[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.29' (ECDSA) to the list of known hosts. syzkaller login: [ 65.393782][ T8414] chnl_net:caif_netlink_parms(): no params data found [ 65.428655][ T8414] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.435975][ T8414] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.443883][ T8414] device bridge_slave_0 entered promiscuous mode [ 65.451307][ T8414] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.459081][ T8414] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.467499][ T8414] device bridge_slave_1 entered promiscuous mode [ 65.482732][ T8414] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.493377][ T8414] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.509902][ T8414] team0: Port device team_slave_0 added [ 65.517025][ T8414] team0: Port device team_slave_1 added [ 65.529857][ T8414] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.536848][ T8414] 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. [ 65.562960][ T8414] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.574534][ T8414] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.581469][ T8414] 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. [ 65.608014][ T8414] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.628565][ T8414] device hsr_slave_0 entered promiscuous mode [ 65.635080][ T8414] device hsr_slave_1 entered promiscuous mode [ 65.696895][ T8414] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.705251][ T8414] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.714147][ T8414] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.723612][ T8414] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.739995][ T8414] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.747062][ T8414] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.754369][ T8414] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.761407][ T8414] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.788902][ T8414] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.799682][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.808498][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.816457][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.824135][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.834167][ T8414] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.843667][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.851905][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.858975][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.868324][ T3066] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.876557][ T3066] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.883613][ T3066] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.898632][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.914075][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.921843][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.930874][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.939614][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.949348][ T8414] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.966626][ T8414] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.973749][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.981101][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.995851][ T4822] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.012393][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.020539][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.028595][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.036211][ T8414] device veth0_vlan entered promiscuous mode [ 66.046338][ T8414] device veth1_vlan entered promiscuous mode [ 66.062162][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.069953][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.078460][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.088154][ T8414] device veth0_macvtap entered promiscuous mode [ 66.097403][ T8414] device veth1_macvtap entered promiscuous mode [ 66.110667][ T8414] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.118058][ T4822] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.127054][ T4822] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.137564][ T8414] batman_adv: batadv0: Interface activated: batadv_slave_1 executing program [ 66.146035][ T4822] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.156098][ T8414] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.165603][ T8414] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.174610][ T8414] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.183713][ T8414] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 66.371757][ C0] vcan0: j1939_xtp_rx_dpo: no connection found [ 66.378021][ C0] vcan0: j1939_xtp_rx_dat: no tx connection found executing program [ 66.624246][ C0] vcan0: j1939_tp_rxtimer: 0xffff8880169c1800: rx timeout, send abort executing program [ 66.791932][ C0] vcan0: j1939_tp_rxtimer: 0xffff8880287bc800: rx timeout, send abort executing program [ 66.885516][ C1] vcan0: j1939_xtp_rx_dat: no tx connection found [ 66.892043][ C1] vcan0: j1939_xtp_rx_dat: no tx connection found [ 66.898467][ C1] vcan0: j1939_xtp_rx_dat_one: 0xffff888024975400: last 15 [ 66.910823][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff888021fc3400: 0x00000: (5) Maximal retransmit request limit reached [ 66.922266][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff8880285b2c00: 0x00000: (5) Maximal retransmit request limit reached [ 66.933728][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff888024975400: 0x00000: (5) Maximal retransmit request limit reached [ 66.959465][ C0] vcan0: j1939_tp_rxtimer: 0xffff88803a324400: rx timeout, send abort [ 67.127896][ C0] vcan0: j1939_tp_rxtimer: 0xffff888038a50800: rx timeout, send abort [ 67.136222][ C0] vcan0: j1939_xtp_rx_abort_one: 0xffff8880285b5400: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 67.150584][ C0] vcan0: j1939_xtp_rx_abort_one: 0xffff8880285b5800: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 67.165621][ C0] ------------[ cut here ]------------ [ 67.171074][ C0] WARNING: CPU: 0 PID: 13 at net/can/j1939/transport.c:1085 j1939_session_deactivate+0xaf/0xd0 [ 67.181430][ C0] Modules linked in: [ 67.185331][ C0] CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.14.0-syzkaller #0 [ 67.193240][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.203312][ C0] RIP: 0010:j1939_session_deactivate+0xaf/0xd0 [ 67.209460][ C0] Code: fd 01 76 21 e8 c2 38 68 f9 48 89 ef e8 2a fc ff ff 4c 89 e7 41 89 c5 e8 9f ee 1f 01 44 89 e8 5d 41 5c 41 5d c3 e8 a1 38 68 f9 <0f> 0b eb d6 4c 89 ef e8 c5 7b ae f9 eb b5 48 89 ef e8 cb 7b ae f9 [ 67.229070][ C0] RSP: 0018:ffffc90000d27990 EFLAGS: 00010246 [ 67.235167][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000100 [ 67.243261][ C0] RDX: ffff888010a70000 RSI: ffffffff880de08f RDI: 0000000000000003 [ 67.251216][ C0] RBP: ffff8880285b5800 R08: 0000000000000001 R09: ffff8880285b582b [ 67.259201][ C0] R10: ffffffff880de063 R11: 000000000000001d R12: ffff8880205f1070 [ 67.267173][ C0] R13: 0000000000000001 R14: ffff88802ef13818 R15: ffffffff8a9ed6a0 [ 67.275141][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 67.284092][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.290660][ C0] CR2: 0000000020000040 CR3: 0000000036fa7000 CR4: 00000000001506f0 [ 67.298632][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.306602][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.314570][ C0] Call Trace: [ 67.317834][ C0] j1939_session_deactivate_activate_next+0x12/0x35 [ 67.324436][ C0] j1939_xtp_rx_abort_one.cold+0x205/0x321 [ 67.330233][ C0] j1939_tp_recv+0x909/0xb40 [ 67.334819][ C0] j1939_can_recv+0x6d7/0x930 [ 67.339479][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 67.344753][ C0] ? __mod_timer+0x83c/0xe30 [ 67.349333][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 67.354608][ C0] can_rcv_filter+0x5d4/0x8d0 [ 67.359268][ C0] can_receive+0x31d/0x580 [ 67.363680][ C0] ? call_timer_fn+0x213/0x6b0 [ 67.368427][ C0] can_rcv+0x120/0x1c0 [ 67.372494][ C0] ? can_receive+0x580/0x580 [ 67.377065][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 67.382954][ C0] ? __netif_receive_skb_core+0x37c0/0x37c0 [ 67.388829][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 