[....] Starting enhanced syslogd: rsyslogd[   15.509245] audit: type=1400 audit(1570874285.755:4): avc:  denied  { syslog } for  pid=1921 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

syzkaller login: [   20.399802] ------------[ cut here ]------------
[   20.404651] kernel BUG at mm/vmstat.c:1425!
[   20.408954] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   20.414911] Modules linked in:
[   20.418305] CPU: 1 PID: 63 Comm: kworker/1:1 Not tainted 4.4.174+ #17
[   20.425382] Workqueue: vmstat vmstat_update
[   20.429911] task: ffff8801d8cfaf80 task.stack: ffff8801d8d70000
[   20.436473] RIP: 0010:[<ffffffff8140c9f9>]  [<ffffffff8140c9f9>] vmstat_update+0x99/0xb0
[   20.445959] RSP: 0018:ffff8801d8d77bc0  EFLAGS: 00010287
[   20.452671] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
[   20.460391] RDX: 0000000000000000 RSI: ffffffff81b0abec RDI: ffff8801d8cfb378
[   20.468665] RBP: ffff8801d8d77be0 R08: ffffffff82836950 R09: ffff8801d8cfb890
[   20.475923] R10: ffffffff83a189d0 R11: 0000000000000000 R12: ffff8801db71b380
[   20.484345] R13: ffff8801d8d77c78 R14: ffff8801d8c4e300 R15: ffff8801db71df00
[   20.491871] FS:  0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
[   20.500092] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.506730] CR2: 00005626092382b8 CR3: 0000000002e0a000 CR4: 00000000001606b0
[   20.514289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.521653] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.529671] Stack:
[   20.531824]  0000000000000000 ffff8801db71b380 ffff8801d8d77c78 ffff8801d8c4e300
[   20.541115]  ffff8801d8d77d00 ffffffff81122c25 ffffffff81122b42 ffffffff81159431
[   20.549302]  ffff8801d8c4e348 ffff880000279680 ffff880100000000 ffff8801d8c4e320
[   20.557551] Call Trace:
[   20.560125]  [<ffffffff81122c25>] process_one_work+0x825/0x1720
[   20.566278]  [<ffffffff81122b42>] ? process_one_work+0x742/0x1720
[   20.572504]  [<ffffffff81159431>] ? finish_task_switch+0x1e1/0x660
[   20.578816]  [<ffffffff81122400>] ? cancel_delayed_work_sync+0x20/0x20
[   20.585911]  [<ffffffff81124004>] worker_thread+0x4e4/0xf50
[   20.591712]  [<ffffffff82708233>] ? __schedule+0x7e3/0x1ee0
[   20.597462]  [<ffffffff81123b20>] ? process_one_work+0x1720/0x1720
[   20.603808]  [<ffffffff811342c3>] kthread+0x273/0x310
[   20.608997]  [<ffffffff81134050>] ? kthread_create_on_node+0x4c0/0x4c0
[   20.615918]  [<ffffffff82718079>] ? _raw_spin_unlock_irq+0x39/0x60
[   20.622562]  [<ffffffff81159431>] ? finish_task_switch+0x1e1/0x660
[   20.628869]  [<ffffffff81159403>] ? finish_task_switch+0x1b3/0x660
[   20.635164]  [<ffffffff827081ff>] ? __schedule+0x7af/0x1ee0
[   20.640851]  [<ffffffff827081f3>] ? __schedule+0x7a3/0x1ee0
[   20.646547]  [<ffffffff827081ff>] ? __schedule+0x7af/0x1ee0
[   20.652332]  [<ffffffff81134050>] ? kthread_create_on_node+0x4c0/0x4c0
[   20.659009]  [<ffffffff82718fc5>] ret_from_fork+0x55/0x80
[   20.664549]  [<ffffffff81134050>] ? kthread_create_on_node+0x4c0/0x4c0
[   20.671326] Code: 89 f6 e8 4b 95 d1 ff 5b 41 5c 41 5d 41 5e 5d c3 e8 cd e3 6f 00 89 c0 f0 48 0f ab 05 92 f4 c1 02 72 09 5b 41 5c 41 5d 41 5e 5d c3 <0f> 0b e8 c0 84 07 00 eb af 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 
[   20.699931] RIP  [<ffffffff8140c9f9>] vmstat_update+0x99/0xb0
[   20.706131]  RSP <ffff8801d8d77bc0>
[   20.710033] ---[ end trace 1ca0afe0d402412a ]---
[   20.715052] Kernel panic - not syncing: Fatal exception
[   20.721378] Kernel Offset: disabled
[   20.724993] Rebooting in 86400 seconds..