======================================
| [  962.150070][T17532] br0: port 1(vx0) entered forwarding state
| [  968.650173][    C3] ------------[ cut here ]------------
| [  968.650346][    C3] WARNING: ./include/linux/skbuff.h:3239 at __udp4_lib_err_encap+0x69a/0xad0, CPU#3: mausezahn/17593
| [  968.650772][    C3] Modules linked in: netdevsim psample sctp ip6_gre gre l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core act_mirred act_tunnel_key bareudp mpls_gso mpls_iptunnel mpls_router xfrm_interface xfrm_user act_gact cls_flower sch_ingress vxlan
[  968.651697][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  968.651867][    C3] RIP: 0010:__udp4_lib_err_encap (./include/linux/skbuff.h:3239 (discriminator 3) ./include/linux/skbuff.h:3235 (discriminator 3) net/ipv4/udp.c:864 (discriminator 3))
[  968.652052][    C3] Code: 84 02 00 00 0f b6 2e 83 e5 0f 90 0f 0b 90 e9 ef fa ff ff 90 0f 0b 90 90 0f 0b 90 e9 bd fc ff ff 90 0f 0b 90 e9 57 fa ff ff 90 <0f> 0b 90 e9 65 fa ff ff 4c 8b 74 24 20 4c 8b 6c 24 28 4d 89 fa 45
All code
========
   0:	84 02                	test   %al,(%rdx)
   2:	00 00                	add    %al,(%rax)
   4:	0f b6 2e             	movzbl (%rsi),%ebp
   7:	83 e5 0f             	and    $0xf,%ebp
   a:	90                   	nop
   b:	0f 0b                	ud2
   d:	90                   	nop
   e:	e9 ef fa ff ff       	jmp    0xfffffffffffffb02
  13:	90                   	nop
  14:	0f 0b                	ud2
  16:	90                   	nop
  17:	90                   	nop
  18:	0f 0b                	ud2
  1a:	90                   	nop
  1b:	e9 bd fc ff ff       	jmp    0xfffffffffffffcdd
  20:	90                   	nop
  21:	0f 0b                	ud2
  23:	90                   	nop
  24:	e9 57 fa ff ff       	jmp    0xfffffffffffffa80
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 65 fa ff ff       	jmp    0xfffffffffffffa97
  32:	4c 8b 74 24 20       	mov    0x20(%rsp),%r14
  37:	4c 8b 6c 24 28       	mov    0x28(%rsp),%r13
  3c:	4d 89 fa             	mov    %r15,%r10
  3f:	45                   	rex.RB

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 65 fa ff ff       	jmp    0xfffffffffffffa6d
   8:	4c 8b 74 24 20       	mov    0x20(%rsp),%r14
   d:	4c 8b 6c 24 28       	mov    0x28(%rsp),%r13
  12:	4d 89 fa             	mov    %r15,%r10
  15:	45                   	rex.RB
[  968.652536][    C3] RSP: 0018:ffa0000000280868 EFLAGS: 00010293
[  968.652706][    C3] RAX: ff11000021ac83e4 RBX: ff1100000ffdc200 RCX: 0000000000000000
[  968.652914][    C3] RDX: ff11000021ac8400 RSI: ff11000021ac83ec RDI: fffffffffffffff8
[  968.653125][    C3] RBP: ff11000021ac83c0 R08: ff11000021ac83ec R09: 0000000000000000
[  968.653328][    C3] R10: ff1100000ffdc2b8 R11: 0000000000000001 R12: 0000000000000000
[  968.653534][    C3] R13: ff1100000ffdc2c8 R14: ff1100000ffdc2b6 R15: ff1100000cf95d40
[  968.653742][    C3] FS:  00007f27687d4c80(0000) GS:ff110000aea54000(0000) knlGS:0000000000000000
[  968.654104][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  968.654275][    C3] CR2: 00007f2768a32af0 CR3: 000000000c9bc005 CR4: 0000000000771ef0
[  968.654483][    C3] PKRU: 55555554
[  968.654585][    C3] Call Trace:
[  968.654690][    C3]  <IRQ>
[  968.654763][    C3]  udp_err (net/ipv4/udp.c:933)
[  968.654870][    C3]  icmp_unreach (net/ipv4/icmp.c:1196)
[  968.655003][    C3]  ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2112 net/core/skbuff.c:3785)
[  968.655146][    C3]  icmp_rcv (net/ipv4/icmp.c:1525 (discriminator 1))
[  968.655252][    C3]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:209)
[  968.655388][    C3]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[  968.655527][    C3]  ip_local_deliver_finish (./include/linux/rcupdate.h:867 net/ipv4/ip_input.c:242)
[  968.655661][    C3]  ip_local_deliver (net/ipv4/ip_input.c:259)
[  968.655796][    C3]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:251)
[  968.655933][    C3]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:409 (discriminator 1))
[  968.656073][    C3]  ? do_xdp_generic (net/core/dev.c:5979)
[  968.656211][    C3]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[  968.656347][    C3]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[  968.656447][    C3]  ? ip_local_deliver (net/ipv4/ip_input.c:605)
[  968.656587][    C3]  ? mark_usage (kernel/locking/lockdep.c:4674 (discriminator 1))
