[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   33.022677] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.
[   33.238495] random: sshd: uninitialized urandom read (32 bytes read)
[   33.655920] random: sshd: uninitialized urandom read (32 bytes read)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   35.049858] random: sshd: uninitialized urandom read (32 bytes read)
[   35.277853] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts.
[   40.837794] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   40.955340] WARNING: CPU: 0 PID: 4581 at ./include/net/sock.h:644 smc_unhash_sk+0x37b/0x3f0
[   40.963877] Kernel panic - not syncing: panic_on_warn set ...
[   40.963877] 
[   40.971261] CPU: 0 PID: 4581 Comm: syz-executor802 Not tainted 4.18.0-rc4+ #24
[   40.978614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.987964] Call Trace:
[   40.990568]  dump_stack+0x185/0x1e0
[   40.994841]  panic+0x3d0/0x9b0
[   40.998046]  __warn+0x40f/0x580
[   41.001325]  ? smc_unhash_sk+0x37b/0x3f0
[   41.005402]  report_bug+0x72a/0x880
[   41.009086]  ? smc_unhash_sk+0x37b/0x3f0
[   41.013184]  ? smc_unhash_sk+0x37b/0x3f0
[   41.017283]  do_error_trap+0x1fe/0x710
[   41.021202]  ? sock_destroy_inode+0xab/0xd0
[   41.025543]  ? sock_alloc_inode+0x2b0/0x2b0
[   41.029872]  do_invalid_op+0x46/0x50
[   41.033586]  invalid_op+0x14/0x20
[   41.037056] RIP: 0010:smc_unhash_sk+0x37b/0x3f0
[   41.041725] Code: d5 f7 e9 e5 fe ff ff 8b 7d d4 e8 30 a8 d5 f7 e9 f7 fe ff ff 8b 3a e8 24 a8 d5 f7 41 83 fe 01 0f 85 11 ff ff ff e8 a5 f6 79 f7 <0f> 0b 4d 85 e4 0f 84 0f ff ff ff 8b 7d d4 e8 02 a8 d5 f7 4d 85 e4 
[   41.061069] RSP: 0018:ffff8801bbf9f9f8 EFLAGS: 00010293
[   41.066460] RAX: ffffffff89ee346b RBX: ffff8801a0230080 RCX: ffff8801beea8000
[   41.073735] RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0009c0d200
[   41.081017] RBP: ffff8801bbf9fa78 R08: 0000000000480020 R09: 0000000000000002
[   41.088399] R10: 0000000000000000 R11: ffffffff89ee30f0 R12: 0000000000000000
[   41.095669] R13: ffff8801a0230000 R14: 0000000000000001 R15: 00000000f9000098
[   41.102959]  ? smc_hash_sk+0x3a0/0x3a0
[   41.106870]  ? smc_unhash_sk+0x37b/0x3f0
[   41.110934]  ? smc_unhash_sk+0x37b/0x3f0
[   41.114994]  ? smc_hash_sk+0x3a0/0x3a0
[   41.118895]  smc_release+0x81b/0x900
[   41.122629]  ? smc_sock_alloc+0x830/0x830
[   41.126806]  sock_close+0x11e/0x360
[   41.130448]  __fput+0x458/0xa30
[   41.133745]  ? fput+0x300/0x300
[   41.137046]  ____fput+0x37/0x40
[   41.140349]  task_work_run+0x22e/0x2b0
[   41.144240]  do_exit+0x110e/0x3930
[   41.147807]  do_group_exit+0x1a0/0x360
[   41.151716]  __do_sys_exit_group+0x21/0x30
[   41.155965]  __se_sys_exit_group+0x14/0x20
[   41.160224]  __x64_sys_exit_group+0x4c/0x50
[   41.164578]  ? do_group_exit+0x360/0x360
[   41.168659]  do_syscall_64+0x15b/0x230
[   41.172550]  entry_SYSCALL_64_after_hwframe+0x63/0xe7
[   41.177736] RIP: 0033:0x43ec78
[   41.180915] Code: Bad RIP value.
[   41.184291] RSP: 002b:00007fff621dda48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   41.191998] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ec78
[   41.199262] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[   41.206525] RBP: 00000000004be528 R08: 00000000000000e7 R09: ffffffffffffffd0
[   41.213789] R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000001
[   41.221060] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000
[   41.228829] Dumping ftrace buffer:
[   41.232363]    (ftrace buffer empty)
[   41.236063] Kernel Offset: disabled
[   41.239692] Rebooting in 86400 seconds..