======================================
| [  613.091077][ T8248] GACT probability NOT on
| [  614.070936][    C2] ------------[ cut here ]------------
| [  614.071210][    C2] WARNING: ./include/linux/skbuff.h:3239 at __udp4_lib_err_encap+0x69a/0xad0, CPU#2: mausezahn/8280
| [  614.071640][    C2] Modules linked in: act_gact cls_flower sch_ingress vxlan
[  614.072342][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  614.072666][    C2] 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))
[  614.072906][    C2] 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
[  614.073464][    C2] RSP: 0018:ffa0000000228868 EFLAGS: 00010293
[  614.073712][    C2] RAX: ff11000015531fe4 RBX: ff1100001cefd1c0 RCX: 0000000000000000
[  614.073982][    C2] RDX: ff11000015532000 RSI: ff11000015531fec RDI: fffffffffffffff8
[  614.074254][    C2] RBP: ff11000015531fc0 R08: ff11000015531fec R09: 0000000000000000
[  614.074545][    C2] R10: ff1100001cefd278 R11: 0000000000000001 R12: 0000000000000000
[  614.074814][    C2] R13: ff1100001cefd288 R14: ff1100001cefd276 R15: ff11000009b70040
[  614.075092][    C2] FS:  00007fdf79948c80(0000) GS:ff110000c03d4000(0000) knlGS:0000000000000000
[  614.075394][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  614.075651][    C2] CR2: 00007fdf79ba6af0 CR3: 0000000016105002 CR4: 0000000000771ef0
[  614.075919][    C2] PKRU: 55555554
[  614.076095][    C2] Call Trace:
[  614.076258][    C2]  <IRQ>
[  614.076391][    C2]  udp_err (net/ipv4/udp.c:933)
[  614.076579][    C2]  icmp_unreach (net/ipv4/icmp.c:1196)
[  614.076772][    C2]  ? __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)
[  614.076974][    C2]  icmp_rcv (net/ipv4/icmp.c:1525 (discriminator 1))
[  614.077140][    C2]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:209)
[  614.077337][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[  614.077556][    C2]  ip_local_deliver_finish (./include/linux/rcupdate.h:867 net/ipv4/ip_input.c:242)
[  614.077750][    C2]  ip_local_deliver (net/ipv4/ip_input.c:259)
[  614.077953][    C2]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:251)
[  614.078140][    C2]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:409 (discriminator 1))
[  614.078326][    C2]  ? do_xdp_generic (net/core/dev.c:5979)
[  614.078539][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[  614.078729][    C2]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[  614.078892][    C2]  ? ip_local_deliver (net/ipv4/ip_input.c:605)
[  614.079086][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674 (discriminator 1))
[  614.079283][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  614.079470][    C2]  ? netif_close_many (./include/linux/list.h:127 ./include/linux/list.h:223 ./include/linux/list.h:295 net/core/dev.c:1799)
[  614.079669][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6202)
[  614.079901][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[  614.080099][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6202)
[  614.080323][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  614.080553][    C2]  process_backlog (./include/linux/rcupdate.h:867 net/core/dev.c:6674)
[  614.080762][    C2]  __napi_poll (net/core/dev.c:7737)
[  614.080920][    C2]  net_rx_action (net/core/dev.c:7800 net/core/dev.c:7957)
[  614.081122][    C2]  ? __napi_poll (net/core/dev.c:7919)
[  614.081325][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  614.081534][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  614.081717][    C2]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  614.081907][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  614.082091][    C2]  ? _local_bh_enable (kernel/softirq.c:580)
[  614.082304][    C2]  ? trace_csd_function_exit (./include/trace/events/csd.h:64 (discriminator 24))
[  614.082526][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  614.082721][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  614.082879][    C2]  </IRQ>
[  614.083000][    C2]  <TASK>
[  614.083120][    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))
[  614.083314][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  614.083520][    C2]  __dev_queue_xmit (net/core/dev.c:4906)
[  614.083717][    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)
[  614.083902][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[  614.084093][    C2]  ? _copy_from_iter_flushcache (lib/iov_iter.c:266)
