[....] Starting enhanced syslogd: rsyslogd[   10.372314] audit: type=1400 audit(1515261227.698:4): avc:  denied  { syslog } for  pid=3174 comm="rsyslogd" capability=34  scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
Starting mcstransd: 
[....] 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

Warning: Permanently added '10.128.0.33' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   19.967942] sg_write: data in/out 1505792696/163 bytes for SCSI command 0xdb-- guessing data in;
[   19.967942]    program syzkaller226294 not setting count and/or reply_len properly
[   19.970887] kasan: CONFIG_KASAN_INLINE enabled
[   19.971509] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   19.972476] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   19.973295] Dumping ftrace buffer:
[   19.973769]    (ftrace buffer empty)
[   19.974290] Modules linked in:
[   19.974755] CPU: 1 PID: 3323 Comm: syzkaller226294 Not tainted 4.9.75-g06fe41f #16
[   19.975759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   19.977010] task: ffff8801ca96e000 task.stack: ffff8801bfb70000
[   19.977804] RIP: 0010:[<ffffffff8266880c>]  [<ffffffff8266880c>] sg_read+0xd0c/0x1440
[   19.978900] RSP: 0018:ffff8801bfb77a50  EFLAGS: 00010246
[   19.979617] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826687d3
[   19.980584] RDX: 0000000000000000 RSI: 0000000000000081 RDI: ffff8801c9282270
[   19.981533] RBP: ffff8801bfb77b58 R08: 0000000000000000 R09: ffffed00391434e9
[   19.982482] R10: 0000000000000005 R11: ffffed00391434e8 R12: 0000000000001000
[   19.983431] R13: 0000000000000000 R14: ffff8801c8a1a720 R15: ffff8801c9282240
[   19.984394] FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009a0b840
[   19.985465] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   19.986247] CR2: 00000000204bb000 CR3: 00000001c967a000 CR4: 0000000000160670
[   19.987198] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.988862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.996094] Stack:
[   19.998211]  ffff8801d1c84580 ffff8801bfb77a80 ffff8801c9282258 ffff880100000081
[   20.006152]  0000000000000000 ffff8801c9282268 00000000000000a5 0000000000000246
[   20.014093]  ffff8801d161e500 1ffff10037f6ef56 00000000203d4000 00000000203d4024
[   20.022036] Call Trace:
[   20.024590]  [<ffffffff82667b00>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   20.031219]  [<ffffffff81642ca0>] ? fsnotify+0xf30/0xf30
[   20.036634]  [<ffffffff81bda799>] ? avc_policy_seqno+0x9/0x20
[   20.042481]  [<ffffffff8156b481>] do_loop_readv_writev.part.17+0x141/0x1e0
[   20.049458]  [<ffffffff81bd1859>] ? security_file_permission+0x89/0x1e0
[   20.056173]  [<ffffffff82667b00>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   20.062802]  [<ffffffff82667b00>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   20.069434]  [<ffffffff815703a2>] compat_do_readv_writev+0x522/0x760
[   20.075901]  [<ffffffff8156fe80>] ? do_pwritev+0x1a0/0x1a0
[   20.081495]  [<ffffffff838b01bc>] ? _raw_spin_unlock+0x2c/0x50
[   20.087434]  [<ffffffff814cde8e>] ? handle_mm_fault+0x6ee/0x2530
[   20.093541]  [<ffffffff814cd7a0>] ? __pmd_alloc+0x410/0x410
[   20.099214]  [<ffffffff81beb0e2>] ? selinux_file_permission+0x82/0x460
[   20.105843]  [<ffffffff815706c3>] compat_readv+0xe3/0x150
[   20.111343]  [<ffffffff81570824>] do_compat_readv+0xf4/0x1d0
[   20.117103]  [<ffffffff81570730>] ? compat_readv+0x150/0x150
[   20.122864]  [<ffffffff81572d96>] compat_SyS_readv+0x26/0x30
[   20.128623]  [<ffffffff81572d70>] ? SyS_pwritev2+0x80/0x80
[   20.134211]  [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890
[   20.140321]  [<ffffffff81003036>] ? trace_hardirqs_off_thunk+0x1a/0x1c
[   20.146949]  [<ffffffff838b2334>] entry_SYSENTER_compat+0x74/0x83
[   20.153141] Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8a 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 df 05 00 00 48 8b 1b 48 85 db 0f 84 51 03 00 
[   20.179395] RIP  [<ffffffff8266880c>] sg_read+0xd0c/0x1440
[   20.185099]  RSP <ffff8801bfb77a50>
[   20.188819] ---[ end trace 4d51be33f89b82af ]---
[   20.193564] Kernel panic - not syncing: Fatal exception
[   20.199326] Dumping ftrace buffer:
[   20.202836]    (ftrace buffer empty)
[   20.206512] Kernel Offset: disabled
[   20.210104] Rebooting in 86400 seconds..