[....] Starting enhanced syslogd: rsyslogd[ 10.738134] audit: type=1400 audit(1514143484.334:5): avc: denied { syslog } for pid=2987 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: [ 16.797155] audit: type=1400 audit(1514143490.392:6): avc: denied { map } for pid=3127 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 'ci-upstream-next-kasan-gce-6,10.128.15.239' (ECDSA) to the list of known hosts. net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 [ 47.710669] audit: type=1400 audit(1514143521.306:7): avc: denied { map } for pid=3145 comm="syzkaller574084" path="/root/syzkaller574084001" 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 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 executing program executing program executing program executing program executing program executing program executing program executing program [ 48.297175] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 53.889151] WARNING: CPU: 0 PID: 4775 at arch/x86/kvm/x86.c:7375 kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 53.901192] Kernel panic - not syncing: panic_on_warn set ... [ 53.901192] [ 53.909505] CPU: 0 PID: 4775 Comm: syzkaller574084 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 53.918052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.927376] Call Trace: [ 53.929956] dump_stack+0x194/0x257 [ 53.933557] ? arch_local_irq_restore+0x53/0x53 [ 53.938204] ? vsnprintf+0x1ed/0x1900 [ 53.941981] panic+0x1e4/0x41c [ 53.945144] ? refcount_error_report+0x214/0x214 [ 53.949875] ? show_regs_print_info+0x18/0x18 [ 53.955046] ? __warn+0x1c1/0x200 [ 53.958477] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 53.963475] __warn+0x1dc/0x200 [ 53.966733] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 53.971725] report_bug+0x211/0x2d0 [ 53.975331] fixup_bug.part.11+0x37/0x80 [ 53.979364] do_error_trap+0x2d7/0x3e0 [ 53.984442] ? trace_hardirqs_on+0xd/0x10 [ 53.989276] ? math_error+0x400/0x400 [ 53.993050] ? __lock_is_held+0xb6/0x140 [ 53.997092] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.001914] do_invalid_op+0x1b/0x20 [ 54.005599] invalid_op+0x22/0x40 [ 54.009025] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 54.014615] RSP: 0018:ffff8801c6b6f6b0 EFLAGS: 00010293 [ 54.019950] RAX: ffff8801cc07c6c0 RBX: ffff8801c2de3000 RCX: ffffffff810df6b7 [ 54.027189] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d7bc9560 [ 54.034431] RBP: ffff8801c6b6fa40 R08: 1ffff1003af79d43 R09: 0000000000000001 [ 54.041678] R10: ffff8801c6b6f690 R11: 0000000000000000 R12: 0000000000000000 [ 54.048919] R13: ffff8801d949e100 R14: ffff8801d7bc9340 R15: ffff8801d7bc9340 [ 54.056173] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 54.061175] ? mark_held_locks+0xaf/0x100 [ 54.065297] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 54.070376] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.075365] ? trace_hardirqs_on+0xd/0x10 [ 54.079487] ? free_object+0x150/0x230 [ 54.083346] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 54.088158] ? debug_stats_show+0xd0/0xd0 [ 54.092274] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 54.097350] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.102344] ? debug_object_free+0x2f1/0x5a0 [ 54.106722] ? lockdep_init_map+0x9/0x10 [ 54.110756] ? debug_object_destroy+0x2b0/0x2b0 [ 54.115407] ? __wait_rcu_gp+0x230/0x340 [ 54.119449] ? synchronize_sched.part.65+0xac/0x100 [ 54.124437] ? synchronize_sched_expedited+0xf0/0xf0 [ 54.129511] ? call_rcu_bh+0x20/0x20 [ 54.133200] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 54.140359] ? put_pid+0x183/0x1f0 [ 54.143877] ? task_active_pid_ns+0xd0/0xd0 [ 54.148171] ? __might_sleep+0x95/0x190 [ 54.152124] kvm_vcpu_ioctl+0x6f1/0xff0 [ 54.156080] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 54.160201] ? kvm_vcpu_fault+0x520/0x520 [ 54.164329] ? find_held_lock+0x35/0x1d0 [ 54.168368] ? __fget+0x333/0x570 [ 54.171792] ? lock_downgrade+0x980/0x980 [ 54.175913] ? lock_release+0xa40/0xa40 [ 54.179873] ? __lock_is_held+0xb6/0x140 [ 54.183919] ? __fget+0x35c/0x570 [ 54.187351] ? iterate_fd+0x3f0/0x3f0 [ 54.191131] ? lock_release+0xa40/0xa40 [ 54.195076] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 54.200939] ? __getnstimeofday64+0x143/0x470 [ 54.205409] ? kvm_vcpu_fault+0x520/0x520 [ 54.209528] do_vfs_ioctl+0x1b1/0x1520 [ 54.213393] ? ioctl_preallocate+0x2b0/0x2b0 [ 54.217780] ? selinux_capable+0x40/0x40 [ 54.221819] ? SyS_futex+0x269/0x390 [ 54.225518] ? security_file_ioctl+0x89/0xb0 [ 54.229902] SyS_ioctl+0x8f/0xc0 [ 54.233246] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 54.237970] RIP: 0033:0x44b149 [ 54.241129] RSP: 002b:00007f7343e0dda8 EFLAGS: 00000297 ORIG_RAX: 0000000000000010 [ 54.249603] RAX: ffffffffffffffda RBX: 00000000006ddc3c RCX: 000000000044b149 [ 54.256843] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 54.264086] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 54.271327] R10: 0000000000000000 R11: 0000000000000297 R12: 00000000006ddc38 [ 54.278568] R13: 6d766b2f7665642f R14: 00007f7343e0e9c0 R15: 0000000000000009 [ 54.286441] Dumping ftrace buffer: [ 54.290042] (ftrace buffer empty) [ 54.293726] Kernel Offset: disabled [ 54.297321] Rebooting in 86400 seconds..