[ OK ] Started Getty on tty1. [ 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... [ 47.525598][ T6767] bash (6767) used greatest stack depth: 23552 bytes left [ 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 '10.128.0.101' (ECDSA) to the list of known hosts. syzkaller login: [ 55.718499][ T6844] IPVS: ftp: loaded support on port[0] = 21 [ 55.809468][ T6844] chnl_net:caif_netlink_parms(): no params data found [ 55.859581][ T6844] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.867871][ T6844] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.876074][ T6844] device bridge_slave_0 entered promiscuous mode [ 55.885692][ T6844] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.892907][ T6844] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.901382][ T6844] device bridge_slave_1 entered promiscuous mode [ 55.920031][ T6844] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.931581][ T6844] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.952303][ T6844] team0: Port device team_slave_0 added [ 55.959574][ T6844] team0: Port device team_slave_1 added [ 55.976286][ T6844] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.983249][ T6844] 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. [ 56.009177][ T6844] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.022927][ T6844] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.029853][ T6844] 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. [ 56.055843][ T6844] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.081331][ T6844] device hsr_slave_0 entered promiscuous mode [ 56.087890][ T6844] device hsr_slave_1 entered promiscuous mode [ 56.176838][ T6844] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.186198][ T6844] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.197261][ T6844] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.206113][ T6844] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.229012][ T6844] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.236168][ T6844] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.243895][ T6844] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.251025][ T6844] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.291705][ T6844] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.305469][ T6547] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.315105][ T6547] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.324939][ T6547] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.333554][ T6547] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.346367][ T6844] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.356757][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.365741][ T2867] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.372845][ T2867] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.390453][ T6547] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.398668][ T6547] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.405752][ T6547] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.423015][ T6546] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.431868][ T6546] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.440219][ T6546] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.452550][ T6844] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.463922][ T6844] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.472142][ T6546] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.479816][ T6546] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.499430][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.506942][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.519821][ T6844] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.541131][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.560959][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.569261][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.578510][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.588531][ T6844] device veth0_vlan entered promiscuous mode [ 56.600909][ T6844] device veth1_vlan entered promiscuous mode [ 56.620766][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.629123][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.637899][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.649626][ T6844] device veth0_macvtap entered promiscuous mode [ 56.659380][ T6844] device