======================================
| [  519.868090][T11790] br1: port 2(vxlan1) entered forwarding state
| [  520.047744][    C2] ------------[ cut here ]------------
| [  520.048067][    C2] WARNING: ./include/linux/skbuff.h:3094 at udp_tun_rx_dst+0xa92/0x1060, CPU#2: 2/63
| [  520.048879][    C2] Modules linked in: vxlan unix_diag cls_bpf sch_ingress bonding xfrm_user l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6 sctp_diag sctp [last unloaded: test_bpf]
[  520.050075][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  520.050300][    C2] Workqueue: mld mld_ifc_work
[  520.050510][    C2] RIP: 0010:udp_tun_rx_dst (./include/linux/skbuff.h:3094 (discriminator 4) ./include/linux/udp.h:23 (discriminator 4) net/ipv4/udp_tunnel_core.c:217 (discriminator 4))
[  520.050733][    C2] Code: 24 18 4c 89 44 24 20 e8 4c 6b 74 fe 4c 8b 44 24 20 49 0f ba 28 08 4c 8b 4c 24 18 e9 c0 f9 ff ff 90 0f 0b 90 e9 7d fb ff ff 90 <0f> 0b 90 e9 f1 f9 ff ff 90 0f 0b 90 e9 a7 fa ff ff 44 89 44 24 18
All code
========
   0:	24 18                	and    $0x18,%al
   2:	4c 89 44 24 20       	mov    %r8,0x20(%rsp)
   7:	e8 4c 6b 74 fe       	call   0xfffffffffe746b58
   c:	4c 8b 44 24 20       	mov    0x20(%rsp),%r8
  11:	49 0f ba 28 08       	btsq   $0x8,(%r8)
  16:	4c 8b 4c 24 18       	mov    0x18(%rsp),%r9
  1b:	e9 c0 f9 ff ff       	jmp    0xfffffffffffff9e0
  20:	90                   	nop
  21:	0f 0b                	ud2
  23:	90                   	nop
  24:	e9 7d fb ff ff       	jmp    0xfffffffffffffba6
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 f1 f9 ff ff       	jmp    0xfffffffffffffa23
  32:	90                   	nop
  33:	0f 0b                	ud2
  35:	90                   	nop
  36:	e9 a7 fa ff ff       	jmp    0xfffffffffffffae2
  3b:	44 89 44 24 18       	mov    %r8d,0x18(%rsp)

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 f1 f9 ff ff       	jmp    0xfffffffffffff9f9
   8:	90                   	nop
   9:	0f 0b                	ud2
   b:	90                   	nop
   c:	e9 a7 fa ff ff       	jmp    0xfffffffffffffab8
  11:	44 89 44 24 18       	mov    %r8d,0x18(%rsp)
[  520.051276][    C2] RSP: 0018:ffa0000000228648 EFLAGS: 00010246
[  520.051514][    C2] RAX: 0000000000000007 RBX: 000000000000ffff RCX: 0000000000000000
[  520.051782][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ffa9024
[  520.052038][    C2] RBP: ffa00000002286a0 R08: ff1100002067eec8 R09: ff11000025030e40
[  520.052292][    C2] R10: ffe21c00040cfddc R11: ffe21c00040cfddc R12: ff1100002067eedc
[  520.052557][    C2] R13: ff1100002067eeda R14: ff11000025030ef6 R15: ff1100002067ee00
[  520.052822][    C2] FS:  0000000000000000(0000) GS:ff110000ae9b0000(0000) knlGS:0000000000000000
[  520.053115][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  520.053337][    C2] CR2: 000055efa570ed5c CR3: 000000001d33c001 CR4: 0000000000771ef0
[  520.053605][    C2] PKRU: 55555554
[  520.053765][    C2] Call Trace:
[  520.053921][    C2]  <IRQ>
[  520.054042][    C2] vxlan_rcv (drivers/net/vxlan/vxlan_core.c:1729 (discriminator 2)) vxlan
[  520.054240][    C2]  ? fib_table_lookup (net/ipv4/fib_trie.c:1613)
[  520.054440][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.054634][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.054867][    C2]  ? udp4_lib_lookup2 (./include/net/net_namespace.h:419 (discriminator 1) ./include/net/sock.h:713 (discriminator 1) net/ipv4/udp.c:370 (discriminator 1) net/ipv4/udp.c:474 (discriminator 1))
[  520.055058][    C2]  ? __udp4_lib_lookup (net/ipv4/udp.c:713)
[  520.055254][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.055491][    C2]  ? udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.055687][    C2]  udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.055873][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.056058][    C2]  ? ww_mutex_trylock (kernel/locking/mutex.c:107 (discriminator 3) kernel/locking/mutex.c:134 (discriminator 3) kernel/locking/mutex.c:860 (discriminator 3))
[  520.056248][    C2]  udp_unicast_rcv_skb (net/ipv4/udp.c:2574)
[  520.056450][    C2]  ? udp_rcv (net/ipv4/udp.c:741 (discriminator 3) net/ipv4/udp.c:2649 (discriminator 3))
[  520.056604][    C2]  udp_rcv (net/ipv4/udp.c:2651)
[  520.056768][    C2]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2451 (discriminator 1))
[  520.056961][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.057148][    C2]  ? ip_local_deliver_finish (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) net/ipv4/ip_input.c:240 (discriminator 2))
[  520.057348][    C2]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207)
[  520.057544][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.057735][    C2]  ip_local_deliver_finish (net/ipv4/ip_input.c:241 (discriminator 1))
[  520.057923][    C2]  ip_local_deliver (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:262)
