[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.245' (ECDSA) to the list of known hosts. 2021/01/30 08:56:02 parsed 1 programs 2021/01/30 08:56:02 executed programs: 0 syzkaller login: [ 1083.810824] IPVS: ftp: loaded support on port[0] = 21 [ 1083.907897] chnl_net:caif_netlink_parms(): no params data found [ 1084.021214] bridge0: port 1(bridge_slave_0) entered blocking state [ 1084.027998] bridge0: port 1(bridge_slave_0) entered disabled state [ 1084.035743] device bridge_slave_0 entered promiscuous mode [ 1084.043995] bridge0: port 2(bridge_slave_1) entered blocking state [ 1084.051498] bridge0: port 2(bridge_slave_1) entered disabled state [ 1084.058420] device bridge_slave_1 entered promiscuous mode [ 1084.075976] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1084.085110] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1084.103134] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1084.110725] team0: Port device team_slave_0 added [ 1084.116174] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1084.123728] team0: Port device team_slave_1 added [ 1084.138752] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1084.145054] 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. [ 1084.171385] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1084.183149] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1084.189388] 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. [ 1084.215235] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1084.226817] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1084.234609] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1084.253762] device hsr_slave_0 entered promiscuous mode [ 1084.259443] device hsr_slave_1 entered promiscuous mode [ 1084.266149] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1084.273536] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1084.338529] bridge0: port 2(bridge_slave_1) entered blocking state [ 1084.344974] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1084.351834] bridge0: port 1(bridge_slave_0) entered blocking state [ 1084.358183] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1084.389682] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1084.395841] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1084.404618] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1084.413484] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1084.422694] bridge0: port 1(bridge_slave_0) entered disabled state [ 1084.429646] bridge0: port 2(bridge_slave_1) entered disabled state [ 1084.437151] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1084.447490] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1084.454444] 8021q: adding VLAN 0 to HW filter on device team0 [ 1084.463336] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1084.472367] bridge0: port 1(bridge_slave_0) entered blocking state [ 1084.478731] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1084.487885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1084.496280] bridge0: port 2(bridge_slave_1) entered blocking state [ 1084.502663] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1084.518205] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1084.525860] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1084.535723] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1084.545632] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1084.556586] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1084.567045] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1084.573730] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1084.581040] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1084.593951] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1084.601659] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1084.608285] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1084.619269] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1084.631479] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1084.641133] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1084.670178] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1084.677158] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1084.684246] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1084.693938] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1084.702908] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1084.709703] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1084.718861] device veth0_vlan entered promiscuous mode [ 1084.727658] device veth1_vlan entered promiscuous mode [ 1084.733809] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1084.742494] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1084.754127] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1084.762994] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1084.771744] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1084.778937] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1084.788891] device veth0_macvtap entered