[ 12.607283] audit: type=1400 audit(1514855546.891:5): avc: denied { syslog } for pid=3336 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [....] Starting enhanced syslogd: rsyslogd[?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: [ 18.345942] audit: type=1400 audit(1514855552.630:6): avc: denied { map } for pid=3485 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 '10.128.0.34' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 24.569519] audit: type=1400 audit(1514855558.854:7): avc: denied { map } for pid=3499 comm="syzkaller204093" path="/root/syzkaller204093755" 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 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 [ 24.617859] 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 [ 25.415133] WARNING: CPU: 0 PID: 3535 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 25.424595] Kernel panic - not syncing: panic_on_warn set ... [ 25.424595] [ 25.431953] CPU: 0 PID: 3535 Comm: syzkaller204093 Not tainted 4.15.0-rc6+ #155 [ 25.439393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.448733] Call Trace: [ 25.451297] dump_stack+0x194/0x257 [ 25.454899] ? arch_local_irq_restore+0x53/0x53 [ 25.459544] ? vsnprintf+0x1ed/0x1900 [ 25.463322] panic+0x1e4/0x41c [ 25.466487] ? refcount_error_report+0x214/0x214 [ 25.471225] ? show_regs_print_info+0x18/0x18 [ 25.475698] ? __warn+0x1c1/0x200 [ 25.479129] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 25.484115] __warn+0x1dc/0x200 [ 25.487368] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 25.492358] report_bug+0x211/0x2d0 [ 25.495967] fixup_bug.part.11+0x37/0x80 [ 25.499999] do_error_trap+0x2d7/0x3e0 [ 25.503859] ? check_noncircular+0x20/0x20 [ 25.508062] ? trace_hardirqs_on+0xd/0x10 [ 25.512183] ? math_error+0x400/0x400 [ 25.515960] ? __lock_is_held+0xb6/0x140 [ 25.520007] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.524830] do_invalid_op+0x1b/0x20 [ 25.528517] invalid_op+0x22/0x40 [ 25.531940] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 25.537534] RSP: 0018:ffff8801c000f580 EFLAGS: 00010293 [ 25.542868] RAX: ffff8801bf482480 RBX: ffff8801bcf75000 RCX: ffffffff810df21f [ 25.550116] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bc829920 [ 25.557357] RBP: ffff8801c000f910 R08: 1ffff10038001e93 R09: 0000000000000001 [ 25.564598] R10: ffff8801c000f930 R11: 0000000000000000 R12: 0000000000000000 [ 25.571848] R13: 1ffff10038001f4d R14: ffff8801d6769100 R15: ffff8801bc829700 [ 25.579102] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 25.584102] ? mark_held_locks+0xaf/0x100 [ 25.588224] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.593303] ? trace_hardirqs_on+0xd/0x10 [ 25.597427] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 25.602241] ? debug_stats_show+0xd0/0xd0 [ 25.606358] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.611447] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.616443] ? debug_object_free+0x2f1/0x5a0 [ 25.620820] ? lockdep_init_map+0x9/0x10 [ 25.624854] ? debug_object_destroy+0x2b0/0x2b0 [ 25.629505] ? __wait_rcu_gp+0x230/0x340 [ 25.633550] ? synchronize_sched.part.64+0xac/0x100 [ 25.638536] ? synchronize_sched_expedited+0xf0/0xf0 [ 25.643609] ? call_rcu_bh+0x20/0x20 [ 25.647298] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 25.653156] ? put_pid+0x183/0x1f0 [ 25.656677] ? task_active_pid_ns+0xd0/0xd0 [ 25.660973] ? __might_sleep+0x95/0x190 [ 25.664928] kvm_vcpu_ioctl+0x64c/0x1010 [ 25.668965] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 25.673175] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 25.679035] ? __fget+0x333/0x570 [ 25.682461] ? lock_downgrade+0x980/0x980 [ 25.686587] ? lock_release+0xa40/0xa40 [ 25.690537] ? __lock_is_held+0xb6/0x140 [ 25.694583] ? __fget+0x35c/0x570 [ 25.698024] ? iterate_fd+0x3f0/0x3f0 [ 25.701815] ? iterate_fd+0x3f0/0x3f0 [ 25.705585] ? vm_mmap_pgoff+0x1fc/0x280 [ 25.709619] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 25.714524] ? selinux_file_ioctl+0x444/0x690 [ 25.718997] ? __fget_light+0x297/0x380 [ 25.722959] kvm_vcpu_compat_ioctl+0x364/0x450 [ 25.727509] ? kmem_cache_free+0x267/0x2a0 [ 25.731726] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 25.736025] ? compat_SyS_futex+0x288/0x380 [ 25.740322] ? security_file_ioctl+0x7d/0xb0 [ 25.744710] ? security_file_ioctl+0x89/0xb0 [ 25.749099] compat_SyS_ioctl+0x151/0x2a30 [ 25.753306] ? do_fast_syscall_32+0x156/0xf9d [ 25.757773] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 25.762065] ? do_ioctl+0x60/0x60 [ 25.765492] do_fast_syscall_32+0x3ee/0xf9d [ 25.769797] ? do_int80_syscall_32+0x9d0/0x9d0 [ 25.774361] ? syscall_return_slowpath+0x2ad/0x550 [ 25.779262] ? prepare_exit_to_usermode+0x340/0x340 [ 25.784251] ? sysret32_from_system_call+0x5/0x3b [ 25.789069] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.793889] entry_SYSENTER_compat+0x54/0x63 [ 25.798271] RIP: 0023:0xf7f38c79 [ 25.801605] RSP: 002b:00000000f7ecf1ec EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 25.809283] RAX: ffffffffffffffda RBX: 0000000000000042 RCX: 000000000000ae80 [ 25.816534] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.823775] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 25.831018] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 25.838259] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 25.846191] Dumping ftrace buffer: [ 25.849798] (ftrace buffer empty) [ 25.853476] Kernel Offset: disabled [ 25.857075] Rebooting in 86400 seconds..