[  520.058110][    C2]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42))
[  520.058303][    C2]  ? ip_rcv_finish_core (./include/linux/skbuff.h:1164 (discriminator 2) ./include/net/route.h:88 (discriminator 2) net/ipv4/ip_input.c:435 (discriminator 2))
[  520.058504][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  520.058701][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.058888][    C2]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[  520.059041][    C2]  ? ip_local_deliver (./include/linux/rcupdate.h:869 (discriminator 3))
[  520.059229][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.059427][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.059616][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6206)
[  520.059845][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.060033][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6252 (discriminator 2))
[  520.060254][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.060456][    C2]  process_backlog (net/core/dev.c:6670)
[  520.060646][    C2]  __napi_poll (net/core/dev.c:7729)
[  520.060806][    C2]  net_rx_action (net/core/dev.c:7792 net/core/dev.c:7949)
[  520.060996][    C2]  ? __napi_poll (./include/net/gro.h:507)
[  520.061188][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.061374][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  520.061576][    C2]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[  520.061804][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[  520.061992][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.062181][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.062366][    C2]  handle_softirqs (kernel/softirq.c:622)
[  520.062580][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  520.062780][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  520.062932][    C2]  </IRQ>
[  520.063049][    C2]  <TASK>
[  520.063165][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:911 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.063350][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  520.063548][    C2]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:914 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.063740][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.063930][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4733)
[  520.064121][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  520.064308][    C2]  ? eth_header (net/ethernet/eth.c:99)
[  520.064509][    C2]  ? neigh_connected_output (./include/linux/netdevice.h:3493 net/core/neighbour.c:1640)
[  520.064704][    C2]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:136 (discriminator 3))
[  520.064893][    C2]  ? ip6_xmit (net/ipv6/ip6_output.c:328)
[  520.065078][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  520.065264][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.065470][    C2]  ? ip6_mtu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:871 (discriminator 2) ./include/net/ip6_route.h:382 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2))
[  520.065627][    C2]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[  520.065823][    C2]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[  520.065976][    C2]  ? ip6_finish_output (./include/linux/skbuff.h:1167)
[  520.066161][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.066349][    C2]  ? xfrm_bundle_lookup.constprop.0 (net/xfrm/xfrm_policy.c:3049)
[  520.066581][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.066781][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.066967][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.067156][    C2]  ? icmp6_dst_alloc (net/ipv6/route.c:3364)
[  520.067345][    C2]  mld_sendpack (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) ./include/linux/netfilter.h:312 (discriminator 4) net/ipv6/mcast.c:1853 (discriminator 4))
[  520.067547][    C2]  ? nf_hook.constprop.0 (./include/linux/netfilter.h:278)
[  520.067739][    C2]  ? mld_send_cr (./include/linux/lockdep.h:249 net/ipv6/mcast.c:2131)
[  520.067929][    C2]  mld_ifc_work (net/ipv6/mcast.c:2694)
[  520.068121][    C2]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  520.068307][    C2]  process_one_work (kernel/workqueue.c:3314)
[  520.068511][    C2]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  520.068701][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.068893][    C2]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  520.069111][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.069306][    C2]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  520.069509][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.069701][    C2]  kthread (kernel/kthread.c:436)
[  520.069866][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  520.070117][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.070303][    C2]  ret_from_fork (arch/x86/kernel/process.c:158)