veth1_macvtap entered promiscuous mode [ 56.676323][ T6844] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.683993][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.694016][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.705814][ T6844] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.714346][ T2867] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 56.725322][ T6844] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.738380][ T6844] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.749275][ T6844] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.760019][ T6844] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.800694][ C1] divide_error: 0000 [#1] PREEMPT SMP KASAN [ 56.806602][ C1] CPU: 1 PID: 2867 Comm: kworker/1:2 Not tainted 5.8.0-syzkaller #0 [ 56.814541][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.824570][ C1] Workqueue: events free_ipc [ 56.829135][ C1] RIP: 0010:tabledist.part.0+0x22a/0x2a0 [ 56.834743][ C1] Code: 4c 01 f0 48 c1 e8 20 41 89 45 00 41 89 c6 e8 2d 13 10 fb 48 85 db 0f 85 6d fe ff ff e8 1f 13 10 fb 8d 4c 2d 00 44 89 f0 31 d2 f1 49 29 ec 49 01 d4 e9 2b ff ff ff e8 04 13 10 fb 48 81 eb 00 [ 56.854319][ C1] RSP: 0018:ffffc90000da8078 EFLAGS: 00010246 [ 56.860353][ C1] RAX: 00000000d6128311 RBX: 0000000000000000 RCX: 0000000000000000 [ 56.868295][ C1] RDX: 0000000000000000 RSI: ffffffff86643961 RDI: 0000000000000005 [ 56.876238][ C1] RBP: ffffffff80000000 R08: 0000000000000000 R09: ffffffff8ab1fd4f [ 56.884224][ C1] R10: 0000000000000000 R11: 1ffffffff183463e R12: 0000000000000000 [ 56.892167][ C1] R13: ffff88809283437c R14: 00000000d6128311 R15: 0000000000000000 [ 56.901194][ C1] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 56.910134][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.916694][ C1] CR2: 00000000004c8e88 CR3: 0000000009a8d000 CR4: 00000000001506e0 [ 56.924639][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.932584][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.940571][ C1] Call Trace: [ 56.943836][ C1] [ 56.946666][ C1] netem_enqueue+0x45e/0x350f [ 56.951312][ C1] ? lock_release+0x8e0/0x8e0 [ 56.956001][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 56.960993][ C1] ? netem_dump+0x1120/0x1120 [ 56.965637][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 56.970596][ C1] __dev_queue_xmit+0x1878/0x2d60 [ 56.975594][ C1] ? lock_acquire+0x1f1/0xad0 [ 56.980242][ C1] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 56.985495][ C1] ? mark_lock+0xbc/0x1710 [ 56.989883][ C1] ? mark_held_locks+0x9f/0xe0 [ 56.994619][ C1] ? ip_finish_output2+0x12f7/0x21f0 [ 56.999874][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 57.005821][ C1] ip_finish_output2+0x1523/0x21f0 [ 57.010904][ C1] ? ip_frag_next+0x9a0/0x9a0 [ 57.015550][ C1] __ip_finish_output+0x779/0xcb0 [ 57.020547][ C1] ? ip_fragment.constprop.0+0x240/0x240 [ 57.026148][ C1] ? __ip_finish_output+0xcb0/0xcb0 [ 57.031316][ C1] ? lock_is_held_type+0xbb/0xf0 [ 57.036244][ C1] ip_finish_output+0x34/0x1f0 [ 57.040978][ C1] ip_output+0x196/0x310 [ 57.045191][ C1] ip_local_out+0xaf/0x1a0 [ 57.049607][ C1] iptunnel_xmit+0x5a0/0x9b0 [ 57.054166][ C1] ? gre_fill_metadata_dst+0x5e0/0x6f0 [ 57.059595][ C1] geneve_xmit+0x11a2/0x2d30 [ 57.064159][ C1] ? geneve_fill_metadata_dst+0x910/0x910 [ 57.069849][ C1] ? skb_crc32c_csum_help+0x70/0x70 [ 57.075016][ C1] ? lock_acquire+0x1f1/0xad0 [ 57.079661][ C1] ? __dev_queue_xmit+0x1da/0x2d60 [ 57.084743][ C1] ? lock_is_held_type+0xbb/0xf0 [ 57.089657][ C1] dev_hard_start_xmit+0x193/0x950 [ 57.094746][ C1] __dev_queue_xmit+0x2091/0x2d60 [ 57.099742][ C1] ? neigh_resolve_output+0x2ec/0x6a0 [ 57.105165][ C1] ? find_held_lock+0x2d/0x110 [ 57.109915][ C1] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 57.115177][ C1] ? mark_held_locks+0x9f/0xe0 [ 57.119912][ C1] ? read_seqcount_t_begin+0xdf/0x270 [ 57.125252][ C1] ? memcpy+0x39/0x60 [ 57.129206][ C1] neigh_resolve_output+0x3fe/0x6a0 [ 57.134375][ C1] ip6_finish_output2+0x8b6/0x17b0 [ 57.139457][ C1] __ip6_finish_output+0x447/0xab0 [ 57.144541][ C1] ip6_finish_output+0x34/0x1f0 [ 57.149358][ C1] ip6_output+0x1db/0x520 [ 57.153657][ C1] mld_sendpack+0x92a/0xdb0 [ 57.158173][ C1] ? igmp6_group_queried+0x370/0x370 [ 57.163429][ C1] ? __local_bh_enable_ip+0xd1/0x190 [ 57.168683][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 