[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   16.017766] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   21.287163] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available)
[   21.474073] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available)
[   22.389795] random: sshd: uninitialized urandom read (32 bytes read, 111 bits of entropy available)
[   39.397233] random: sshd: uninitialized urandom read (32 bytes read, 120 bits of entropy available)
Warning: Permanently added '10.128.15.231' (ECDSA) to the list of known hosts.
[   44.825480] random: nonblocking pool is initialized
executing program
[   44.962607] IPVS: Creating netns size=2552 id=1
executing program
[   46.153144] pktgen: kernel_thread() failed for cpu 0
[   46.161646] pktgen: Cannot create thread for cpu 0 (-4)
[   46.170044] pktgen: kernel_thread() failed for cpu 1
[   46.178210] pktgen: Cannot create thread for cpu 1 (-4)
[   46.186845] pktgen: Initialization failed for all threads
[   46.308320] kasan: CONFIG_KASAN_INLINE enabled
[   46.315219] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   46.336137] Dumping ftrace buffer:
[   46.341841]    (ftrace buffer empty)
[   46.348008] Modules linked in:
[   46.352852] CPU: 1 PID: 3332 Comm: syzkaller603004 Not tainted 4.4.111-gc2f631b #27
[   46.365063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.380312] task: ffff8801d158df00 task.stack: ffff8800b7da0000
[   46.390223] RIP: 0010:[<ffffffff82f9f430>]  [<ffffffff82f9f430>] nfqnl_nf_hook_drop+0x190/0x3a0
[   46.404182] RSP: 0018:ffff8800b7da7ba8  EFLAGS: 00010202
[   46.412876] RAX: 0000000000000007 RBX: 0000000000000003 RCX: ffffffff82f9f429
[   46.424005] RDX: 0000000000000000 RSI: ffffffff839fd820 RDI: ffffffff847ea088
[   46.435317] RBP: ffff8800b7da7bd8 R08: 0000000000000001 R09: 0000000000000000
[   46.447162] R10: 0000000000000000 R11: 1ffff10016fb4f40 R12: dffffc0000000000
[   46.458722] R13: ffff8801d082ad88 R14: 0000000000000038 R15: 00000000000000b8
[   46.469679] FS:  00007fecc2457700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   46.481617] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.490253] CR2: 00007f601d0ae000 CR3: 00000000b3ed4000 CR4: 0000000000160670
[   46.501892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.512327] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.523210] Stack:
[   46.526780]  ffffffff82f9f3a0 ffffffff83cc5820 ffff8800b7cf0000 ffff8801d082ad88
[   46.538696]  ffff8801d082ad88 ffff8801d082ad80 ffff8800b7da7c08 ffffffff82f972ee
[   46.550239]  ffffffff82f97230 ffffffff843e2760 ffff8800b7cf0ab8 dffffc0000000000
[   46.561906] Call Trace:
[   46.565802]  [<ffffffff82f9f3a0>] ? nfqnl_nf_hook_drop+0x100/0x3a0
[   46.574924]  [<ffffffff82f972ee>] nf_queue_nf_hook_drop+0xbe/0x1d0
[   46.584147]  [<ffffffff82f97230>] ? nf_queue_entry_release_refs+0x150/0x150
[   46.592791]  [<ffffffff82f9304b>] nf_unregister_net_hook+0x2ab/0x350
[   46.600819]  [<ffffffff82f93190>] netfilter_net_exit+0x40/0xb0
[   46.608681]  [<ffffffff82f93150>] ? nf_unregister_net_hooks+0x60/0x60
[   46.616537]  [<ffffffff82e2ccee>] ops_exit_list.isra.4+0xae/0x150
[   46.624049]  [<ffffffff82e2e9d1>] setup_net+0x221/0x3e0
[   46.629404]  [<ffffffff82e2e7b0>] ? ops_init+0x3a0/0x3a0
[   46.635350]  [<ffffffff81285103>] ? rcu_read_lock_sched_held+0x103/0x120
[   46.642770]  [<ffffffff82e30042>] copy_net_ns+0xd2/0x190
[   46.648898]  [<ffffffff81192f66>] create_new_namespaces+0x2f6/0x610
[   46.655275]  [<ffffffff8119381e>] unshare_nsproxy_namespaces+0xae/0x1e0
[   46.663825]  [<ffffffff8112c8ea>] SyS_unshare+0x3da/0x700
[   46.670373]  [<ffffffff8112c510>] ? SyS_clone+0x50/0x50
[   46.675887]  [<ffffffff810dc6e0>] ? __do_page_fault+0x380/0xa00
[   46.684094]  [<ffffffff837764d8>] ? retint_user+0x18/0x3c
[   46.690672]  [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
[   46.697220]  [<ffffffff83775919>] entry_SYSCALL_64_fastpath+0x16/0x92
[   46.704554] Code: a7 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 57 0a 3c fe 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 0f 85 f4 01 00 00 49 8b 1e e8 4d 5a 2e fe 48 85 
[   46.732411] RIP  [<ffffffff82f9f430>] nfqnl_nf_hook_drop+0x190/0x3a0
[   46.739265]  RSP <ffff8800b7da7ba8>
[   46.743308] ---[ end trace 73cd027e45bdc6ce ]---
[   46.749205] Kernel panic - not syncing: Fatal exception
[   46.755020] Dumping ftrace buffer:
[   46.758528]    (ftrace buffer empty)
[   46.762906] Kernel Offset: disabled
[   46.768955] Rebooting in 86400 seconds..