[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 57.748835][ T26] audit: type=1800 audit(1572046719.848:25): pid=8669 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 57.791496][ T26] audit: type=1800 audit(1572046719.848:26): pid=8669 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 57.841460][ T26] audit: type=1800 audit(1572046719.848:27): pid=8669 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.14' (ECDSA) to the list of known hosts. syzkaller login: [ 68.104635][ T8824] IPVS: ftp: loaded support on port[0] = 21 [ 68.165433][ T8824] chnl_net:caif_netlink_parms(): no params data found [ 68.194987][ T8824] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.202978][ T8824] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.210801][ T8824] device bridge_slave_0 entered promiscuous mode [ 68.219191][ T8824] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.226387][ T8824] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.234114][ T8824] device bridge_slave_1 entered promiscuous mode [ 68.253373][ T8824] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.263807][ T8824] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.283381][ T8824] team0: Port device team_slave_0 added [ 68.290803][ T8824] team0: Port device team_slave_1 added [ 68.363215][ T8824] device hsr_slave_0 entered promiscuous mode [ 68.441513][ T8824] device hsr_slave_1 entered promiscuous mode [ 68.593269][ T8824] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.600563][ T8824] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.608807][ T8824] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.616002][ T8824] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.755727][ T8824] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.802731][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.843500][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.882952][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.912036][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.947790][ T8824] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.013933][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.042907][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.050034][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.103948][ T8852] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.121664][ T8852] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.128780][ T8852] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.180790][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.203217][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.228886][ T8824] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 69.251177][ T8824] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.281782][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.293047][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.302618][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.313830][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.322544][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 69.342628][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.353801][ T8824] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.401725][ C1] divide error: 0000 [#1] PREEMPT SMP KASAN [ 69.407655][ C1] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.4.0-rc4+ #0 [ 69.414999][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.425144][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 69.431128][ C1] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 69.436744][ C1] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 28 bf a2 fb 48 81 eb 00 10 00 00 eb a5 e8 1a bf a2 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 9f 1d de fb e9 0d ff ff [ 69.456327][ C1] RSP: 0018:ffff8880ae908b68 EFLAGS: 00010246 [ 69.462378][ C1] RAX: 0000000091f7c43e RBX: 0000000000000000 RCX: 0000000000000000 [ 69.470336][ C1] RDX: 0000000000000000 RSI: ffffffff85d06296 RDI: 0000000000000005 [ 69.478283][ C1] RBP: ffff8880ae908b90 R08: ffff8880a98fc480 R09: ffffed1013a38a2f [ 69.486243][ C1] R10: ffffed1013a38a2e R11: ffff88809d1c5177 R12: ffffffff80000000 [ 69.494186][ C1] R13: 0000000000000000 R14: 0000000091f7c43e R15: ffff88809d1c5000 [ 69.502134][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 69.511031][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.517595][ C1] CR2: 00005649f89a1110 CR3: 00000000a9697000 CR4: 00000000001406e0 [ 69.525542][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.533487][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.541431][ C1] Call Trace: [ 69.544699][ C1] [ 69.547533][ C1] netem_enqueue+0x416/0x2e10 [ 69.552184][ C1] ? lock_acquire+0x190/0x410 [ 69.556835][ C1] __dev_queue_xmit+0x157e/0x3720 [ 69.561828][ C1] ? process_backlog+0x206/0x750 [ 69.566736][ C1] ? net_rx_action+0x508/0x1120 [ 69.571562][ C1] ? __do_softirq+0x262/0x98c [ 69.576222][ C1] ? do_softirq_own_stack+0x2a/0x40 [ 69.581402][ C1] ? do_softirq.part.0+0x11a/0x170 [ 69.586498][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 69.591758][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.597973][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.604102][ C1] ? rcu_read_lock_held+0x9c/0xb0 [ 69.609100][ C1] dev_queue_xmit+0x18/0x20 [ 69.613572][ C1] ? dev_queue_xmit+0x18/0x20 [ 69.618224][ C1] br_dev_queue_push_xmit+0x3f3/0x5e0 [ 69.623572][ C1] ? __skb_ext_del+0xb0/0x2c0 [ 69.628233][ C1] ? lock_downgrade+0x920/0x920 [ 69.633055][ C1] br_nf_dev_queue_xmit+0x34e/0x14b0 [ 69.638312][ C1] br_nf_post_routing+0x1502/0x1d30 [ 69.643485][ C1] ? br_nf_dev_queue_xmit+0x14b0/0x14b0 [ 69.649002][ C1] ? nf_bridge_update_protocol+0x1d0/0x1d0 [ 69.654783][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.660912][ C1] nf_hook_slow+0xbc/0x1e0 [ 69.665304][ C1] br_forward_finish+0x215/0x400 [ 69.670216][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 69.675732][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.681860][ C1] ? br_fdb_add.cold+0x83/0x83 [ 69.686594][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 69.692288][ C1] ? nf_hook_slow+0xf0/0x1e0 [ 69.696853][ C1] br_nf_hook_thresh+0x2e9/0x370 [ 69.701769][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 69.707297][ C1] ? setup_pre_routing+0x4b0/0x4b0 [ 69.712384][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 69.717914][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.724139][ C1] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 69.730004][ C1] br_nf_forward_finish+0x66c/0xa90 [ 69.735196][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 69.740715][ C1] br_nf_forward_ip+0xc74/0x21e0 [ 69.745651][ C1] ? br_nf_forward_arp+0x1670/0x1670 [ 69.750909][ C1] ? br_nf_hook_thresh+0x370/0x370 [ 69.755996][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.762125][ C1] nf_hook_slow+0xbc/0x1e0 [ 69.766514][ C1] __br_forward+0x393/0xb00 [ 69.770989][ C1] ? br_forward_finish+0x400/0x400 [ 69.776075][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 69.781593][ C1] deliver_clone+0x61/0xc0 [ 69.785979][ C1] br_flood+0x325/0x3d0 [ 69.790111][ C1] br_handle_frame_finish+0xb46/0x1670 [ 69.795542][ C1] ? br_handle_local_finish+0x20/0x20 [ 69.800899][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.807025][ C1] ? rcu_read_lock_held+0x9c/0xb0 [ 69.812024][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 69.817716][ C1] ? nf_hook_slow+0xf0/0x1e0 [ 69.822291][ C1] br_nf_hook_thresh+0x2e9/0x370 [ 69.827201][ C1] ? br_handle_local_finish+0x20/0x20 [ 69.832557][ C1] ? setup_pre_routing+0x4b0/0x4b0 [ 69.837641][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.843767][ C1] ? br_handle_local_finish+0x20/0x20 [ 69.849113][ C1] ? rcu_read_lock_held+0x9c/0xb0 [ 69.854129][ C1] ? rcu_read_lock_held_common+0x130/0x130 [ 69.859910][ C1] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 69.865774][ C1] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 69.871648][ C1] br_nf_pre_routing_finish_ipv6+0x6fa/0xdb0 [ 69.877605][ C1] ? br_handle_local_finish+0x20/0x20 [ 69.882954][ C1] ? __kasan_check_read+0x11/0x20 [ 69.887950][ C1] br_nf_pre_routing_ipv6+0x456/0x840 [ 69.893293][ C1] ? br_validate_ipv6+0xb80/0xb80 [ 69.898288][ C1] ? br_nf_pre_routing.cold+0x2f/0x2f [ 69.903669][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.909888][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 69.916101][ C1] ? skb_pull_rcsum+0x155/0x300 [ 69.920930][ C1] br_nf_pre_routing+0x18af/0x22d1 [ 69.926016][ C1] ? br_nf_pre_routing_finish+0x17a0/0x17a0 [ 69.931886][ C1] ? br_nf_pre_routing_finish+0x17a0/0x17a0 [ 69.937748][ C1] br_handle_frame+0x806/0x1340 [ 69.942574][ C1] ? br_handle_frame_finish+0x1670/0x1670 [ 69.948268][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 69.954395][ C1] ? br_handle_local_finish+0x20/0x20 [ 69.959738][ C1] ? rcu_read_lock_held_common+0x130/0x130 [ 69.965517][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.971729][ C1] ? br_handle_frame_finish+0x1670/0x1670 [ 69.977421][ C1] __netif_receive_skb_core+0xfc1/0x3060 [ 69.983025][ C1] ? __kasan_check_read+0x11/0x20 [ 69.988032][ C1] ? do_xdp_generic+0x50/0x50 [ 69.992682][ C1] ? __kasan_check_read+0x11/0x20 [ 69.997691][ C1] ? __lock_acquire+0x8a0/0x4a00 [ 70.002607][ C1] ? __kasan_check_read+0x11/0x20 [ 70.007610][ C1] __netif_receive_skb_one_core+0xa8/0x1a0 [ 70.013398][ C1] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 70.019356][ C1] ? __netif_receive_skb_core+0x3060/0x3060 [ 70.025227][ C1] ? lock_acquire+0x190/0x410 [ 70.029882][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.036109][ C1] __netif_receive_skb+0x2c/0x1d0 [ 70.041110][ C1] process_backlog+0x206/0x750 [ 70.045859][ C1] ? net_rx_action+0x27b/0x1120 [ 70.050696][ C1] ? lockdep_hardirqs_on+0x19e/0x5e0 [ 70.055956][ C1] net_rx_action+0x508/0x1120 [ 70.060605][ C1] ? napi_busy_loop+0x970/0x970 [ 70.065427][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 70.070951][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 70.076902][ C1] ? ip6_finish_output2+0x106d/0x2550 [ 70.082248][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.088463][ C1] __do_softirq+0x262/0x98c [ 70.092942][ C1] ? ip6_finish_output2+0x106d/0x2550 [ 70.098283][ C1] do_softirq_own_stack+0x2a/0x40 [ 70.103274][ C1] [ 70.106186][ C1] do_softirq.part.0+0x11a/0x170 [ 70.111096][ C1] __local_bh_enable_ip+0x211/0x270 [ 70.116263][ C1] ip6_finish_output2+0x10a0/0x2550 [ 70.121435][ C1] ? ip6_mtu+0x2e6/0x460 [ 70.125655][ C1] ? ip6_sk_dst_lookup_flow+0xb90/0xb90 [ 70.131174][ C1] ? lock_downgrade+0x920/0x920 [ 70.135998][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.142210][ C1] ? __kasan_check_read+0x11/0x20 [ 70.147207][ C1] __ip6_finish_output+0x444/0xaa0 [ 70.152289][ C1] ? __ip6_finish_output+0x444/0xaa0 [ 70.157552][ C1] ip6_finish_output+0x38/0x1f0 [ 70.162374][ C1] ip6_output+0x235/0x7f0 [ 70.166673][ C1] ? ip6_finish_output+0x1f0/0x1f0 [ 70.171756][ C1] ? __ip6_finish_output+0xaa0/0xaa0 [ 70.177015][ C1] ndisc_send_skb+0xf29/0x14a0 [ 70.181754][ C1] ? nf_hook.constprop.0+0x560/0x560 [ 70.187012][ C1] ? skb_set_owner_w+0x21b/0x320 [ 70.191927][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 70.197629][ C1] ndisc_send_ns+0x3a9/0x850 [ 70.202202][ C1] ? mark_held_locks+0xa4/0xf0 [ 70.206940][ C1] ? ndisc_netdev_event+0x4e0/0x4e0 [ 70.212113][ C1] ? lockdep_hardirqs_on+0x421/0x5e0 [ 70.217369][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 70.222538][ C1] ? trace_hardirqs_on+0x67/0x240 [ 70.227549][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 70.232733][ C1] addrconf_dad_work+0xb88/0x1150 [ 70.237737][ C1] ? addrconf_dad_completed+0xbb0/0xbb0 [ 70.243259][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 70.249217][ C1] ? trace_hardirqs_on+0x67/0x240 [ 70.254266][ C1] process_one_work+0x9af/0x1740 [ 70.259183][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 70.264530][ C1] ? lock_acquire+0x190/0x410 [ 70.269185][ C1] worker_thread+0x98/0xe40 [ 70.273666][ C1] kthread+0x361/0x430 [ 70.277706][ C1] ? process_one_work+0x1740/0x1740 [ 70.282879][ C1] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 70.288571][ C1] ret_from_fork+0x24/0x30 [ 70.293002][ C1] Modules linked in: [ 70.296974][ C1] ---[ end trace 882894a72a520299 ]--- [ 70.302455][ C1] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 70.308071][ C1] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 28 bf a2 fb 48 81 eb 00 10 00 00 eb a5 e8 1a bf a2 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 9f 1d de fb e9 0d ff ff [ 70.327733][ C1] RSP: 0018:ffff8880ae908b68 EFLAGS: 00010246 [ 70.333802][ C1] RAX: 0000000091f7c43e RBX: 0000000000000000 RCX: 0000000000000000 [ 70.341774][ C1] RDX: 0000000000000000 RSI: ffffffff85d06296 RDI: 0000000000000005 [ 70.349730][ C1] RBP: ffff8880ae908b90 R08: ffff8880a98fc480 R09: ffffed1013a38a2f [ 70.357704][ C1] R10: ffffed1013a38a2e R11: ffff88809d1c5177 R12: ffffffff80000000 [ 70.365700][ C1] R13: 0000000000000000 R14: 0000000091f7c43e R15: ffff88809d1c5000 [ 70.373674][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 70.382631][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.389187][ C1] CR2: 00005649f89a1110 CR3: 00000000a9697000 CR4: 00000000001406e0 [ 70.397160][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.405131][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.413104][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 70.421676][ C1] Kernel Offset: disabled [ 70.425991][ C1] Rebooting in 86400 seconds..