[....] Starting enhanced syslogd: rsyslogd[ 11.582259] audit: type=1400 audit(1514602521.892:5): avc: denied { syslog } for pid=3043 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 17.325559] audit: type=1400 audit(1514602527.635:6): avc: denied { map } for pid=3182 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 '10.128.15.219' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.525858] audit: type=1400 audit(1514602533.835:7): avc: denied { map } for pid=3196 comm="syzkaller289579" path="/root/syzkaller289579707" 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 executing program executing program executing program executing program executing program executing program executing program executing program [ 23.562212] 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 [ 24.107067] WARNING: CPU: 1 PID: 3223 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 24.116496] Kernel panic - not syncing: panic_on_warn set ... [ 24.116496] [ 24.123838] CPU: 1 PID: 3223 Comm: syzkaller289579 Not tainted 4.15.0-rc5+ #151 [ 24.131269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.140589] Call Trace: [ 24.143147] dump_stack+0x194/0x257 [ 24.146744] ? arch_local_irq_restore+0x53/0x53 [ 24.151386] ? vsnprintf+0x1ed/0x1900 [ 24.155158] panic+0x1e4/0x41c [ 24.158319] ? refcount_error_report+0x214/0x214 [ 24.163042] ? show_regs_print_info+0x18/0x18 [ 24.167510] ? __warn+0x1c1/0x200 [ 24.170934] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 24.175925] __warn+0x1dc/0x200 [ 24.179171] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 24.184157] report_bug+0x211/0x2d0 [ 24.187757] fixup_bug.part.11+0x37/0x80 [ 24.191786] do_error_trap+0x2d7/0x3e0 [ 24.195639] ? check_noncircular+0x20/0x20 [ 24.199841] ? trace_hardirqs_on+0xd/0x10 [ 24.203958] ? math_error+0x400/0x400 [ 24.207727] ? __lock_is_held+0xb6/0x140 [ 24.211767] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.216583] do_invalid_op+0x1b/0x20 [ 24.220265] invalid_op+0x22/0x40 [ 24.223684] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 24.229273] RSP: 0018:ffff8801c89a7580 EFLAGS: 00010293 [ 24.234604] RAX: ffff8801c88de240 RBX: ffff8801c438f000 RCX: ffffffff810deeef [ 24.241849] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801caea1d20 [ 24.249087] RBP: ffff8801c89a7910 R08: 1ffff10039134e93 R09: 0000000000000001 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.256336] R10: ffff8801c89a7930 R11: 0000000000000000 R12: 0000000000000000 [ 24.263575] R13: 1ffff10039134f4d R14: ffff8801d88a3300 R15: ffff8801caea1b00 [ 24.270824] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 24.275817] ? mark_held_locks+0xaf/0x100 [ 24.279947] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.285023] ? trace_hardirqs_on+0xd/0x10 [ 24.289143] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 24.293954] ? debug_stats_show+0xd0/0xd0 [ 24.298065] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.303150] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.308147] ? debug_object_free+0x2f1/0x5a0 [ 24.312520] ? lockdep_init_map+0x9/0x10 [ 24.316551] ? debug_object_destroy+0x2b0/0x2b0 [ 24.321198] ? __wait_rcu_gp+0x230/0x340 [ 24.325239] ? synchronize_sched.part.64+0xac/0x100 [ 24.330231] ? synchronize_sched_expedited+0xf0/0xf0 [ 24.335301] ? call_rcu_bh+0x20/0x20 [ 24.338988] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.344841] ? put_pid+0x183/0x1f0 [ 24.348350] ? task_active_pid_ns+0xd0/0xd0 [ 24.352642] ? __might_sleep+0x95/0x190 [ 24.356602] kvm_vcpu_ioctl+0x64c/0x1010 [ 24.360630] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 24.364834] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 24.370697] ? __fget+0x333/0x570 [ 24.374120] ? lock_downgrade+0x980/0x980 [ 24.378239] ? lock_release+0xa40/0xa40 [ 24.382184] ? __lock_is_held+0xb6/0x140 [ 24.386223] ? __fget+0x35c/0x570 [ 24.389658] ? iterate_fd+0x3f0/0x3f0 [ 24.393435] ? handle_mm_fault+0x248/0x8d0 [ 24.397645] ? find_held_lock+0x35/0x1d0 [ 24.401681] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 24.406579] ? selinux_file_ioctl+0x444/0x690 [ 24.411039] ? __fget_light+0x297/0x380 [ 24.414986] kvm_vcpu_compat_ioctl+0x364/0x450 [ 24.419537] ? memset+0x31/0x40 [ 24.422784] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 24.427084] ? compat_SyS_futex+0x288/0x380 [ 24.431381] ? security_file_ioctl+0x7d/0xb0 [ 24.435755] ? security_file_ioctl+0x89/0xb0 [ 24.440134] compat_SyS_ioctl+0x151/0x2a30 [ 24.444336] ? do_fast_syscall_32+0x156/0xf9d [ 24.448806] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 24.453108] ? do_ioctl+0x60/0x60 [ 24.456529] do_fast_syscall_32+0x3ee/0xf9d [ 24.460824] ? do_int80_syscall_32+0x9d0/0x9d0 [ 24.465381] ? syscall_return_slowpath+0x2ad/0x550 [ 24.470276] ? prepare_exit_to_usermode+0x340/0x340 [ 24.475269] ? sysret32_from_system_call+0x5/0x3b [ 24.480084] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.484898] entry_SYSENTER_compat+0x54/0x63 [ 24.489281] RIP: 0023:0xf7f6cc79 [ 24.492611] RSP: 002b:00000000f7f251fc EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 24.500300] RAX: ffffffffffffffda RBX: 0000000000000031 RCX: 000000000000ae80 [ 24.507546] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.514781] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 24.522027] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.529273] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.536688] Dumping ftrace buffer: [ 24.540240] (ftrace buffer empty) [ 24.543917] Kernel Offset: disabled [ 24.547512] Rebooting in 86400 seconds..