[  520.070505][    C2]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  520.070735][    C2]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  520.070921][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.071111][    C2]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  520.073171][    C2] BUG: KASAN: use-after-free in udp_tun_rx_dst (net/ipv4/udp_tunnel_core.c:217 (discriminator 1))
| [  520.073307][    C2] Read of size 2 at addr ff1100000ffb8fff by task kworker/2:2/63
| [  520.073438][    C2]
| [  520.073490][    C2] Tainted: [W]=WARN
[  520.073491][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  520.073492][    C2] Workqueue: mld mld_ifc_work
[  520.073496][    C2] Call Trace:
[  520.073497][    C2]  <IRQ>
[  520.073498][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  520.073501][    C2]  print_address_description.constprop.0 (mm/kasan/report.c:378)
[  520.073506][    C2]  print_report (mm/kasan/report.c:482)
[  520.073508][    C2]  ? __virt_addr_valid (./include/linux/rcupdate.h:939 ./include/linux/mmzone.h:2281 arch/x86/mm/physaddr.c:54)
[  520.073511][    C2]  ? __virt_addr_valid (./include/linux/rcupdate.h:965 (discriminator 1) ./include/linux/mmzone.h:2291 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))
[  520.073512][    C2]  kasan_report (mm/kasan/report.c:595)
[  520.073515][    C2]  ? udp_tun_rx_dst (net/ipv4/udp_tunnel_core.c:217 (discriminator 1))
[  520.073517][    C2]  ? udp_tun_rx_dst (net/ipv4/udp_tunnel_core.c:217 (discriminator 1))
[  520.073519][    C2]  udp_tun_rx_dst (net/ipv4/udp_tunnel_core.c:217 (discriminator 1))
[  520.073522][    C2] vxlan_rcv (drivers/net/vxlan/vxlan_core.c:1729 (discriminator 2)) vxlan
[  520.073527][    C2]  ? fib_table_lookup (net/ipv4/fib_trie.c:1613)
[  520.073529][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.073532][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.073536][    C2]  ? udp4_lib_lookup2 (./include/net/net_namespace.h:419 (discriminator 1) ./include/net/sock.h:713 (discriminator 1) net/ipv4/udp.c:370 (discriminator 1) net/ipv4/udp.c:474 (discriminator 1))
[  520.073539][    C2]  ? __udp4_lib_lookup (net/ipv4/udp.c:713)
[  520.073541][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.073544][    C2]  ? udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.073546][    C2]  udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.073547][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.073549][    C2]  ? ww_mutex_trylock (kernel/locking/mutex.c:107 (discriminator 3) kernel/locking/mutex.c:134 (discriminator 3) kernel/locking/mutex.c:860 (discriminator 3))
[  520.073550][    C2]  udp_unicast_rcv_skb (net/ipv4/udp.c:2574)
[  520.073552][    C2]  ? udp_rcv (net/ipv4/udp.c:741 (discriminator 3) net/ipv4/udp.c:2649 (discriminator 3))
[  520.073554][    C2]  udp_rcv (net/ipv4/udp.c:2651)
[  520.073556][    C2]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2451 (discriminator 1))
[  520.073558][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.073560][    C2]  ? ip_local_deliver_finish (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) net/ipv4/ip_input.c:240 (discriminator 2))
[  520.073562][    C2]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207)
[  520.073564][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.073566][    C2]  ip_local_deliver_finish (net/ipv4/ip_input.c:241 (discriminator 1))
[  520.073568][    C2]  ip_local_deliver (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:262)
[  520.073570][    C2]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42))
[  520.073571][    C2]  ? ip_rcv_finish_core (./include/linux/skbuff.h:1164 (discriminator 2) ./include/net/route.h:88 (discriminator 2) net/ipv4/ip_input.c:435 (discriminator 2))
[  520.073573][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  520.073575][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.073576][    C2]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[  520.073578][    C2]  ? ip_local_deliver (./include/linux/rcupdate.h:869 (discriminator 3))
[  520.073580][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.073582][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.073584][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6206)
[  520.073586][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.073588][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6252 (discriminator 2))
[  520.073589][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.073591][    C2]  process_backlog (net/core/dev.c:6670)
[  520.073594][    C2]  __napi_poll (net/core/dev.c:7729)
[  520.073595][    C2]  net_rx_action (net/core/dev.c:7792 net/core/dev.c:7949)
[  520.073598][    C2]  ? __napi_poll (./include/net/gro.h:507)
