[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   31.183277] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   34.444443] random: sshd: uninitialized urandom read (32 bytes read)
[   35.017333] random: sshd: uninitialized urandom read (32 bytes read)
[   36.188813] random: sshd: uninitialized urandom read (32 bytes read)
[   42.978654] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts.
[   48.516296] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   48.638997] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[   48.647018] PGD 80000001c8d08067 P4D 80000001c8d08067 PUD 1c9e55067 PMD 0 
[   48.654046] Oops: 0000 [#1] SMP PTI
[   48.657656] Dumping ftrace buffer:
[   48.661178]    (ftrace buffer empty)
[   48.664874] Modules linked in:
[   48.668075] CPU: 1 PID: 4511 Comm: syz-executor767 Not tainted 4.17.0-rc3+ #88
[   48.675419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.684778] RIP: 0010:smc_getname+0x188/0x290
[   48.689259] RSP: 0018:ffff88019748fd30 EFLAGS: 00010246
[   48.694616] RAX: ffff8801bf7982d0 RBX: 0000000000000000 RCX: ffff880000000000
[   48.701873] RDX: ffff8801aa2142d0 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000
[   48.709140] RBP: ffff88019748fd80 R08: 0000000001080020 R09: 0000000000000002
[   48.716402] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88019b706098
[   48.723661] R13: 0000000000000028 R14: 0000000000000000 R15: 0000000000000000
[   48.730924] FS:  00007f5baac4f700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   48.739145] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.745028] CR2: 0000000000000028 CR3: 0000000199f1c000 CR4: 00000000001406e0
[   48.752294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.759552] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.766806] Call Trace:
[   48.769394]  ? smc_accept+0x860/0x860
[   48.773189]  __sys_getsockname+0x2bb/0x4b0
[   48.777470]  __x64_sys_getsockname+0xda/0x120
[   48.781967]  do_syscall_64+0x154/0x220
[   48.785851]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.791029] RIP: 0033:0x4454e9
[   48.794204] RSP: 002b:00007f5baac4edb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000033
[   48.801904] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 00000000004454e9
[   48.809160] RDX: 0000000020000080 RSI: 0000000020000000 RDI: 0000000000000003
[   48.816418] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
[   48.823679] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   48.830936] R13: 00007fffd10c64bf R14: 00007f5baac4f9c0 R15: 0000000000000001
[   48.838196] Code: 85 f6 0f 85 c4 00 00 00 49 8b 5d 00 4c 89 ef e8 6f e6 0f f8 4c 8b 38 44 8b 32 48 89 5d d0 4c 8d 6b 28 4d 85 ff 0f 85 ae 00 00 00 <49> 8b 5d 00 4c 89 ef e8 4c e6 0f f8 48 83 c3 38 48 83 38 00 0f 
[   48.857547] RIP: smc_getname+0x188/0x290 RSP: ffff88019748fd30
[   48.863501] CR2: 0000000000000028
[   48.867123] ---[ end trace 3072a436a2f7eca7 ]---
[   48.871908] Kernel panic - not syncing: Fatal exception
[   48.877667] Dumping ftrace buffer:
[   48.881198]    (ftrace buffer empty)
[   48.884895] Kernel Offset: disabled
[   48.888513] Rebooting in 86400 seconds..