67.393846][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 67.398766][ C0] __netif_receive_skb+0x24/0x1b0 [ 67.403782][ C0] process_backlog+0x2a5/0x6c0 [ 67.408543][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 67.413746][ C0] ? trace_hardirqs_on+0x5b/0x1c0 [ 67.418755][ C0] __napi_poll+0xaf/0x440 [ 67.423080][ C0] net_rx_action+0x801/0xb40 [ 67.427652][ C0] ? napi_threaded_poll+0x520/0x520 [ 67.432852][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 67.437698][ C0] __do_softirq+0x29b/0x9c2 [ 67.442200][ C0] ? __irq_exit_rcu+0x180/0x180 [ 67.447044][ C0] run_ksoftirqd+0x2d/0x60 [ 67.451454][ C0] smpboot_thread_fn+0x645/0x9c0 [ 67.456388][ C0] ? __smpboot_create_thread.part.0+0x370/0x370 [ 67.462621][ C0] kthread+0x3e5/0x4d0 [ 67.466671][ C0] ? set_kthread_struct+0x130/0x130 [ 67.471884][ C0] ret_from_fork+0x1f/0x30 [ 67.476299][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 67.483130][ C0] CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.14.0-syzkaller #0 [ 67.491003][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.501037][ C0] Call Trace: [ 67.504298][ C0] dump_stack_lvl+0xcd/0x134 [ 67.508873][ C0] panic+0x306/0x73d [ 67.512747][ C0] ? __warn_printk+0xf3/0xf3 [ 67.517337][ C0] ? __warn.cold+0x1a/0x44 [ 67.521740][ C0] ? j1939_session_deactivate+0xaf/0xd0 [ 67.527281][ C0] __warn.cold+0x35/0x44 [ 67.531500][ C0] ? j1939_session_deactivate+0xaf/0xd0 [ 67.537035][ C0] report_bug+0x1bd/0x210 [ 67.541347][ C0] handle_bug+0x3c/0x60 [ 67.545586][ C0] exc_invalid_op+0x14/0x40 [ 67.550070][ C0] asm_exc_invalid_op+0x12/0x20 [ 67.554905][ C0] RIP: 0010:j1939_session_deactivate+0xaf/0xd0 [ 67.561045][ C0] Code: fd 01 76 21 e8 c2 38 68 f9 48 89 ef e8 2a fc ff ff 4c 89 e7 41 89 c5 e8 9f ee 1f 01 44 89 e8 5d 41 5c 41 5d c3 e8 a1 38 68 f9 <0f> 0b eb d6 4c 89 ef e8 c5 7b ae f9 eb b5 48 89 ef e8 cb 7b ae f9 [ 67.580627][ C0] RSP: 0018:ffffc90000d27990 EFLAGS: 00010246 [ 67.586670][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000100 [ 67.594617][ C0] RDX: ffff888010a70000 RSI: ffffffff880de08f RDI: 0000000000000003 [ 67.602565][ C0] RBP: ffff8880285b5800 R08: 0000000000000001 R09: ffff8880285b582b [ 67.610529][ C0] R10: ffffffff880de063 R11: 000000000000001d R12: ffff8880205f1070 [ 67.618477][ C0] R13: 0000000000000001 R14: ffff88802ef13818 R15: ffffffff8a9ed6a0 [ 67.626433][ C0] ? j1939_session_deactivate+0x83/0xd0 [ 67.631967][ C0] ? j1939_session_deactivate+0xaf/0xd0 [ 67.637505][ C0] j1939_session_deactivate_activate_next+0x12/0x35 [ 67.644075][ C0] j1939_xtp_rx_abort_one.cold+0x205/0x321 [ 67.649861][ C0] j1939_tp_recv+0x909/0xb40 [ 67.654430][ C0] j1939_can_recv+0x6d7/0x930 [ 67.659101][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 67.664368][ C0] ? __mod_timer+0x83c/0xe30 [ 67.668955][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 67.674219][ C0] can_rcv_filter+0x5d4/0x8d0 [ 67.678880][ C0] can_receive+0x31d/0x580 [ 67.683277][ C0] ? call_timer_fn+0x213/0x6b0 [ 67.688021][ C0] can_rcv+0x120/0x1c0 [ 67.692070][ C0] ? can_receive+0x580/0x580 [ 67.696655][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 67.702531][ C0] ? __netif_receive_skb_core+0x37c0/0x37c0 [ 67.708402][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 67.713408][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 67.718325][ C0] __netif_receive_skb+0x24/0x1b0 [ 67.723331][ C0] process_backlog+0x2a5/0x6c0 [ 67.728083][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 67.733265][ C0] ? trace_hardirqs_on+0x5b/0x1c0 [ 67.738270][ C0] __napi_poll+0xaf/0x440 [ 67.742580][ C0] net_rx_action+0x801/0xb40 [ 67.747151][ C0] ? napi_threaded_poll+0x520/0x520 [ 67.752335][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 67.757182][ C0] __do_softirq+0x29b/0x9c2 [ 67.761670][ C0] ? __irq_exit_rcu+0x180/0x180 [ 67.766507][ C0] run_ksoftirqd+0x2d/0x60 [ 67.770918][ C0] smpboot_thread_fn+0x645/0x9c0 [ 67.775836][ C0] ? __smpboot_create_thread.part.0+0x370/0x370 [ 67.782065][ C0] kthread+0x3e5/0x4d0 [ 67.786124][ C0] ? set_kthread_struct+0x130/0x130 [ 67.791301][ C0] ret_from_fork+0x1f/0x30 [ 67.796961][ C0] Kernel Offset: disabled [ 67.801269][ C0] Rebooting in 86400 seconds..