IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready 8021q: adding VLAN 0 to HW filter on device batadv0 divide error: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: ipv6_addrconf addrconf_dad_work task: ffff8880a9ecc640 task.stack: ffff8880a9ed8000 RIP: 0010:packet_len_2_sched_time net/sched/sch_netem.c:352 [inline] RIP: 0010:netem_enqueue+0x976/0x27b0 net/sched/sch_netem.c:561 RSP: 0018:ffff8880aec06e10 EFLAGS: 00010246 RAX: 1aedcbe189692000 RBX: 0000000073a8a150 RCX: 000000000000001e RDX: 0000000000000000 RSI: 0000000000002056 RDI: ffff88809b915468 RBP: ffff8880aec06ea0 R08: 000000001cf06adb R09: ffff88821fff7008 R10: ffff88821fff7010 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000073000000 R15: ffff88809b915200 FS: 0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 0000000007e6a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_xmit_skb net/core/dev.c:3229 [inline] __dev_queue_xmit+0x12da/0x25e0 net/core/dev.c:3493 dev_queue_xmit+0x18/0x20 net/core/dev.c:3558 br_dev_queue_push_xmit+0x367/0x530 net/bridge/br_forward.c:55 br_nf_dev_queue_xmit+0x309/0x1440 net/bridge/br_netfilter_hooks.c:776 NF_HOOK include/linux/netfilter.h:250 [inline] NF_HOOK include/linux/netfilter.h:244 [inline] br_nf_post_routing+0xb80/0xf00 net/bridge/br_netfilter_hooks.c:822 nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline] nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467 nf_hook include/linux/netfilter.h:205 [inline] NF_HOOK include/linux/netfilter.h:248 [inline] br_forward_finish+0x1b7/0x320 net/bridge/br_forward.c:67 br_nf_hook_thresh+0x25b/0x2e0 net/bridge/br_netfilter_hooks.c:1005 br_nf_forward_finish+0x264/0x640 net/bridge/br_netfilter_hooks.c:550 NF_HOOK include/linux/netfilter.h:250 [inline] NF_HOOK include/linux/netfilter.h:244 [inline] br_nf_forward_ip net/bridge/br_netfilter_hooks.c:617 [inline] br_nf_forward_ip+0x5fc/0x1190 net/bridge/br_netfilter_hooks.c:561 nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline] nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467 nf_hook include/linux/netfilter.h:205 [inline] NF_HOOK include/linux/netfilter.h:248 [inline] __br_forward+0x312/0x9c0 net/bridge/br_forward.c:111 deliver_clone+0x61/0xc0 net/bridge/br_forward.c:127 br_flood+0x43c/0x530 net/bridge/br_forward.c:222 br_handle_frame_finish+0xaf0/0x1800 net/bridge/br_input.c:210 br_nf_hook_thresh+0x25b/0x2e0 net/bridge/br_netfilter_hooks.c:1005 br_nf_pre_routing_finish_ipv6+0x621/0xc50 net/bridge/br_netfilter_ipv6.c:210 NF_HOOK include/linux/netfilter.h:250 [inline] br_nf_pre_routing_ipv6+0x419/0x7a0 net/bridge/br_netfilter_ipv6.c:240 br_nf_pre_routing+0xdd0/0x12c5 net/bridge/br_netfilter_hooks.c:491 nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline] nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467 nf_hook include/linux/netfilter.h:205 [inline] NF_HOOK include/linux/netfilter.h:248 [inline] br_handle_frame+0x80c/0x1110 net/bridge/br_input.c:348 __netif_receive_skb_core+0x78d/0x2cb0 net/core/dev.c:4431 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4515 process_backlog+0x21f/0x730 net/core/dev.c:5197 napi_poll net/core/dev.c:5598 [inline] net_rx_action+0x490/0xf80 net/core/dev.c:5664 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1015 do_softirq.part.0+0x10e/0x160 kernel/softirq.c:332 do_softirq kernel/softirq.c:324 [inline] __local_bh_enable_ip+0x154/0x1a0 kernel/softirq.c:185 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:725 [inline] ip6_finish_output2+0x9f3/0x21b0 net/ipv6/ip6_output.c:121 ip6_finish_output+0x4f4/0xb50 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip6_output+0x20f/0x6d0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:462 [inline] NF_HOOK include/linux/netfilter.h:250 [inline] ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483 ndisc_send_ns+0x360/0x7e0 net/ipv6/ndisc.c:625 addrconf_dad_work+0xa81/0xfc0 net/ipv6/addrconf.c:3996 process_one_work+0x863/0x1600 kernel/workqueue.c:2114 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 85 4d 1c 00 00 45 8b b7 5c 02 00 00 89 f3 89 75 c0 45 85 f6 0f 85 5f 0a 00 00 e8 b6 7d 29 fc 48 69 c3 00 ca 9a 3b 45 89 e4 31 d2 <49> f7 f4 48 c1 e8 06 48 01 45 b8 e8 9a 7d 29 fc 48 8b 45 d0 48 RIP: packet_len_2_sched_time net/sched/sch_netem.c:352 [inline] RSP: ffff8880aec06e10 RIP: netem_enqueue+0x976/0x27b0 net/sched/sch_netem.c:561 RSP: ffff8880aec06e10 ---[ end trace b20f88a4b87f0761 ]---