[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.683927][ T26] audit: type=1800 audit(1571697987.937:25): pid=8622 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 55.713135][ T26] audit: type=1800 audit(1571697987.937:26): pid=8622 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 55.752609][ T26] audit: type=1800 audit(1571697987.937:27): pid=8622 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 '10.128.0.240' (ECDSA) to the list of known hosts. syzkaller login: [ 64.686561][ T8776] IPVS: ftp: loaded support on port[0] = 21 [ 64.751682][ T8776] chnl_net:caif_netlink_parms(): no params data found [ 64.781152][ T8776] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.790269][ T8776] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.798361][ T8776] device bridge_slave_0 entered promiscuous mode [ 64.806690][ T8776] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.813958][ T8776] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.821690][ T8776] device bridge_slave_1 entered promiscuous mode [ 64.839951][ T8776] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.851268][ T8776] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.871332][ T8776] team0: Port device team_slave_0 added [ 64.879040][ T8776] team0: Port device team_slave_1 added [ 64.935596][ T8776] device hsr_slave_0 entered promiscuous mode [ 64.983435][ T8776] device hsr_slave_1 entered promiscuous mode [ 65.042667][ T8776] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.050016][ T8776] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.058039][ T8776] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.065288][ T8776] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.098386][ T8776] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.111917][ T3016] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.132231][ T3016] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.141261][ T3016] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.151095][ T3016] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.162863][ T8776] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.174530][ T3016] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.184516][ T3016] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.191566][ T3016] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.215310][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.225485][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.232543][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.241213][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.249949][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready executing program [ 65.258586][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.266874][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.276975][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.286425][ T8776] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.306831][ T8776] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.553486][ T22] divide error: 0000 [#1] PREEMPT SMP KASAN [ 65.559445][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc3+ #0 [ 65.566829][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.576985][ T22] Workqueue: ipv6_addrconf addrconf_dad_work [ 65.583048][ T22] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 65.588658][ T22] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 88 c2 a2 fb 48 81 eb 00 10 00 00 eb a5 e8 7a 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 ff 20 de fb e9 0d ff ff [ 65.608346][ T22] RSP: 0018:ffff8880a9a26d78 EFLAGS: 00010246 [ 65.614389][ T22] RAX: 000000006983d624 RBX: 0000000000000000 RCX: 0000000000000000 [ 65.622340][ T22] RDX: 0000000000000000 RSI: ffffffff85d05296 RDI: 0000000000000005 [ 65.630291][ T22] RBP: ffff8880a9a26da0 R08: ffff8880a9a0e5c0 R09: ffffed10134a982f [ 65.638250][ T22] R10: ffffed10134a982e R11: ffff88809a54c177 R12: ffffffff80000000 [ 65.646200][ T22] R13: 0000000000000000 R14: 000000006983d624 R15: ffff88809a54c000 [ 65.654151][ T22] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 65.663153][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.669857][ T22] CR2: 000055d5693cf0f0 CR3: 0000000099a36000 CR4: 00000000001406e0 [ 65.677807][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.685770][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.694138][ T22] Call Trace: [ 65.697554][ T22] netem_enqueue+0x416/0x2e10 [ 65.702234][ T22] ? lock_acquire+0x190/0x410 [ 65.706916][ T22] __dev_queue_xmit+0x157e/0x3720 [ 65.712061][ T22] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 65.718218][ T22] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 65.723491][ T22] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 65.729721][ T22] ? br_nf_post_routing+0xd73/0x1d30 [ 65.734987][ T22] ? br_forward_finish+0x235/0x400 [ 65.740089][ T22] ? find_held_lock+0x35/0x130 [ 65.744829][ T22] ? br_forward_finish+0x235/0x400 [ 65.749945][ T22] dev_queue_xmit+0x18/0x20 [ 65.754424][ T22] ? dev_queue_xmit+0x18/0x20 [ 65.759077][ T22] br_dev_queue_push_xmit+0x3f3/0x5e0 [ 65.764425][ T22] ? __kasan_check_read+0x11/0x20 [ 65.769438][ T22] br_forward_finish+0xfa/0x400 [ 65.774269][ T22] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 65.779808][ T22] ? br_fdb_add.cold+0x83/0x83 [ 65.784565][ T22] ? __kasan_check_read+0x11/0x20 [ 65.789687][ T22] __br_forward+0x641/0xb00 [ 65.794189][ T22] ? br_forward_finish+0x400/0x400 [ 65.799297][ T22] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 65.804915][ T22] deliver_clone+0x61/0xc0 [ 65.809333][ T22] maybe_deliver+0x2c7/0x390 [ 65.814921][ T22] br_flood+0x13a/0x3d0 [ 65.819070][ T22] br_dev_xmit+0x98c/0x15a0 [ 65.823725][ T22] ? br_poll_controller+0x10/0x10 [ 65.828829][ T22] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 65.835115][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.840660][ T22] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.847854][ T22] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.854177][ T22] dev_hard_start_xmit+0x1a3/0x9b0 [ 65.859289][ T22] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.865645][ T22] __dev_queue_xmit+0x2c6c/0x3720 [ 65.870692][ T22] ? __kasan_check_read+0x11/0x20 [ 65.875697][ T22] ? __lock_acquire+0x16f2/0x4a00 [ 65.880736][ T22] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 65.886016][ T22] ? ip6_finish_output2+0x1034/0x2550 [ 65.892148][ T22] ? __kasan_check_read+0x11/0x20 [ 65.897217][ T22] ? mark_lock+0xc2/0x1220 [ 65.901619][ T22] ? mark_held_locks+0xa4/0xf0 [ 65.906395][ T22] dev_queue_xmit+0x18/0x20 [ 65.910883][ T22] ? dev_queue_xmit+0x18/0x20 [ 65.915569][ T22] neigh_resolve_output+0x5a5/0x970 [ 65.920749][ T22] ip6_finish_output2+0x1034/0x2550 [ 65.925926][ T22] ? ip6_mtu+0x2e6/0x460 [ 65.930150][ T22] ? ip6_sk_dst_lookup_flow+0xb90/0xb90 [ 65.935707][ T22] ? lock_downgrade+0x920/0x920 [ 65.940548][ T22] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.946784][ T22] ? __kasan_check_read+0x11/0x20 [ 65.951789][ T22] __ip6_finish_output+0x444/0xaa0 [ 65.957833][ T22] ? __ip6_finish_output+0x444/0xaa0 [ 65.963196][ T22] ip6_finish_output+0x38/0x1f0 [ 65.968041][ T22] ip6_output+0x235/0x7f0 [ 65.972357][ T22] ? ip6_finish_output+0x1f0/0x1f0 [ 65.977457][ T22] ? __ip6_finish_output+0xaa0/0xaa0 [ 65.982726][ T22] ndisc_send_skb+0xf29/0x14a0 [ 65.987473][ T22] ? nf_hook.constprop.0+0x560/0x560 [ 65.992850][ T22] ? skb_set_owner_w+0x21b/0x320 [ 65.997774][ T22] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 66.003589][ T22] ndisc_send_ns+0x3a9/0x850 [ 66.008161][ T22] ? mark_held_locks+0xa4/0xf0 [ 66.012920][ T22] ? ndisc_netdev_event+0x4e0/0x4e0 [ 66.018183][ T22] ? lockdep_hardirqs_on+0x421/0x5e0 [ 66.023526][ T22] ? addrconf_dad_work+0xac4/0x1150 [ 66.028713][ T22] ? trace_hardirqs_on+0x67/0x240 [ 66.033717][ T22] ? addrconf_dad_work+0xac4/0x1150 [ 66.038902][ T22] addrconf_dad_work+0xb88/0x1150 [ 66.043921][ T22] ? addrconf_dad_completed+0xbb0/0xbb0 [ 66.049455][ T22] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.055411][ T22] ? trace_hardirqs_on+0x67/0x240 [ 66.060419][ T22] process_one_work+0x9af/0x1740 [ 66.065340][ T22] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.071132][ T22] ? lock_acquire+0x190/0x410 [ 66.075786][ T22] worker_thread+0x98/0xe40 [ 66.080263][ T22] ? trace_hardirqs_on+0x67/0x240 [ 66.085268][ T22] kthread+0x361/0x430 [ 66.089327][ T22] ? process_one_work+0x1740/0x1740 [ 66.094575][ T22] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 66.100271][ T22] ret_from_fork+0x24/0x30 [ 66.104658][ T22] Modules linked in: [ 66.108590][ T22] ---[ end trace 463c92d104b23e8c ]--- [ 66.114069][ T22] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 66.119693][ T22] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 88 c2 a2 fb 48 81 eb 00 10 00 00 eb a5 e8 7a 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 ff 20 de fb e9 0d ff ff [ 66.139464][ T22] RSP: 0018:ffff8880a9a26d78 EFLAGS: 00010246 [ 66.145537][ T22] RAX: 000000006983d624 RBX: 0000000000000000 RCX: 0000000000000000 [ 66.153512][ T22] RDX: 0000000000000000 RSI: ffffffff85d05296 RDI: 0000000000000005 [ 66.161470][ T22] RBP: ffff8880a9a26da0 R08: ffff8880a9a0e5c0 R09: ffffed10134a982f [ 66.169459][ T22] R10: ffffed10134a982e R11: ffff88809a54c177 R12: ffffffff80000000 [ 66.177434][ T22] R13: 0000000000000000 R14: 000000006983d624 R15: ffff88809a54c000 [ 66.185415][ T22] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 66.194783][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.201348][ T22] CR2: 000055d5693cf0f0 CR3: 0000000099a36000 CR4: 00000000001406e0 [ 66.209350][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.217357][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.225358][ T22] Kernel panic - not syncing: Fatal exception in interrupt [ 66.234321][ T22] Kernel Offset: disabled [ 66.238660][ T22] Rebooting in 86400 seconds..