[....] Starting enhanced syslogd: rsyslogd[   10.080324] audit: type=1400 audit(1513737036.495:5): avc:  denied  { syslog } for  pid=2984 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: [   13.501515] audit: type=1400 audit(1513737039.916:6): avc:  denied  { map } for  pid=3123 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Warning: Permanently added 'ci-upstream-kasan-gce-5,10.128.0.8' (ECDSA) to the list of known hosts.
[   26.335927] audit: type=1400 audit(1513737052.750:7): avc:  denied  { map } for  pid=3139 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
2017/12/20 02:30:52 parsed 1 programs
2017/12/20 02:30:52 executed programs: 0
[   26.440892] audit: type=1400 audit(1513737052.855:8): avc:  denied  { map } for  pid=3139 comm="syz-execprog" path="/root/syzkaller-shm078919915" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
[   26.516452] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
result: failed=false hanged=false err=executor 5: failed: invalid command number 7887609648979993647 (errno 110)
child failed (errno 1)
loop failed (errno 0)


invalid command number 7887609648979993647 (errno 110)
child failed (errno 1)
loop failed (errno 0)
[   29.776443] kasan: CONFIG_KASAN_INLINE enabled
[   29.781090] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   29.788433] general protection fault: 0000 [#1] SMP KASAN
[   29.793945] Dumping ftrace buffer:
[   29.797456]    (ftrace buffer empty)
[   29.801140] Modules linked in:
[   29.804311] CPU: 1 PID: 4032 Comm: syz-executor1 Not tainted 4.15.0-rc4+ #229
[   29.811556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.820894] RIP: 0010:native_write_cr4+0x4/0x10
[   29.825536] RSP: 0018:ffff8801d9acf058 EFLAGS: 00010093
[   29.830873] RAX: ffff8801bf6d2400 RBX: 00000000001606e0 RCX: ffffffff811a2a92
[   29.838119] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0
[   29.845363] RBP: ffff8801d9acf058 R08: 1ffff1003b359d67 R09: 0000000000000004
[   29.852611] R10: ffff8801d9acefc8 R11: 0000000000000004 R12: 0000000000000093
[   29.859859] R13: ffff8801bf6d2400 R14: ffff8801db515850 R15: ffff8801db515850
[   29.867108] FS:  00007f9c7f89c700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
[   29.875309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.881167] CR2: 00007f1182a8a000 CR3: 0000000005e22006 CR4: 00000000001626e0
[   29.888411] Call Trace:
[   29.890978]  hardware_disable+0x34a/0x4b0
[   29.895109]  ? kvm_io_bus_get_dev+0x2a0/0x2a0
[   29.899585]  kvm_arch_hardware_disable+0x35/0xd0
[   29.904318]  ? kvm_io_bus_get_dev+0x2a0/0x2a0
[   29.908786]  hardware_disable_nolock+0x30/0x40
[   29.913343]  on_each_cpu+0xca/0x1b0
[   29.916949]  hardware_disable_all_nolock+0x3e/0x50
[   29.921854]  kvm_put_kvm+0x956/0xdf0
[   29.925552]  ? kvm_clear_guest+0xb0/0xb0
[   29.929597]  ? kvm_irqfd_release+0xd1/0x120
[   29.933896]  ? lock_downgrade+0x980/0x980
[   29.938034]  ? _raw_spin_unlock_irq+0x27/0x70
[   29.942511]  ? kvm_irqfd_release+0xdd/0x120
[   29.946809]  ? kvm_irqfd_release+0xdd/0x120
[   29.951110]  ? kvm_put_kvm+0xdf0/0xdf0
[   29.954973]  kvm_vm_release+0x42/0x50
[   29.958750]  __fput+0x327/0x7e0
[   29.962008]  ? fput+0x140/0x140
[   29.965267]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   29.971127]  ? _raw_spin_unlock_irq+0x27/0x70
[   29.975602]  ____fput+0x15/0x20