[  520.073600][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.073602][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  520.073604][    C2]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[  520.073607][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[  520.073609][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.073610][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.073612][    C2]  handle_softirqs (kernel/softirq.c:622)
[  520.073614][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  520.073617][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  520.073618][    C2]  </IRQ>
[  520.073619][    C2]  <TASK>
[  520.073619][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:911 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.073621][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  520.073622][    C2]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:914 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.073624][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.073627][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4733)
[  520.073628][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  520.073630][    C2]  ? eth_header (net/ethernet/eth.c:99)
[  520.073633][    C2]  ? neigh_connected_output (./include/linux/netdevice.h:3493 net/core/neighbour.c:1640)
[  520.073635][    C2]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:136 (discriminator 3))
[  520.073638][    C2]  ? ip6_xmit (net/ipv6/ip6_output.c:328)
[  520.073639][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  520.073641][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.073643][    C2]  ? ip6_mtu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:871 (discriminator 2) ./include/net/ip6_route.h:382 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2))
[  520.073644][    C2]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[  520.073646][    C2]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[  520.073648][    C2]  ? ip6_finish_output (./include/linux/skbuff.h:1167)
[  520.073649][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.073651][    C2]  ? xfrm_bundle_lookup.constprop.0 (net/xfrm/xfrm_policy.c:3049)
[  520.073659][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.073661][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.073662][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.073664][    C2]  ? icmp6_dst_alloc (net/ipv6/route.c:3364)
[  520.073666][    C2]  mld_sendpack (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) ./include/linux/netfilter.h:312 (discriminator 4) net/ipv6/mcast.c:1853 (discriminator 4))
[  520.073668][    C2]  ? nf_hook.constprop.0 (./include/linux/netfilter.h:278)
[  520.073671][    C2]  ? mld_send_cr (./include/linux/lockdep.h:249 net/ipv6/mcast.c:2131)
[  520.073673][    C2]  mld_ifc_work (net/ipv6/mcast.c:2694)
[  520.073675][    C2]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  520.073677][    C2]  process_one_work (kernel/workqueue.c:3314)
[  520.073680][    C2]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  520.073682][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.073685][    C2]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  520.073687][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.073689][    C2]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  520.073691][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.073693][    C2]  kthread (kernel/kthread.c:436)
[  520.073694][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  520.073696][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.073698][    C2]  ret_from_fork (arch/x86/kernel/process.c:158)
[  520.073701][    C2]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  520.073702][    C2]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  520.073704][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.073706][    C2]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  520.086380][    C2] ------------[ cut here ]------------
| [  520.086522][    C2] WARNING: ./include/linux/skbuff.h:3094 at udp_tun_rx_dst+0xa9b/0x1060, CPU#2: 2/63
| [  520.086749][    C2] Modules linked in: vxlan unix_diag cls_bpf sch_ingress bonding xfrm_user l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6 sctp_diag sctp [last unloaded: test_bpf]
| [  520.087464][    C2] Tainted: [B]=BAD_PAGE, [W]=WARN
[  520.087598][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  520.087868][    C2] Workqueue: mld mld_ifc_work
[  520.088055][    C2] RIP: 0010:udp_tun_rx_dst (./include/linux/skbuff.h:3094 (discriminator 4) ./include/linux/udp.h:23 (discriminator 4) net/ipv4/udp_tunnel_core.c:218 (discriminator 4))
[  520.088242][    C2] Code: 6b 74 fe 4c 8b 44 24 20 49 0f ba 28 08 4c 8b 4c 24 18 e9 c0 f9 ff ff 90 0f 0b 90 e9 7d fb ff ff 90 0f 0b 90 e9 f1 f9 ff ff 90 <0f> 0b 90 e9 a7 fa ff ff 44 89 44 24 18 89 74 24 20 4c 89 4c 24 28