[  968.656725][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  968.656858][    C3]  ? netif_close_many (./include/linux/list.h:127 ./include/linux/list.h:223 ./include/linux/list.h:295 net/core/dev.c:1799)
[  968.656992][    C3]  __netif_receive_skb_one_core (net/core/dev.c:6202)
[  968.657162][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[  968.657297][    C3]  ? __netif_receive_skb_list_core (net/core/dev.c:6202)
[  968.657461][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  968.657602][    C3]  process_backlog (./include/linux/rcupdate.h:867 net/core/dev.c:6674)
[  968.657737][    C3]  __napi_poll (net/core/dev.c:7737)
[  968.657837][    C3]  net_rx_action (net/core/dev.c:7800 net/core/dev.c:7957)
[  968.657972][    C3]  ? __napi_poll (net/core/dev.c:7919)
[  968.658108][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  968.658246][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  968.658385][    C3]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  968.658524][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  968.658658][    C3]  ? _local_bh_enable (kernel/softirq.c:580)
[  968.658791][    C3]  ? trace_csd_function_exit (./include/trace/events/csd.h:64 (discriminator 24))
[  968.658924][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  968.659059][    C3]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  968.659160][    C3]  </IRQ>
[  968.659228][    C3]  <TASK>
[  968.659297][    C3]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:909 (discriminator 2) net/core/dev.c:4905 (discriminator 2))
[  968.659429][    C3]  __local_bh_enable_ip (kernel/softirq.c:450)
[  968.659565][    C3]  __dev_queue_xmit (net/core/dev.c:4906)
[  968.659698][    C3]  ? _copy_from_iter (./arch/x86/include/asm/smap.h:47 ./arch/x86/include/asm/uaccess_64.h:121 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:67 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[  968.659831][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[  968.659967][    C3]  ? _copy_from_iter_flushcache (lib/iov_iter.c:266)
[  968.660134][    C3]  ? ref_tracker_alloc (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) lib/ref_tracker.c:265 (discriminator 4))
[  968.660269][    C3]  ? netdev_core_pick_tx (net/core/dev.c:4767)
[  968.660406][    C3]  ? packet_release (net/packet/af_packet.c:1924)
[  968.660547][    C3]  packet_snd (net/packet/af_packet.c:3077 (discriminator 1))
[  968.660682][    C3]  ? tpacket_snd (net/packet/af_packet.c:2941)
[  968.660814][    C3]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  968.660951][    C3]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  968.661086][    C3]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  968.661220][    C3]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  968.661355][    C3]  ? __ia32_sys_getpeername (net/socket.c:2232)
[  968.661496][    C3]  ? sock_ioctl (net/socket.c:1435)
[  968.661632][    C3]  ? __sys_setsockopt (net/socket.c:2406 (discriminator 1))
[  968.661765][    C3]  __x64_sys_sendto (net/socket.c:2272 (discriminator 1) net/socket.c:2268 (discriminator 1) net/socket.c:2268 (discriminator 1))
[  968.661897][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 24))
[  968.662063][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  968.662196][    C3]  ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:187 arch/x86/entry/syscall_64.c:89)
[  968.662328][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  968.662463][    C3]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:106 (discriminator 9))
[  968.662599][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  968.662731][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  968.662897][    C3] RIP: 0033:0x7f276899322e
[  968.663041][    C3] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  968.663523][    C3] RSP: 002b:00007fff336a2150 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  968.663724][    C3] RAX: ffffffffffffffda RBX: 0000563ef3b41b52 RCX: 00007f276899322e
[  968.663923][    C3] RDX: 000000000000008e RSI: 0000563ef3b41b52 RDI: 0000000000000005
[  968.664126][    C3] RBP: 00007fff336a2160 R08: 00007fff336a21b0 R09: 0000000000000014
[  968.664328][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 0000563ef3b41830
[  968.664539][    C3] R13: 000000000000008e R14: 0000000000000005 R15: 0000563ef3b41830
