[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.453561][ T26] audit: type=1800 audit(1571698032.013:25): pid=8680 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.499028][ T26] audit: type=1800 audit(1571698032.013:26): pid=8680 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.540480][ T26] audit: type=1800 audit(1571698032.023:27): pid=8680 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 '10.128.0.115' (ECDSA) to the list of known hosts. syzkaller login: [ 66.215071][ T8833] IPVS: ftp: loaded support on port[0] = 21 [ 66.280740][ T8833] chnl_net:caif_netlink_parms(): no params data found [ 66.308207][ T8833] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.316633][ T8833] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.325274][ T8833] device bridge_slave_0 entered promiscuous mode [ 66.334304][ T8833] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.342883][ T8833] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.351697][ T8833] device bridge_slave_1 entered promiscuous mode [ 66.368987][ T8833] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.381646][ T8833] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.401596][ T8833] team0: Port device team_slave_0 added [ 66.409132][ T8833] team0: Port device team_slave_1 added [ 66.492161][ T8833] device hsr_slave_0 entered promiscuous mode [ 66.550457][ T8833] device hsr_slave_1 entered promiscuous mode [ 66.619526][ T8833] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.628389][ T8833] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.636838][ T8833] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.645524][ T8833] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.679623][ T8833] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.697936][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.710537][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.719078][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.727849][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.742765][ T8833] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.753667][ T2875] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.762788][ T2875] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.770310][ T2875] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.790447][ T2875] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.798993][ T2875] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.806991][ T2875] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.818896][ T8836] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.828923][ T8836] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.846588][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.855999][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.866099][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 66.878051][ T8833] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.899898][ T8833] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.070438][ C0] divide error: 0000 [#1] PREEMPT SMP KASAN [ 67.076990][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc4 #0 [ 67.084330][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.095389][ C0] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 67.101234][ C0] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 b8 c2 a2 fb 48 81 eb 00 10 00 00 eb a5 e8 aa c2 a2 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 2f 21 de fb e9 0d ff ff [ 67.122025][ C0] RSP: 0018:ffff8880a98ae9c8 EFLAGS: 00010246 [ 67.128089][ C0] RAX: 00000000ceaeae76 RBX: 0000000000000000 RCX: 0000000000000000 [ 67.136145][ C0] RDX: 0000000000000000 RSI: ffffffff85d05296 RDI: 0000000000000005 [ 67.144802][ C0] RBP: ffff8880a98ae9f0 R08: ffff8880a98a2240 R09: ffffed1014f6f82f [ 67.153178][ C0] R10: ffffed1014f6f82e R11: ffff8880a7b7c177 R12: ffffffff80000000 [ 67.161265][ C0] R13: 0000000000000000 R14: 00000000ceaeae76 R15: ffff8880a7b7c000 [ 67.169322][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.178415][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.184992][ C0] CR2: 0000555bf6cfa0f0 CR3: 0000000099e68000 CR4: 00000000001406f0 [ 67.193046][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.202490][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.210650][ C0] Call Trace: [ 67.213954][ C0] netem_enqueue+0x416/0x2e10 [ 67.218810][ C0] ? lock_acquire+0x190/0x410 [ 67.223607][ C0] __dev_queue_xmit+0x157e/0x3720 [ 67.228817][ C0] ? process_backlog+0x206/0x750 [ 67.234038][ C0] ? net_rx_action+0x508/0x1120 [ 67.238977][ C0] ? __do_softirq+0x262/0x98c [ 67.243712][ C0] ? run_ksoftirqd+0x8e/0x110 [ 67.248459][ C0] ? smpboot_thread_fn+0x6a3/0xa40 [ 67.253568][ C0] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 67.258843][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.265248][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.271421][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 67.276605][ C0] dev_queue_xmit+0x18/0x20 [ 67.281101][ C0] ? dev_queue_xmit+0x18/0x20 [ 67.285766][ C0] br_dev_queue_push_xmit+0x3f3/0x5e0 [ 67.291396][ C0] ? __skb_ext_del+0xb0/0x2c0 [ 67.296066][ C0] ? lock_downgrade+0x920/0x920 [ 67.301057][ C0] br_nf_dev_queue_xmit+0x34e/0x14b0 [ 67.306649][ C0] br_nf_post_routing+0x1502/0x1d30 [ 67.312085][ C0] ? br_nf_dev_queue_xmit+0x14b0/0x14b0 [ 67.317871][ C0] ? nf_bridge_update_protocol+0x1d0/0x1d0 [ 67.323996][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.330169][ C0] nf_hook_slow+0xbc/0x1e0 [ 67.334608][ C0] br_forward_finish+0x215/0x400 [ 67.339578][ C0] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 67.345413][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.351570][ C0] ? br_fdb_add.cold+0x83/0x83 [ 67.356634][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 67.362675][ C0] ? nf_hook_slow+0xf0/0x1e0 [ 67.367263][ C0] br_nf_hook_thresh+0x2e9/0x370 [ 67.372537][ C0] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 67.378237][ C0] ? setup_pre_routing+0x4b0/0x4b0 [ 67.383488][ C0] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 67.389210][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.395724][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 67.401924][ C0] br_nf_forward_finish+0x66c/0xa90 [ 67.407133][ C0] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 67.413200][ C0] br_nf_forward_ip+0xc74/0x21e0 [ 67.418660][ C0] ? br_nf_forward_arp+0x1670/0x1670 [ 67.424116][ C0] ? br_nf_hook_thresh+0x370/0x370 [ 67.429227][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.435549][ C0] nf_hook_slow+0xbc/0x1e0 [ 67.439965][ C0] __br_forward+0x393/0xb00 [ 67.444465][ C0] ? br_forward_finish+0x400/0x400 [ 67.449573][ C0] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 67.455228][ C0] deliver_clone+0x61/0xc0 [ 67.460445][ C0] br_flood+0x325/0x3d0 [ 67.464609][ C0] br_handle_frame_finish+0xb46/0x1670 [ 67.470297][ C0] ? br_handle_local_finish+0x20/0x20 [ 67.475679][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.481920][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 67.487028][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 67.492855][ C0] ? nf_hook_slow+0xf0/0x1e0 [ 67.497545][ C0] br_nf_hook_thresh+0x2e9/0x370 [ 67.502495][ C0] ? br_handle_local_finish+0x20/0x20 [ 67.508278][ C0] ? setup_pre_routing+0x4b0/0x4b0 [ 67.513383][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.519534][ C0] ? br_handle_local_finish+0x20/0x20 [ 67.524900][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 67.530145][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 67.536051][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 67.541937][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 67.548134][ C0] br_nf_pre_routing_finish_ipv6+0x6fa/0xdb0 [ 67.554251][ C0] ? br_handle_local_finish+0x20/0x20 [ 67.559642][ C0] ? __kasan_check_read+0x11/0x20 [ 67.564664][ C0] br_nf_pre_routing_ipv6+0x456/0x840 [ 67.570398][ C0] ? br_validate_ipv6+0xb80/0xb80 [ 67.575497][ C0] ? br_nf_pre_routing.cold+0x2f/0x2f [ 67.580877][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.587133][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 67.593556][ C0] ? skb_pull_rcsum+0x155/0x300 [ 67.598537][ C0] br_nf_pre_routing+0x18af/0x22d1 [ 67.603851][ C0] ? br_nf_pre_routing_finish+0x17a0/0x17a0 [ 67.609835][ C0] ? br_nf_pre_routing_finish+0x17a0/0x17a0 [ 67.615811][ C0] br_handle_frame+0x806/0x1340 [ 67.620691][ C0] ? br_handle_frame_finish+0x1670/0x1670 [ 67.626562][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.632715][ C0] ? br_handle_local_finish+0x20/0x20 [ 67.638080][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 67.644010][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.650244][ C0] ? br_handle_frame_finish+0x1670/0x1670 [ 67.656105][ C0] __netif_receive_skb_core+0xfc1/0x3060 [ 67.661743][ C0] ? __kasan_check_read+0x11/0x20 [ 67.666766][ C0] ? do_xdp_generic+0x50/0x50 [ 67.671660][ C0] ? __kasan_check_read+0x11/0x20 [ 67.676682][ C0] ? __lock_acquire+0x8a0/0x4a00 [ 67.681617][ C0] __netif_receive_skb_one_core+0xa8/0x1a0 [ 67.687522][ C0] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 67.693503][ C0] ? __netif_receive_skb_core+0x3060/0x3060 [ 67.699548][ C0] ? lock_acquire+0x190/0x410 [ 67.704322][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.710560][ C0] __netif_receive_skb+0x2c/0x1d0 [ 67.715725][ C0] process_backlog+0x206/0x750 [ 67.720531][ C0] ? net_rx_action+0x27b/0x1120 [ 67.725377][ C0] ? lockdep_hardirqs_on+0x19e/0x5e0 [ 67.730656][ C0] net_rx_action+0x508/0x1120 [ 67.735329][ C0] ? napi_busy_loop+0x970/0x970 [ 67.740307][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 67.745895][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.751931][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.758167][ C0] __do_softirq+0x262/0x98c [ 67.762670][ C0] ? takeover_tasklets+0x820/0x820 [ 67.767783][ C0] run_ksoftirqd+0x8e/0x110 [ 67.772287][ C0] smpboot_thread_fn+0x6a3/0xa40 [ 67.777223][ C0] ? smpboot_register_percpu_thread+0x390/0x390 [ 67.783554][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 67.789811][ C0] ? __kthread_parkme+0x108/0x1c0 [ 67.794829][ C0] ? __kasan_check_read+0x11/0x20 [ 67.799979][ C0] kthread+0x361/0x430 [ 67.804043][ C0] ? smpboot_register_percpu_thread+0x390/0x390 [ 67.810426][ C0] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 67.816276][ C0] ret_from_fork+0x24/0x30 [ 67.820750][ C0] Modules linked in: [ 67.824928][ C0] ---[ end trace 071b507f624436e5 ]--- [ 67.830419][ C0] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 67.836271][ C0] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 b8 c2 a2 fb 48 81 eb 00 10 00 00 eb a5 e8 aa c2 a2 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 2f 21 de fb e9 0d ff ff [ 67.856322][ C0] RSP: 0018:ffff8880a98ae9c8 EFLAGS: 00010246 [ 67.862463][ C0] RAX: 00000000ceaeae76 RBX: 0000000000000000 RCX: 0000000000000000 [ 67.870494][ C0] RDX: 0000000000000000 RSI: ffffffff85d05296 RDI: 0000000000000005 [ 67.878458][ C0] RBP: ffff8880a98ae9f0 R08: ffff8880a98a2240 R09: ffffed1014f6f82f [ 67.886448][ C0] R10: ffffed1014f6f82e R11: ffff8880a7b7c177 R12: ffffffff80000000 [ 67.894482][ C0] R13: 0000000000000000 R14: 00000000ceaeae76 R15: ffff8880a7b7c000 [ 67.902523][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.911459][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.918031][ C0] CR2: 0000555bf6cfa0f0 CR3: 0000000099e68000 CR4: 00000000001406f0 [ 67.926019][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.934391][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.942663][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 67.951419][ C0] Kernel Offset: disabled [ 67.956382][ C0] Rebooting in 86400 seconds..