[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   20.416813] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available)
[?25l[?1c7[ ok 8[?25h[?0c.
[   21.108438] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available)
[   21.340079] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   22.310882] random: sshd: uninitialized urandom read (32 bytes read, 115 bits of entropy available)
[   22.470534] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available)
Warning: Permanently added '10.128.10.7' (ECDSA) to the list of known hosts.
[   27.843014] random: sshd: uninitialized urandom read (32 bytes read, 122 bits of entropy available)
2018/03/13 13:28:47 parsed 1 programs
2018/03/13 13:28:47 executed programs: 0
[   28.184578] IPVS: Creating netns size=2552 id=1
[   29.260957] kasan: CONFIG_KASAN_INLINE enabled
[   29.265414] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   29.278242] Dumping ftrace buffer:
[   29.281753]    (ftrace buffer empty)
[   29.285492] Modules linked in:
[   29.289509] CPU: 1 PID: 4050 Comm: syz-executor0 Not tainted 4.4.120-gd63fdf6 #29
[   29.297099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.306422] task: ffff8800ba7c0000 task.stack: ffff8800ba040000
[   29.312447] RIP: 0010:[<ffffffff831aa241>]  [<ffffffff831aa241>] udp_queue_rcv_skb+0x191/0x1560
[   29.321370] RSP: 0018:ffff8800ba0478b0  EFLAGS: 00010206
[   29.326787] RAX: dffffc0000000000 RBX: ffff8800b42e0000 RCX: ffffffff831aa228
[   29.334044] RDX: 000000000000000c RSI: ffff8801ce3cf640 RDI: 0000000000000060
[   29.341282] RBP: ffff8800ba0478f0 R08: 0000000000000001 R09: 0000000000000001
[   29.348520] R10: 0000000000000000 R11: 1ffff10017408ee8 R12: ffff8801ce3cf640
[   29.355771] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801ce3cf698
[   29.363012] FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000085bc900
[   29.371209] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   29.377061] CR2: 000000002082dff0 CR3: 00000000afc56000 CR4: 0000000000160670
[   29.384308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.391545] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.398790] Stack:
[   29.400908]  ffff8800b42e0088 ffff880000000001 ffff8800b42e0088 dffffc0000000000
[   29.408867]  ffff8800b42e0000 0000000000000000 ffffed001685c086 ffff8801ce3cf640
[   29.416833]  ffff8800ba047960 ffffffff82df8cb6 ffff8800b42e0188 ffff8800b42e0190
[   29.424793] Call Trace:
[   29.427349]  [<ffffffff82df8cb6>] release_sock+0x176/0x510
[   29.432949]  [<ffffffff831a3854>] udp_sendmsg+0x15c4/0x1c30
[   29.438630]  [<ffffffff81b4c7d0>] ? avc_has_perm_noaudit+0x460/0x460
[   29.445093]  [<ffffffff831a0090>] ? udp_push_pending_frames+0xe0/0xe0
[   29.451639]  [<ffffffff831a2290>] ? udp_seq_next+0x80/0x80
[   29.457232]  [<ffffffff81b68701>] ? sock_has_perm+0x1c1/0x400
[   29.463085]  [<ffffffff81b687df>] ? sock_has_perm+0x29f/0x400
[   29.468987]  [<ffffffff81b685df>] ? sock_has_perm+0x9f/0x400
[   29.474753]  [<ffffffff831d7c91>] ? inet_sendmsg+0x201/0x4c0
[   29.480518]  [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0
[   29.486107]  [<ffffffff831d7b03>] ? inet_sendmsg+0x73/0x4c0
[   29.491790]  [<ffffffff831d7a90>] ? inet_recvmsg+0x4c0/0x4c0
[   29.497562]  [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110
[   29.503065]  [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340
[   29.508570]  [<ffffffff82dec6f0>] ? SYSC_connect+0x310/0x310
[   29.514345]  [<ffffffff8150e179>] ? do_huge_pmd_anonymous_page+0x549/0xa10
[   29.521329]  [<ffffffff83772e2c>] ? _raw_spin_unlock+0x2c/0x50
[   29.527271]  [<ffffffff812e2899>] ? compat_SyS_futex+0x1f9/0x2a0
[   29.533385]  [<ffffffff812e26a0>] ? compat_SyS_get_robust_list+0x300/0x300
[   29.540371]  [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50
[   29.545616]  [<ffffffff82deee70>] ? SyS_getpeername+0x30/0x30
[   29.551468]  [<ffffffff81006d91>] do_fast_syscall_32+0x321/0x8a0
[   29.557584]  [<ffffffff837752ea>] sysenter_flags_fixed+0xd/0x17
[   29.563607] Code: 74 24 58 41 f6 c6 01 0f 85 7f 07 00 00 e8 28 6b 1b fe 49 83 e6 fe 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 60 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 01 0f 8e 9f 0b 00 00 41 f6 46 60 04 
[   29.590149] RIP  [<ffffffff831aa241>] udp_queue_rcv_skb+0x191/0x1560
[   29.596726]  RSP <ffff8800ba0478b0>
[   29.600363] ---[ end trace 2d6a1663a3a29cd9 ]---
[   29.605098] Kernel panic - not syncing: Fatal exception in interrupt
[   29.612054] Dumping ftrace buffer:
[   29.615563]    (ftrace buffer empty)
[   29.619242] Kernel Offset: disabled
[   29.622836] Rebooting in 86400 seconds..