All code
========
   0:	6b 74 fe 4c 8b       	imul   $0xffffff8b,0x4c(%rsi,%rdi,8),%esi
   5:	44 24 20             	rex.R and $0x20,%al
   8:	49 0f ba 28 08       	btsq   $0x8,(%r8)
   d:	4c 8b 4c 24 18       	mov    0x18(%rsp),%r9
  12:	e9 c0 f9 ff ff       	jmp    0xfffffffffffff9d7
  17:	90                   	nop
  18:	0f 0b                	ud2
  1a:	90                   	nop
  1b:	e9 7d fb ff ff       	jmp    0xfffffffffffffb9d
  20:	90                   	nop
  21:	0f 0b                	ud2
  23:	90                   	nop
  24:	e9 f1 f9 ff ff       	jmp    0xfffffffffffffa1a
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 a7 fa ff ff       	jmp    0xfffffffffffffad9
  32:	44 89 44 24 18       	mov    %r8d,0x18(%rsp)
  37:	89 74 24 20          	mov    %esi,0x20(%rsp)
  3b:	4c 89 4c 24 28       	mov    %r9,0x28(%rsp)

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 a7 fa ff ff       	jmp    0xfffffffffffffaaf
   8:	44 89 44 24 18       	mov    %r8d,0x18(%rsp)
   d:	89 74 24 20          	mov    %esi,0x20(%rsp)
  11:	4c 89 4c 24 28       	mov    %r9,0x28(%rsp)
[  520.088600][    C2] RSP: 0018:ffa0000000228648 EFLAGS: 00010246
[  520.088838][    C2] RAX: 0000000000000007 RBX: 000000000000ffff RCX: 0000000000000001
[  520.089038][    C2] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffbd7bc6a0
[  520.089213][    C2] RBP: ffa00000002286a0 R08: ff1100002067eec8 R09: ff11000025030e40
[  520.089396][    C2] R10: fffffbfff7af78d5 R11: fffffbfff7af78d5 R12: ff1100002067eedc
[  520.089571][    C2] R13: ff1100002067eeda R14: ff11000025030ef6 R15: ff1100002067ee00
[  520.089752][    C2] FS:  0000000000000000(0000) GS:ff110000ae9b0000(0000) knlGS:0000000000000000
[  520.089949][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  520.090180][    C2] CR2: 000055efa570ed5c CR3: 000000005e54d002 CR4: 0000000000771ef0
[  520.090354][    C2] PKRU: 55555554
[  520.090472][    C2] Call Trace:
[  520.090581][    C2]  <IRQ>
[  520.090675][    C2] vxlan_rcv (drivers/net/vxlan/vxlan_core.c:1729 (discriminator 2)) vxlan
[  520.090867][    C2]  ? fib_table_lookup (net/ipv4/fib_trie.c:1613)
[  520.091001][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.091133][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.091363][    C2]  ? udp4_lib_lookup2 (./include/net/net_namespace.h:419 (discriminator 1) ./include/net/sock.h:713 (discriminator 1) net/ipv4/udp.c:370 (discriminator 1) net/ipv4/udp.c:474 (discriminator 1))
[  520.091505][    C2]  ? __udp4_lib_lookup (net/ipv4/udp.c:713)
[  520.091694][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.091848][    C2]  ? udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.091983][    C2]  udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.092113][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.092242][    C2]  ? ww_mutex_trylock (kernel/locking/mutex.c:107 (discriminator 3) kernel/locking/mutex.c:134 (discriminator 3) kernel/locking/mutex.c:860 (discriminator 3))
[  520.092372][    C2]  udp_unicast_rcv_skb (net/ipv4/udp.c:2574)
[  520.092512][    C2]  ? udp_rcv (net/ipv4/udp.c:741 (discriminator 3) net/ipv4/udp.c:2649 (discriminator 3))
[  520.092622][    C2]  udp_rcv (net/ipv4/udp.c:2651)
[  520.092741][    C2]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2451 (discriminator 1))
[  520.092874][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.093005][    C2]  ? ip_local_deliver_finish (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) net/ipv4/ip_input.c:240 (discriminator 2))
[  520.093186][    C2]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207)
[  520.093316][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.093455][    C2]  ip_local_deliver_finish (net/ipv4/ip_input.c:241 (discriminator 1))
[  520.093586][    C2]  ip_local_deliver (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:262)
[  520.093722][    C2]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42))
[  520.093859][    C2]  ? ip_rcv_finish_core (./include/linux/skbuff.h:1164 (discriminator 2) ./include/net/route.h:88 (discriminator 2) net/ipv4/ip_input.c:435 (discriminator 2))
[  520.093989][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  520.094126][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.094256][    C2]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[  520.094365][    C2]  ? ip_local_deliver (./include/linux/rcupdate.h:869 (discriminator 3))
[  520.094556][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.094692][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.094824][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6206)
[  520.094979][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.095111][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6252 (discriminator 2))
[  520.095314][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.095451][    C2]  process_backlog (net/core/dev.c:6670)
