[ 65.818164][ T27] audit: type=1800 audit(1584613835.546:24): pid=9606 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 66.422345][ T27] audit: type=1800 audit(1584613836.276:25): pid=9606 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 66.442054][ T27] audit: type=1800 audit(1584613836.286:26): pid=9606 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts. 2020/03/19 10:30:47 parsed 1 programs 2020/03/19 10:30:49 executed programs: 0 syzkaller login: [ 79.361439][ T9778] IPVS: ftp: loaded support on port[0] = 21 [ 79.423842][ T9778] chnl_net:caif_netlink_parms(): no params data found [ 79.464936][ T9778] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.472411][ T9778] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.480486][ T9778] device bridge_slave_0 entered promiscuous mode [ 79.490227][ T9778] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.497407][ T9778] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.505044][ T9778] device bridge_slave_1 entered promiscuous mode [ 79.523760][ T9778] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.534615][ T9778] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.554941][ T9778] team0: Port device team_slave_0 added [ 79.562288][ T9778] team0: Port device team_slave_1 added [ 79.577675][ T9778] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.584646][ T9778] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 79.610821][ T9778] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.623550][ T9778] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.630595][ T9778] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 79.656497][ T9778] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.719331][ T9778] device hsr_slave_0 entered promiscuous mode [ 79.787512][ T9778] device hsr_slave_1 entered promiscuous mode [ 79.896894][ T9778] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.959758][ T9778] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.010326][ T9778] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.079465][ T9778] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.132976][ T9778] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.140176][ T9778] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.148041][ T9778] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.155113][ T9778] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.201954][ T9778] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.215383][ T2849] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.226306][ T2849] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.235057][ T2849] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.243294][ T2849] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 80.256248][ T9778] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.268117][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.276540][ T3844] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.283693][ T3844] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.308446][ T2849] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.316894][ T2849] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.324059][ T2849] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.332197][ T2849] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.340982][ T2849] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.350278][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.361459][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.376027][ T9778] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 80.390004][ T9778] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.399028][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.419025][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.426386][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.441246][ T9778] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.460556][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.470195][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.488444][ T2788] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.496923][ T2788] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.506779][ T2788] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.515328][ T2788] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.525257][ T9778] device veth0_vlan entered promiscuous mode [ 80.537333][ T9778] device veth1_vlan entered promiscuous mode [ 80.559116][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.567871][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.576012][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.584947][ T3844] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.596691][ T9778] device veth0_macvtap entered promiscuous mode [ 80.608202][ T9778] device veth1_macvtap entered promiscuous mode [ 80.625166][ T9778] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.632938][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.641607][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.649720][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.658484][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.671341][ T9778] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.681852][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.690769][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.989810][ T9786] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 81.908690][ T9833] ------------[ cut here ]------------ [ 81.914253][ T9833] WARNING: CPU: 0 PID: 9833 at arch/x86/kvm/x86.c:2447 vcpu_enter_guest+0x3cf3/0x6120 [ 81.923777][ T9833] Kernel panic - not syncing: panic_on_warn set ... [ 81.930352][ T9833] CPU: 0 PID: 9833 Comm: syz-executor.0 Not tainted 5.6.0-rc6-syzkaller #0 [ 81.938910][ T9833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.948956][ T9833] Call Trace: [ 81.952262][ T9833] dump_stack+0x188/0x20d [ 81.956577][ T9833] ? vcpu_enter_guest+0x3c60/0x6120 [ 81.961765][ T9833] panic+0x2e3/0x75c [ 81.965677][ T9833] ? add_taint.cold+0x16/0x16 [ 81.970341][ T9833] ? printk+0xba/0xed [ 81.974303][ T9833] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 81.979744][ T9833] ? __warn.cold+0x14/0x35 [ 81.984176][ T9833] ? __warn+0xd5/0x1c8 [ 81.988267][ T9833] ? vcpu_enter_guest+0x3cf3/0x6120 [ 81.993461][ T9833] __warn.cold+0x2f/0x35 [ 81.997718][ T9833] ? vcpu_enter_guest+0x3cf3/0x6120 [ 82.002898][ T9833] report_bug+0x27b/0x2f0 [ 82.007224][ T9833] do_error_trap+0x12b/0x220 [ 82.011807][ T9833] ? vcpu_enter_guest+0x3cf3/0x6120 [ 82.017040][ T9833] do_invalid_op+0x32/0x40 [ 82.021458][ T9833] ? vcpu_enter_guest+0x3cf3/0x6120 [ 82.026638][ T9833] invalid_op+0x23/0x30 [ 82.030786][ T9833] RIP: 0010:vcpu_enter_guest+0x3cf3/0x6120 [ 82.036591][ T9833] Code: f3 7e 0f 94 c3 31 ff 89 de e8 d9 03 64 00 84 db 0f 84 62 ea ff ff e8 9c 02 64 00 e8 fb 43 f2 ff e9 53 ea ff ff e8 8d 02 64 00 <0f> 0b e9 e7 dc ff ff e8 81 02 64 00 bf 00 94 35 77 45 31 e4 4c 69 [ 82.056177][ T9833] RSP: 0018:ffffc900024afb50 EFLAGS: 00010293 [ 82.062316][ T9833] RAX: ffff888097b88040 RBX: fffffffffffff8d2 RCX: ffffffff810dff78 [ 82.070307][ T9833] RDX: 0000000000000000 RSI: ffffffff810e2293 RDI: 0000000000000007 [ 82.078259][ T9833] RBP: ffffc900024afcc0 R08: ffff888097b88040 R09: fffffbfff180e58f [ 82.086252][ T9833] R10: fffffbfff180e58e R11: ffffffff8c072c77 R12: 0000000000000000 [ 82.094209][ T9833] R13: ffffc90002521000 R14: ffff88808e620378 R15: ffff88808e620340 [ 82.102221][ T9833] ? vcpu_enter_guest+0x19d8/0x6120 [ 82.107409][ T9833] ? vcpu_enter_guest+0x3cf3/0x6120 [ 82.112697][ T9833] ? kvm_vcpu_reload_apic_access_page+0x370/0x370 [ 82.119119][ T9833] ? lock_acquire+0x197/0x420 [ 82.123784][ T9833] ? kvm_check_async_pf_completion+0x2a4/0x400 [ 82.129926][ T9833] ? kvm_arch_vcpu_ioctl_run+0x41c/0x1790 [ 82.135629][ T9833] kvm_arch_vcpu_ioctl_run+0x41c/0x1790 [ 82.141162][ T9833] kvm_vcpu_ioctl+0x493/0xe60 [ 82.145823][ T9833] ? kvm_set_memory_region+0x40/0x40 [ 82.151091][ T9833] ? ioctl_file_clone+0x180/0x180 [ 82.156100][ T9833] ? __fget_files+0x329/0x4f0 [ 82.160763][ T9833] ? ksys_dup3+0x3c0/0x3c0 [ 82.165177][ T9833] ? __x64_sys_futex+0x380/0x4f0 [ 82.170149][ T9833] ? kvm_set_memory_region+0x40/0x40 [ 82.175425][ T9833] ksys_ioctl+0x11a/0x180 [ 82.179742][ T9833] __x64_sys_ioctl+0x6f/0xb0 [ 82.184311][ T9833] ? lockdep_hardirqs_on+0x417/0x5d0 [ 82.189580][ T9833] do_syscall_64+0xf6/0x7d0 [ 82.194070][ T9833] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.199941][ T9833] RIP: 0033:0x45c849 [ 82.203814][ T9833] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 82.223401][ T9833] RSP: 002b:00007f5029f2ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 82.231804][ T9833] RAX: ffffffffffffffda RBX: 00007f5029f2f6d4 RCX: 000000000045c849 [ 82.239752][ T9833] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 82.247702][ T9833] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 82.255649][ T9833] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 82.263597][ T9833] R13: 00000000000003be R14: 00000000004c647e R15: 000000000076bf0c [ 82.272796][ T9833] Kernel Offset: disabled [ 82.277195][ T9833] Rebooting in 86400 seconds..