[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[    5.991460] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   11.582580] random: sshd: uninitialized urandom read (32 bytes read)
[   11.779077] random: sshd: uninitialized urandom read (32 bytes read)
[   12.042054] random: sshd: uninitialized urandom read (32 bytes read)
[   23.380864] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.57' (ECDSA) to the list of known hosts.
[   28.786713] random: sshd: uninitialized urandom read (32 bytes read)
net.ipv6.conf.syz_tun.accept_dad = 0
net.ipv6.conf.syz_tun.router_solicitations = 0
executing program
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[   28.848887] IPVS: ftp: loaded support on port[0] = 21
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[   28.915847] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   28.923817] PGD 800000020009c067 P4D 800000020009c067 PUD 20e3f7067 PMD 0 
[   28.930800] Oops: 0000 [#1] SMP PTI
[   28.934392] CPU: 1 PID: 4151 Comm: kworker/1:25 Not tainted 4.18.0-rc8+ #32
[   28.941471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.950799] Workqueue: events smc_tcp_listen_work
[   28.955611] RIP: 0010:kernel_accept+0x1f/0x140
[   28.960160] Code: 5b 41 5e 5d c3 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 41 89 d7 49 89 f6 48 89 fb e8 65 2d ec fe 48 8b 43 20 <0f> b7 78 10 8b 80 f8 01 00 00 0f b6 d4 c1 e8 10 89 c6 4c 89 f1 e8 
[   28.979148] RSP: 0018:ffff8802087b7de0 EFLAGS: 00010293
[   28.984476] RAX: 0000000000000000 RBX: ffff880211c68b00 RCX: ffff88020252a940
[   28.991718] RDX: 0000000000000000 RSI: ffff8802087b7e18 RDI: ffff880211c68b00
[   28.998956] RBP: ffff8802087b7e08 R08: 0000000000000000 R09: ffff8802040b8a70
[   29.006195] R10: ffff8802040b8a00 R11: ffffffff828df9b0 R12: ffff8802087d8e88
[   29.013432] R13: ffff88021fd24800 R14: ffff8802087b7e18 R15: 0000000000000000
[   29.020670] FS:  0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   29.028865] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.034712] CR2: 0000000000000010 CR3: 0000000202696000 CR4: 00000000001406e0
[   29.042020] Call Trace:
[   29.044609]  smc_tcp_listen_work+0x85/0x370
[   29.048899]  process_one_work+0x28e/0x580
[   29.053014]  worker_thread+0x317/0x690
[   29.056870]  kthread+0x127/0x140
[   29.060199]  ? process_one_work+0x580/0x580
[   29.064592]  ? kthread_blkcg+0x50/0x50
[   29.068460]  ret_from_fork+0x35/0x40
[   29.072143] Modules linked in:
[   29.075302] Dumping ftrace buffer:
[   29.078809]    (ftrace buffer empty)
[   29.082490] CR2: 0000000000000010
[   29.085916] ---[ end trace f5147703759a7dd2 ]---
[   29.090643] RIP: 0010:kernel_accept+0x1f/0x140
[   29.095193] Code: 5b 41 5e 5d c3 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 41 89 d7 49 89 f6 48 89 fb e8 65 2d ec fe 48 8b 43 20 <0f> b7 78 10 8b 80 f8 01 00 00 0f b6 d4 c1 e8 10 89 c6 4c 89 f1 e8 
[   29.114243] RSP: 0018:ffff8802087b7de0 EFLAGS: 00010293
[   29.119589] RAX: 0000000000000000 RBX: ffff880211c68b00 RCX: ffff88020252a940
[   29.126831] RDX: 0000000000000000 RSI: ffff8802087b7e18 RDI: ffff880211c68b00
[   29.134083] RBP: ffff8802087b7e08 R08: 0000000000000000 R09: ffff8802040b8a70
[   29.141322] R10: ffff8802040b8a00 R11: ffffffff828df9b0 R12: ffff8802087d8e88
[   29.148567] R13: ffff88021fd24800 R14: ffff8802087b7e18 R15: 0000000000000000
[   29.155809] FS:  0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   29.164037] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.170013] CR2: 0000000000000010 CR3: 0000000202696000 CR4: 00000000001406e0
[   29.177254] Kernel panic - not syncing: Fatal exception
[   29.182985] Dumping ftrace buffer:
[   29.186497]    (ftrace buffer empty)
[   29.190176] Kernel Offset: disabled
[   29.193770] Rebooting in 86400 seconds..