[....] Starting enhanced syslogd: rsyslogd[ 12.397296] audit: type=1400 audit(1516166728.680:5): avc: denied { syslog } for pid=3493 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: [ 18.435241] audit: type=1400 audit(1516166734.718:6): avc: denied { map } for pid=3633 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 '10.128.0.7' (ECDSA) to the list of known hosts. executing program executing program [ 35.649533] audit: type=1400 audit(1516166751.932:7): avc: denied { map } for pid=3650 comm="syzkaller769023" path="/root/syzkaller769023515" 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 [ 35.681806] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 40.867118] WARNING: CPU: 1 PID: 4236 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 40.876510] Kernel panic - not syncing: panic_on_warn set ... [ 40.876510] [ 40.883853] CPU: 1 PID: 4236 Comm: syzkaller769023 Not tainted 4.15.0-rc8+ #174 [ 40.891282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.900612] Call Trace: [ 40.903190] dump_stack+0x194/0x257 [ 40.906804] ? arch_local_irq_restore+0x53/0x53 [ 40.911459] ? vsnprintf+0x1ed/0x1900 [ 40.915243] panic+0x1e4/0x41c [ 40.918414] ? refcount_error_report+0x214/0x214 [ 40.923145] ? show_regs_print_info+0x18/0x18 [ 40.927626] ? __warn+0x1c1/0x200 [ 40.931067] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 40.936070] __warn+0x1dc/0x200 [ 40.939339] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 40.944335] report_bug+0x211/0x2d0 [ 40.947943] fixup_bug.part.11+0x37/0x80 [ 40.951988] do_error_trap+0x2d7/0x3e0 [ 40.955850] ? native_send_call_func_single_ipi+0x55/0x70 [ 40.961366] ? math_error+0x400/0x400 [ 40.965143] ? __lock_is_held+0xb6/0x140 [ 40.969191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.974023] do_invalid_op+0x1b/0x20 [ 40.977718] invalid_op+0x22/0x40 [ 40.981150] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 40.986745] RSP: 0018:ffff8801c3fdf580 EFLAGS: 00010293 [ 40.992081] RAX: ffff8801c4c8c680 RBX: ffff8801bddd0000 RCX: ffffffff810df29f [ 40.999325] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c4dd06e0 [ 41.006565] RBP: ffff8801c3fdf910 R08: 1ffff100389bab73 R09: 0000000000000001 [ 41.013807] R10: ffff8801c3fdf930 R11: 0000000000000000 R12: 0000000000000000 [ 41.021050] R13: ffff8801c4c8c680 R14: ffff8801c855d600 R15: ffff8801c4dd04c0 [ 41.028310] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 41.033310] ? mutex_lock_io_nested+0x1900/0x1900 [ 41.038130] ? vmcs_load+0xb3/0x180 [ 41.041735] ? crash_vmclear_local_loaded_vmcss+0x160/0x160 [ 41.047433] ? mark_held_locks+0xaf/0x100 [ 41.051557] ? vmx_vcpu_load+0x301/0xdc0 [ 41.056484] ? get_cpu_entry_area+0xc/0x30 [ 41.060708] ? vmx_vcpu_load+0x9cb/0xdc0 [ 41.064755] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 41.069573] ? handle_rdmsr+0x950/0x950 [ 41.073528] ? futex_wait_setup+0x3d0/0x3d0 [ 41.077828] ? __pmd_alloc+0x4e0/0x4e0 [ 41.081699] ? hash_futex+0x15/0x210 [ 41.085412] ? futex_wake+0x2ca/0x680 [ 41.089193] ? get_futex_key+0x1d50/0x1d50 [ 41.093412] ? kvm_arch_vcpu_load+0x1c1/0x890 [ 41.097885] ? kvm_lapic_hv_timer_in_use+0xae/0xd0 [ 41.102787] ? kvm_arch_vcpu_load+0x4b1/0x890 [ 41.107256] ? kvm_arch_end_assignment+0x20/0x20 [ 41.111991] ? kvm_arch_dev_ioctl+0x3b0/0x3b0 [ 41.116478] kvm_vcpu_ioctl+0x64c/0x1010 [ 41.120515] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 41.124726] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 41.130599] ? __fget+0x333/0x570 [ 41.134037] ? lock_downgrade+0x980/0x980 [ 41.138163] ? mm_fault_error+0x2c0/0x2c0 [ 41.142286] ? lock_release+0xa40/0xa40 [ 41.146238] ? __lock_is_held+0xb6/0x140 [ 41.150283] ? __fget+0x35c/0x570 [ 41.153716] ? iterate_fd+0x3f0/0x3f0 [ 41.157498] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 41.162235] ? retint_kernel+0x10/0x10 [ 41.166102] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 41.171008] ? selinux_file_ioctl+0x444/0x690 [ 41.175500] ? __fget_light+0x297/0x380 [ 41.179459] kvm_vcpu_compat_ioctl+0x364/0x450 [ 41.184025] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 41.188327] ? compat_SyS_futex+0x288/0x380 [ 41.192628] ? security_file_ioctl+0x7d/0xb0 [ 41.197009] ? security_file_ioctl+0x89/0xb0 [ 41.201401] compat_SyS_ioctl+0x151/0x2a30 [ 41.205609] ? do_fast_syscall_32+0x156/0xf9d [ 41.210078] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 41.214373] ? do_ioctl+0x60/0x60 [ 41.217809] do_fast_syscall_32+0x3ee/0xf9d [ 41.222124] ? do_int80_syscall_32+0x9d0/0x9d0 [ 41.226693] ? syscall_return_slowpath+0x2ad/0x550 [ 41.231594] ? prepare_exit_to_usermode+0x340/0x340 [ 41.236585] ? sysret32_from_system_call+0x5/0x3b [ 41.241405] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.246225] entry_SYSENTER_compat+0x54/0x63 [ 41.250603] RIP: 0023:0xf7f24c79 [ 41.253939] RSP: 002b:00000000f7f201fc EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 41.261616] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000000ae80 [ 41.268859] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 41.276103] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 41.283345] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 41.290588] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 41.298474] Dumping ftrace buffer: [ 41.302094] (ftrace buffer empty) [ 41.305781] Kernel Offset: disabled [ 41.309384] Rebooting in 86400 seconds..