[   20.036143] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available)
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[   20.687958] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available)
[   20.883260] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   21.843602] random: sshd: uninitialized urandom read (32 bytes read, 113 bits of entropy available)
[   22.010841] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available)
Warning: Permanently added '10.128.0.7' (ECDSA) to the list of known hosts.
[   27.448680] random: sshd: uninitialized urandom read (32 bytes read, 128 bits of entropy available)
executing program
[   27.543719] sg_write: data in/out 167162/110 bytes for SCSI command 0xff-- guessing data in;
[   27.543719]    program syzkaller603364 not setting count and/or reply_len properly
[   27.561151] kasan: CONFIG_KASAN_INLINE enabled
[   27.565530] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   27.578393] Dumping ftrace buffer:
[   27.581902]    (ftrace buffer empty)
[   27.585580] Modules linked in:
[   27.588860] CPU: 1 PID: 3773 Comm: syzkaller603364 Not tainted 4.4.119-g855ea74 #27
[   27.596616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.605937] task: ffff8800a9d8e000 task.stack: ffff8801c69e8000
[   27.611963] RIP: 0010:[<ffffffff825baad7>]  [<ffffffff825baad7>] sg_read+0xd17/0x1490
[   27.620016] RSP: 0018:ffff8801c69efb00  EFLAGS: 00010246
[   27.625430] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825baa9e
[   27.632666] RDX: 0000000000000000 RSI: 0000000020e94024 RDI: ffff8800a9f74370
[   27.639905] RBP: ffff8801c69efc08 R08: 0000000000000000 R09: 0000000000000001
[   27.647143] R10: 0000000000000000 R11: 1ffff10038d3df26 R12: 000000000000001a
[   27.654380] R13: 0000000000000000 R14: ffff8801d2bfa840 R15: ffff8800a9f74340
[   27.661619] FS:  00000000017b7880(0063) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   27.669810] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.675658] CR2: 0000000020e94000 CR3: 00000001d95c0000 CR4: 0000000000160670
[   27.682898] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.690136] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.697371] Stack:
[   27.699485]  0000000000000010 ffffea00071a7bc0 0000000000000000 ffff8800a9f74358
[   27.707443]  ffff8801c69efb70 ffff8800a9f74368 000000000000003e ffff8801c69efd80
[   27.715406]  ffff8800b77f2780 0000000000001000 1ffff10038d3df6c 0000000020e94024
[   27.723369] Call Trace:
[   27.725927]  [<ffffffff825b9dc0>] ? sg_proc_seq_show_debug+0xda0/0xda0
[   27.732560]  [<ffffffff815ea120>] ? fsnotify+0xee0/0xee0
[   27.737981]  [<ffffffff81b4d189>] ? avc_policy_seqno+0x9/0x20
[   27.743831]  [<ffffffff8151d7c1>] do_loop_readv_writev+0x141/0x1e0
[   27.750124]  [<ffffffff81b44089>] ? security_file_permission+0x89/0x1e0
[   27.756845]  [<ffffffff825b9dc0>] ? sg_proc_seq_show_debug+0xda0/0xda0
[   27.763475]  [<ffffffff825b9dc0>] ? sg_proc_seq_show_debug+0xda0/0xda0
[   27.770108]  [<ffffffff8151fb1d>] do_readv_writev+0x5dd/0x6e0
[   27.775962]  [<ffffffff8151f540>] ? vfs_write+0x530/0x530
[   27.781471]  [<ffffffff83772b0c>] ? _raw_spin_unlock+0x2c/0x50
[   27.787412]  [<ffffffff8150dfcd>] ? do_huge_pmd_anonymous_page+0x3dd/0xa10
[   27.794393]  [<ffffffff814a0802>] ? handle_mm_fault+0x3f2/0x3190
[   27.800505]  [<ffffffff8154fdee>] ? putname+0xee/0x130
[   27.805752]  [<ffffffff81b4d189>] ? avc_policy_seqno+0x9/0x20
[   27.811604]  [<ffffffff81b5e858>] ? selinux_file_permission+0x348/0x460
[   27.818323]  [<ffffffff8151fc98>] vfs_readv+0x78/0xb0
[   27.823479]  [<ffffffff81521fc9>] SyS_readv+0xd9/0x240
[   27.828721]  [<ffffffff81521ef0>] ? rw_copy_check_uvector+0x2b0/0x2b0
[   27.835266]  [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
[   27.841814]  [<ffffffff8377365f>] entry_SYSCALL_64_fastpath+0x1c/0x98
[   27.848359] Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 97 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5f 28 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 6b 06 00 00 48 8b 1b 48 85 db 0f 84 3b 03 00 
[   27.874880] RIP  [<ffffffff825baad7>] sg_read+0xd17/0x1490
[   27.880593]  RSP <ffff8801c69efb00>
[   27.884254] ---[ end trace ade83737f9da9b93 ]---
[   27.889716] Kernel panic - not syncing: Fatal exception
[   27.895465] Dumping ftrace buffer:
[   27.898980]    (ftrace buffer empty)
[   27.902659] Kernel Offset: disabled
[   27.906252] Rebooting in 86400 seconds..