[....] Starting enhanced syslogd: rsyslogd[   12.802630] audit: type=1400 audit(1516516313.507:4): avc:  denied  { syslog } for  pid=3177 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 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

Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   85.810858] sg_write: data in/out 8454115/514 bytes for SCSI command 0x0-- guessing data in;
[   85.810858]    program syzkaller388557 not setting count and/or reply_len properly
[   85.828286] kasan: CONFIG_KASAN_INLINE enabled
[   85.832892] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   85.840231] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   85.846434] Dumping ftrace buffer:
[   85.849941]    (ftrace buffer empty)
[   85.853622] Modules linked in:
[   85.856902] CPU: 0 PID: 3374 Comm: syzkaller388557 Not tainted 4.9.77-ge12a9c4 #27
[   85.864574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   85.873903] task: ffff8801c8e68000 task.stack: ffff8801ceec8000
[   85.879928] RIP: 0010:[<ffffffff82669a0c>]  [<ffffffff82669a0c>] sg_read+0xd0c/0x1440
[   85.887998] RSP: 0018:ffff8801ceecfa50  EFLAGS: 00010246
[   85.893422] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826699d3
[   85.900663] RDX: 0000000000000000 RSI: 000000000000001a RDI: ffff8801c6838170
[   85.907905] RBP: ffff8801ceecfb58 R08: 0000000000000000 R09: ffffed00391d1a11
[   85.915148] R10: 0000000000000005 R11: ffffed00391d1a10 R12: 0000000000001000
[   85.922390] R13: 0000000000000000 R14: ffff8801c8e8d060 R15: ffff8801c6838140
[   85.929635] FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000096b7840
[   85.937832] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   85.943692] CR2: 0000000020f93fcb CR3: 00000001c72e4000 CR4: 0000000000160670
[   85.950944] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   85.958720] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   85.965965] Stack:
[   85.968092]  ffff8801d55866c0 ffff8801ceecfa80 ffff8801c6838158 ffff88010000001a
[   85.976077]  0000000000000000 ffff8801c6838168 000000000000003e 0000000000000246
[   85.984342]  ffff8801d163c500 1ffff10039dd9f56 0000000020f93fcb 0000000020f93fef
[   85.992305] Call Trace:
[   85.994868]  [<ffffffff82668d00>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   86.002284]  [<ffffffff81643de0>] ? fsnotify+0xf30/0xf30
[   86.007706]  [<ffffffff81bdb879>] ? avc_policy_seqno+0x9/0x20
[   86.013561]  [<ffffffff8156c5c1>] do_loop_readv_writev.part.17+0x141/0x1e0
[   86.020545]  [<ffffffff81bd2939>] ? security_file_permission+0x89/0x1e0
[   86.027265]  [<ffffffff82668d00>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   86.033913]  [<ffffffff82668d00>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   86.040551]  [<ffffffff815714e2>] compat_do_readv_writev+0x522/0x760
[   86.047016]  [<ffffffff81570fc0>] ? do_pwritev+0x1a0/0x1a0
[   86.052611]  [<ffffffff838b235c>] ? _raw_spin_unlock+0x2c/0x50
[   86.058557]  [<ffffffff814cefce>] ? handle_mm_fault+0x6ee/0x2530
[   86.064671]  [<ffffffff814ce8e0>] ? __pmd_alloc+0x410/0x410
[   86.070350]  [<ffffffff81bec1c2>] ? selinux_file_permission+0x82/0x460
[   86.077594]  [<ffffffff81571803>] compat_readv+0xe3/0x150
[   86.083100]  [<ffffffff81571964>] do_compat_readv+0xf4/0x1d0
[   86.088867]  [<ffffffff81571870>] ? compat_readv+0x150/0x150
[   86.094640]  [<ffffffff81573ed6>] compat_SyS_readv+0x26/0x30
[   86.100404]  [<ffffffff81573eb0>] ? SyS_pwritev2+0x80/0x80
[   86.106000]  [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890
[   86.112113]  [<ffffffff81003036>] ? trace_hardirqs_off_thunk+0x1a/0x1c
[   86.118749]  [<ffffffff838b44b4>] entry_SYSENTER_compat+0x74/0x83
[   86.124950] 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 
[   86.154032] RIP  [<ffffffff82669a0c>] sg_read+0xd0c/0x1440
[   86.159755]  RSP <ffff8801ceecfa50>
[   86.163560] ---[ end trace d2046fa0c27a026e ]---
[   86.168468] Kernel panic - not syncing: Fatal exception
[   86.174249] Dumping ftrace buffer:
[   86.177759]    (ftrace buffer empty)
[   86.181454] Kernel Offset: disabled
[   86.185057] Rebooting in 86400 seconds..