[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 11.993413] audit: type=1400 audit(1514698486.363:6): avc: denied { map } for pid=3142 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.220' (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 executing program executing program executing program executing program syzkaller login: [ 36.534654] audit: type=1400 audit(1514698510.904:7): avc: denied { map } for pid=3161 comm="syzkaller080804" path="/root/syzkaller080804523" 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 [ 36.573122] 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 [ 37.165119] WARNING: CPU: 1 PID: 3192 at arch/x86/kvm/x86.c:7377 kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 37.174510] Kernel panic - not syncing: panic_on_warn set ... [ 37.174510] [ 37.181838] CPU: 1 PID: 3192 Comm: syzkaller080804 Not tainted 4.15.0-rc4-mm1+ #49 [ 37.189507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.198825] Call Trace: [ 37.201384] dump_stack+0x194/0x257 [ 37.204981] ? arch_local_irq_restore+0x53/0x53 [ 37.209620] ? vsnprintf+0x1ed/0x1900 [ 37.213394] panic+0x1e4/0x41c [ 37.216552] ? refcount_error_report+0x214/0x214 [ 37.221275] ? show_regs_print_info+0x18/0x18 [ 37.225742] ? __warn+0x1c1/0x200 [ 37.229165] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 37.234146] __warn+0x1dc/0x200 [ 37.237393] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 37.242757] report_bug+0x211/0x2d0 [ 37.246364] fixup_bug.part.11+0x37/0x80 [ 37.250394] do_error_trap+0x2d7/0x3e0 [ 37.254254] ? trace_hardirqs_on+0xd/0x10 [ 37.258374] ? math_error+0x400/0x400 [ 37.262143] ? __lock_is_held+0xb6/0x140 [ 37.266181] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.270993] do_invalid_op+0x1b/0x20 [ 37.274673] invalid_op+0x22/0x40 [ 37.278091] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 37.283680] RSP: 0018:ffff8801c69976b0 EFLAGS: 00010293 [ 37.289009] RAX: ffff8801c68a0740 RBX: ffff8801c2eb9000 RCX: ffffffff810df6bf [ 37.296244] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c2618320 [ 37.303480] RBP: ffff8801c6997a40 R08: 1ffff100384c3afb R09: 0000000000000001 [ 37.310716] R10: ffff8801c6997690 R11: 0000000000000000 R12: 0000000000000000 [ 37.317951] R13: ffff8801d8ee8500 R14: ffff8801c2618100 R15: ffff8801c2618100 [ 37.325197] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 37.330188] ? mark_held_locks+0xaf/0x100 [ 37.334303] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 37.339374] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.344357] ? trace_hardirqs_on+0xd/0x10 [ 37.348475] ? free_object+0x150/0x230 [ 37.352328] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 37.357135] ? debug_stats_show+0xd0/0xd0 [ 37.361246] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 37.366317] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.371305] ? debug_object_free+0x2f1/0x5a0 [ 37.375677] ? lockdep_init_map+0x9/0x10 [ 37.379705] ? debug_object_destroy+0x2b0/0x2b0 [ 37.384358] ? __wait_rcu_gp+0x230/0x340 [ 37.388394] ? synchronize_sched.part.65+0xac/0x100 [ 37.393376] ? synchronize_sched_expedited+0xf0/0xf0 [ 37.398444] ? call_rcu_bh+0x20/0x20 [ 37.402125] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.407976] ? put_pid+0x183/0x1f0 [ 37.411490] ? task_active_pid_ns+0xd0/0xd0 [ 37.415781] ? __might_sleep+0x95/0x190 [ 37.419727] kvm_vcpu_ioctl+0x6f1/0xff0 [ 37.423666] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 37.427788] ? kvm_vcpu_fault+0x520/0x520 [ 37.431915] ? find_held_lock+0x35/0x1d0 [ 37.435949] ? __fget+0x333/0x570 [ 37.439367] ? lock_downgrade+0x980/0x980 [ 37.443484] ? lock_release+0xa40/0xa40 [ 37.447425] ? __lock_is_held+0xb6/0x140 [ 37.451463] ? __fget+0x35c/0x570 [ 37.454888] ? iterate_fd+0x3f0/0x3f0 [ 37.458661] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 37.463387] ? retint_kernel+0x10/0x10 [ 37.467243] ? kvm_vcpu_fault+0x520/0x520 [ 37.471356] do_vfs_ioctl+0x1b1/0x1520 [ 37.475216] ? ioctl_preallocate+0x2b0/0x2b0 [ 37.479593] ? selinux_capable+0x40/0x40 [ 37.483625] ? SyS_futex+0x269/0x390 [ 37.487316] ? security_file_ioctl+0x89/0xb0 [ 37.491696] SyS_ioctl+0x8f/0xc0 [ 37.495031] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 37.499751] RIP: 0033:0x445a19 [ 37.502907] RSP: 002b:00007fcd9fadbda8 EFLAGS: 00000297 ORIG_RAX: 0000000000000010 [ 37.510581] RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 0000000000445a19 [ 37.517816] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000003d [ 37.525050] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 37.532285] R10: 0000000000000000 R11: 0000000000000297 R12: 00000000006dac50 [ 37.539522] R13: 6d766b2f7665642f R14: 00007fcd9fadc9c0 R15: 0000000000000009 [ 37.546932] Dumping ftrace buffer: [ 37.550511] (ftrace buffer empty) [ 37.554189] Kernel Offset: disabled [ 37.557784] Rebooting in 86400 seconds..