[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   11.941828] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.
[   12.890692] random: sshd: uninitialized urandom read (32 bytes read)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   13.211478] random: sshd: uninitialized urandom read (32 bytes read)
[   13.726575] random: sshd: uninitialized urandom read (32 bytes read)
[   13.867918] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts.
[   19.218494] random: sshd: uninitialized urandom read (32 bytes read)
2018/08/04 15:57:26 parsed 1 programs
[   20.805334] random: cc1: uninitialized urandom read (8 bytes read)
2018/08/04 15:57:28 executed programs: 0
[   21.822655] IPVS: Creating netns size=2536 id=1
[   21.944343] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[   21.955832] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[   21.997927] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready
[   22.009388] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[   22.051899] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready
[   22.063369] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready
[   22.075670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[   22.091962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[   22.567964] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[   22.592126] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[   22.598242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[   22.605809] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   22.908706] ------------[ cut here ]------------
[   22.913519] WARNING: CPU: 0 PID: 0 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x598/0x760
[   22.921997] Kernel panic - not syncing: panic_on_warn set ...
[   22.921997] 
[   22.929337] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.117-g8b21e85 #23
[   22.936321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   22.945650]  ffff8801db207cc0 ffffffff81eb4be9 ffffffff83c48980 00000000ffffffff
[   22.953641]  0000000000000000 0000000000000000 00000000000000a7 ffff8801db207d80
[   22.961678]  ffffffff81421c85 0000000041b58ab3 ffffffff843bc020 ffffffff81421ac6
[   22.969686] Call Trace:
[   22.972244]  <IRQ> [   22.974288]  [<ffffffff81eb4be9>] dump_stack+0xc1/0x128
[   22.979646]  [<ffffffff81421c85>] panic+0x1bf/0x3bc
[   22.984639]  [<ffffffff81421ac6>] ? add_taint.cold.6+0x16/0x16
[   22.990583]  [<ffffffff81421f56>] ? __warn.cold.9+0xa6/0x17f
[   22.996359]  [<ffffffff83427628>] ? inet_sock_destruct+0x598/0x760
[   23.002651]  [<ffffffff81421f71>] __warn.cold.9+0xc1/0x17f
[   23.008686]  [<ffffffff836c01cf>] ? l2tp_tunnel_closeall+0x2af/0x350
[   23.015153]  [<ffffffff8113683c>] warn_slowpath_null+0x2c/0x40
[   23.021102]  [<ffffffff83427628>] inet_sock_destruct+0x598/0x760
[   23.027229]  [<ffffffff83427090>] ? ipv4_mib_init_net+0x570/0x570
[   23.033436]  [<ffffffff836c0a19>] l2tp_tunnel_destruct+0x339/0x590
[   23.039727]  [<ffffffff836c088a>] ? l2tp_tunnel_destruct+0x1aa/0x590
[   23.046192]  [<ffffffff836c06e0>] ? l2tp_tunnel_del_work+0x470/0x470
[   23.052835]  [<ffffffff83023095>] __sk_destruct+0x55/0x590
[   23.058440]  [<ffffffff8128780e>] rcu_process_callbacks+0x8ae/0x12b0
[   23.064912]  [<ffffffff812878ee>] ? rcu_process_callbacks+0x98e/0x12b0
[   23.071580]  [<ffffffff83023040>] ? sock_set_timeout+0x210/0x210
[   23.077703]  [<ffffffff83a037fb>] __do_softirq+0x20b/0x937
[   23.083301]  [<ffffffff8114b277>] irq_exit+0x147/0x190
[   23.088553]  [<ffffffff83a023e1>] smp_apic_timer_interrupt+0x81/0xa0
[   23.095023]  [<ffffffff839fe570>] apic_timer_interrupt+0xa0/0xb0
[   23.101140]  <EOI> [   23.103190]  [<ffffffff839fb816>] ? native_safe_halt+0x6/0x10
[   23.109082]  [<ffffffff839fae55>] default_idle+0x55/0x360
[   23.114624]  [<ffffffff8106ae20>] arch_cpu_idle+0x10/0x20
[   23.120180]  [<ffffffff839fbc75>] default_idle_call+0x45/0x60
[   23.126052]  [<ffffffff81223215>] cpu_startup_entry+0x2b5/0x380
[   23.132091]  [<ffffffff81222f60>] ? cpu_in_idle+0x20/0x20
[   23.137606]  [<ffffffff839e8adc>] rest_init+0x183/0x189
[   23.142952]  [<ffffffff84c97943>] start_kernel+0x67e/0x6b2
[   23.148553]  [<ffffffff84c972c5>] ? thread_stack_cache_init+0xb/0xb
[   23.154947]  [<ffffffff81ee37a2>] ? x86_family+0x32/0x40
[   23.160375]  [<ffffffff84c96120>] ? early_idt_handler_array+0x120/0x120
[   23.167120]  [<ffffffff84c9629a>] x86_64_start_reservations+0x29/0x2b
[   23.173677]  [<ffffffff84c963db>] x86_64_start_kernel+0x13f/0x162
[   23.180298] Dumping ftrace buffer:
[   23.183840]    (ftrace buffer empty)
[   23.187526] Kernel Offset: disabled
[   23.191137] Rebooting in 86400 seconds..