[....] Starting enhanced syslogd: rsyslogd[ 10.809482] audit: type=1400 audit(1513385871.533:5): avc: denied { syslog } for pid=2992 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: [ 16.006040] audit: type=1400 audit(1513385876.729:6): avc: denied { map } for pid=3132 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-1,10.128.15.219' (ECDSA) to the list of known hosts.
executing program
[ 24.902865] audit: type=1400 audit(1513385885.626:7): avc: denied { map } for pid=3147 comm="syzkaller891810" path="/root/syzkaller891810500" 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
[ 24.934545] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[ 24.953582] kasan: CONFIG_KASAN_INLINE enabled
[ 24.958184] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 24.965530] general protection fault: 0000 [#1] SMP KASAN
[ 24.971043] Dumping ftrace buffer:
[ 24.974550] (ftrace buffer empty)
[ 24.978229] Modules linked in:
[ 24.981391] CPU: 1 PID: 3147 Comm: syzkaller891810 Not tainted 4.15.0-rc3+ #223
[ 24.988806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 24.998145] RIP: 0010:native_write_cr4+0x4/0x10
[ 25.002782] RSP: 0018:ffff8801cf9e75a0 EFLAGS: 00010093
[ 25.008114] RAX: ffff8801cafd8540 RBX: 00000000001606e0 RCX: ffffffff811a2a92
[ 25.015357] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0
[ 25.022601] RBP: ffff8801cf9e75a0 R08: 1ffff10039f3ce0f R09: 0000000000000004
[ 25.029837] R10: ffff8801cf9e7510 R11: 0000000000000004 R12: 0000000000000093
[ 25.037079] R13: ffff8801cafd8540 R14: ffff8801db514850 R15: ffff8801db514850
[ 25.044324] FS: 00000000018e5880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
[ 25.052520] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.058371] CR2: 0000000000000000 CR3: 0000000005e22003 CR4: 00000000001626e0
[ 25.065612] Call Trace:
[ 25.068181] hardware_disable+0x34a/0x4b0
[ 25.072304] ? kvm_io_bus_get_dev+0x2a0/0x2a0
[ 25.076776] kvm_arch_hardware_disable+0x35/0xd0
[ 25.081510] ? kvm_io_bus_get_dev+0x2a0/0x2a0
[ 25.085976] hardware_disable_nolock+0x30/0x40
[ 25.090528] on_each_cpu+0xca/0x1b0
[ 25.094124] hardware_disable_all_nolock+0x3e/0x50
[ 25.099030] kvm_put_kvm+0x956/0xdf0
[ 25.102730] ? kvm_clear_guest+0xb0/0xb0
[ 25.106764] ? kvm_irqfd_release+0xd1/0x120
[ 25.111058] ? lock_downgrade+0x980/0x980
[ 25.115183] ? _raw_spin_unlock_irq+0x27/0x70
[ 25.119646] ? trace_hardirqs_on_caller+0x421/0x5c0
[ 25.124640] ? kvm_irqfd_release+0xdd/0x120
[ 25.128939] ? kvm_irqfd_release+0xdd/0x120
[ 25.133230] ? kvm_put_kvm+0xdf0/0xdf0
[ 25.137087] kvm_vm_release+0x42/0x50
[ 25.140858] __fput+0x327/0x7e0
[ 25.144107] ? fput+0x140/0x140
[ 25.147357] ? trace_event_raw_event_sched_switch+0x800/0x800
[ 25.153211] ? _raw_spin_unlock_irq+0x27/0x70
[ 25.157680] ____fput+0x15/0x20
[ 25.160937] task_work_run+0x199/0x270
[ 25.164811] ? task_work_cancel+0x210/0x210
[ 25.169104] ? _raw_spin_unlock+0x22/0x30
[ 25.173224] ? switch_task_namespaces+0x87/0xc0
[ 25.177862] do_exit+0x9bb/0x1ad0
[ 25.181285] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[ 25.186533] ? mm_update_next_owner+0x930/0x930
[ 25.191170] ? find_held_lock+0x35/0x1d0
[ 25.195205] ? handle_mm_fault+0x248/0x8d0
[ 25.199405] ? find_held_lock+0x35/0x1d0
[ 25.203444] ? __do_page_fault+0x5f7/0xc90
[ 25.207645] ? lock_downgrade+0x980/0x980
[ 25.211764] ? user_return_notifier_unregister+0x23d/0x360
[ 25.217353] ? uprobe_post_sstep_notifier+0x120/0x120
[ 25.222509] ? __handle_mm_fault+0x3e20/0x3e20
[ 25.227063] ? kvm_on_user_return+0xe1/0x3c0
[ 25.231445] ? trace_hardirqs_on_caller+0x421/0x5c0
[ 25.236430] ? trace_hardirqs_on+0xd/0x10
[ 25.240545] ? kvm_on_user_return+0x286/0x3c0
[ 25.245011] ? trace_hardirqs_off+0xd/0x10
[ 25.249216] ? exit_to_usermode_loop+0x198/0x310
[ 25.254291] ? ioctl_preallocate+0x2b0/0x2b0
[ 25.258666] ? trace_event_raw_event_sys_exit+0x260/0x260
[ 25.264173] ? selinux_capable+0x40/0x40
[ 25.268204] ? __close_fd+0x222/0x360
[ 25.271975] do_group_exit+0x149/0x400
[ 25.275829] ? prepare_exit_to_usermode+0x340/0x340
[ 25.280817] ? SyS_exit+0x30/0x30
[ 25.284247] ? trace_hardirqs_on_caller+0x421/0x5c0
[ 25.289237] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 25.293968] SyS_exit_group+0x1d/0x20
[ 25.297741] entry_SYSCALL_64_fastpath+0x1f/0x96
[ 25.302461] RIP: 0033:0x441d18
[ 25.305619] RSP: 002b:00007ffd25501d58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 25.313292] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000441d18
[ 25.320527] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[ 25.327763] RBP: 00000000006cd018 R08: 00000000000000e7 R09: ffffffffffffffd0
[ 25.334999] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000404120
[ 25.342238] R13: 00000000004041b0 R14: 0000000000000000 R15: 0000000000000000
[ 25.349485] 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
[ 25.368559] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801cf9e75a0
[ 25.374674] ---[ end trace d46e91405a267098 ]---
[ 25.379392] Kernel panic - not syncing: Fatal exception
[ 25.384752] Dumping ftrace buffer:
[ 25.388260] (ftrace buffer empty)
[ 25.391939] Kernel Offset: disabled
[ 25.395532] Rebooting in 86400 seconds..