[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.99' (ECDSA) to the list of known hosts. syzkaller login: [ 67.764739][ T6531] chnl_net:caif_netlink_parms(): no params data found [ 67.842974][ T6531] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.850754][ T6531] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.858870][ T6531] device bridge_slave_0 entered promiscuous mode [ 67.869373][ T6531] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.877074][ T6531] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.885453][ T6531] device bridge_slave_1 entered promiscuous mode [ 67.913406][ T6531] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.924229][ T6531] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.956951][ T6531] team0: Port device team_slave_0 added [ 67.964212][ T6531] team0: Port device team_slave_1 added [ 67.993695][ T6531] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.001020][ T6531] 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. [ 68.027722][ T6531] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.041320][ T6531] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.048353][ T6531] 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. [ 68.074560][ T6531] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.110171][ T6531] device hsr_slave_0 entered promiscuous mode [ 68.117476][ T6531] device hsr_slave_1 entered promiscuous mode [ 68.237097][ T6531] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.247854][ T6531] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.258259][ T6531] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.269457][ T6531] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.294366][ T6531] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.301539][ T6531] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.309204][ T6531] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.317738][ T6531] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.363749][ T6531] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.376143][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.388054][ T31] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.397196][ T31] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.406063][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.420420][ T6531] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.431234][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.442319][ T1277] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.449401][ T1277] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.462060][ T6850] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.470990][ T6850] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.478016][ T6850] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.501693][ T6850] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.511066][ T6850] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.519358][ T6850] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.533552][ T6531] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.546774][ T6531] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.556347][ T6849] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.565016][ T6849] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.584097][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.591644][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.605240][ T6531] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.625185][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.645969][ T6531] device veth0_vlan entered promiscuous mode [ 68.653226][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.663295][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.672065][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.684720][ T6531] device veth1_vlan entered promiscuous mode [ 68.692355][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.714524][ T6849] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.723652][ T6849] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.734843][ T6531] device veth0_macvtap entered promiscuous mode [ 68.745058][ T6531] device veth1_macvtap entered promiscuous mode [ 68.755342][ T6849] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.771812][ T6531] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.779860][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.788517][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.802813][ T6531] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.810522][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready executing program [ 68.818994][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.833193][ T6531] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.842182][ T6531] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.851572][ T6531] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.860966][ T6531] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 69.097331][ C1] vcan0: j1939_xtp_rx_dat: no tx connection found executing program [ 69.853965][ C1] vcan0: j1939_tp_rxtimer: 0xffff88806b51e800: rx timeout, send abort [ 69.863219][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff88806b3c3800: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 69.877632][ C0] vcan0: j1939_xtp_rx_dat_one: 0xffff88806b3c3c00: last 00 [ 69.877670][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff88806b3c3c00: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. executing program [ 69.885791][ C0] vcan0: j1939_xtp_rx_dat_one: 0xffff88806b3c3c00: last 00 [ 69.899308][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff88801e257c00: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 69.906650][ C0] vcan0: j1939_xtp_rx_dat_one: 0xffff88806b3c4000: last 00 [ 69.928063][ C0] vcan0: j1939_xtp_rx_dat: no rx connection found [ 70.362891][ C1] vcan0: j1939_tp_rxtimer: 0xffff88806b51e800: abort rx timeout. Force session deactivation executing program executing program [ 70.710216][ C1] vcan0: j1939_xtp_rx_dat: no tx connection found executing program [ 70.918759][ C0] vcan0: j1939_xtp_rx_dat: no tx connection found executing program executing program [ 71.366323][ C0] vcan0: j1939_tp_rxtimer: 0xffff888019fa1400: rx timeout, send abort [ 71.469585][ C1] vcan0: j1939_tp_rxtimer: 0xffff88806a955400: rx timeout, send abort [ 71.485479][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff88801c04f400: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 71.499803][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff88801c04f800: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 71.514252][ C1] vcan0: j1939_xtp_rx_abort_one: 0xffff88806ba5a800: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 71.555522][ C0] vcan0: j1939_tp_rxtimer: 0xffff88807a489800: rx timeout, send abort [ 71.675269][ C0] vcan0: j1939_tp_rxtimer: 0xffff88801ea08c00: rx timeout, send abort [ 71.683647][ C0] vcan0: j1939_xtp_rx_abort_one: 0xffff8880758e0c00: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. [ 71.698644][ C0] ------------[ cut here ]------------ [ 71.704298][ C0] WARNING: CPU: 0 PID: 13 at net/can/j1939/transport.c:1090 j1939_session_deactivate+0xaf/0xd0 [ 71.714673][ C0] Modules linked in: [ 71.718551][ C0] CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.15.0-rc3-syzkaller #0 [ 71.726790][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.736860][ C0] RIP: 0010:j1939_session_deactivate+0xaf/0xd0 [ 71.743031][ C0] Code: fd 01 76 21 e8 22 8a 5f f9 48 89 ef e8 2a fc ff ff 4c 89 e7 41 89 c5 e8 1f 62 21 01 44 89 e8 5d 41 5c 41 5d c3 e8 01 8a 5f f9 <0f> 0b eb d6 4c 89 ef e8 05 da a6 f9 eb b5 48 89 ef e8 0b da a6 f9 [ 71.762648][ C0] RSP: 0018:ffffc90000d27990 EFLAGS: 00010246 [ 71.768699][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000100 [ 71.776675][ C0] RDX: ffff888011ef8000 RSI: ffffffff881673af RDI: 0000000000000003 [ 71.784649][ C0] RBP: ffff8880758e0c00 R08: 0000000000000001 R09: ffff8880758e0c2b [ 71.792632][ C0] R10: ffffffff88167383 R11: 000000000000001d R12: ffff888022ad5070 [ 71.800605][ C0] R13: 0000000000000001 R14: ffff8880758e2818 R15: ffffffff8aa04e60 [ 71.808560][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 71.817500][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.824089][ C0] CR2: 00007f304593f000 CR3: 000000006ffb4000 CR4: 00000000003506f0 [ 71.832067][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.840046][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.848006][ C0] Call Trace: [ 71.851291][ C0] j1939_session_deactivate_activate_next+0x12/0x35 [ 71.857873][ C0] j1939_xtp_rx_abort_one.cold+0x20b/0x33c [ 71.863685][ C0] j1939_tp_recv+0x8f4/0xb40 [ 71.868263][ C0] j1939_can_recv+0x6d7/0x930 [ 71.872949][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 