57.174629][ C1] ? mld_ifc_timer_expire+0x5f8/0xf10 [ 57.179969][ C1] ? trace_hardirqs_on+0x5f/0x220 [ 57.184962][ C1] mld_ifc_timer_expire+0x60a/0xf10 [ 57.190130][ C1] call_timer_fn+0x1ac/0x760 [ 57.194693][ C1] ? mld_send_initial_cr.part.0+0x150/0x150 [ 57.200597][ C1] ? msleep_interruptible+0x130/0x130 [ 57.205942][ C1] ? _raw_spin_unlock_irq+0x1f/0x80 [ 57.211109][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 57.217056][ C1] ? trace_hardirqs_on+0x5f/0x220 [ 57.222048][ C1] ? mld_send_initial_cr.part.0+0x150/0x150 [ 57.227910][ C1] __run_timers.part.0+0x67c/0xaa0 [ 57.232991][ C1] ? call_timer_fn+0x760/0x760 [ 57.237724][ C1] ? clockevents_program_event+0x12b/0x350 [ 57.243499][ C1] ? mark_held_locks+0x9f/0xe0 [ 57.248230][ C1] ? sched_clock_cpu+0x18/0x1b0 [ 57.253049][ C1] run_timer_softirq+0xae/0x1a0 [ 57.257868][ C1] __do_softirq+0x2de/0xa24 [ 57.262341][ C1] asm_call_on_stack+0xf/0x20 [ 57.266982][ C1] [ 57.269892][ C1] do_softirq_own_stack+0x9d/0xd0 [ 57.274891][ C1] irq_exit_rcu+0x1f3/0x230 [ 57.279364][ C1] sysvec_apic_timer_interrupt+0x51/0xf0 [ 57.284966][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 57.290918][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x8c/0xe0 [ 57.297312][ C1] Code: 48 c7 c0 88 34 b6 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 37 48 83 3d 83 08 c2 01 00 74 22 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 e5 94 5b f9 65 8b 05 5e d2 0d 78 [ 57.316884][ C1] RSP: 0018:ffffc900010f7a70 EFLAGS: 00000282 [ 57.322919][ C1] RAX: 1ffffffff136c691 RBX: 0000000000000282 RCX: 0000000000000006 [ 57.330858][ C1] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000282 [ 57.338800][ C1] RBP: ffffffff89cac960 R08: 0000000000000001 R09: ffffffff8c5edaef [ 57.346753][ C1] R10: fffffbfff18bdb5d R11: 0000000000000000 R12: 00003ffffffffffe [ 57.354691][ C1] R13: 000000000000002e R14: 0000000000000282 R15: 0000000000000001 [ 57.362641][ C1] ida_free+0x268/0x2b0 [ 57.366767][ C1] ? ida_destroy+0x3a0/0x3a0 [ 57.371329][ C1] ? generic_shutdown_super+0x276/0x370 [ 57.376840][ C1] deactivate_locked_super+0x94/0x160 [ 57.382194][ C1] deactivate_super+0xad/0xd0 [ 57.386837][ C1] cleanup_mnt+0x399/0x500 [ 57.391221][ C1] mntput_no_expire+0x883/0xc50 [ 57.396040][ C1] ? clone_private_mount+0x140/0x140 [ 57.401293][ C1] ? __schedule+0x88e/0x21e0 [ 57.405851][ C1] ? _raw_spin_unlock_irq+0x1f/0x80 [ 57.411031][ C1] kern_unmount+0xb5/0xe0 [ 57.415330][ C1] free_ipc+0xbe/0x1b0 [ 57.419367][ C1] process_one_work+0x94c/0x1670 [ 57.424275][ C1] ? lock_release+0x8e0/0x8e0 [ 57.428939][ C1] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 57.434291][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 57.439205][ C1] worker_thread+0x64c/0x1120 [ 57.443859][ C1] ? __kthread_parkme+0x13f/0x1e0 [ 57.448855][ C1] ? process_one_work+0x1670/0x1670 [ 57.454024][ C1] kthread+0x3b5/0x4a0 [ 57.458062][ C1] ? __kthread_bind_mask+0xc0/0xc0 [ 57.463145][ C1] ? __kthread_bind_mask+0xc0/0xc0 [ 57.468239][ C1] ret_from_fork+0x1f/0x30 [ 57.472652][ C1] Modules linked in: [ 57.476596][ C1] ---[ end trace 1b4643dc5c393594 ]--- [ 57.482108][ C1] RIP: 0010:tabledist.part.0+0x22a/0x2a0 [ 57.487751][ C1] Code: 4c 01 f0 48 c1 e8 20 41 89 45 00 41 89 c6 e8 2d 13 10 fb 48 85 db 0f 85 6d fe ff ff e8 1f 13 10 fb 8d 4c 2d 00 44 89 f0 31 d2 f1 49 29 ec 49 01 d4 e9 2b ff ff ff e8 04 13 10 fb 48 81 eb 00 [ 57.508310][ C1] RSP: 0018:ffffc90000da8078 EFLAGS: 00010246 [ 57.514427][ C1] RAX: 00000000d6128311 RBX: 0000000000000000 RCX: 0000000000000000 [ 57.522427][ C1] RDX: 0000000000000000 RSI: ffffffff86643961 RDI: 0000000000000005 [ 57.530435][ C1] RBP: ffffffff80000000 R08: 0000000000000000 R09: ffffffff8ab1fd4f [ 57.538394][ C1] R10: 0000000000000000 R11: 1ffffffff183463e R12: 0000000000000000 [ 57.546388][ C1] R13: ffff88809283437c R14: 00000000d6128311 R15: 0000000000000000 [ 57.554384][ C1] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 57.563334][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.569943][ C1] CR2: 00000000004c8e88 CR3: 0000000009a8d000 CR4: 00000000001506e0 [ 57.577905][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.585888][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.593876][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 57.602281][ C1] Kernel Offset: disabled [ 57.606590][ C1] Rebooting in 86400 seconds..