IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready batman_adv: batadv0: Interface activated: batadv_slave_1 IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [kworker/1:1:33] Modules linked in: irq event stamp: 55240811 hardirqs last enabled at (55240810): [] seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] hardirqs last enabled at (55240810): [] read_seqcount_begin include/linux/seqlock.h:164 [inline] hardirqs last enabled at (55240810): [] ktime_get+0x235/0x2f0 kernel/time/timekeeping.c:756 hardirqs last disabled at (55240811): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (53946): [] icmp6_dst_alloc+0x3de/0x660 net/ipv6/route.c:2750 softirqs last disabled at (53948): [] lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline] softirqs last disabled at (53948): [] ip6_finish_output2+0x1f2/0x2290 net/ipv6/ip6_output.c:106 CPU: 1 PID: 33 Comm: kworker/1:1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100 Code: e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880b510ec38 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 00000000ffffb99c RBX: ffff88809a7ee080 RCX: ffffffff868c9678 RDX: 00000000ffffb99c RSI: ffffffff868c968a RDI: 0000000000000007 RBP: ffff8880a54fc400 R08: 0000000000000088 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff8c66505b R12: 1ffff11016a21d8d R13: ffff8880a54fc428 R14: ffff88809a7ee0f0 R15: 00000000ffffc322 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 00000000b0cc0000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcf_police_act+0x2fa/0xe60 net/sched/act_police.c:221 tcf_action_exec net/sched/act_api.c:618 [inline] tcf_action_exec+0x160/0x400 net/sched/act_api.c:598 tcf_exts_exec include/net/pkt_cls.h:388 [inline] basic_classify+0x184/0x2b0 net/sched/cls_basic.c:52 tcf_classify+0x120/0x3c0 net/sched/cls_api.c:979 prio_classify net/sched/sch_prio.c:46 [inline] prio_enqueue+0x3bb/0x7a0 net/sched/sch_prio.c:78 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x140a/0x2e00 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip_finish_output2+0xb6d/0x15a0 net/ipv4/ip_output.c:230 ip_finish_output+0xae9/0x10b0 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip_output+0x203/0x5f0 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:455 [inline] ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125 iptunnel_xmit+0x63b/0x9d0 net/ipv4/ip_tunnel_core.c:91 geneve_xmit_skb drivers/net/geneve.c:867 [inline] geneve_xmit+0x120d/0x2e60 drivers/net/geneve.c:943 __netdev_start_xmit include/linux/netdevice.h:4349 [inline] netdev_start_xmit include/linux/netdevice.h:4363 [inline] xmit_one net/core/dev.c:3256 [inline] dev_hard_start_xmit+0x1a8/0x920 net/core/dev.c:3272 __dev_queue_xmit+0x269d/0x2e00 net/core/dev.c:3838 neigh_resolve_output+0x55a/0x910 net/core/neighbour.c:1374 neigh_output include/net/neighbour.h:501 [inline] ip6_finish_output2+0x113d/0x2290 net/ipv6/ip6_output.c:120 ip6_finish_output+0x89b/0x10f0 net/ipv6/ip6_output.c:192 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x205/0x770 net/ipv6/ip6_output.c:209 dst_output include/net/dst.h:455 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] ndisc_send_skb+0xa24/0x1720 net/ipv6/ndisc.c:491 ndisc_send_ns+0x51d/0x840 net/ipv6/ndisc.c:633 addrconf_dad_work+0xb0e/0x10a0 net/ipv6/addrconf.c:4076 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415