71.878227][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 71.883519][ C0] can_rcv_filter+0x5d4/0x8d0 [ 71.888183][ C0] can_receive+0x31d/0x580 [ 71.892608][ C0] can_rcv+0x120/0x1c0 [ 71.896660][ C0] ? can_receive+0x580/0x580 [ 71.901254][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 71.907133][ C0] ? __netif_receive_skb_core+0x3640/0x3640 [ 71.913033][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 71.918043][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 71.922986][ C0] __netif_receive_skb+0x24/0x1b0 [ 71.927995][ C0] process_backlog+0x2a5/0x6c0 [ 71.932766][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 71.937602][ C0] __napi_poll+0xaf/0x440 [ 71.941953][ C0] net_rx_action+0x801/0xb40 [ 71.946534][ C0] ? napi_threaded_poll+0x520/0x520 [ 71.951738][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 71.956579][ C0] __do_softirq+0x29b/0x9c2 [ 71.961095][ C0] ? __irq_exit_rcu+0x180/0x180 [ 71.965931][ C0] run_ksoftirqd+0x2d/0x60 [ 71.970352][ C0] smpboot_thread_fn+0x645/0x9c0 [ 71.975276][ C0] ? __smpboot_create_thread.part.0+0x370/0x370 [ 71.981522][ C0] kthread+0x3e5/0x4d0 [ 71.985581][ C0] ? set_kthread_struct+0x130/0x130 [ 71.990976][ C0] ret_from_fork+0x1f/0x30 [ 71.995391][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 72.001952][ C0] CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.15.0-rc3-syzkaller #0 [ 72.010172][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.020211][ C0] Call Trace: [ 72.023481][ C0] dump_stack_lvl+0xcd/0x134 [ 72.028067][ C0] panic+0x2b0/0x6dd [ 72.031944][ C0] ? __warn_printk+0xf3/0xf3 [ 72.036523][ C0] ? __warn.cold+0x1a/0x44 [ 72.040924][ C0] ? j1939_session_deactivate+0xaf/0xd0 [ 72.046497][ C0] __warn.cold+0x35/0x44 [ 72.050740][ C0] ? j1939_session_deactivate+0xaf/0xd0 [ 72.056282][ C0] report_bug+0x1bd/0x210 [ 72.060617][ C0] handle_bug+0x3c/0x60 [ 72.064793][ C0] exc_invalid_op+0x14/0x40 [ 72.069283][ C0] asm_exc_invalid_op+0x12/0x20 [ 72.074124][ C0] RIP: 0010:j1939_session_deactivate+0xaf/0xd0 [ 72.080271][ C0] Code: fd 01 76 21 e8 22 8a 5f f9 48 89 ef e8 2a fc ff ff 4c 89 e7 41 89 c5 e8 1f 62 21 01 44 89 e8 5d 41 5c 41 5d c3 e8 01 8a 5f f9 <0f> 0b eb d6 4c 89 ef e8 05 da a6 f9 eb b5 48 89 ef e8 0b da a6 f9 [ 72.099869][ C0] RSP: 0018:ffffc90000d27990 EFLAGS: 00010246 [ 72.105937][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000100 [ 72.113891][ C0] RDX: ffff888011ef8000 RSI: ffffffff881673af RDI: 0000000000000003 [ 72.121850][ C0] RBP: ffff8880758e0c00 R08: 0000000000000001 R09: ffff8880758e0c2b [ 72.129808][ C0] R10: ffffffff88167383 R11: 000000000000001d R12: ffff888022ad5070 [ 72.137769][ C0] R13: 0000000000000001 R14: ffff8880758e2818 R15: ffffffff8aa04e60 [ 72.145727][ C0] ? j1939_session_deactivate+0x83/0xd0 [ 72.151262][ C0] ? j1939_session_deactivate+0xaf/0xd0 [ 72.156799][ C0] j1939_session_deactivate_activate_next+0x12/0x35 [ 72.163377][ C0] j1939_xtp_rx_abort_one.cold+0x20b/0x33c [ 72.169170][ C0] j1939_tp_recv+0x8f4/0xb40 [ 72.173745][ C0] j1939_can_recv+0x6d7/0x930 [ 72.178410][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 72.183696][ C0] ? j1939_netdev_notify+0x1d0/0x1d0 [ 72.188966][ C0] can_rcv_filter+0x5d4/0x8d0 [ 72.193631][ C0] can_receive+0x31d/0x580 [ 72.198035][ C0] can_rcv+0x120/0x1c0 [ 72.202086][ C0] ? can_receive+0x580/0x580 [ 72.206661][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 72.212542][ C0] ? __netif_receive_skb_core+0x3640/0x3640 [ 72.218428][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 72.223449][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 72.228380][ C0] __netif_receive_skb+0x24/0x1b0 [ 72.233516][ C0] process_backlog+0x2a5/0x6c0 [ 72.238280][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 72.243123][ C0] __napi_poll+0xaf/0x440 [ 72.247494][ C0] net_rx_action+0x801/0xb40 [ 72.252073][ C0] ? napi_threaded_poll+0x520/0x520 [ 72.257264][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 72.262153][ C0] __do_softirq+0x29b/0x9c2 [ 72.266648][ C0] ? __irq_exit_rcu+0x180/0x180 [ 72.271596][ C0] run_ksoftirqd+0x2d/0x60 [ 72.275999][ C0] smpboot_thread_fn+0x645/0x9c0 [ 72.280934][ C0] ? __smpboot_create_thread.part.0+0x370/0x370 [ 72.287181][ C0] kthread+0x3e5/0x4d0 [ 72.291251][ C0] ? set_kthread_struct+0x130/0x130 [ 72.296441][ C0] ret_from_fork+0x1f/0x30 [ 72.301186][ C0] Kernel Offset: disabled [ 72.305614][ C0] Rebooting in 86400 seconds..