[....] Starting enhanced syslogd: rsyslogd[   13.032116] audit: type=1400 audit(1517648836.637:4): avc:  denied  { syslog } for  pid=3779 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 '10.128.0.49' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   47.736019] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller971839/3953
[   47.744899] caller is __this_cpu_preempt_check+0x1c/0x20
[   47.750324] CPU: 1 PID: 3953 Comm: syzkaller971839 Not tainted 4.9.79-g47af77b #26
[   47.758005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.767330]  ffff8801d4bd76d8 ffffffff81d94b09 0000000000000001 ffffffff83c18800
[   47.775303]  ffffffff83f454c0 ffff8801d6a93000 0000000000000003 ffff8801d4bd7718
[   47.783279]  ffffffff81dfc0e4 ffff8801d4bd7730 ffffffff83f454c0 dffffc0000000000
[   47.791242] Call Trace:
[   47.793811]  [<ffffffff81d94b09>] dump_stack+0xc1/0x128
[   47.799502]  [<ffffffff81dfc0e4>] check_preemption_disabled+0x1d4/0x200
[   47.806224]  [<ffffffff81dfc14c>] __this_cpu_preempt_check+0x1c/0x20
[   47.812685]  [<ffffffff833fcdd8>] ipcomp_init_state+0x188/0x930
[   47.818715]  [<ffffffff81234b41>] ? __lock_is_held+0xa1/0xf0
[   47.824483]  [<ffffffff833691f0>] ipcomp4_init_state+0xb0/0x7d0
[   47.830509]  [<ffffffff833db4c7>] __xfrm_init_state+0x3e7/0xb30
[   47.836539]  [<ffffffff833dbc2a>] xfrm_init_state+0x1a/0x20
[   47.842243]  [<ffffffff83575b69>] pfkey_add+0x1fb9/0x3470
[   47.847750]  [<ffffffff83573bb0>] ? pfkey_delete+0x360/0x360
[   47.853517]  [<ffffffff8356af00>] ? pfkey_seq_stop+0x80/0x80
[   47.859285]  [<ffffffff82ef282a>] ? __skb_clone+0x24a/0x7d0
[   47.864965]  [<ffffffff83573bb0>] ? pfkey_delete+0x360/0x360
[   47.870751]  [<ffffffff8356d65b>] pfkey_process+0x68b/0x750
[   47.876433]  [<ffffffff8356cfd0>] ? pfkey_send_new_mapping+0x11b0/0x11b0
[   47.883243]  [<ffffffff8123b63b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   47.890053]  [<ffffffff8356eeb9>] pfkey_sendmsg+0x3a9/0x760
[   47.895733]  [<ffffffff8356eb10>] ? pfkey_spdget+0x820/0x820
[   47.901500]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   47.907011]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   47.912778]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   47.919327]  [<ffffffff81465f97>] ? __lru_cache_add+0x187/0x250
[   47.925358]  [<ffffffff81dfbf4b>] ? check_preemption_disabled+0x3b/0x200
[   47.932165]  [<ffffffff815d1571>] ? __fget+0x201/0x3a0
[   47.937414]  [<ffffffff815d1598>] ? __fget+0x228/0x3a0
[   47.942657]  [<ffffffff815d13b7>] ? __fget+0x47/0x3a0
[   47.947817]  [<ffffffff815d18d8>] ? __fget_light+0x188/0x1e0
[   47.953581]  [<ffffffff815d1948>] ? __fdget+0x18/0x20
[   47.958742]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   47.964333]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   47.970101]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   47.976130]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   47.982295]  [<ffffffff8123b63b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   47.989104]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   47.994438]  [<ffffffff838b346e>] entry_SYSCALL_64_fastpath+0x29/0xe8