[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   15.864859] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   17.908074] random: sshd: uninitialized urandom read (32 bytes read)
[   18.350017] random: sshd: uninitialized urandom read (32 bytes read)
[   18.803587] random: sshd: uninitialized urandom read (32 bytes read)
[   18.934779] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.16' (ECDSA) to the list of known hosts.
[   24.793445] random: sshd: uninitialized urandom read (32 bytes read)
2018/08/04 02:23:01 parsed 1 programs
[   26.263442] random: cc1: uninitialized urandom read (8 bytes read)
2018/08/04 02:23:03 executed programs: 0
[   27.123441] IPVS: Creating netns size=2536 id=1
[   27.242459] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[   27.254195] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[   27.297063] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready
[   27.309481] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[   27.351752] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready
[   27.362963] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready
[   27.374619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[   27.394850] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[   27.868628] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[   27.893110] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[   27.899299] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[   27.906063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   28.177513] ------------[ cut here ]------------
[   28.182296] WARNING: CPU: 1 PID: 0 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x598/0x760
[   28.190790] Kernel panic - not syncing: panic_on_warn set ...
[   28.190790] 
[   28.198143] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.117-g8b21e85 #23
[   28.205136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.214470]  ffff8801db307cc0 ffffffff81eb4be9 ffffffff83c48980 00000000ffffffff
[   28.222479]  0000000000000000 0000000000000001 00000000000000a7 ffff8801db307d80
[   28.230485]  ffffffff81421c85 0000000041b58ab3 ffffffff843bc020 ffffffff81421ac6
[   28.238472] Call Trace:
[   28.241031]  <IRQ> [   28.243075]  [<ffffffff81eb4be9>] dump_stack+0xc1/0x128
[   28.248435]  [<ffffffff81421c85>] panic+0x1bf/0x3bc
[   28.253422]  [<ffffffff81421ac6>] ? add_taint.cold.6+0x16/0x16
[   28.259365]  [<ffffffff81421f56>] ? __warn.cold.9+0xa6/0x17f
[   28.265147]  [<ffffffff83427628>] ? inet_sock_destruct+0x598/0x760
[   28.271439]  [<ffffffff81421f71>] __warn.cold.9+0xc1/0x17f
[   28.277039]  [<ffffffff836c01cf>] ? l2tp_tunnel_closeall+0x2af/0x350
[   28.283506]  [<ffffffff8113683c>] warn_slowpath_null+0x2c/0x40
[   28.289457]  [<ffffffff83427628>] inet_sock_destruct+0x598/0x760
[   28.295576]  [<ffffffff83427090>] ? ipv4_mib_init_net+0x570/0x570
[   28.301781]  [<ffffffff836c0a19>] l2tp_tunnel_destruct+0x339/0x590
[   28.308083]  [<ffffffff836c088a>] ? l2tp_tunnel_destruct+0x1aa/0x590
[   28.314546]  [<ffffffff836c06e0>] ? l2tp_tunnel_del_work+0x470/0x470
[   28.321021]  [<ffffffff83023095>] __sk_destruct+0x55/0x590
[   28.326630]  [<ffffffff8128780e>] rcu_process_callbacks+0x8ae/0x12b0
[   28.333097]  [<ffffffff812878ee>] ? rcu_process_callbacks+0x98e/0x12b0
[   28.339738]  [<ffffffff83023040>] ? sock_set_timeout+0x210/0x210
[   28.345859]  [<ffffffff83a037fb>] __do_softirq+0x20b/0x937
[   28.351460]  [<ffffffff8114b277>] irq_exit+0x147/0x190
[   28.356720]  [<ffffffff83a023e1>] smp_apic_timer_interrupt+0x81/0xa0
[   28.363187]  [<ffffffff839fe570>] apic_timer_interrupt+0xa0/0xb0
[   28.369311]  <EOI> [   28.371360]  [<ffffffff839fb816>] ? native_safe_halt+0x6/0x10
[   28.377253]  [<ffffffff81235c8d>] ? trace_hardirqs_on+0xd/0x10
[   28.383203]  [<ffffffff839fae55>] default_idle+0x55/0x360
[   28.388718]  [<ffffffff8106ae20>] arch_cpu_idle+0x10/0x20
[   28.394237]  [<ffffffff839fbc75>] default_idle_call+0x45/0x60
[   28.400095]  [<ffffffff81223215>] cpu_startup_entry+0x2b5/0x380
[   28.406151]  [<ffffffff81222f60>] ? cpu_in_idle+0x20/0x20
[   28.411729]  [<ffffffff810aefa8>] start_secondary+0x328/0x400
[   28.417597]  [<ffffffff810aec80>] ? set_cpu_sibling_map+0x1300/0x1300
[   28.424635] Dumping ftrace buffer:
[   28.428173]    (ftrace buffer empty)
[   28.431857] Kernel Offset: disabled
[   28.435468] Rebooting in 86400 seconds..