| [  995.334379][    C2] ------------[ cut here ]------------
| [  995.334605][    C2] WARNING: ./include/linux/skbuff.h:3239 at __udp6_lib_err_encap+0x600/0x930, CPU#2: mausezahn/18260
| [  995.334942][    C2] Modules linked in: netdevsim psample sctp ip6_gre gre l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core act_mirred act_tunnel_key bareudp mpls_gso mpls_iptunnel mpls_router xfrm_interface xfrm_user act_gact cls_flower sch_ingress vxlan
| [  995.336074][    C2] Tainted: [W]=WARN
[  995.336278][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  995.336506][    C2] RIP: 0010:__udp6_lib_err_encap (./include/linux/skbuff.h:3239 (discriminator 3) ./include/linux/skbuff.h:3235 (discriminator 3) net/ipv6/udp.c:652 (discriminator 3))
[  995.336730][    C2] Code: 08 84 d2 0f 85 4f 02 00 00 44 8b 4b 28 e9 a9 fe ff ff 4c 8b 6c 24 20 4c 8b 7c 24 28 45 31 e4 4c 8b 74 24 30 e9 ce fd ff ff 90 <0f> 0b 90 48 29 c5 48 89 e8 48 81 fd ff ff 00 00 0f 86 09 fb ff ff
All code
========
   0:	08 84 d2 0f 85 4f 02 	or     %al,0x24f850f(%rdx,%rdx,8)
   7:	00 00                	add    %al,(%rax)
   9:	44 8b 4b 28          	mov    0x28(%rbx),%r9d
   d:	e9 a9 fe ff ff       	jmp    0xfffffffffffffebb
  12:	4c 8b 6c 24 20       	mov    0x20(%rsp),%r13
  17:	4c 8b 7c 24 28       	mov    0x28(%rsp),%r15
  1c:	45 31 e4             	xor    %r12d,%r12d
  1f:	4c 8b 74 24 30       	mov    0x30(%rsp),%r14
  24:	e9 ce fd ff ff       	jmp    0xfffffffffffffdf7
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 29 c5             	sub    %rax,%rbp
  30:	48 89 e8             	mov    %rbp,%rax
  33:	48 81 fd ff ff 00 00 	cmp    $0xffff,%rbp
  3a:	0f 86 09 fb ff ff    	jbe    0xfffffffffffffb49

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 29 c5             	sub    %rax,%rbp
   6:	48 89 e8             	mov    %rbp,%rax
   9:	48 81 fd ff ff 00 00 	cmp    $0xffff,%rbp
  10:	0f 86 09 fb ff ff    	jbe    0xfffffffffffffb1f
[  995.337275][    C2] RSP: 0018:ffa00000002286a8 EFLAGS: 00010293
[  995.337503][    C2] RAX: ff1100001539c740 RBX: ff11000026811000 RCX: ff1100001539c7b0
[  995.337747][    C2] RDX: ff1100001539c780 RSI: ff1100001539c788 RDI: fffffffffffffff8
[  995.337990][    C2] RBP: ff1100001539c788 R08: 1fe2200004d0221a R09: ff11000026811000
[  995.338249][    C2] R10: ff1100000fd4dd40 R11: 0000000000000004 R12: 0000000000000000
[  995.338507][    C2] R13: ff110000268110b6 R14: ff110000268110c8 R15: ff110000268110b8
[  995.338756][    C2] FS:  00007f27269e0c80(0000) GS:ff110000ae9d4000(0000) knlGS:0000000000000000
[  995.339034][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  995.339250][    C2] CR2: 00007ffe38858ef0 CR3: 000000002168d004 CR4: 0000000000771ef0
[  995.339507][    C2] PKRU: 55555554
[  995.339653][    C2] Call Trace:
[  995.339797][    C2]  <IRQ>
[  995.339910][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  995.340094][    C2]  udpv6_err (net/ipv6/udp.c:714)
[  995.340254][    C2]  ? __udp6_lib_err_encap (net/ipv6/udp.c:695)
[  995.340436][    C2]  icmpv6_notify (net/ipv6/icmp.c:1087)
[  995.340630][    C2]  ? icmpv6_param_prob_reason (net/ipv6/icmp.c:1039)
[  995.340807][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[  995.340985][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  995.341178][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  995.341362][    C2]  icmpv6_rcv (net/ipv6/icmp.c:1230)
[  995.341558][    C2]  ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:480)
[  995.341741][    C2]  ip6_input_finish (net/ipv6/ip6_input.c:532)
[  995.341919][    C2]  ip6_input (./include/linux/rcupdate.h:867 net/ipv6/ip6_input.c:543)
[  995.342064][    C2]  ? ip6_input_finish (net/ipv6/ip6_input.c:536)
[  995.342251][    C2]  ? ip6_rcv_core (./include/linux/skbuff.h:3395 net/ipv6/ip6_input.c:332)
[  995.342434][    C2]  ipv6_rcv (./include/net/dst.h:480 (discriminator 4) net/ipv6/ip6_input.c:119 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) ./include/linux/netfilter.h:312 (discriminator 4) net/ipv6/ip6_input.c:351 (discriminator 4))
[  995.342590][    C2]  ? ip6_rcv_core (net/ipv6/ip6_input.c:345)
[  995.342769][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674 (discriminator 1))
[  995.342946][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  995.343122][    C2]  ? down_read_killable_nested (kernel/locking/rwsem.c:1298 (discriminator 1) kernel/locking/rwsem.c:1314 (discriminator 1) kernel/locking/rwsem.c:1714 (discriminator 1))
