[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   16.133040] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   20.179265] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available)
[   20.449158] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available)
[   21.216234] random: sshd: uninitialized urandom read (32 bytes read, 95 bits of entropy available)
[   21.392556] random: sshd: uninitialized urandom read (32 bytes read, 101 bits of entropy available)
Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts.
[   26.778294] random: sshd: uninitialized urandom read (32 bytes read, 107 bits of entropy available)
executing program
[   26.878694] sg_write: data in/out 36090/116 bytes for SCSI command 0x67-- guessing data in;
[   26.878694]    program syzkaller756783 not setting count and/or reply_len properly
[   26.895822] kasan: CONFIG_KASAN_INLINE enabled
[   26.900200] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   26.913399] Dumping ftrace buffer:
[   26.916910]    (ftrace buffer empty)
[   26.920585] Modules linked in:
[   26.923854] CPU: 1 PID: 3314 Comm: syzkaller756783 Not tainted 4.4.110-gdac1439 #20
[   26.931608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.940929] task: ffff8801d1cb8000 task.stack: ffff8800b42a8000
[   26.946951] RIP: 0010:[<ffffffff825bc15d>]  [<ffffffff825bc15d>] sg_read+0xd1d/0x1490
[   26.955004] RSP: 0018:ffff8800b42afb00  EFLAGS: 00010246
[   26.960415] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825bc124
[   26.967649] RDX: 0000000000000000 RSI: 0000000020f93fef RDI: ffff8801d1b92270
[   26.974884] RBP: ffff8800b42afc08 R08: 0000000000000000 R09: 0000000000000001
[   26.982120] R10: 0000000000000000 R11: 1ffff10016855f26 R12: 000000000000001a
[   26.989354] R13: 0000000000000000 R14: ffff8800b4465b40 R15: ffff8801d1b92240
[   26.996588] FS:  0000000000ea1880(0063) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   27.004776] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.010621] CR2: 0000000020f93fcb CR3: 00000000bb15e000 CR4: 0000000000160670
[   27.017860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.025104] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.032336] Stack:
[   27.034447]  0000000000000000 000077ff80000000 ffff8800b42afb60 ffff8801d1b92258
[   27.042392]  0000000000000008 ffff8801d1b92268 000000000000003e 0000000000000001
[   27.050332]  ffff8800b7f37680 0000000000001000 1ffff10016855f6c 0000000020f93fef
[   27.058271] Call Trace:
[   27.060830]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.067460]  [<ffffffff815e9970>] ? fsnotify+0xee0/0xee0
[   27.072876]  [<ffffffff81b4dda9>] ? avc_policy_seqno+0x9/0x20
[   27.078729]  [<ffffffff8151ca11>] do_loop_readv_writev+0x141/0x1e0
[   27.085011]  [<ffffffff81b44c99>] ? security_file_permission+0x89/0x1e0
[   27.091731]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.098359]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.104989]  [<ffffffff8151ed6d>] do_readv_writev+0x5dd/0x6e0
[   27.110848]  [<ffffffff8151e790>] ? vfs_write+0x530/0x530
[   27.116350]  [<ffffffff83774aac>] ? _raw_spin_unlock+0x2c/0x50
[   27.122291]  [<ffffffff8150d32d>] ? do_huge_pmd_anonymous_page+0x3dd/0xa10
[   27.129269]  [<ffffffff8149f6a2>] ? handle_mm_fault+0x3f2/0x3190
[   27.135380]  [<ffffffff81235b2b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   27.142183]  [<ffffffff81b4dda9>] ? avc_policy_seqno+0x9/0x20
[   27.148030]  [<ffffffff81b5f498>] ? selinux_file_permission+0x348/0x460
[   27.154747]  [<ffffffff8151eee8>] vfs_readv+0x78/0xb0
[   27.159900]  [<ffffffff81521239>] SyS_readv+0xd9/0x240
[   27.165142]  [<ffffffff81521160>] ? rw_copy_check_uvector+0x2d0/0x2d0
[   27.171685]  [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
[   27.178228]  [<ffffffff837755d9>] entry_SYSCALL_64_fastpath+0x16/0x92
[   27.184769] 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 
[   27.211009] RIP  [<ffffffff825bc15d>] sg_read+0xd1d/0x1490
[   27.216712]  RSP <ffff8800b42afb00>
[   27.221239] ---[ end trace 8595a0f9a3832d0c ]---
[   27.225970] Kernel panic - not syncing: Fatal exception
[   27.231340] Dumping ftrace buffer:
[   27.234843]    (ftrace buffer empty)
[   27.238519] Kernel Offset: disabled
[   27.242109] Rebooting in 86400 seconds..