[  614.084324][    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))
[  614.084535][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4767)
[  614.084729][    C2]  ? packet_release (net/packet/af_packet.c:1924)
[  614.084920][    C2]  packet_snd (net/packet/af_packet.c:3077 (discriminator 1))
[  614.085114][    C2]  ? tpacket_snd (net/packet/af_packet.c:2941)
[  614.085310][    C2]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  614.085522][    C2]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  614.085717][    C2]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  614.085901][    C2]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  614.086095][    C2]  ? __ia32_sys_getpeername (net/socket.c:2232)
[  614.086284][    C2]  ? sock_ioctl (net/socket.c:1435)
[  614.086484][    C2]  ? __sys_setsockopt (net/socket.c:2406 (discriminator 1))
[  614.086689][    C2]  __x64_sys_sendto (net/socket.c:2272 (discriminator 1) net/socket.c:2268 (discriminator 1) net/socket.c:2268 (discriminator 1))
[  614.086881][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 24))
[  614.087101][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  614.087278][    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)
[  614.087463][    C2]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  614.087655][    C2]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:106 (discriminator 9))
[  614.087834][    C2]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  614.088013][    C2]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  614.088233][    C2] RIP: 0033:0x7fdf79b0722e
[  614.088435][    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
[  614.088972][    C2] RSP: 002b:00007ffddaefcca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  614.089220][    C2] RAX: ffffffffffffffda RBX: 00005641a6aa7b52 RCX: 00007fdf79b0722e
[  614.089478][    C2] RDX: 000000000000008e RSI: 00005641a6aa7b52 RDI: 0000000000000005
[  614.089735][    C2] RBP: 00007ffddaefccb0 R08: 00007ffddaefcd00 R09: 0000000000000014
[  614.089991][    C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00005641a6aa7830
[  614.090249][    C2] R13: 000000000000008e R14: 0000000000000005 R15: 00005641a6aa7830
| [  642.030421][    C1] ------------[ cut here ]------------
| [  642.030625][    C1] WARNING: ./include/linux/skbuff.h:3239 at __udp6_lib_err_encap+0x600/0x930, CPU#1: mausezahn/8949
| [  642.030956][    C1] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  642.031566][    C1] Tainted: [W]=WARN
[  642.031714][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  642.031917][    C1] 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))
[  642.032150][    C1] 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
[  642.032783][    C1] RSP: 0018:ffa00000001d06a8 EFLAGS: 00010293
[  642.032998][    C1] RAX: ff11000026e7ea40 RBX: ff1100001b34da80 RCX: ff11000026e7eab0
[  642.033254][    C1] RDX: ff11000026e7ea80 RSI: ff11000026e7ea88 RDI: fffffffffffffff8
[  642.033496][    C1] RBP: ff11000026e7ea88 R08: 1fe2200003669b6a R09: ff1100001b34da80
[  642.033750][    C1] R10: ff11000009b70040 R11: 0000000000000004 R12: 0000000000000000
[  642.033999][    C1] R13: ff1100001b34db36 R14: ff1100001b34db48 R15: ff1100001b34db38
[  642.034245][    C1] FS:  00007f101b880c80(0000) GS:ff110000c0354000(0000) knlGS:0000000000000000
[  642.034544][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  642.034749][    C1] CR2: 00007ffc561fd7d0 CR3: 000000000f4ca004 CR4: 0000000000771ef0
[  642.034997][    C1] PKRU: 55555554
[  642.035126][    C1] Call Trace:
[  642.035244][    C1]  <IRQ>
[  642.035327][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  642.035508][    C1]  udpv6_err (net/ipv6/udp.c:714)
[  642.035753][    C1]  ? __udp6_lib_err_encap (net/ipv6/udp.c:695)
[  642.035931][    C1]  icmpv6_notify (net/ipv6/icmp.c:1087)
[  642.036113][    C1]  ? icmpv6_param_prob_reason (net/ipv6/icmp.c:1039)
[  642.036283][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[  642.036456][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  642.036645][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  642.036814][    C1]  icmpv6_rcv (net/ipv6/icmp.c:1230)
[  642.036981][    C1]  ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:480)
[  642.037158][    C1]  ip6_input_finish (net/ipv6/ip6_input.c:532)
[  642.037326][    C1]  ip6_input (./include/linux/rcupdate.h:867 net/ipv6/ip6_input.c:543)
[  642.037453][    C1]  ? ip6_input_finish (net/ipv6/ip6_input.c:536)