[   29.978860]  task_work_run+0x199/0x270
[   29.982726]  ? task_work_cancel+0x210/0x210
[   29.987023]  ? _raw_spin_unlock+0x22/0x30
[   29.991148]  ? switch_task_namespaces+0x87/0xc0
[   29.995795]  do_exit+0x9bb/0x1ad0
[   29.999223]  ? check_noncircular+0x20/0x20
[   30.003438]  ? mm_update_next_owner+0x930/0x930
[   30.008085]  ? debug_check_no_locks_freed+0x3c0/0x3c0
[   30.013252]  ? __might_sleep+0x95/0x190
[   30.017207]  ? find_held_lock+0x35/0x1d0
[   30.021253]  ? futex_wait+0x402/0x990
[   30.025031]  ? lock_downgrade+0x980/0x980
[   30.029162]  ? __unqueue_futex+0x1c0/0x290
[   30.033372]  ? lock_release+0xa40/0xa40
[   30.037328]  ? fault_in_user_writeable+0x90/0x90
[   30.042082]  ? do_raw_spin_trylock+0x190/0x190
[   30.046653]  ? check_noncircular+0x20/0x20
[   30.050884]  ? drop_futex_key_refs.isra.13+0x63/0xb0
[   30.055976]  ? futex_wait+0x69e/0x990
[   30.059773]  ? find_held_lock+0x35/0x1d0
[   30.063825]  ? get_signal+0x7ae/0x16c0
[   30.067701]  ? lock_downgrade+0x980/0x980
[   30.071843]  do_group_exit+0x149/0x400
[   30.075715]  ? do_raw_spin_trylock+0x190/0x190
[   30.080283]  ? SyS_exit+0x30/0x30
[   30.083719]  ? _raw_spin_unlock_irq+0x27/0x70
[   30.088202]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   30.093205]  get_signal+0x73f/0x16c0
[   30.096914]  ? ptrace_notify+0x130/0x130
[   30.100970]  ? exit_robust_list+0x240/0x240
[   30.105284]  ? mmap_region+0x52e/0x15a0
[   30.109251]  ? find_held_lock+0x35/0x1d0
[   30.113305]  do_signal+0x94/0x1ee0
[   30.116831]  ? lock_downgrade+0x980/0x980
[   30.120971]  ? userfaultfd_unmap_complete+0x327/0x510
[   30.126150]  ? setup_sigcontext+0x7d0/0x7d0
[   30.130462]  ? userfaultfd_unmap_prep+0x540/0x540
[   30.135294]  ? do_mmap+0x362/0xe00
[   30.138822]  ? up_write+0x6b/0x120
[   30.142352]  ? down_read_killable+0x180/0x180
[   30.146835]  ? security_mmap_file+0x143/0x180
[   30.151321]  ? vm_mmap_pgoff+0x1fc/0x280
[   30.155372]  ? exit_to_usermode_loop+0x8c/0x310
[   30.160030]  exit_to_usermode_loop+0x214/0x310
[   30.164609]  ? trace_event_raw_event_sys_exit+0x260/0x260
[   30.170139]  syscall_return_slowpath+0x490/0x550
[   30.174878]  ? prepare_exit_to_usermode+0x340/0x340
[   30.179880]  ? entry_SYSCALL_64_fastpath+0x69/0x96
[   30.184798]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   30.189798]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   30.194543]  entry_SYSCALL_64_fastpath+0x94/0x96
[   30.199280] RIP: 0033:0x452a09
[   30.202451] RSP: 002b:00007f9c7f89bce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   30.210142] RAX: fffffffffffffe00 RBX: 000000000071c038 RCX: 0000000000452a09
[   30.217394] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071c038
[   30.224646] RBP: 000000000071c038 R08: 0000000000000000 R09: 000000000071c010
[   30.231896] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   30.239148] R13: 00007ffcd900fe6f R14: 00007f9c7f89c9c0 R15: 0000000000000006
[   30.246407] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d 
[   30.265540] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801d9acf058
[   30.271673] ---[ end trace 96b99e65f8f8632f ]---
[   30.276412] Kernel panic - not syncing: Fatal exception
[   30.282234] Dumping ftrace buffer:
[   30.285750]    (ftrace buffer empty)
[   30.289427] Kernel Offset: disabled
[   30.293021] Rebooting in 86400 seconds..