[  520.095583][    C2]  __napi_poll (net/core/dev.c:7729)
[  520.095694][    C2]  net_rx_action (net/core/dev.c:7792 net/core/dev.c:7949)
[  520.095875][    C2]  ? __napi_poll (./include/net/gro.h:507)
[  520.096037][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.096168][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  520.096300][    C2]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[  520.096515][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[  520.096645][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.096783][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.096913][    C2]  handle_softirqs (kernel/softirq.c:622)
[  520.097045][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  520.097181][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  520.097295][    C2]  </IRQ>
[  520.097381][    C2]  <TASK>
[  520.097479][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:911 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.097609][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  520.097748][    C2]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:914 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.098028][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.098159][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4733)
[  520.098294][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  520.098435][    C2]  ? eth_header (net/ethernet/eth.c:99)
[  520.098567][    C2]  ? neigh_connected_output (./include/linux/netdevice.h:3493 net/core/neighbour.c:1640)
[  520.098704][    C2]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:136 (discriminator 3))
[  520.098839][    C2]  ? ip6_xmit (net/ipv6/ip6_output.c:328)
[  520.098969][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  520.099100][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.099235][    C2]  ? ip6_mtu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:871 (discriminator 2) ./include/net/ip6_route.h:382 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2))
[  520.099346][    C2]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[  520.099486][    C2]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[  520.099645][    C2]  ? ip6_finish_output (./include/linux/skbuff.h:1167)
[  520.099785][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.099914][    C2]  ? xfrm_bundle_lookup.constprop.0 (net/xfrm/xfrm_policy.c:3049)
[  520.100121][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.100257][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.100399][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.100530][    C2]  ? icmp6_dst_alloc (net/ipv6/route.c:3364)
[  520.100665][    C2]  mld_sendpack (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) ./include/linux/netfilter.h:312 (discriminator 4) net/ipv6/mcast.c:1853 (discriminator 4))
[  520.100802][    C2]  ? nf_hook.constprop.0 (./include/linux/netfilter.h:278)
[  520.100932][    C2]  ? mld_send_cr (./include/linux/lockdep.h:249 net/ipv6/mcast.c:2131)
[  520.101114][    C2]  mld_ifc_work (net/ipv6/mcast.c:2694)
[  520.101247][    C2]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  520.101380][    C2]  process_one_work (kernel/workqueue.c:3314)
[  520.101523][    C2]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  520.101660][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.101792][    C2]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  520.101924][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.102062][    C2]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  520.102297][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.102439][    C2]  kthread (kernel/kthread.c:436)
[  520.102550][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  520.102709][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.102841][    C2]  ret_from_fork (arch/x86/kernel/process.c:158)
[  520.103024][    C2]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  520.103202][    C2]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  520.103396][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.103524][    C2]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  520.104990][    C2] ------------[ cut here ]------------
| [  520.105124][    C2] WARNING: ./include/linux/skbuff.h:3094 at udp_tun_rx_dst+0xa89/0x1060, CPU#2: 2/63
| [  520.105400][    C2] Modules linked in: vxlan unix_diag cls_bpf sch_ingress bonding xfrm_user l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6 sctp_diag sctp [last unloaded: test_bpf]
| [  520.106271][    C2] Tainted: [B]=BAD_PAGE, [W]=WARN
[  520.106409][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  520.106559][    C2] Workqueue: mld mld_ifc_work
