[....] Starting enhanced syslogd: rsyslogd[ 10.771178] audit: type=1400 audit(1514619984.364:5): avc: denied { syslog } for pid=3039 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[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Starting mcstransd:
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 16.533092] audit: type=1400 audit(1514619990.126:6): avc: denied { map } for pid=3179 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 '10.128.0.29' (ECDSA) to the list of known hosts.
executing program
[ 38.697344] audit: type=1400 audit(1514620012.291:7): avc: denied { map } for pid=3197 comm="syzkaller756645" path="/root/syzkaller756645256" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[ 38.729952] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[ 38.741907] kasan: CONFIG_KASAN_INLINE enabled
[ 38.746501] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 38.753859] general protection fault: 0000 [#1] SMP KASAN
[ 38.759362] Dumping ftrace buffer:
[ 38.762865] (ftrace buffer empty)
[ 38.766543] Modules linked in:
[ 38.769704] CPU: 0 PID: 3197 Comm: syzkaller756645 Not tainted 4.15.0-rc5+ #241
[ 38.777113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 38.786462] RIP: 0010:native_write_cr4+0x4/0x10
[ 38.791091] RSP: 0018:ffff8801c7a5f5a0 EFLAGS: 00010093
[ 38.796417] RAX: ffff8801c7b8c1c0 RBX: 00000000001606f0 RCX: ffffffff811a2f12
[ 38.803658] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0
[ 38.810900] RBP: ffff8801c7a5f5a0 R08: 1ffff10038f4be0f R09: 0000000000000004
[ 38.818136] R10: ffff8801c7a5f510 R11: 0000000000000004 R12: 0000000000000093
[ 38.825379] R13: ffff8801c7b8c1c0 R14: ffff8801db215850 R15: ffff8801db215850
[ 38.832616] FS: 0000000000f79880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[ 38.840808] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 38.846657] CR2: 0000000020e12ffc CR3: 0000000006022006 CR4: 00000000001626f0
[ 38.853894] Call Trace:
[ 38.856452] hardware_disable+0x34a/0x4b0
[ 38.860573] ? kvm_io_bus_get_dev+0x2a0/0x2a0
[ 38.865039] kvm_arch_hardware_disable+0x35/0xd0
[ 38.869768] ? kvm_io_bus_get_dev+0x2a0/0x2a0
[ 38.874230] hardware_disable_nolock+0x30/0x40
[ 38.878778] on_each_cpu+0xca/0x1b0
[ 38.882373] hardware_disable_all_nolock+0x3e/0x50
[ 38.887272] kvm_put_kvm+0x956/0xdf0
[ 38.890958] ? kvm_clear_guest+0xb0/0xb0
[ 38.894988] ? kvm_irqfd_release+0xd1/0x120
[ 38.899277] ? lock_downgrade+0x980/0x980
[ 38.903398] ? _raw_spin_unlock_irq+0x27/0x70
[ 38.907862] ? kvm_irqfd_release+0xdd/0x120
[ 38.912150] ? kvm_irqfd_release+0xdd/0x120
[ 38.916436] ? kvm_put_kvm+0xdf0/0xdf0
[ 38.920287] kvm_vm_release+0x42/0x50
[ 38.924053] __fput+0x327/0x7e0
[ 38.927300] ? fput+0x140/0x140
[ 38.930548] ? trace_event_raw_event_sched_switch+0x800/0x800
[ 38.936394] ? _raw_spin_unlock_irq+0x27/0x70
[ 38.940864] ____fput+0x15/0x20
[ 38.944112] task_work_run+0x199/0x270
[ 38.947968] ? task_work_cancel+0x210/0x210
[ 38.952253] ? _raw_spin_unlock+0x22/0x30
[ 38.956367] ? switch_task_namespaces+0x87/0xc0
[ 38.961011] do_exit+0x9bb/0x1ad0
[ 38.964428] ? __pmd_alloc+0x4e0/0x4e0
[ 38.968281] ? trace_event_raw_event_kvm_age_page+0x340/0x340
[ 38.974133] ? mm_update_next_owner+0x930/0x930
[ 38.978767] ? find_held_lock+0x35/0x1d0
[ 38.982798] ? handle_mm_fault+0x248/0x8d0
[ 38.987000] ? find_held_lock+0x35/0x1d0
[ 38.991042] ? __do_page_fault+0x5f7/0xc90
[ 38.995935] ? lock_downgrade+0x980/0x980
[ 39.000049] ? down_read_trylock+0xdb/0x170
[ 39.004333] ? __do_page_fault+0x32d/0xc90
[ 39.008536] ? __handle_mm_fault+0x3ce0/0x3ce0
[ 39.013082] ? vmacache_find+0x5f/0x280
[ 39.017023] ? up_read+0x1a/0x40
[ 39.020364] ? __do_page_fault+0x3d6/0xc90
[ 39.024570] ? mm_fault_error+0x2c0/0x2c0
[ 39.028681] ? trace_event_raw_event_kvm_age_page+0x340/0x340
[ 39.034532] ? do_vfs_ioctl+0x486/0x1520
[ 39.038562] ? _cond_resched+0x14/0x30
[ 39.042416] ? __fget_light+0x297/0x380
[ 39.046356] ? fget_raw+0x20/0x20
[ 39.049775] ? __do_page_fault+0xc90/0xc90
[ 39.053973] ? putname+0xf3/0x130
[ 39.057395] do_group_exit+0x149/0x400
[ 39.061247] ? SyS_exit+0x30/0x30
[ 39.064667] ? trace_hardirqs_on_caller+0x421/0x5c0
[ 39.069658] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 39.074386] SyS_exit_group+0x1d/0x20
[ 39.078151] entry_SYSCALL_64_fastpath+0x1f/0x96
[ 39.082870] RIP: 0033:0x43e988
[ 39.086024] RSP: 002b:00007fff1e131438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 39.093698] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043e988
[ 39.100931] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[ 39.108167] RBP: 00000000006ca018 R08: 00000000000000e7 R09: ffffffffffffffd0
[ 39.115408] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004016b0
[ 39.122660] R13: 0000000000401740 R14: 0000000000000000 R15: 0000000000000000
[ 39.129903] 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
[ 39.148970] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801c7a5f5a0
[ 39.155083] ---[ end trace 56ff984861277cbe ]---
[ 39.159803] Kernel panic - not syncing: Fatal exception
[ 39.165160] Dumping ftrace buffer:
[ 39.168664] (ftrace buffer empty)
[ 39.172342] Kernel Offset: disabled
[ 39.175934] Rebooting in 86400 seconds..