[   16.132072] 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: [   20.223508] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available)
[   20.494987] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available)
[   21.155547] random: sshd: uninitialized urandom read (32 bytes read, 68 bits of entropy available)
[   23.203894] random: sshd: uninitialized urandom read (32 bytes read, 75 bits of entropy available)
Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts.
[   28.780660] random: sshd: uninitialized urandom read (32 bytes read, 81 bits of entropy available)
executing program
[   28.879348] sg_write: data in/out 486575354/302 bytes for SCSI command 0x67-- guessing data in;
[   28.879348]    program syzkaller088954 not setting count and/or reply_len properly
[   28.897503] kasan: CONFIG_KASAN_INLINE enabled
[   28.901909] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   28.914721] Dumping ftrace buffer:
[   28.918223]    (ftrace buffer empty)
[   28.921899] Modules linked in:
[   28.925173] CPU: 0 PID: 3321 Comm: syzkaller088954 Not tainted 4.4.110-gdac1439 #20
[   28.932935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.942266] task: ffff8801d1fb5f00 task.stack: ffff8801d0950000
[   28.948286] RIP: 0010:[<ffffffff825bc15d>]  [<ffffffff825bc15d>] sg_read+0xd1d/0x1490
[   28.956338] RSP: 0018:ffff8801d0957b00  EFLAGS: 00010246
[   28.961764] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825bc124
[   28.969000] RDX: 0000000000000000 RSI: 0000000020701fe6 RDI: ffff8801d09a4370
[   28.976234] RBP: ffff8801d0957c08 R08: 0000000000000000 R09: 0000000000000001
[   28.983471] R10: 0000000000000000 R11: 1ffff1003a12af26 R12: 000000000000001a
[   28.990707] R13: 0000000000000000 R14: ffff8801d1412480 R15: ffff8801d09a4340
[   28.997943] FS:  00000000021bc880(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   29.006133] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.011987] CR2: 0000000020701fc2 CR3: 00000001d0870000 CR4: 0000000000160670
[   29.019233] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.026469] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.033705] Stack:
[   29.035818]  0000000000000000 000077ff80000000 ffff8801d0957b60 ffff8801d09a4358
[   29.043759]  0000000000000008 ffff8801d09a4368 000000000000003e 0000000000000001
[   29.051702]  ffff8800b7ec8f00 0000000000001000 1ffff1003a12af6c 0000000020701fe6
[   29.059644] Call Trace:
[   29.062199]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   29.068837]  [<ffffffff815e9970>] ? fsnotify+0xee0/0xee0
[   29.074254]  [<ffffffff81b4dda9>] ? avc_policy_seqno+0x9/0x20
[   29.080107]  [<ffffffff8151ca11>] do_loop_readv_writev+0x141/0x1e0
[   29.086396]  [<ffffffff81b44c99>] ? security_file_permission+0x89/0x1e0
[   29.093115]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   29.099754]  [<ffffffff825bb440>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   29.106389]  [<ffffffff8151ed6d>] do_readv_writev+0x5dd/0x6e0
[   29.112244]  [<ffffffff8151e790>] ? vfs_write+0x530/0x530
[   29.117747]  [<ffffffff83774aac>] ? _raw_spin_unlock+0x2c/0x50
[   29.123689]  [<ffffffff8150d32d>] ? do_huge_pmd_anonymous_page+0x3dd/0xa10
[   29.130665]  [<ffffffff8149f6a2>] ? handle_mm_fault+0x3f2/0x3190
[   29.136775]  [<ffffffff81235b2b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   29.143581]  [<ffffffff81b4dda9>] ? avc_policy_seqno+0x9/0x20
[   29.149428]  [<ffffffff81b5f498>] ? selinux_file_permission+0x348/0x460
[   29.156280]  [<ffffffff8151eee8>] vfs_readv+0x78/0xb0
[   29.161435]  [<ffffffff81521239>] SyS_readv+0xd9/0x240
[   29.166675]  [<ffffffff81521160>] ? rw_copy_check_uvector+0x2d0/0x2d0
[   29.173222]  [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
[   29.179767]  [<ffffffff837755d9>] entry_SYSCALL_64_fastpath+0x16/0x92
[   29.186306] 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 
[   29.212653] RIP  [<ffffffff825bc15d>] sg_read+0xd1d/0x1490
[   29.218356]  RSP <ffff8801d0957b00>
[   29.223011] ---[ end trace cc0a5a57cbb3e520 ]---
[   29.227759] Kernel panic - not syncing: Fatal exception
[   29.233523] Dumping ftrace buffer:
[   29.237038]    (ftrace buffer empty)
[   29.240728] Kernel Offset: disabled
[   29.244334] Rebooting in 86400 seconds..