random: sshd: uninitialized urandom read (32 bytes read, 71 bits of entropy available)
[   25.381182] random: sshd: uninitialized urandom read (32 bytes read, 76 bits of entropy available)
Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts.
[   31.039533] random: sshd: uninitialized urandom read (32 bytes read, 79 bits of entropy available)
2018/08/29 04:32:28 parsed 1 programs
[   32.614890] random: cc1: uninitialized urandom read (8 bytes read, 81 bits of entropy available)
2018/08/29 04:32:31 executed programs: 0
[   33.689061] IPVS: Creating netns size=2552 id=1
[   33.932519] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[   33.948289] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[   34.032277] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready
[   34.047934] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[   34.130752] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready
[   34.146163] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready
[   34.164397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[   34.182103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[   34.927644] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[   34.965870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   38.646498] BUG: unable to handle kernel NULL pointer dereference at 0000000000000080
[   38.654713] IP: [<ffffffff835aab88>] l2tp_session_create+0x948/0x1030
[   38.661392] PGD b5705067 PUD b5541067 PMD 0 
[   38.666142] Oops: 0002 [#1] PREEMPT SMP KASAN
[   38.671082] Dumping ftrace buffer:
[   38.674592]    (ftrace buffer empty)
[   38.678278] Modules linked in:
[   38.681567] CPU: 0 PID: 5070 Comm: syz-executor0 Not tainted 4.4.153-g5e24b4e #26
[   38.689156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   38.698747] task: ffff8801c8e86000 task.stack: ffff8800b12a8000
[   38.704788] RIP: 0010:[<ffffffff835aab88>]  [<ffffffff835aab88>] l2tp_session_create+0x948/0x1030
[   38.713898] RSP: 0018:ffff8800b12afad0  EFLAGS: 00010246
[   38.719319] RAX: 0000000000000000 RBX: ffff8800b445af00 RCX: 0000000000000006
[   38.726562] RDX: 1ffff1001688b610 RSI: ffffffff835a4c93 RDI: ffff8800b445b080
[   38.733806] RBP: ffff8800b12afb40 R08: 000000000000000a R09: 000000000000ffff
[   38.741053] R10: ffffed001688b4b8 R11: ffffffff8463a200 R12: ffff8800b445a5a8
[   38.748296] R13: ffff8800b12afc58 R14: ffff8800b445a500 R15: ffffffff835a38c0
[   38.755542] FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f77c9b40
[   38.763743] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   38.769599] CR2: 0000000000000080 CR3: 00000000ac875000 CR4: 00000000001606f0
[   38.776844] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   38.784091] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   38.791340] Stack:
[   38.793472]  ffffffff81140aba ffff8800b445af20 ffff8800b445a658 ffff8800b445a510
[   38.801466]  ffffffff838cc1e0 ffff8800b445a5b0 ffff8800b445a650 ffff8800b445afe0
[   38.809460]  ffffffff00000000 ffff8801ca3fbb80 0000000000000000 ffff8801ca3fbbb0
[   38.817454] Call Trace:
[   38.820020]  [<ffffffff81140aba>] ? __local_bh_enable_ip+0x6a/0xd0
[   38.826351]  [<ffffffff838cc1e0>] ? _raw_read_unlock_bh+0x30/0x40
[   38.832559]  [<ffffffff835aef80>] pppol2tp_connect+0x10f0/0x1910
[   38.838680]  [<ffffffff835ade90>] ? pppol2tp_recv+0x320/0x320
[   38.844544]  [<ffffffff81c5740f>] ? security_socket_connect+0x8f/0xc0
[   38.851098]  [<ffffffff82f27ef8>] SYSC_connect+0x1b8/0x300
[   38.856703]  [<ffffffff82f27d40>] ? SYSC_bind+0x280/0x280
[   38.862226]  [<ffffffff8157ff20>] ? get_unused_fd_flags+0xd0/0xd0
[   38.868433]  [<ffffffff812d5940>] ? compat_SyS_get_robust_list+0x310/0x310
[   38.875419]  [<ffffffff82f29f61>] ? SyS_socket+0x121/0x1b0
[   38.881016]  [<ffffffff82f29e40>] ? move_addr_to_kernel+0x50/0x50
[   38.887222]  [<ffffffff82f2a844>] SyS_connect+0x24/0x30
[   38.892561]  [<ffffffff82f2a820>] ? SyS_accept+0x30/0x30
[   38.897989]  [<ffffffff81006d94>] do_fast_syscall_32+0x324/0x8b0
[   38.904113]  [<ffffffff838ce1c3>] sysenter_flags_fixed+0xd/0x1a
[   38.910157] Code: 00 00 48 8d bb 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 36 06 00 00 48 8b 83 80 01 00 00 <f0> ff 80 80 00 00 00 48 8d 43 20 48 89 c7 48 89 45 b0 e8 f1 13 
[   38.937111] RIP  [<ffffffff835aab88>] l2tp_session_create+0x948/0x1030
[   38.943885]  RSP <ffff8800b12afad0>
[   38.947482] CR2: 0000000000000080
[   38.951420] ---[ end trace 8c119364e6c4fb05 ]---
[   38.956838] Kernel panic - not syncing: Fatal exception
[   38.962507] Dumping ftrace buffer:
[   38.966022]    (ftrace buffer empty)
[   38.969704] Kernel Offset: disabled
[   38.973301] Rebooting in 86400 seconds..