[  520.106693][    C2] RIP: 0010:udp_tun_rx_dst (./include/linux/skbuff.h:3094 (discriminator 4) ./include/linux/udp.h:23 (discriminator 4) net/ipv4/udp_tunnel_core.c:219 (discriminator 4))
[  520.106932][    C2] Code: c7 be 08 00 00 00 4c 89 4c 24 18 4c 89 44 24 20 e8 4c 6b 74 fe 4c 8b 44 24 20 49 0f ba 28 08 4c 8b 4c 24 18 e9 c0 f9 ff ff 90 <0f> 0b 90 e9 7d fb ff ff 90 0f 0b 90 e9 f1 f9 ff ff 90 0f 0b 90 e9
All code
========
   0:	c7                   	(bad)
   1:	be 08 00 00 00       	mov    $0x8,%esi
   6:	4c 89 4c 24 18       	mov    %r9,0x18(%rsp)
   b:	4c 89 44 24 20       	mov    %r8,0x20(%rsp)
  10:	e8 4c 6b 74 fe       	call   0xfffffffffe746b61
  15:	4c 8b 44 24 20       	mov    0x20(%rsp),%r8
  1a:	49 0f ba 28 08       	btsq   $0x8,(%r8)
  1f:	4c 8b 4c 24 18       	mov    0x18(%rsp),%r9
  24:	e9 c0 f9 ff ff       	jmp    0xfffffffffffff9e9
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 7d fb ff ff       	jmp    0xfffffffffffffbaf
  32:	90                   	nop
  33:	0f 0b                	ud2
  35:	90                   	nop
  36:	e9 f1 f9 ff ff       	jmp    0xfffffffffffffa2c
  3b:	90                   	nop
  3c:	0f 0b                	ud2
  3e:	90                   	nop
  3f:	e9                   	.byte 0xe9

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 7d fb ff ff       	jmp    0xfffffffffffffb85
   8:	90                   	nop
   9:	0f 0b                	ud2
   b:	90                   	nop
   c:	e9 f1 f9 ff ff       	jmp    0xfffffffffffffa02
  11:	90                   	nop
  12:	0f 0b                	ud2
  14:	90                   	nop
  15:	e9                   	.byte 0xe9
[  520.107280][    C2] RSP: 0018:ffa0000000228648 EFLAGS: 00010246
[  520.107443][    C2] RAX: 0000000000000007 RBX: 000000000000ffff RCX: ffffffffbac31c3e
[  520.107615][    C2] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[  520.107798][    C2] RBP: ffa00000002286a0 R08: ff1100002067eec8 R09: ff11000025030e40
[  520.107972][    C2] R10: fffffbfff7af78d5 R11: fffffbfff7af78d5 R12: ff1100002067eedc
[  520.108145][    C2] R13: ff1100002067eeda R14: ff11000025030ef6 R15: ff1100002067ee00
[  520.108396][    C2] FS:  0000000000000000(0000) GS:ff110000ae9b0000(0000) knlGS:0000000000000000
[  520.108593][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  520.108752][    C2] CR2: 000055efa570ed5c CR3: 000000005e54d002 CR4: 0000000000771ef0
[  520.108933][    C2] PKRU: 55555554
[  520.109041][    C2] Call Trace:
[  520.109152][    C2]  <IRQ>
[  520.109239][    C2] vxlan_rcv (drivers/net/vxlan/vxlan_core.c:1729 (discriminator 2)) vxlan
[  520.109431][    C2]  ? fib_table_lookup (net/ipv4/fib_trie.c:1613)
[  520.109563][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.109695][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.109849][    C2]  ? udp4_lib_lookup2 (./include/net/net_namespace.h:419 (discriminator 1) ./include/net/sock.h:713 (discriminator 1) net/ipv4/udp.c:370 (discriminator 1) net/ipv4/udp.c:474 (discriminator 1))
[  520.110030][    C2]  ? __udp4_lib_lookup (net/ipv4/udp.c:713)
[  520.110188][    C2]  ? encap_bypass_if_local (drivers/net/vxlan/vxlan_core.c:2327) vxlan
[  520.110342][    C2]  ? udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.110542][    C2]  udp_queue_rcv_one_skb (net/ipv4/udp.c:2388)
[  520.110677][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.110807][    C2]  ? ww_mutex_trylock (kernel/locking/mutex.c:107 (discriminator 3) kernel/locking/mutex.c:134 (discriminator 3) kernel/locking/mutex.c:860 (discriminator 3))
[  520.110942][    C2]  udp_unicast_rcv_skb (net/ipv4/udp.c:2574)
[  520.111073][    C2]  ? udp_rcv (net/ipv4/udp.c:741 (discriminator 3) net/ipv4/udp.c:2649 (discriminator 3))
[  520.111182][    C2]  udp_rcv (net/ipv4/udp.c:2651)
[  520.111292][    C2]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2451 (discriminator 1))
[  520.111434][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.111566][    C2]  ? ip_local_deliver_finish (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) net/ipv4/ip_input.c:240 (discriminator 2))
[  520.111706][    C2]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207)
[  520.111837][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.111981][    C2]  ip_local_deliver_finish (net/ipv4/ip_input.c:241 (discriminator 1))
[  520.112115][    C2]  ip_local_deliver (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:262)
[  520.112344][    C2]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42))
[  520.112488][    C2]  ? ip_rcv_finish_core (./include/linux/skbuff.h:1164 (discriminator 2) ./include/net/route.h:88 (discriminator 2) net/ipv4/ip_input.c:435 (discriminator 2))
[  520.112620][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  520.112763][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6668 (discriminator 2))
[  520.112895][    C2]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[  520.113005][    C2]  ? ip_local_deliver (./include/linux/rcupdate.h:869 (discriminator 3))
