[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   18.006406] 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: [   19.592292] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available)
[   19.878033] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available)
[   20.830962] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available)
[   21.018101] random: sshd: uninitialized urandom read (32 bytes read, 123 bits of entropy available)
[   21.669740] random: nonblocking pool is initialized
Warning: Permanently added '10.128.0.10' (ECDSA) to the list of known hosts.
executing program
[   26.501107] sg_write: data in/out 8454115/514 bytes for SCSI command 0x0-- guessing data in;
[   26.501107]    program syzkaller598802 not setting count and/or reply_len properly
[   26.518623] kasan: CONFIG_KASAN_INLINE enabled
[   26.523811] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   26.536670] Dumping ftrace buffer:
[   26.540181]    (ftrace buffer empty)
[   26.543863] Modules linked in:
[   26.547142] CPU: 0 PID: 3320 Comm: syzkaller598802 Not tainted 4.4.112-g3fc4284 #32
[   26.554906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.564235] task: ffff8801d15c2f80 task.stack: ffff8800b3c10000
[   26.570272] RIP: 0010:[<ffffffff825bc97d>]  [<ffffffff825bc97d>] sg_read+0xd1d/0x1490
[   26.578336] RSP: 0018:ffff8800b3c17b00  EFLAGS: 00010246
[   26.583768] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825bc944
[   26.591011] RDX: 0000000000000000 RSI: 0000000020f93fef RDI: ffff8800b4d0a270
[   26.598254] RBP: ffff8800b3c17c08 R08: 0000000000000000 R09: 0000000000000001
[   26.605502] R10: 0000000000000000 R11: 1ffff10016782f26 R12: 000000000000001a
[   26.612742] R13: 0000000000000000 R14: ffff8801d0453a80 R15: ffff8800b4d0a240
[   26.619988] FS:  000000000200f880(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   26.628196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.634059] CR2: 0000000020f93fcb CR3: 00000000b08d4000 CR4: 0000000000160670
[   26.641306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.648548] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.655787] Stack:
[   26.657907]  0000000000000000 000077ff80000000 ffff8800b3c17b60 ffff8800b4d0a258
[   26.665877]  0000000000000008 ffff8800b4d0a268 000000000000003e 0000000000000001
[   26.673846]  ffff8800b7c96c80 0000000000001000 1ffff10016782f6c 0000000020f93fef
[   26.681845] Call Trace:
[   26.684406]  [<ffffffff825bbc60>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   26.691051]  [<ffffffff815ea0d0>] ? fsnotify+0xee0/0xee0
[   26.696478]  [<ffffffff81b4e569>] ? avc_policy_seqno+0x9/0x20
[   26.702336]  [<ffffffff8151d171>] do_loop_readv_writev+0x141/0x1e0
[   26.708646]  [<ffffffff81b45459>] ? security_file_permission+0x89/0x1e0
[   26.715374]  [<ffffffff825bbc60>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   26.722019]  [<ffffffff825bbc60>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   26.728666]  [<ffffffff8151f4cd>] do_readv_writev+0x5dd/0x6e0
[   26.734523]  [<ffffffff8151eef0>] ? vfs_write+0x530/0x530
[   26.740034]  [<ffffffff837756ac>] ? _raw_spin_unlock+0x2c/0x50
[   26.745990]  [<ffffffff8150da8d>] ? do_huge_pmd_anonymous_page+0x3dd/0xa10
[   26.752977]  [<ffffffff8149fe02>] ? handle_mm_fault+0x3f2/0x3190
[   26.759093]  [<ffffffff81235bcb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   26.765907]  [<ffffffff81b4e569>] ? avc_policy_seqno+0x9/0x20
[   26.771766]  [<ffffffff81b5fc58>] ? selinux_file_permission+0x348/0x460
[   26.778509]  [<ffffffff8151f648>] vfs_readv+0x78/0xb0
[   26.783674]  [<ffffffff81521999>] SyS_readv+0xd9/0x240
[   26.788932]  [<ffffffff815218c0>] ? rw_copy_check_uvector+0x2d0/0x2d0
[   26.795483]  [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
[   26.802037]  [<ffffffff837761d9>] entry_SYSCALL_64_fastpath+0x16/0x92
[   26.808597] 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 
[   26.835157] RIP  [<ffffffff825bc97d>] sg_read+0xd1d/0x1490
[   26.840885]  RSP <ffff8800b3c17b00>
[   26.844594] ---[ end trace 08b8c0ce5d181d09 ]---
[   26.849353] Kernel panic - not syncing: Fatal exception
[   26.855146] Dumping ftrace buffer:
[   26.858659]    (ftrace buffer empty)
[   26.862340] Kernel Offset: disabled
[   26.865954] Rebooting in 86400 seconds..