[  642.037628][    C1]  ? ip6_rcv_core (./include/linux/skbuff.h:3395 net/ipv6/ip6_input.c:332)
[  642.037772][    C1]  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))
[  642.037876][    C1]  ? ip6_rcv_core (net/ipv6/ip6_input.c:345)
[  642.038023][    C1]  ? mark_usage (kernel/locking/lockdep.c:4674 (discriminator 1))
[  642.038151][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  642.038283][    C1]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[  642.038418][    C1]  __netif_receive_skb_one_core (net/core/dev.c:6202)
[  642.038585][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[  642.038734][    C1]  ? __netif_receive_skb_list_core (net/core/dev.c:6202)
[  642.038903][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  642.039045][    C1]  process_backlog (./include/linux/rcupdate.h:867 net/core/dev.c:6674)
[  642.039184][    C1]  __napi_poll (net/core/dev.c:7737)
[  642.039289][    C1]  net_rx_action (net/core/dev.c:7800 net/core/dev.c:7957)
[  642.039429][    C1]  ? __napi_poll (net/core/dev.c:7919)
[  642.039578][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  642.039715][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[  642.039857][    C1]  ? __run_timers (kernel/time/timer.c:2402)
[  642.040016][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  642.040188][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  642.040352][    C1]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  642.040520][    C1]  ? _local_bh_enable (kernel/softirq.c:580)
[  642.040688][    C1]  ? _local_bh_enable (kernel/softirq.c:580)
[  642.040851][    C1]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  642.040978][    C1]  </IRQ>
[  642.041061][    C1]  <TASK>
[  642.041144][    C1]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:909 (discriminator 2) net/core/dev.c:4905 (discriminator 2))
[  642.041307][    C1]  __local_bh_enable_ip (kernel/softirq.c:450)
[  642.041481][    C1]  __dev_queue_xmit (net/core/dev.c:4906)
[  642.041656][    C1]  ? _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)
[  642.041821][    C1]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[  642.041990][    C1]  ? _copy_from_iter_flushcache (lib/iov_iter.c:266)
[  642.042187][    C1]  ? 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))
[  642.042352][    C1]  ? netdev_core_pick_tx (net/core/dev.c:4767)
[  642.042523][    C1]  ? packet_release (net/packet/af_packet.c:1924)
[  642.042698][    C1]  packet_snd (net/packet/af_packet.c:3077 (discriminator 1))
[  642.042865][    C1]  ? tpacket_snd (net/packet/af_packet.c:2941)
[  642.043026][    C1]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  642.043192][    C1]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  642.043355][    C1]  ? __might_fault (mm/memory.c:7230 (discriminator 6))
[  642.043522][    C1]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  642.043691][    C1]  ? __ia32_sys_getpeername (net/socket.c:2232)
[  642.043857][    C1]  ? sock_ioctl (net/socket.c:1435)
[  642.044026][    C1]  ? __sys_setsockopt (net/socket.c:2406 (discriminator 1))
[  642.044190][    C1]  __x64_sys_sendto (net/socket.c:2272 (discriminator 1) net/socket.c:2268 (discriminator 1) net/socket.c:2268 (discriminator 1))
[  642.044352][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 24))
[  642.044566][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  642.044739][    C1]  ? 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)
[  642.044904][    C1]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  642.045067][    C1]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:106 (discriminator 9))
[  642.045233][    C1]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  642.045397][    C1]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  642.045605][    C1] RIP: 0033:0x7f101ba3f22e
[  642.045775][    C1] 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
[  642.046351][    C1] RSP: 002b:00007ffc5620f550 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  642.046609][    C1] RAX: ffffffffffffffda RBX: 000055beba771b52 RCX: 00007f101ba3f22e
[  642.046853][    C1] RDX: 000000000000008e RSI: 000055beba771b52 RDI: 0000000000000005
[  642.047096][    C1] RBP: 00007ffc5620f560 R08: 00007ffc5620f5b0 R09: 0000000000000014
[  642.047339][    C1] R10: 0000000000000000 R11: 0000000000000202 R12: 000055beba771830


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