[   16.451467] 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.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   20.271679] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available)
[   20.524569] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available)
[   21.427215] random: sshd: uninitialized urandom read (32 bytes read, 115 bits of entropy available)
[   21.600603] random: sshd: uninitialized urandom read (32 bytes read, 120 bits of entropy available)
Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts.
[   26.989329] random: sshd: uninitialized urandom read (32 bytes read, 126 bits of entropy available)
executing program
[   27.089219] sg_write: data in/out 327644/96 bytes for SCSI command 0x0-- guessing data in;
[   27.089219]    program syzkaller540624 not setting count and/or reply_len properly
[   27.108377] kasan: CONFIG_KASAN_INLINE enabled
[   27.113585] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   27.126401] Dumping ftrace buffer:
[   27.129907]    (ftrace buffer empty)
[   27.133583] Modules linked in:
[   27.136852] CPU: 0 PID: 3325 Comm: syzkaller540624 Not tainted 4.4.107-g610c835 #12
[   27.144608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.153928] task: ffff8801d1230000 task.stack: ffff8800b4750000
[   27.159949] RIP: 0010:[<ffffffff825bb1cd>]  [<ffffffff825bb1cd>] sg_read+0xd1d/0x1490
[   27.168000] RSP: 0018:ffff8800b4757b00  EFLAGS: 00010246
[   27.173414] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825bb194
[   27.180652] RDX: 0000000000000000 RSI: 0000000020ce2024 RDI: ffff8801d10a4370
[   27.187886] RBP: ffff8800b4757c08 R08: 0000000000000000 R09: 0000000000000001
[   27.195122] R10: 0000000000000000 R11: 1ffff100168eaf26 R12: 000000000000002b
[   27.202360] R13: 0000000000000000 R14: ffff8800b47b3480 R15: ffff8801d10a4340
[   27.209598] FS:  00000000021c8880(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   27.217789] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.223636] CR2: 0000000020ce2000 CR3: 00000000b3c2b000 CR4: 00000000001406f0
[   27.230874] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.238111] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.245346] Stack:
[   27.247459]  0000000000000000 000077ff80000000 ffff8800b4757b60 ffff8801d10a4358
[   27.255403]  0000000000000008 ffff8801d10a4368 000000000000004f 0000000000000001
[   27.263356]  ffff8800b7d49b80 0000000000001000 1ffff100168eaf6c 0000000020ce2024
[   27.271319] Call Trace:
[   27.273875]  [<ffffffff825ba4b0>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.280508]  [<ffffffff815e90c0>] ? fsnotify+0xee0/0xee0
[   27.285926]  [<ffffffff81b4d4f9>] ? avc_policy_seqno+0x9/0x20
[   27.291778]  [<ffffffff8151b341>] do_loop_readv_writev+0x141/0x1e0
[   27.298063]  [<ffffffff81b443e9>] ? security_file_permission+0x89/0x1e0
[   27.304782]  [<ffffffff825ba4b0>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.311412]  [<ffffffff825ba4b0>] ? sg_proc_seq_show_debug+0xd30/0xd30
[   27.318044]  [<ffffffff8151d69d>] do_readv_writev+0x5dd/0x6e0
[   27.323894]  [<ffffffff8151d0c0>] ? vfs_write+0x530/0x530
[   27.329397]  [<ffffffff825c44c0>] ? sg_ioctl+0x2c20/0x2c20
[   27.334986]  [<ffffffff8151aebb>] ? __vfs_write+0x10b/0x450
[   27.340663]  [<ffffffff8149e232>] ? handle_mm_fault+0x3f2/0x3190
[   27.346773]  [<ffffffff81233a2b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   27.353586]  [<ffffffff81b4d4f9>] ? avc_policy_seqno+0x9/0x20
[   27.359435]  [<ffffffff81b5ebe8>] ? selinux_file_permission+0x348/0x460
[   27.366150]  [<ffffffff81b443e9>] ? security_file_permission+0x89/0x1e0
[   27.372868]  [<ffffffff8151c600>] ? rw_verify_area+0x100/0x2f0
[   27.378804]  [<ffffffff8151d818>] vfs_readv+0x78/0xb0
[   27.383958]  [<ffffffff8151fb69>] SyS_readv+0xd9/0x240
[   27.389201]  [<ffffffff8151fa90>] ? rw_copy_check_uvector+0x2d0/0x2d0
[   27.395744]  [<ffffffff81003044>] ? lockdep_sys_exit_thunk+0x12/0x14
[   27.402204]  [<ffffffff83773d36>] entry_SYSCALL_64_fastpath+0x16/0x76
[   27.408745] 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 
[   27.435102] RIP  [<ffffffff825bb1cd>] sg_read+0xd1d/0x1490
[   27.440808]  RSP <ffff8800b4757b00>
[   27.444482] ---[ end trace 6ec5c2815cf7557e ]---
[   27.449240] Kernel panic - not syncing: Fatal exception
[   27.455026] Dumping ftrace buffer:
[   27.458545]    (ftrace buffer empty)
[   27.462221] Kernel Offset: disabled
[   27.465812] Rebooting in 86400 seconds..