[  995.343354][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[  995.343544][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6202)
[  995.343758][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[  995.343938][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6202)
[  995.344147][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  995.344336][    C2]  process_backlog (./include/linux/rcupdate.h:867 net/core/dev.c:6674)
[  995.344533][    C2]  __napi_poll (net/core/dev.c:7737)
[  995.344679][    C2]  net_rx_action (net/core/dev.c:7800 net/core/dev.c:7957)
[  995.344859][    C2]  ? __napi_poll (net/core/dev.c:7919)
[  995.345039][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  995.345231][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  995.345412][    C2]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  995.345603][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  995.345782][    C2]  ? _local_bh_enable (kernel/softirq.c:580)
[  995.345958][    C2]  ? trace_csd_function_exit (./include/trace/events/csd.h:64 (discriminator 24))
[  995.346134][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  995.346317][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  995.346572][    C2]  </IRQ>
[  995.346685][    C2]  <TASK>
[  995.346796][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:909 (discriminator 2) net/core/dev.c:4905 (discriminator 2))
[  995.346973][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  995.347151][    C2]  __dev_queue_xmit (net/core/dev.c:4906)
[  995.347337][    C2]  ? _copy_from_iter (./arch/x86/include/asm/smap.h:47 ./arch/x86/include/asm/uaccess_64.h:121 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:67 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[  995.347527][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[  995.347708][    C2]  ? _copy_from_iter_flushcache (lib/iov_iter.c:266)
[  995.347921][    C2]  ? ref_tracker_alloc (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) lib/ref_tracker.c:265 (discriminator 4))
[  995.348100][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4767)
[  995.348283][    C2]  ? packet_release (net/packet/af_packet.c:1924)
[  995.348479][    C2]  packet_snd (net/packet/af_packet.c:3077 (discriminator 1))
[  995.348662][    C2]  ? tpacket_snd (net/packet/af_packet.c:2941)
[  995.348837][    C2]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  995.349017][    C2]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  995.349198][    C2]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  995.349380][    C2]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  995.349575][    C2]  ? __ia32_sys_getpeername (net/socket.c:2232)
[  995.349756][    C2]  ? sock_ioctl (net/socket.c:1435)
[  995.349937][    C2]  ? __sys_setsockopt (net/socket.c:2406 (discriminator 1))
[  995.350116][    C2]  __x64_sys_sendto (net/socket.c:2272 (discriminator 1) net/socket.c:2268 (discriminator 1) net/socket.c:2268 (discriminator 1))
[  995.350304][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 24))
[  995.350524][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  995.350704][    C2]  ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:187 arch/x86/entry/syscall_64.c:89)
[  995.350881][    C2]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  995.351059][    C2]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:106 (discriminator 9))
[  995.351242][    C2]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  995.351420][    C2]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  995.351642][    C2] RIP: 0033:0x7f2726b9f22e
[  995.351825][    C2] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  995.352348][    C2] RSP: 002b:00007ffe3886ac70 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  995.352603][    C2] RAX: ffffffffffffffda RBX: 0000562e1d5ecb52 RCX: 00007f2726b9f22e
[  995.352847][    C2] RDX: 000000000000008e RSI: 0000562e1d5ecb52 RDI: 0000000000000005
[  995.353093][    C2] RBP: 00007ffe3886ac80 R08: 00007ffe3886acd0 R09: 0000000000000014
[  995.353344][    C2] R10: 0000000000000000 R11: 0000000000000202 R12: 0000562e1d5ec830


Finger prints:
__udp6_lib_err_encap:udpv6_err:icmpv6_notify:icmpv6_rcv:ip6_protocol_deliver_rcu
__udp4_lib_err_encap:udp_err:icmp_unreach:icmp_rcv:ip_protocol_deliver_rcu