[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.61' (ECDSA) to the list of known hosts. syzkaller login: [ 63.619153][ T7088] IPVS: ftp: loaded support on port[0] = 21 [ 63.712628][ T7088] chnl_net:caif_netlink_parms(): no params data found [ 63.762175][ T7088] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.770572][ T7088] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.778834][ T7088] device bridge_slave_0 entered promiscuous mode [ 63.787436][ T7088] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.794784][ T7088] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.802426][ T7088] device bridge_slave_1 entered promiscuous mode [ 63.823114][ T7088] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.833872][ T7088] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.856598][ T7088] team0: Port device team_slave_0 added [ 63.863905][ T7088] team0: Port device team_slave_1 added [ 63.882070][ T7088] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.889312][ T7088] 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. [ 63.916571][ T7088] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.929052][ T7088] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.936177][ T7088] 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. [ 63.962182][ T7088] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.048005][ T7088] device hsr_slave_0 entered promiscuous mode [ 64.104796][ T7088] device hsr_slave_1 entered promiscuous mode [ 64.242247][ T7088] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.287456][ T7088] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.356536][ T7088] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.396378][ T7088] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.459782][ T7088] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.467055][ T7088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.474788][ T7088] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.481853][ T7088] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.527905][ T7088] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.540534][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.551061][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.559517][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.568760][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.581510][ T7088] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.592971][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.601730][ T2803] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.608835][ T2803] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.619959][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.629303][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.636408][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.655634][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.665238][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.676336][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.692195][ T7088] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.703298][ T7088] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.716334][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.725468][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.733862][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.742361][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.751225][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.774132][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.781584][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.792692][ T7088] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.813203][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 64.822212][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.842765][ T7088] device veth0_vlan entered promiscuous mode [ 64.849456][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 64.858619][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.867200][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.874874][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.888649][ T7088] device veth1_vlan entered promiscuous mode [ 64.911221][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.919924][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.928626][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.937793][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.948439][ T7088] device veth0_macvtap entered promiscuous mode [ 64.959927][ T7088] device veth1_macvtap entered promiscuous mode [ 64.975843][ T7088] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.983174][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.992977][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.001120][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.010454][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.022029][ T7088] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.029778][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.039060][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 65.298831][ T7300] netlink: 17 bytes leftover after parsing attributes in process `syz-executor125'. [ 65.309237][ T7300] netlink: 32 bytes leftover after parsing attributes in process `syz-executor125'. [ 65.394162][ C0] divide error: 0000 [#1] PREEMPT SMP KASAN [ 65.400096][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-next-20200415-syzkaller #0 [ 65.409169][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.419206][ C0] RIP: 0010:tabledist.part.0+0x134/0x160 [ 65.424809][ C0] Code: 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d c3 e8 f3 2c 25 fb 48 81 eb 00 10 00 00 eb aa e8 e5 2c 25 fb 8d 4c 2d 00 44 89 e8 31 d2 f1 49 29 ec 49 01 d4 eb c7 48 89 df e8 8a 4d 63 fb e9 13 ff ff [ 65.444384][ C0] RSP: 0018:ffffc90000007638 EFLAGS: 00010246 [ 65.450419][ C0] RAX: 0000000045b59ab4 RBX: 0000000000000000 RCX: 0000000000000000 [ 65.458361][ C0] RDX: 0000000000000000 RSI: ffffffff864e07ab RDI: 0000000000000005 [ 65.466304][ C0] RBP: ffffffff80000000 R08: ffffffff898864c0 R09: ffffed101423fc6e [ 65.474259][ C0] R10: ffff8880a11fe36f R11: ffffed101423fc6d R12: 0000003e42c00000 [ 65.482211][ C0] R13: 0000000045b59ab4 R14: ffff888093167330 R15: ffff888093167000 [ 65.490166][ C0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 65.499071][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.505674][ C0] CR2: 0000000020000140 CR3: 000000009fbf7000 CR4: 00000000001406f0 [ 65.513625][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.521722][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.529666][ C0] Call Trace: [ 65.532933][ C0] [ 65.535784][ C0] netem_enqueue+0x412/0x2da0 [ 65.540432][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 65.545342][ C0] ? rcu_read_lock_bh_held+0x5a/0xb0 [ 65.550600][ C0] __dev_queue_xmit+0x154a/0x3070 [ 65.555597][ C0] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 65.560861][ C0] ? mark_lock+0x60/0xf10 [ 65.565165][ C0] ? __ip6_finish_output+0x442/0xab0 [ 65.570438][ C0] ? print_usage_bug+0x240/0x240 [ 65.575354][ C0] ? lock_release+0x800/0x800 [ 65.580019][ C0] ? lock_downgrade+0x840/0x840 [ 65.584838][ C0] ? rcu_lockdep_current_cpu_online+0xdc/0x130 [ 65.590965][ C0] ? ip6_finish_output2+0xfb5/0x25b0 [ 65.596220][ C0] ip6_finish_output2+0xfb5/0x25b0 [ 65.601305][ C0] ? ip6_sk_dst_lookup_flow+0xa90/0xa90 [ 65.606820][ C0] ? lock_downgrade+0x840/0x840 [ 65.611645][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 65.617528][ C0] ? __ip6_finish_output+0x442/0xab0 [ 65.622780][ C0] __ip6_finish_output+0x442/0xab0 [ 65.627862][ C0] ip6_finish_output+0x34/0x1f0 [ 65.632684][ C0] ip6_output+0x239/0x810 [ 65.636984][ C0] ? ip6_finish_output+0x1f0/0x1f0 [ 65.642092][ C0] ? mark_held_locks+0x9f/0xe0 [ 65.646830][ C0] ? __ip6_finish_output+0xab0/0xab0 [ 65.652090][ C0] mld_sendpack+0x961/0xdf0 [ 65.656690][ C0] ? nf_hook.constprop.0+0x520/0x520 [ 65.661952][ C0] ? mark_held_locks+0x9f/0xe0 [ 65.666741][ C0] ? __local_bh_enable_ip+0x159/0x270 [ 65.672107][ C0] mld_ifc_timer_expire+0x42e/0x920 [ 65.677285][ C0] call_timer_fn+0x1ac/0x780 [ 65.681851][ C0] ? mld_dad_timer_expire+0x210/0x210 [ 65.687208][ C0] ? timer_fixup_init+0x60/0x60 [ 65.692032][ C0] ? lock_downgrade+0x840/0x840 [ 65.696857][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.702389][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.708341][ C0] ? _raw_spin_unlock_irq+0x1f/0x80 [ 65.713512][ C0] ? mld_dad_timer_expire+0x210/0x210 [ 65.718854][ C0] run_timer_softirq+0x623/0x1600 [ 65.723850][ C0] ? add_timer+0x830/0x830 [ 65.728238][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.733761][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.739715][ C0] __do_softirq+0x26c/0x9f7 [ 65.744193][ C0] irq_exit+0x192/0x1d0 [ 65.748319][ C0] smp_apic_timer_interrupt+0x19e/0x600 [ 65.753847][ C0] apic_timer_interrupt+0xf/0x20 [ 65.758809][ C0] [ 65.761722][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 65.767075][ C0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 94 1d 52 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 84 1d 52 00 fb f4 cc 41 56 41 55 41 54 55 53 e8 73 95 8a f9 e8 fe 12 c4 fb 0f 1f [ 65.786676][ C0] RSP: 0018:ffffffff89807d98 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 65.795063][ C0] RAX: 1ffffffff132989f RBX: ffffffff898864c0 RCX: 0000000000000000 [ 65.803043][ C0] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffffffff89886d8c [ 65.810987][ C0] RBP: dffffc0000000000 R08: ffffffff898864c0 R09: 0000000000000000 [ 65.818975][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: fffffbfff1310c98 [ 65.826942][ C0] R13: 0000000000000000 R14: ffffffff8a8b4e00 R15: 0000000000000000 [ 65.834903][ C0] default_idle+0x49/0x350 [ 65.839296][ C0] do_idle+0x393/0x690 [ 65.843339][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 65.848335][ C0] ? arch_cpu_idle_exit+0x70/0x70 [ 65.853330][ C0] ? schedule+0xe7/0x2a0 [ 65.857547][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 65.863769][ C0] cpu_startup_entry+0x14/0x20 [ 65.868559][ C0] start_kernel+0x862/0x89c [ 65.873048][ C0] ? mem_encrypt_init+0x5/0x5 [ 65.877700][ C0] ? x86_family+0x3d/0x50 [ 65.882001][ C0] ? load_ucode_bsp+0x23d/0x27d [ 65.886834][ C0] secondary_startup_64+0xa4/0xb0 [ 65.891876][ C0] Modules linked in: [ 65.895805][ C0] ---[ end trace d698bc7af90f0109 ]--- [ 65.901254][ C0] RIP: 0010:tabledist.part.0+0x134/0x160 [ 65.907004][ C0] Code: 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d c3 e8 f3 2c 25 fb 48 81 eb 00 10 00 00 eb aa e8 e5 2c 25 fb 8d 4c 2d 00 44 89 e8 31 d2 f1 49 29 ec 49 01 d4 eb c7 48 89 df e8 8a 4d 63 fb e9 13 ff ff [ 65.926626][ C0] RSP: 0018:ffffc90000007638 EFLAGS: 00010246 [ 65.932670][ C0] RAX: 0000000045b59ab4 RBX: 0000000000000000 RCX: 0000000000000000 [ 65.940694][ C0] RDX: 0000000000000000 RSI: ffffffff864e07ab RDI: 0000000000000005 [ 65.948694][ C0] RBP: ffffffff80000000 R08: ffffffff898864c0 R09: ffffed101423fc6e [ 65.956680][ C0] R10: ffff8880a11fe36f R11: ffffed101423fc6d R12: 0000003e42c00000 [ 65.964802][ C0] R13: 0000000045b59ab4 R14: ffff888093167330 R15: ffff888093167000 [ 65.972785][ C0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 65.981779][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.988366][ C0] CR2: 0000000020000140 CR3: 0000000009879000 CR4: 00000000001406f0 [ 65.996403][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.004386][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.012342][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 66.020640][ C0] Kernel Offset: disabled [ 66.024952][ C0] Rebooting in 86400 seconds..