[   16.526330] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available)
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   21.406030] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available)
[   21.630340] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available)
[   22.388880] random: sshd: uninitialized urandom read (32 bytes read, 86 bits of entropy available)
[   22.575659] random: sshd: uninitialized urandom read (32 bytes read, 91 bits of entropy available)
Warning: Permanently added '10.128.0.13' (ECDSA) to the list of known hosts.
[   27.972807] random: sshd: uninitialized urandom read (32 bytes read, 98 bits of entropy available)
executing program
[   28.070982] sg_write: data in/out 298234/1 bytes for SCSI command 0xe2-- guessing data in;
[   28.070982]    program syzkaller081758 not setting count and/or reply_len properly
[   28.089208] kasan: CONFIG_KASAN_INLINE enabled
[   28.093597] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   28.106435] Dumping ftrace buffer:
[   28.109944]    (ftrace buffer empty)
[   28.113621] Modules linked in:
[   28.116903] CPU: 1 PID: 3311 Comm: syzkaller081758 Not tainted 4.4.110-gdac1439 #20
[   28.124667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.134005] task: ffff8800b4ef2f80 task.stack: ffff8800b4970000
[   28.140033] RIP: 0010:[<ffffffff825bc15d>]  [<ffffffff825bc15d>] sg_read+0xd1d/0x1490
[   28.148090] RSP: 0018:ffff8800b4977b00  EFLAGS: 00010246
[   28.153503] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825bc124
[   28.160751] RDX: 0000000000000000 RSI: 0000000020aaaf8f RDI: ffff8800b5f72270
[   28.168009] RBP: ffff8800b4977c08 R08: 0000000000000000 R09: 0000000000000001
[   28.175260] R10: 0000000000000000 R11: 1ffff1001692ef26 R12: 0000000000000071
[   28.182508] R13: 0000000000000000 R14: ffff8800b4da5780 R15: ffff8800b5f72240
[   28.189761] FS:  00000000016f4880(0063) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   28.197973] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.203846] CR2: 0000000020aaaf6b CR3: 00000000b48ba000 CR4: 0000000000160670
[   28.211106] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.218370] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.225607] Stack:
[   28.227721]  0000000000000000 000077ff80000000 ffff8800b4977b60 ffff8800b5f72258
[   28.235673]  0000000000000008 ffff8800b5f72268 0000000000000095 0000000000000001
[   28.243634]  ffff8801d509e280 0000000000001000 1ffff1001692ef6c 0000000020aaaf8f
[   28.251592] Call Trace:
[   28.254155]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   28.260788]  [<ffffffff815e9970>] ? fsnotify+0xee0/0xee0
[   28.266212]  [<ffffffff81b4dda9>] ? avc_policy_seqno+0x9/0x20
[   28.272064]  [<ffffffff8151ca11>] do_loop_readv_writev+0x141/0x1e0
[   28.278349]  [<ffffffff81b44c99>] ? security_file_permission+0x89/0x1e0
[   28.285080]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   28.291734]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   28.298376]  [<ffffffff8151ed6d>] do_readv_writev+0x5dd/0x6e0
[   28.304224]  [<ffffffff8151e790>] ? vfs_write+0x530/0x530
[   28.309740]  [<ffffffff83774aac>] ? _raw_spin_unlock+0x2c/0x50
[   28.315705]  [<ffffffff8150d32d>] ? do_huge_pmd_anonymous_page+0x3dd/0xa10
[   28.322712]  [<ffffffff8149f6a2>] ? handle_mm_fault+0x3f2/0x3190
[   28.328847]  [<ffffffff81235b2b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   28.335663]  [<ffffffff81b4dda9>] ? avc_policy_seqno+0x9/0x20
[   28.341519]  [<ffffffff81b5f498>] ? selinux_file_permission+0x348/0x460
[   28.348240]  [<ffffffff8151eee8>] vfs_readv+0x78/0xb0
[   28.353393]  [<ffffffff81521239>] SyS_readv+0xd9/0x240
[   28.358658]  [<ffffffff81521160>] ? rw_copy_check_uvector+0x2d0/0x2d0
[   28.365226]  [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
[   28.371802]  [<ffffffff837755d9>] entry_SYSCALL_64_fastpath+0x16/0x92
[   28.378360] 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 
[   28.404878] RIP  [<ffffffff825bc15d>] sg_read+0xd1d/0x1490
[   28.410613]  RSP <ffff8800b4977b00>
[   28.414316] ---[ end trace b67b5a1b7edc9f9f ]---
[   28.419701] Kernel panic - not syncing: Fatal exception
[   28.425558] Dumping ftrace buffer:
[   28.429069]    (ftrace buffer empty)
[   28.432753] Kernel Offset: disabled
[   28.436360] Rebooting in 86400 seconds..