[ 41.770882][ T26] audit: type=1800 audit(1571972078.901:25): pid=7740 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 41.798247][ T26] audit: type=1800 audit(1571972078.901:26): pid=7740 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 41.844985][ T26] audit: type=1800 audit(1571972078.911:27): pid=7740 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 41.875991][ T26] audit: type=1800 audit(1571972078.911:28): pid=7740 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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 '10.128.0.120' (ECDSA) to the list of known hosts. syzkaller login: [ 51.933114][ T7891] IPVS: ftp: loaded support on port[0] = 21 [ 51.986163][ T7891] chnl_net:caif_netlink_parms(): no params data found [ 52.010878][ T7891] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.018470][ T7891] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.026305][ T7891] device bridge_slave_0 entered promiscuous mode [ 52.034261][ T7891] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.041561][ T7891] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.049154][ T7891] device bridge_slave_1 entered promiscuous mode [ 52.064256][ T7891] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.074803][ T7891] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.092712][ T7891] team0: Port device team_slave_0 added [ 52.100243][ T7891] team0: Port device team_slave_1 added [ 52.170262][ T7891] device hsr_slave_0 entered promiscuous mode [ 52.238303][ T7891] device hsr_slave_1 entered promiscuous mode [ 52.295165][ T7891] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.302459][ T7891] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.310412][ T7891] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.317562][ T7891] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.346089][ T7891] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.358806][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.378924][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.387048][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.395523][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.406505][ T7891] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.416920][ T2610] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.425525][ T2610] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.432687][ T2610] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.448505][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.457101][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.464238][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.472263][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.484150][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 52.492274][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.504227][ T2610] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.515128][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.524760][ T7891] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.540958][ T7891] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.718177][ C1] divide error: 0000 [#1] PREEMPT SMP KASAN [ 52.724115][ C1] CPU: 1 PID: 2610 Comm: kworker/1:2 Not tainted 5.4.0-rc4+ #0 [ 52.731780][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.741834][ C1] Workqueue: events iterate_cleanup_work [ 52.747448][ C1] RIP: 0010:netem_enqueue+0x1a63/0x33b0 [ 52.753146][ C1] Code: 12 00 00 45 89 26 4c 8b 75 d0 4c 8b 7d b0 48 8b 5d b8 48 85 db 0f 85 25 01 00 00 e8 17 bf 70 fb 43 8d 4c 2d 00 44 89 e0 31 d2 f1 49 63 c5 4c 8b 6d c8 49 29 c5 49 01 d5 e9 be 01 00 00 e8 f4 [ 52.772752][ C1] RSP: 0018:ffff8880aeb090d0 EFLAGS: 00010246 [ 52.778796][ C1] RAX: 00000000a3098912 RBX: 0000000000000000 RCX: 0000000000000000 [ 52.786833][ C1] RDX: 0000000000000000 RSI: 0000000080000302 RDI: 0000000000000000 [ 52.794788][ C1] RBP: ffff8880aeb09178 R08: ffffffff83425523 R09: ffffffff86026117 [ 52.802739][ C1] R10: ffff8880a15fa040 R11: 0000000000000003 R12: 00000000a3098912 [ 52.810702][ C1] R13: 0000000080000000 R14: ffff88808c899000 R15: ffff88808c8992c0 [ 52.818716][ C1] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 52.827892][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.834632][ C1] CR2: 00000000004c75a8 CR3: 000000000886d000 CR4: 00000000001406e0 [ 52.842599][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.850551][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.858504][ C1] Call Trace: [ 52.861768][ C1] [ 52.864611][ C1] __dev_queue_xmit+0x1121/0x3010 [ 52.869636][ C1] dev_queue_xmit+0x17/0x20 [ 52.874207][ C1] br_dev_queue_push_xmit+0x551/0x640 [ 52.879559][ C1] br_nf_dev_queue_xmit+0x312/0x1570 [ 52.884823][ C1] br_nf_post_routing+0xa5f/0xea0 [ 52.889832][ C1] ? br_nf_forward_arp+0xab0/0xab0 [ 52.894922][ C1] nf_hook_slow+0xc8/0x210 [ 52.899317][ C1] nf_hook+0x23a/0x310 [ 52.903367][ C1] ? fdb_add_hw_addr+0x220/0x220 [ 52.908297][ C1] br_forward_finish+0x7a/0xc0 [ 52.913055][ C1] ? fdb_add_hw_addr+0x220/0x220 [ 52.917980][ C1] br_nf_forward_finish+0x8f4/0xc80 [ 52.923161][ C1] ? rcu_lock_release+0x26/0x30 [ 52.928006][ C1] ? br_dev_queue_push_xmit+0x640/0x640 [ 52.933544][ C1] br_nf_forward_ip+0xed4/0x13f0 [ 52.938467][ C1] ? br_nf_pre_routing+0x13d0/0x13d0 [ 52.943733][ C1] nf_hook_slow+0xc8/0x210 [ 52.948145][ C1] nf_hook+0x23a/0x310 [ 52.952204][ C1] ? br_dev_queue_push_xmit+0x640/0x640 [ 52.957730][ C1] __br_forward+0x39e/0x720 [ 52.963864][ C1] ? br_dev_queue_push_xmit+0x640/0x640 [ 52.969392][ C1] br_flood+0x7af/0x840 [ 52.973533][ C1] br_handle_frame_finish+0xf37/0x1370 [ 52.978987][ C1] ? nf_hook_slow+0x17d/0x210 [ 52.983665][ C1] br_nf_hook_thresh+0x306/0x390 [ 52.988587][ C1] ? brport_get_ownership+0x80/0x80 [ 52.993767][ C1] br_nf_pre_routing_finish_ipv6+0x8d7/0xb30 [ 52.999811][ C1] ? brport_get_ownership+0x80/0x80 [ 53.004994][ C1] br_nf_pre_routing_ipv6+0x2ab/0x350 [ 53.010356][ C1] br_nf_pre_routing+0x6dc/0x13d0 [ 53.015362][ C1] ? brnf_device_event+0x1f0/0x1f0 [ 53.020453][ C1] br_handle_frame+0x7d9/0xeb0 [ 53.025302][ C1] ? brport_get_ownership+0x80/0x80 [ 53.030479][ C1] ? br_pass_frame_up+0x4b0/0x4b0 [ 53.035486][ C1] __netif_receive_skb_core+0x1a7d/0x3470 [ 53.041563][ C1] __netif_receive_skb+0xc5/0x370 [ 53.046571][ C1] process_backlog+0x4d8/0x910 [ 53.051328][ C1] net_rx_action+0x5ef/0x10d0 [ 53.056026][ C1] __do_softirq+0x333/0x7c4 [ 53.060511][ C1] ? do_softirq_own_stack+0x2a/0x40 [ 53.065781][ C1] do_softirq_own_stack+0x2a/0x40 [ 53.071647][ C1] [ 53.074568][ C1] do_softirq+0xfd/0x190 [ 53.078793][ C1] ? local_bh_enable+0x9/0x30 [ 53.083450][ C1] __local_bh_enable_ip+0x194/0x240 [ 53.088906][ C1] local_bh_enable+0x1f/0x30 [ 53.093476][ C1] nf_ct_iterate_cleanup+0x2fa/0x390 [ 53.098738][ C1] ? nf_ct_iterate_cleanup+0x390/0x390 [ 53.104177][ C1] ? iterate_cleanup_work+0xc0/0xc0 [ 53.109369][ C1] nf_ct_iterate_cleanup_net+0xf9/0x150 [ 53.117564][ C1] ? iterate_cleanup_work+0xc0/0xc0 [ 53.122765][ C1] iterate_cleanup_work+0x4f/0xc0 [ 53.127775][ C1] process_one_work+0x7ef/0x10e0 [ 53.132697][ C1] worker_thread+0xc01/0x1630 [ 53.137391][ C1] kthread+0x332/0x350 [ 53.141452][ C1] ? rcu_lock_release+0x30/0x30 [ 53.146283][ C1] ? kthread_blkcg+0xe0/0xe0 [ 53.150970][ C1] ret_from_fork+0x24/0x30 [ 53.155375][ C1] Modules linked in: [ 53.159395][ C1] ---[ end trace e95dc111632d8cea ]--- [ 53.164836][ C1] RIP: 0010:netem_enqueue+0x1a63/0x33b0 [ 53.170374][ C1] Code: 12 00 00 45 89 26 4c 8b 75 d0 4c 8b 7d b0 48 8b 5d b8 48 85 db 0f 85 25 01 00 00 e8 17 bf 70 fb 43 8d 4c 2d 00 44 89 e0 31 d2 f1 49 63 c5 4c 8b 6d c8 49 29 c5 49 01 d5 e9 be 01 00 00 e8 f4 [ 53.189974][ C1] RSP: 0018:ffff8880aeb090d0 EFLAGS: 00010246 [ 53.196018][ C1] RAX: 00000000a3098912 RBX: 0000000000000000 RCX: 0000000000000000 [ 53.204003][ C1] RDX: 0000000000000000 RSI: 0000000080000302 RDI: 0000000000000000 [ 53.211984][ C1] RBP: ffff8880aeb09178 R08: ffffffff83425523 R09: ffffffff86026117 [ 53.219952][ C1] R10: ffff8880a15fa040 R11: 0000000000000003 R12: 00000000a3098912 [ 53.228177][ C1] R13: 0000000080000000 R14: ffff88808c899000 R15: ffff88808c8992c0 [ 53.236131][ C1] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 53.245073][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.251665][ C1] CR2: 00000000004c75a8 CR3: 000000000886d000 CR4: 00000000001406e0 [ 53.259720][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.267759][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.275952][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 53.285020][ C1] Kernel Offset: disabled [ 53.289381][ C1] Rebooting in 86400 seconds..