[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts. syzkaller login: [ 62.176305][ T6855] IPVS: ftp: loaded support on port[0] = 21 [ 62.282004][ T6855] chnl_net:caif_netlink_parms(): no params data found [ 62.335368][ T6855] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.342791][ T6855] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.351256][ T6855] device bridge_slave_0 entered promiscuous mode [ 62.359647][ T6855] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.367091][ T6855] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.375495][ T6855] device bridge_slave_1 entered promiscuous mode [ 62.396512][ T6855] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.407942][ T6855] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.431870][ T6855] team0: Port device team_slave_0 added [ 62.439163][ T6855] team0: Port device team_slave_1 added [ 62.457889][ T6855] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.464966][ T6855] 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. [ 62.491183][ T6855] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.503779][ T6855] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.511044][ T6855] 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. [ 62.537057][ T6855] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.565404][ T6855] device hsr_slave_0 entered promiscuous mode [ 62.572274][ T6855] device hsr_slave_1 entered promiscuous mode [ 62.672103][ T6855] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.682704][ T6855] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.693962][ T6855] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.703019][ T6855] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.731494][ T6855] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.738635][ T6855] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.746667][ T6855] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.753861][ T6855] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.802481][ T6855] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.815806][ T6800] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.827053][ T6800] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.835840][ T6800] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.844114][ T6800] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 62.857449][ T6855] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.868433][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.877534][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.884662][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.901945][ T6800] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.911098][ T6800] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.918579][ T6800] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.941033][ T6800] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.949493][ T6800] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.959487][ T6800] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.973941][ T6855] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.985341][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.994680][ T2636] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.003082][ T2636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.024170][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.032291][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.046685][ T6855] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.066918][ T2636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.088172][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.096943][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.105783][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.117529][ T6855] device veth0_vlan entered promiscuous mode [ 63.129616][ T6855] device veth1_vlan entered promiscuous mode [ 63.153645][ T2636] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.162898][ T2636] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.171559][ T2636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.182337][ T6855] device veth0_macvtap entered promiscuous mode [ 63.193115][ T6855] device veth1_macvtap entered promiscuous mode [ 63.213342][ T6855] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.221656][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.232026][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.245425][ T6855] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.253362][ T2469] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.266192][ T6855] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.276244][ T6855] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.285361][ T6855] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.294278][ T6855] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.409343][ T357] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.423620][ T357] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.445802][ T2469] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 63.464692][ T357] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.474089][ T357] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.493115][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 63.504586][ T6855] netlink: 12 bytes leftover after parsing attributes in process `syz-executor857'. [ 63.550339][ C1] divide_error: 0000 [#1] PREEMPT SMP KASAN [ 63.556240][ C1] CPU: 1 PID: 6855 Comm: syz-executor857 Not tainted 5.9.0-rc8-syzkaller #0 [ 63.564879][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.575262][ C1] RIP: 0010:tabledist.part.0+0x22a/0x2a0 [ 63.580864][ C1] Code: 4c 01 f0 48 c1 e8 20 41 89 45 00 41 89 c6 e8 3d 9a d2 fa 48 85 db 0f 85 6d fe ff ff e8 2f 9a d2 fa 8d 4c 2d 00 44 89 f0 31 d2 f1 49 29 ec 49 01 d4 e9 2b ff ff ff e8 14 9a d2 fa 48 81 eb 00 [ 63.600477][ C1] RSP: 0018:ffffc90000da86d8 EFLAGS: 00010246 [ 63.606526][ C1] RAX: 00000000f1328ef9 RBX: 0000000000000000 RCX: 0000000000000000 [ 63.614469][ C1] RDX: 0000000000000000 RSI: ffffffff86a3ee51 RDI: 0000000000000005 [ 63.622498][ C1] RBP: ffffffff80000000 R08: 0000000000000000 R09: ffffffff8b5cdd4f [ 63.630454][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 63.638399][ C1] R13: ffff8880a7fba37c R14: 00000000f1328ef9 R15: 0000000000000000 [ 63.647140][ C1] FS: 0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 [ 63.656047][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.662735][ C1] CR2: 00000000004c9428 CR3: 0000000009e8d000 CR4: 00000000001506e0 [ 63.670684][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.678646][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.686606][ C1] Call Trace: [ 63.689890][ C1] [ 63.692734][ C1] netem_enqueue+0x461/0x3560 [ 63.697405][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 63.702405][ C1] ? netem_dump+0x1120/0x1120 [ 63.707065][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 63.712107][ C1] __dev_queue_xmit+0x1881/0x2d70 [ 63.717115][ C1] ? find_held_lock+0x2d/0x110 [ 63.721849][ C1] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 63.727105][ C1] ? mark_held_locks+0x9f/0xe0 [ 63.732014][ C1] ? read_seqcount_t_begin+0x197/0x240 [ 63.737479][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 63.743435][ C1] ? memcpy+0x39/0x60 [ 63.747400][ C1] neigh_resolve_output+0x3fe/0x6a0 [ 63.752593][ C1] ip6_finish_output2+0x8ac/0x1780 [ 63.757740][ C1] __ip6_finish_output+0x447/0xab0 [ 63.762849][ C1] ip6_finish_output+0x34/0x1f0 [ 63.767672][ C1] ip6_output+0x1db/0x520 [ 63.771993][ C1] mld_sendpack+0x92a/0xdb0 [ 63.776468][ C1] ? mark_lock+0x82/0x1660 [ 63.780876][ C1] ? igmp6_group_queried+0x370/0x370 [ 63.786281][ C1] ? __local_bh_enable_ip+0x10f/0x1f0 [ 63.791628][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 63.797584][ C1] ? __local_bh_enable_ip+0x10f/0x1f0 [ 63.802927][ C1] ? mld_ifc_timer_expire+0x5f8/0xf10 [ 63.808288][ C1] mld_ifc_timer_expire+0x60a/0xf10 [ 63.813468][ C1] call_timer_fn+0x1ac/0x760 [ 63.818053][ C1] ? mld_send_initial_cr.part.0+0x150/0x150 [ 63.823934][ C1] ? msleep_interruptible+0x130/0x130 [ 63.829831][ C1] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.835015][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x530 [ 63.842548][ C1] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.847815][ C1] ? mld_send_initial_cr.part.0+0x150/0x150 [ 63.853685][ C1] __run_timers.part.0+0x67c/0xaa0 [ 63.858774][ C1] ? call_timer_fn+0x760/0x760 [ 63.863549][ C1] ? mark_lock+0x82/0x1660 [ 63.867939][ C1] ? mark_held_locks+0x9f/0xe0 [ 63.872675][ C1] run_timer_softirq+0xb3/0x1d0 [ 63.877499][ C1] __do_softirq+0x1f8/0xb23 [ 63.881984][ C1] asm_call_irq_on_stack+0xf/0x20 [ 63.886977][ C1] [ 63.889894][ C1] do_softirq_own_stack+0x9b/0xd0 [ 63.894891][ C1] do_softirq+0x154/0x1b0 [ 63.899193][ C1] ? nf_ct_iterate_cleanup+0x77/0x330 [ 63.904551][ C1] __local_bh_enable_ip+0x196/0x1f0 [ 63.909735][ C1] nf_ct_iterate_cleanup+0x9e/0x330 [ 63.914916][ C1] ? nf_ct_port_nlattr_to_tuple+0x1d0/0x1d0 [ 63.920801][ C1] nf_ct_iterate_cleanup_net+0x113/0x170 [ 63.926407][ C1] ? iterate_cleanup_work+0x130/0x130 [ 63.931751][ C1] ? nf_ct_iterate_cleanup+0x330/0x330 [ 63.937188][ C1] ? iterate_cleanup_work+0x130/0x130 [ 63.942550][ C1] ? nf_tables_flowtable_event+0x31/0x460 [ 63.948264][ C1] masq_device_event+0xae/0xe0 [ 63.953004][ C1] notifier_call_chain+0xb5/0x200 [ 63.958022][ C1] call_netdevice_notifiers_info+0xb5/0x130 [ 63.964163][ C1] dev_close_many+0x30b/0x650 [ 63.968824][ C1] ? do_raw_spin_unlock+0x171/0x230 [ 63.973997][ C1] ? napi_watchdog+0xc0/0xc0 [ 63.978566][ C1] rollback_registered_many+0x3a8/0x1550 [ 63.984170][ C1] ? mark_lock+0x82/0x1660 [ 63.988568][ C1] ? lock_is_held_type+0xbb/0xf0 [ 63.993478][ C1] ? netdev_pick_tx+0xb50/0xb50 [ 63.998319][ C1] ? check_preemption_disabled+0x50/0x130 [ 64.004021][ C1] ? queue_delayed_work_on+0x15d/0x1d0 [ 64.009452][ C1] ? check_preemption_disabled+0x50/0x130 [ 64.015161][ C1] ? queue_delayed_work_on+0x15d/0x1d0 [ 64.020853][ C1] unregister_netdevice_queue+0x2dd/0x570 [ 64.026562][ C1] ? unregister_netdevice_many+0x50/0x50 [ 64.032188][ C1] ? linkwatch_schedule_work+0x181/0x1c0 [ 64.037794][ C1] ? linkwatch_fire_event+0x65/0x1d0 [ 64.043064][ C1] __tun_detach+0x105a/0x13d0 [ 64.047726][ C1] ? lock_is_held_type+0xbb/0xf0 [ 64.052639][ C1] tun_chr_close+0xd9/0x180 [ 64.057117][ C1] __fput+0x285/0x920 [ 64.061092][ C1] ? __tun_detach+0x13d0/0x13d0 [ 64.065927][ C1] task_work_run+0xdd/0x190 [ 64.070425][ C1] do_exit+0xb7d/0x29f0 [ 64.074553][ C1] ? mm_update_next_owner+0x7a0/0x7a0 [ 64.080011][ C1] ? lock_is_held_type+0xbb/0xf0 [ 64.084922][ C1] do_group_exit+0x125/0x310 [ 64.089500][ C1] __x64_sys_exit_group+0x3a/0x50 [ 64.094496][ C1] do_syscall_64+0x2d/0x70 [ 64.098884][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.104758][ C1] RIP: 0033:0x442d78 [ 64.108632][ C1] Code: Bad RIP value. [ 64.112668][ C1] RSP: 002b:00007ffdd2151d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 64.121056][ C1] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000442d78 [ 64.129016][ C1] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 64.136978][ C1] RBP: 00000000004c93f0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 64.144927][ C1] R10: 000000200000005b R11: 0000000000000246 R12: 0000000000000001 [ 64.152871][ C1] R13: 00000000006de240 R14: 0000000000000048 R15: 0000000000000004 [ 64.160820][ C1] Modules linked in: [ 64.164758][ C1] ---[ end trace 95c854ea04de1591 ]--- [ 64.170244][ C1] RIP: 0010:tabledist.part.0+0x22a/0x2a0 [ 64.175899][ C1] Code: 4c 01 f0 48 c1 e8 20 41 89 45 00 41 89 c6 e8 3d 9a d2 fa 48 85 db 0f 85 6d fe ff ff e8 2f 9a d2 fa 8d 4c 2d 00 44 89 f0 31 d2 f1 49 29 ec 49 01 d4 e9 2b ff ff ff e8 14 9a d2 fa 48 81 eb 00 [ 64.195589][ C1] RSP: 0018:ffffc90000da86d8 EFLAGS: 00010246 [ 64.201734][ C1] RAX: 00000000f1328ef9 RBX: 0000000000000000 RCX: 0000000000000000 [ 64.209703][ C1] RDX: 0000000000000000 RSI: ffffffff86a3ee51 RDI: 0000000000000005 [ 64.217702][ C1] RBP: ffffffff80000000 R08: 0000000000000000 R09: ffffffff8b5cdd4f [ 64.225704][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 64.234150][ C1] R13: ffff8880a7fba37c R14: 00000000f1328ef9 R15: 0000000000000000 [ 64.242175][ C1] FS: 0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 [ 64.251217][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.257801][ C1] CR2: 00000000004c9428 CR3: 0000000009e8d000 CR4: 00000000001506e0 [ 64.265789][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.273798][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.281809][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 64.290354][ C1] Kernel Offset: disabled [ 64.294666][ C1] Rebooting in 86400 seconds..