[....] Starting OpenBSD Secure Shell server: sshd[   19.280716] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available)
[?25l[?1c7[ ok 8[?25h[?0c.
[   20.001716] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available)
[   20.197779] random: sshd: uninitialized urandom read (32 bytes read, 34 bits of entropy available)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   21.078766] random: sshd: uninitialized urandom read (32 bytes read, 115 bits of entropy available)
[   25.302110] random: sshd: uninitialized urandom read (32 bytes read, 123 bits of entropy available)
[   25.418982] random: nonblocking pool is initialized
Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts.
executing program
executing program
[   30.793945] IPVS: Creating netns size=2552 id=1
[   31.570449] pktgen: kernel_thread() failed for cpu 0
[   31.575613] pktgen: Cannot create thread for cpu 0 (-4)
[   31.581295] pktgen: kernel_thread() failed for cpu 1
[   31.586425] pktgen: Cannot create thread for cpu 1 (-4)
[   31.591773] pktgen: Initialization failed for all threads
[   31.636859] kasan: CONFIG_KASAN_INLINE enabled
[   31.641278] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   31.654129] Dumping ftrace buffer:
[   31.657636]    (ftrace buffer empty)
[   31.661315] Modules linked in:
[   31.664590] CPU: 0 PID: 3764 Comm: syzkaller735187 Not tainted 4.4.115-g55a366596 #15
[   31.672522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.681844] task: ffff8800bb874800 task.stack: ffff8801d8e30000
[   31.687865] RIP: 0010:[<ffffffff82f9d210>]  [<ffffffff82f9d210>] nfqnl_nf_hook_drop+0x190/0x3a0
[   31.696787] RSP: 0018:ffff8801d8e37b30  EFLAGS: 00010202
[   31.702199] RAX: 0000000000000007 RBX: 0000000000000003 RCX: ffffffff82f9d209
[   31.709439] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84418180
[   31.716676] RBP: ffff8801d8e37b60 R08: 0000000000000000 R09: 0000000000000000
[   31.723914] R10: ffffffff83844400 R11: 1ffff1003b1c6f32 R12: dffffc0000000000
[   31.731152] R13: ffff8801d9bc7ba8 R14: 0000000000000038 R15: 00000000000000b8
[   31.738396] FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f77bcb40
[   31.746588] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   31.752435] CR2: 00000000080653c0 CR3: 00000001d9872000 CR4: 0000000000160670
[   31.759675] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.766915] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.774156] Stack:
[   31.776278]  ffffffff82f9d180 ffffffff83cc6720 ffff8800b7779e00 ffff8801d9bc7ba8
[   31.784232]  ffff8801d9bc7ba8 ffff8801d9bc7ba0 ffff8801d8e37b90 ffffffff82f950ce
[   31.792199]  ffffffff82f95010 ffffffff843e37e0 ffff8800b777a8b8 dffffc0000000000
[   31.800158] Call Trace:
[   31.802717]  [<ffffffff82f9d180>] ? nfqnl_nf_hook_drop+0x100/0x3a0
[   31.809000]  [<ffffffff82f950ce>] nf_queue_nf_hook_drop+0xbe/0x1d0
[   31.815283]  [<ffffffff82f95010>] ? nf_queue_entry_release_refs+0x150/0x150
[   31.822351]  [<ffffffff82f90e2b>] nf_unregister_net_hook+0x2ab/0x350
[   31.828811]  [<ffffffff82f90f70>] netfilter_net_exit+0x40/0xb0
[   31.834746]  [<ffffffff82f90f30>] ? nf_unregister_net_hooks+0x60/0x60
[   31.841294]  [<ffffffff82e2ab3e>] ops_exit_list.isra.4+0xae/0x150
[   31.847492]  [<ffffffff82e2c821>] setup_net+0x221/0x3e0
[   31.852821]  [<ffffffff82e2c600>] ? ops_init+0x3a0/0x3a0
[   31.858236]  [<ffffffff814fdae2>] ? kasan_slab_alloc+0x12/0x20
[   31.864173]  [<ffffffff814f9213>] ? kmem_cache_alloc+0x113/0x290
[   31.870286]  [<ffffffff82e2de92>] copy_net_ns+0xd2/0x190
[   31.875703]  [<ffffffff81192e06>] create_new_namespaces+0x2f6/0x610
[   31.882076]  [<ffffffff811936be>] unshare_nsproxy_namespaces+0xae/0x1e0
[   31.888796]  [<ffffffff8112ca0a>] SyS_unshare+0x3da/0x700
[   31.894300]  [<ffffffff8112c630>] ? SyS_clone+0x50/0x50
[   31.899628]  [<ffffffff837750e9>] ? retint_kernel+0x2d/0x2d
[   31.905305]  [<ffffffff83773a4e>] ? _raw_spin_unlock_irq+0x2e/0x50
[   31.911589]  [<ffffffff8112c630>] ? SyS_clone+0x50/0x50
[   31.916921]  [<ffffffff81006d74>] do_fast_syscall_32+0x314/0x890
[   31.923034]  [<ffffffff83775e6a>] sysenter_flags_fixed+0xd/0x17
[   31.929055] Code: df 83 01 00 0f 84 d8 00 00 00 4d 8d 77 38 49 bc 00 00 00 00 00 fc ff df 49 81 c7 b8 00 00 00 e8 67 3b 3c fe 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 0f 85 f4 01 00 00 49 8b 1e e8 7d 8c 2e fe 48 85 
[   31.955546] RIP  [<ffffffff82f9d210>] nfqnl_nf_hook_drop+0x190/0x3a0
[   31.962119]  RSP <ffff8801d8e37b30>
[   31.965793] ---[ end trace 2588ba9463913fd3 ]---
[   31.970546] Kernel panic - not syncing: Fatal exception
[   31.976282] Dumping ftrace buffer:
[   31.979795]    (ftrace buffer empty)
[   31.983472] Kernel Offset: disabled
[   31.987065] Rebooting in 86400 seconds..