[....] Starting enhanced syslogd: rsyslogd[ 11.502006] audit: type=1400 audit(1514656292.665:5): avc: denied { syslog } for pid=3038 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: [ 18.332619] audit: type=1400 audit(1514656299.496:6): avc: denied { map } for pid=3178 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 '10.128.0.44' (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 [ 24.507077] audit: type=1400 audit(1514656305.670:7): avc: denied { map } for pid=3192 comm="syzkaller045646" path="/root/syzkaller045646944" 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 [ 24.545401] 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 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 30.050462] WARNING: CPU: 0 PID: 3227 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 30.059905] Kernel panic - not syncing: panic_on_warn set ... [ 30.059905] [ 30.067238] CPU: 0 PID: 3227 Comm: syzkaller045646 Not tainted 4.15.0-rc5+ #242 [ 30.074658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.083977] Call Trace: [ 30.086536] dump_stack+0x194/0x257 [ 30.090138] ? arch_local_irq_restore+0x53/0x53 [ 30.094783] ? vsnprintf+0x1ed/0x1900 [ 30.098556] panic+0x1e4/0x41c [ 30.101720] ? refcount_error_report+0x214/0x214 [ 30.106443] ? show_regs_print_info+0x18/0x18 [ 30.110913] ? __warn+0x1c1/0x200 [ 30.114342] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 30.119326] __warn+0x1dc/0x200 [ 30.122575] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 30.127565] report_bug+0x211/0x2d0 [ 30.131168] fixup_bug.part.11+0x37/0x80 [ 30.135200] do_error_trap+0x2d7/0x3e0 [ 30.139058] ? trace_hardirqs_on+0xd/0x10 [ 30.143178] ? math_error+0x400/0x400 [ 30.146951] ? __lock_is_held+0xb6/0x140 [ 30.150990] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.155808] do_invalid_op+0x1b/0x20 [ 30.159492] invalid_op+0x22/0x40 [ 30.162915] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 30.168502] RSP: 0018:ffff8801c589f6b0 EFLAGS: 00010293 [ 30.173832] RAX: ffff8801c6b381c0 RBX: ffff8801c0654000 RCX: ffffffff810df1cf [ 30.181723] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c04495e0 [ 30.188964] RBP: ffff8801c589fa40 R08: 1ffff10038b13eb8 R09: 0000000000000001 [ 30.196203] R10: ffff8801c589fa58 R11: 0000000000000000 R12: 0000000000000000 [ 30.203439] R13: 1ffff10038b13f72 R14: ffff8801ca4eed80 R15: ffff8801c04493c0 [ 30.210695] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 30.215688] ? mark_held_locks+0xaf/0x100 [ 30.219805] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 30.224880] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.229864] ? trace_hardirqs_on+0xd/0x10 [ 30.233989] ? free_object+0x150/0x230 [ 30.237847] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 30.242656] ? debug_stats_show+0xd0/0xd0 [ 30.246770] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 30.251844] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.256834] ? debug_object_free+0x2f1/0x5a0 [ 30.261209] ? lockdep_init_map+0x9/0x10 [ 30.265242] ? debug_object_destroy+0x2b0/0x2b0 [ 30.269889] ? __wait_rcu_gp+0x230/0x340 [ 30.273932] ? synchronize_sched.part.64+0xac/0x100 [ 30.278916] ? synchronize_sched_expedited+0xf0/0xf0 [ 30.283987] ? call_rcu_bh+0x20/0x20 [ 30.287675] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.293528] ? put_pid+0x183/0x1f0 [ 30.297041] ? task_active_pid_ns+0xd0/0xd0 [ 30.301334] ? __might_sleep+0x95/0x190 [ 30.305285] kvm_vcpu_ioctl+0x64c/0x1010 [ 30.309313] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 30.313520] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 30.319385] ? find_held_lock+0x35/0x1d0 [ 30.323423] ? __fget+0x333/0x570 [ 30.326846] ? lock_downgrade+0x980/0x980 [ 30.330968] ? lock_release+0xa40/0xa40 [ 30.334913] ? __lock_is_held+0xb6/0x140 [ 30.338958] ? __fget+0x35c/0x570 [ 30.342392] ? iterate_fd+0x3f0/0x3f0 [ 30.346161] ? lock_release+0xa40/0xa40 [ 30.350105] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.355962] ? __getnstimeofday64+0x143/0x470 [ 30.360428] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 30.366281] do_vfs_ioctl+0x1b1/0x1520 [ 30.370145] ? ioctl_preallocate+0x2b0/0x2b0 [ 30.374528] ? selinux_capable+0x40/0x40 [ 30.378564] ? SyS_futex+0x269/0x390 [ 30.382259] ? security_file_ioctl+0x89/0xb0 [ 30.386642] SyS_ioctl+0x8f/0xc0 [ 30.389982] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 30.394706] RIP: 0033:0x445a19 [ 30.397864] RSP: 002b:00007fc8a9880da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 30.405539] RAX: ffffffffffffffda RBX: 00000000006dac6c RCX: 0000000000445a19 [ 30.412775] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 00000000000001f7 [ 30.420017] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.427256] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac68 [ 30.434494] R13: 6d766b2f7665642f R14: 00007fc8a98819c0 R15: 0000000000000009 [ 30.442332] Dumping ftrace buffer: [ 30.445902] (ftrace buffer empty) [ 30.449584] Kernel Offset: disabled [ 30.453180] Rebooting in 86400 seconds..