[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 26.297862] kauditd_printk_skb: 7 callbacks suppressed [ 26.297873] audit: type=1800 audit(1539415353.546:29): pid=5197 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 26.323519] audit: type=1800 audit(1539415353.546:30): pid=5197 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. 2018/10/13 07:22:55 parsed 1 programs 2018/10/13 07:22:56 executed programs: 0 syzkaller login: [ 49.227086] IPVS: ftp: loaded support on port[0] = 21 [ 49.475736] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.482577] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.489859] device bridge_slave_0 entered promiscuous mode [ 49.509968] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.516650] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.523617] device bridge_slave_1 entered promiscuous mode [ 49.541563] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.559955] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.611444] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.632227] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.706984] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.714406] team0: Port device team_slave_0 added [ 49.732091] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.739234] team0: Port device team_slave_1 added [ 49.756849] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.776347] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.796264] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.818918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.967870] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.974433] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.981538] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.988007] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.510934] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.564371] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.617188] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.623347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.631780] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.676478] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.990119] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details. [ 51.136073] ------------[ cut here ]------------ [ 51.141013] kernel BUG at arch/x86/kvm/x86.c:353! [ 51.145869] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 51.151217] CPU: 0 PID: 5332 Comm: udevd Not tainted 4.19.0-rc7+ #281 [ 51.157782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.167138] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 51.171971] Code: 45 10 50 e8 a9 48 7c 00 58 5a 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 57 07 73 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 89 fd 41 54 [ 51.190874] RSP: 0018:ffff8801dae07bd8 EFLAGS: 00010006 [ 51.196230] RAX: ffff8801c7460100 RBX: 1ffff1003b5c0f7f RCX: ffffffff81385bcc [ 51.203489] RDX: 0000000000010000 RSI: ffffffff810bd1f9 RDI: ffff8801dae07c18 [ 51.210793] RBP: ffff8801dae07bd8 R08: ffff8801c7460100 R09: ffffed003b5c5ba0 [ 51.218204] R10: ffffed003b5c5ba0 R11: ffff8801dae2dd07 R12: ffff8801dae07c58 [ 51.225510] R13: dffffc0000000000 R14: ffff8801d8117000 R15: ffff8801dae07c18 [ 51.232787] FS: 00007fe69935e7a0(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 51.241023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.246890] CR2: ffff8801dae07c18 CR3: 00000001c02ca000 CR4: 00000000001426f0 [ 51.254198] Call Trace: [ 51.256775] [ 51.258924] kvm_fastop_exception+0x50b/0x5455 [ 51.263493] ? vmcs_clear+0x94/0x100 [ 51.267190] ? trace_hardirqs_on+0x310/0x310 [ 51.271581] ? vmx_set_cr3+0x7a0/0x7a0 [ 51.275489] __loaded_vmcs_clear+0x2d6/0x690 [ 51.280287] ? check_preemption_disabled+0x48/0x200 [ 51.285328] ? vmx_set_virtual_apic_mode+0x790/0x790 [ 51.290435] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.295968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.301498] ? check_preemption_disabled+0x48/0x200 [ 51.306508] ? vmx_set_virtual_apic_mode+0x790/0x790 [ 51.311611] flush_smp_call_function_queue+0x1d2/0x640 [ 51.316894] ? smp_call_function_any+0x1c0/0x1c0 [ 51.321644] ? __lock_is_held+0xb5/0x140 [ 51.325716] generic_smp_call_function_single_interrupt+0x13/0x2b [ 51.331991] smp_call_function_single_interrupt+0x12f/0x650 [ 51.337715] ? smp_call_function_interrupt+0x650/0x650 [ 51.342986] ? interrupt_entry+0xb5/0xf0 [ 51.347107] ? trace_hardirqs_off_caller+0xbb/0x310 [ 51.352122] ? trace_hardirqs_off_caller+0xbb/0x310 [ 51.357127] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.361959] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.366969] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.371978] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.377510] ? check_preemption_disabled+0x48/0x200 [ 51.382517] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.388168] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.393005] call_function_single_interrupt+0xf/0x20 [ 51.398095] [ 51.400325] RIP: 0010:__sanitizer_cov_trace_pc+0x26/0x50 [ 51.405868] Code: 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 65 8b 15 6c 14 83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0 12 00 00 <83> fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 00 00 48 8b 11 48 [ 51.424774] RSP: 0018:ffff8801bc74f6c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04 [ 51.432472] RAX: ffff8801c7460100 RBX: ffff8801ce69cd1e RCX: 0000000000000000 [ 51.439735] RDX: 0000000000000000 RSI: ffffffff87ad35bb RDI: ffff8801ce69cd1f [ 51.446994] RBP: ffff8801bc74f6c8 R08: ffffed0039cd39a4 R09: ffffed0039cd39a3 [ 51.454253] R10: ffffed0039cd39a3 R11: ffff8801ce69cd1e R12: ffffffff8859abc2 [ 51.461616] R13: 000000007ffffff4 R14: ffffffff8859abc3 R15: ffff8801bc74f780 [ 51.468891] ? vsnprintf+0x52b/0x1b60 [ 51.472691] vsnprintf+0x52b/0x1b60 [ 51.476326] ? pointer+0x990/0x990 [ 51.479857] ? __lock_is_held+0xb5/0x140 [ 51.483910] sprintf+0xb0/0xe0 [ 51.487087] ? scnprintf+0x130/0x130 [ 51.490791] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.495837] ? lock_release+0x970/0x970 [ 51.499820] ? uevent_show+0x2ba/0x380 [ 51.503696] uevent_show+0x294/0x380 [ 51.507403] ? device_create_with_groups+0x110/0x110 [ 51.512583] dev_attr_show+0x56/0xa0 [ 51.516295] ? device_remove_bin_file+0x40/0x40 [ 51.520954] sysfs_kf_seq_show+0x201/0x410 [ 51.525280] kernfs_seq_show+0x1f6/0x2c0 [ 51.529404] ? kernfs_vma_open+0x1d0/0x1d0 [ 51.533640] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.539163] ? kernfs_ops+0xa2/0x110 [ 51.542863] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.548386] seq_read+0x4af/0x1150 [ 51.551968] ? lock_downgrade+0x900/0x900 [ 51.556206] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 51.561315] kernfs_fop_read+0x146/0x6a0 [ 51.565369] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.570904] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 51.575824] ? userfaultfd_unmap_prep+0x660/0x660 [ 51.580661] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.586188] ? do_mmap+0x6a8/0x1220 [ 51.589805] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.595335] __vfs_read+0x117/0x9b0 [ 51.599055] ? kernfs_vma_page_mkwrite+0x230/0x230 [ 51.603976] ? vfs_copy_file_range+0xb90/0xb90 [ 51.608547] ? fsnotify+0x12f0/0x12f0 [ 51.612345] ? security_file_permission+0x1c2/0x230 [ 51.617354] ? rw_verify_area+0x118/0x360 [ 51.621496] vfs_read+0x17f/0x3c0 [ 51.624939] ksys_read+0x101/0x260 [ 51.628473] ? kernel_write+0x120/0x120 [ 51.632543] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 51.637984] __x64_sys_read+0x73/0xb0 [ 51.641775] do_syscall_64+0x1b9/0x820 [ 51.645692] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.651059] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.655981] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.660815] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.665827] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.670831] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.675860] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.680693] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.685891] RIP: 0033:0x7fe698a66310 [ 51.689614] Code: 73 01 c3 48 8b 0d 28 4b 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d e5 a2 2b 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 6e 8a 01 00 48 89 04 24 [ 51.708529] RSP: 002b:00007ffd5866f068 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 51.716238] RAX: ffffffffffffffda RBX: 0000000001be9450 RCX: 00007fe698a66310 [ 51.723503] RDX: 0000000000001000 RSI: 00007fe699365000 RDI: 0000000000000005 [ 51.730770] RBP: 0000000000003fff R08: 00000000ffffffff R09: 0000000000000000 [ 51.738036] R10: 0000000000000022 R11: 0000000000000246 R12: 000000000000000a [ 51.745304] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd5866f540 [ 51.752577] Modules linked in: [ 51.755780] ---[ end trace c5bccc488d84f763 ]--- [ 51.760537] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 51.765381] Code: 45 10 50 e8 a9 48 7c 00 58 5a 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 57 07 73 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 89 fd 41 54 [ 51.784280] RSP: 0018:ffff8801dae07bd8 EFLAGS: 00010006 [ 51.789643] RAX: ffff8801c7460100 RBX: 1ffff1003b5c0f7f RCX: ffffffff81385bcc [ 51.797081] RDX: 0000000000010000 RSI: ffffffff810bd1f9 RDI: ffff8801dae07c18 [ 51.804352] RBP: ffff8801dae07bd8 R08: ffff8801c7460100 R09: ffffed003b5c5ba0 [ 51.811617] R10: ffffed003b5c5ba0 R11: ffff8801dae2dd07 R12: ffff8801dae07c58 [ 51.818886] R13: dffffc0000000000 R14: ffff8801d8117000 R15: ffff8801dae07c18 [ 51.826157] FS: 00007fe69935e7a0(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 51.834376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.840252] CR2: ffff8801dae07c18 CR3: 00000001c02ca000 CR4: 00000000001426f0 [ 51.847524] Kernel panic - not syncing: Fatal exception in interrupt [ 51.854784] Kernel Offset: disabled [ 51.858405] Rebooting in 86400 seconds..