[  520.113147][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  520.113305][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.113450][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6206)
[  520.113604][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.113739][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6252 (discriminator 2))
[  520.113889][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.114024][    C2]  process_backlog (net/core/dev.c:6670)
[  520.114156][    C2]  __napi_poll (net/core/dev.c:7729)
[  520.114266][    C2]  net_rx_action (net/core/dev.c:7792 net/core/dev.c:7949)
[  520.114408][    C2]  ? __napi_poll (./include/net/gro.h:507)
[  520.114541][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.114675][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  520.114807][    C2]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[  520.114960][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[  520.115089][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  520.115270][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.115410][    C2]  handle_softirqs (kernel/softirq.c:622)
[  520.115545][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  520.115682][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  520.115792][    C2]  </IRQ>
[  520.115876][    C2]  <TASK>
[  520.115964][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:911 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.116094][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  520.116251][    C2]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:914 (discriminator 2) net/core/dev.c:4907 (discriminator 2))
[  520.116383][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  520.116532][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4733)
[  520.116669][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  520.116799][    C2]  ? eth_header (net/ethernet/eth.c:99)
[  520.116930][    C2]  ? neigh_connected_output (./include/linux/netdevice.h:3493 net/core/neighbour.c:1640)
[  520.117062][    C2]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:136 (discriminator 3))
[  520.117195][    C2]  ? ip6_xmit (net/ipv6/ip6_output.c:328)
[  520.117325][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  520.117519][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.117683][    C2]  ? ip6_mtu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:871 (discriminator 2) ./include/net/ip6_route.h:382 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2))
[  520.117869][    C2]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[  520.118002][    C2]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[  520.118113][    C2]  ? ip6_finish_output (./include/linux/skbuff.h:1167)
[  520.118244][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  520.118439][    C2]  ? xfrm_bundle_lookup.constprop.0 (net/xfrm/xfrm_policy.c:3049)
[  520.118592][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  520.118780][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.118908][    C2]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[  520.119042][    C2]  ? icmp6_dst_alloc (net/ipv6/route.c:3364)
[  520.119276][    C2]  mld_sendpack (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) ./include/linux/netfilter.h:312 (discriminator 4) net/ipv6/mcast.c:1853 (discriminator 4))
[  520.119421][    C2]  ? nf_hook.constprop.0 (./include/linux/netfilter.h:278)
[  520.119579][    C2]  ? mld_send_cr (./include/linux/lockdep.h:249 net/ipv6/mcast.c:2131)
[  520.119772][    C2]  mld_ifc_work (net/ipv6/mcast.c:2694)
[  520.119952][    C2]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  520.120085][    C2]  process_one_work (kernel/workqueue.c:3314)
[  520.120266][    C2]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  520.120408][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  520.120590][    C2]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  520.120730][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.120862][    C2]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  520.120992][    C2]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  520.121126][    C2]  kthread (kernel/kthread.c:436)
[  520.121235][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  520.121398][    C2]  ? kthread_affine_node (kernel/kthread.c:378)
[  520.121529][    C2]  ret_from_fork (arch/x86/kernel/process.c:158)
[  520.121667][    C2]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  520.121823][    C2]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  520.121957][    C2]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
print_report:kasan_report:udp_tun_rx_dst:vxlan_rcv:udp_queue_rcv_one_skb
udp_tun_rx_dst:vxlan_rcv:udp_queue_rcv_one_skb:udp_unicast_rcv_skb:udp_rcv