promiscuous mode [ 1084.795555] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1084.804084] device veth1_macvtap entered promiscuous mode [ 1084.813247] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1084.822764] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1084.832940] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1084.839624] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1084.848495] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1084.858277] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1084.865223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1084.973615] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1084.980406] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1084.997656] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 1084.998214] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1085.005824] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1085.018671] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1085.024187] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1085.033055] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1085.057551] gre0: Master is either lo or non-ether device [ 1085.114240] ip_vti0: Master is either lo or non-ether device [ 1085.132038] ip6_vti0: Master is either lo or non-ether device [ 1085.149981] sit0: Master is either lo or non-ether device [ 1085.168516] ip6tnl0: Master is either lo or non-ether device [ 1085.186949] ip6gre0: Master is either lo or non-ether device [ 1085.405022] syz-executor.0 (8371) used greatest stack depth: 23016 bytes left [ 1085.713045] vcan0: Master is either lo or non-ether device [ 1085.840665] Bluetooth: hci0: command 0x0409 tx timeout [ 1085.948747] nlmon0: Master is either lo or non-ether device [ 1086.145559] caif0: Master is either lo or non-ether device [ 1086.293437] vxcan0: Master is either lo or non-ether device [ 1086.475337] vxcan1: Master is either lo or non-ether device [ 1087.400264] xfrm0: Master is either lo or non-ether device 2021/01/30 08:56:07 executed programs: 25 [ 1087.733549] bridge0: port 1(bridge_slave_0) entered disabled state [ 1087.765600] bridge_slave_0: Device is already in use. [ 1087.913972] bridge0: port 1(bridge_slave_0) entered disabled state [ 1087.920777] Bluetooth: hci0: command 0x041b tx timeout [ 1087.927418] device bridge_slave_0 left promiscuous mode [ 1087.932983] bridge0: port 1(bridge_slave_0) entered disabled state [ 1088.223441] bridge0: port 2(bridge_slave_1) entered disabled state [ 1088.249717] bridge_slave_1: Device is already in use. [ 1088.401172] bridge0: port 2(bridge_slave_1) entered disabled state [ 1088.408547] device bridge_slave_1 left promiscuous mode [ 1088.415246] bridge0: port 2(bridge_slave_1) entered disabled state [ 1088.728731] bond_slave_0: Device is already in use. [ 1088.840782] bond0: Releasing backup interface bond_slave_0 [ 1089.162308] bond_slave_1: Device is already in use. [ 1089.280065] bond0: Releasing backup interface bond_slave_1 [ 1089.608259] team_slave_0: Device is already in use. [ 1089.758610] team0: Port device team_slave_0 removed [ 1090.012040] Bluetooth: hci0: command 0x040f tx timeout [ 1090.071130] team_slave_1: Device is already in use. [ 1090.226654] team0: Port device team_slave_1 removed [ 1090.536064] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 1090.564393] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 1090.576636] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 1090.750793] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 1091.049511] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 1091.060752] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 1091.071140] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 1091.213966] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 1091.555223] hsr_slave_0: Device is already in use. [ 1091.703370] device hsr_slave_0 left promiscuous mode [ 1092.032504] hsr_slave_1: Device is already in use. [ 1092.079676] Bluetooth: hci0: command 0x0419 tx timeout [ 1092.187939] device hsr_slave_1 left promiscuous mode 2021/01/30 08:56:12 executed programs: 47 [ 1092.801906] veth1_vlan: Device is already in use. [ 1093.052903] ------------[ cut here ]------------ [ 1093.058381] WARNING: CPU: 1 PID: 8764 at drivers/net/ipvlan/ipvlan_main.c:65 ipvlan_unregister_nf_hook.cold+0x11/0x18 [ 1093.069136] Kernel panic - not syncing: panic_on_warn set ... [ 1093.069136] [ 1093.076504] CPU: 1 PID: 8764 Comm: syz-executor.0 Not tainted 4.19.171-syzkaller #0 [ 1093.084296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1093.093680] Call Trace: [ 1093.096280] dump_stack+0x1fc/0x2ef [ 1093.099919] panic+0x26a/0x50e [ 1093.103114] ? __warn_printk+0xf3/0xf3 [ 1093.107008] ? ipvlan_unregister_nf_hook.cold+0x11/0x18 [ 1093.112376] ? __probe_kernel_read+0x130/0x1b0 [ 1093.116958] ? __warn.cold+0x5/0x5a [ 1093.120591] ? __warn+0xe4/0x200 [ 1093.123962] ? ipvlan_unregister_nf_hook.cold+0x11/0x18 [ 1093.129325] __warn.cold+0x20/0x5a [ 1093.132862] ? io_schedule_timeout+0x140/0x140 [ 1093.137423] ? ipvlan_unregister_nf_hook.cold+0x11/0x18 [ 1093.142798] report_bug+0x262/0x2b0 [ 1093.146408] do_error_trap+0x1d7/0x310 [ 1093.150287] ? math_error+0x310/0x310 [ 1093.154071] ? __irq_work_queue_local+0x101/0x160 [ 1093.158895] ? irq_work_queue+0x29/0x80 [ 1093.162853] ? error_entry+0x72/0xd0 [ 1093.166550] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1093.171549] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1093.176387] invalid_op+0x14/0x20 [ 1093.179832] RIP: 0010:ipvlan_unregister_nf_hook.cold+0x11/0x18 [ 1093.185809] Code: c6 08 0f b7 f6 e8 9a d5 f2 ff e9 82 3d 44 fc 4c 89 e7 e8 8a 4f 9a f9 eb d6 e8 43 99 64 f9 48 c7 c7 20 62 da 88 e8 7a d5 f2 ff <0f> 0b e9 e3 68 44 fc e8 2b 99 64 f9 48 c7 c7 e0 7f da 88 e8 62 d5 [ 1093.204692] RSP: 0018:ffff88809b15eff8 EFLAGS: 00010286 [ 1093.210035] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000 [ 1093.217282] RDX: 0000000000000000 RSI: ffffffff814de171 RDI: ffffed101362bdf1 [ 1093.224529] RBP: ffff888094fa0040 R08: 0000000000000024 R09: 0000000000000000 [ 1093.231784] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880adc9f180 [ 1093.239035] R13: ffff8880b0148dc0 R14: 0000000000000000 R15: 0000000000000001 [ 1093.246298] ? vprintk_func+0x81/0x180 [ 1093.250215] ? ipvlan_unregister_nf_hook.cold+0x11/0x18 [ 1093.255574] ipvlan_set_port_mode+0x53a/0x650 [ 1093.260057] ipvlan_link_new+0x68d/0xc40 [ 1093.264103] ? ipvlan_add_addr+0x320/0x320 [ 1093.268316] rtnl_newlink+0x1027/0x15b0 [ 1093.272281] ? rtnl_getlink+0x620/0x620 [ 1093.276244] ? mark_held_locks+0xf0/0xf0 [ 1093.280311] ? check_preemption_disabled+0x41/0x280 [ 1093.285326] ? deref_stack_reg+0x134/0x1d0 [ 1093.289547] ? mark_held_locks+0xf0/0xf0 [ 1093.293587] ? unwind_next_frame+0x10a9/0x1c60 [ 1093.298158] ? __save_stack_trace+0x72/0x190 [ 1093.302558] ? deref_stack_reg+0x134/0x1d0 [ 1093.306858] ? __lock_acquire+0x6de/0x3ff0 [ 1093.311084] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 1093.317046] ? is_bpf_text_address+0xd5/0x1b0 [ 1093.321559] ? deref_stack_reg+0x134/0x1d0 [ 1093.325786] ? __lock_acquire+0x6de/0x3ff0 [ 1093.330018] ? __lock_acquire+0x6de/0x3ff0 [ 1093.334236] ? __lock_acquire+0x6de/0x3ff0 [ 1093.338464] ? __lock_acquire+0x6de/0x3ff0 [ 1093.342682] ? mark_held_locks+0xf0/0xf0 [ 1093.346724] ? mark_held_locks+0xf0/0xf0 [ 1093.350787] ? deref_stack_reg+0x134/0x1d0 [ 1093.355019] ? __mutex_add_waiter+0x160/0x160 [ 1093.359511] ? rtnetlink_rcv_msg+0x2f0/0xb80 [ 1093.363933] ? rtnl_getlink+0x620/0x620 [ 1093.367921] rtnetlink_rcv_msg+0x453/0xb80 [ 1093.372145] ? rtnl_calcit.isra.0+0x430/0x430 [ 1093.376625] ? __netlink_lookup+0x3fc/0x730 [ 1093.381053] ? lock_downgrade+0x720/0x720 [ 1093.385189] ? check_preemption_disabled+0x41/0x280 [ 1093.390192] netlink_rcv_skb+0x160/0x440 [ 1093.394262] ? rtnl_calcit.isra.0+0x430/0x430 [ 1093.398744] ? netlink_ack+0xae0/0xae0 [ 1093.402641] netlink_unicast+0x4d5/0x690 [ 1093.406703] ? netlink_sendskb+0x110/0x110 [ 1093.410924] ? _copy_from_iter_full+0x229/0x7c0 [ 1093.415573] ? __phys_addr_symbol+0x2c/0x70 [ 1093.419885] ? __check_object_size+0x17b/0x3e0 [ 1093.424469] netlink_sendmsg+0x6bb/0xc40 [ 1093.428531] ? aa_af_perm+0x230/0x230 [ 1093.432366] ? nlmsg_notify+0x1a0/0x1a0 [ 1093.436366] ? kernel_recvmsg+0x220/0x220 [ 1093.440504] ? nlmsg_notify+0x1a0/0x1a0 [ 1093.444502] sock_sendmsg+0xc3/0x120 [ 1093.448201] ___sys_sendmsg+0x7bb/0x8e0 [ 1093.452193] ? mark_held_locks+0xf0/0xf0 [ 1093.456236] ? copy_msghdr_from_user+0x440/0x440 [ 1093.461000] ? do_futex+0x163/0x1c70 [ 1093.464705] ? __might_fault+0x11f/0x1d0 [ 1093.468762] ? lock_downgrade+0x720/0x720 [ 1093.472907] ? lock_acquire+0x170/0x3c0 [ 1093.476862] ? exit_robust_list+0x2e0/0x2e0 [ 1093.481171] ? __might_fault+0x192/0x1d0 [ 1093.485224] ? _copy_to_user+0xb8/0x100 [ 1093.489205] ? move_addr_to_user+0x190/0x1d0 [ 1093.493602] ? __fdget+0x1a0/0x230 [ 1093.497131] __x64_sys_sendmsg+0x132/0x220 [ 1093.501349] ? __sys_sendmsg+0x1b0/0x1b0 [ 1093.505391] ? __se_sys_futex+0x298/0x3b0 [ 1093.509525] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 1093.514867] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1093.519867] ? do_syscall_64+0x21/0x620 [ 1093.523835] do_syscall_64+0xf9/0x620 [ 1093.527622] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1093.532791] RIP: 0033:0x465b09 [ 1093.535975] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 1093.554859] RSP: 002b:00007ffd4e221a18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1093.562546] RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 [ 1093.569794] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 [ 1093.577040] RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000 [ 1093.584289] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 [ 1093.591536] R13: 000000000010ae05 R14: 000000000056bf60 R15: 000000000056bf60 [ 1093.599658] Kernel Offset: disabled [ 1093.603275] Rebooting in 86400 seconds..