[....] Starting OpenBSD Secure Shell server: sshd[   18.814769] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.
[   19.053995] random: sshd: uninitialized urandom read (32 bytes read)
[   19.263364] sshd (4482) used greatest stack depth: 16808 bytes left
[   19.284325] random: sshd: uninitialized urandom read (32 bytes read)
[   19.996282] random: sshd: uninitialized urandom read (32 bytes read)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   20.154899] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts.
[   25.639199] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   25.730367] kasan: CONFIG_KASAN_INLINE enabled
[   25.735049] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   25.742440] general protection fault: 0000 [#1] SMP KASAN
[   25.747971] Dumping ftrace buffer:
[   25.751486]    (ftrace buffer empty)
[   25.755172] Modules linked in:
[   25.758347] CPU: 1 PID: 4499 Comm: syz-executor836 Not tainted 4.17.0-rc3+ #51
[   25.765680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.775030] RIP: 0010:smc_setsockopt+0x8b/0x120
[   25.779675] RSP: 0018:ffff8801ac8afc70 EFLAGS: 00010206
[   25.785027] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000009
[   25.792274] RDX: 0000000000000005 RSI: ffffffff873e71a6 RDI: 0000000000000028
[   25.799520] RBP: ffff8801ac8afca0 R08: 0000000020000040 R09: ffffed003b5e46c2
[   25.806765] R10: 0000000000000003 R11: 0000000000000000 R12: ffff8801ac8afcf0
[   25.814018] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000009
[   25.821275] FS:  0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000096d7840
[   25.829479] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   25.835335] CR2: 0000000020000040 CR3: 00000001ad3f3000 CR4: 00000000001406e0
[   25.842589] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.849837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.857082] Call Trace:
[   25.859658]  __compat_sys_setsockopt+0x315/0x7c0
[   25.864391]  ? __compat_sys_getsockopt+0x7f0/0x7f0
[   25.869296]  ? __do_page_fault+0x441/0xe40
[   25.873512]  ? mm_fault_error+0x380/0x380
[   25.877641]  __ia32_compat_sys_setsockopt+0xbd/0x150
[   25.882719]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   25.887715]  do_fast_syscall_32+0x345/0xf9b
[   25.892021]  ? do_int80_syscall_32+0x880/0x880
[   25.896584]  ? do_syscall_64+0x48f/0x800
[   25.900621]  ? syscall_return_slowpath+0x5c0/0x5c0
[   25.905527]  ? syscall_return_slowpath+0x30f/0x5c0
[   25.910438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   25.915951]  ? retint_user+0x18/0x18
[   25.919642]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   25.924473]  entry_SYSENTER_compat+0x70/0x7f
[   25.928860] RIP: 0023:0xf7f60cb9
[   25.932201] RSP: 002b:00000000ffcce18c EFLAGS: 00000286 ORIG_RAX: 000000000000016e
[   25.939891] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000
[   25.947142] RDX: 0000000000000001 RSI: 0000000000000009 RDI: 0000000020000040
[   25.954389] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   25.961635] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000000000
[   25.968881] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   25.976129] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 93 00 00 00 48 8b 9b 50 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 62 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 28 49 
[   25.995265] RIP: smc_setsockopt+0x8b/0x120 RSP: ffff8801ac8afc70
[   26.001497] ---[ end trace c6b4446e7cda5e33 ]---
[   26.006268] Kernel panic - not syncing: Fatal exception
[   26.012058] Dumping ftrace buffer:
[   26.015581]    (ftrace buffer empty)
[   26.019267] Kernel Offset: disabled
[   26.022869] Rebooting in 86400 seconds..