======================================
| [ 1586.907401][ T7626] GACT probability NOT on
| [ 1590.596433][    C3] ------------[ cut here ]------------
| [ 1590.596750][    C3] kernel BUG at net/core/skbuff.c:3505!
| [ 1590.596970][    C3] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 1590.597411][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1590.597762][ C3] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 1590.597930][ C3] Code: 44 89 14 24 ff d0 0f 1f 00 4c 8b 44 24 08 44 8b 14 24 41 89 c1 eb a5 89 e8 e9 2d fe ff ff 41 ff d5 0f 1f 00 e9 1f fa ff ff 90 <0f> 0b 48 8b 7c 24 10 89 54 24 48 48 89 44 24 40 e8 e7 53 8d fe 8b
All code
========
   0:	44 89 14 24          	mov    %r10d,(%rsp)
   4:	ff d0                	call   *%rax
   6:	0f 1f 00             	nopl   (%rax)
   9:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
   e:	44 8b 14 24          	mov    (%rsp),%r10d
  12:	41 89 c1             	mov    %eax,%r9d
  15:	eb a5                	jmp    0xffffffffffffffbc
  17:	89 e8                	mov    %ebp,%eax
  19:	e9 2d fe ff ff       	jmp    0xfffffffffffffe4b
  1e:	41 ff d5             	call   *%r13
  21:	0f 1f 00             	nopl   (%rax)
  24:	e9 1f fa ff ff       	jmp    0xfffffffffffffa48
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
  31:	89 54 24 48          	mov    %edx,0x48(%rsp)
  35:	48 89 44 24 40       	mov    %rax,0x40(%rsp)
  3a:	e8 e7 53 8d fe       	call   0xfffffffffe8d5426
  3f:	8b                   	.byte 0x8b

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
   7:	89 54 24 48          	mov    %edx,0x48(%rsp)
   b:	48 89 44 24 40       	mov    %rax,0x40(%rsp)
  10:	e8 e7 53 8d fe       	call   0xfffffffffe8d53fc
  15:	8b                   	.byte 0x8b
[ 1590.598481][    C3] RSP: 0018:ffffc90000278920 EFLAGS: 00010206
[ 1590.598681][    C3] RAX: 0000000000002b7b RBX: 0000000000000008 RCX: 1ffff110015d7091
[ 1590.598918][    C3] RDX: 00000000000000b2 RSI: dffffc0000000000 RDI: ffff88800aeb8488
[ 1590.599157][    C3] RBP: 0000000000002b7b R08: 0000000000000008 R09: fffffbfff0cea5a2
[ 1590.599389][    C3] R10: ffffffff86752d17 R11: ffffc90000278659 R12: 0000000000000008
[ 1590.599637][    C3] R13: 0000000000000000 R14: ffffc900002789e0 R15: ffff888001c8b948
[ 1590.599868][    C3] FS:  00007f769055b740(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[ 1590.600134][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1590.600329][    C3] CR2: 00007ffe18082000 CR3: 00000000029b8002 CR4: 0000000000770ef0
[ 1590.600557][    C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1590.600793][    C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1590.601021][    C3] PKRU: 55555554
[ 1590.601137][    C3] Call Trace:
[ 1590.601256][    C3]  <IRQ>
[ 1590.601335][ C3] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[ 1590.601454][ C3] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[ 1590.601571][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 1590.601726][ C3] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[ 1590.601880][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 1590.602036][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 1590.602188][ C3] ? handle_invalid_op (arch/x86/kernel/traps.c:213) 
[ 1590.602342][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 1590.602495][ C3] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[ 1590.602650][ C3] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[ 1590.602809][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 1590.602968][ C3] __skb_checksum_complete (net/core/skbuff.c:3643) 
[ 1590.603122][ C3] ? __pfx___skb_checksum_complete (net/core/skbuff.c:3637) 
[ 1590.603315][ C3] ? __pfx_csum_partial_ext (./include/net/checksum.h:120) 
[ 1590.603468][ C3] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103) 
[ 1590.603624][ C3] icmp_rcv (./include/linux/skbuff.h:4567 net/ipv4/icmp.c:1213) 
[ 1590.603742][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1590.603898][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1590.604052][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 1590.604204][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1590.604360][ C3] ? ip_rcv_finish_core.constprop.0 (net/ipv4/ip_input.c:367) 
[ 1590.604554][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) 
[ 1590.604669][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 1590.604821][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 1590.604975][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 1590.605130][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 1590.605283][ C3] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) 
[ 1590.605481][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) 
[ 1590.605673][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1590.605829][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1590.605980][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 1590.606134][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) 
[ 1590.606287][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 1590.606441][ C3] __napi_poll.constprop.0 (net/core/dev.c:6703) 
[ 1590.606595][ C3] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) 
[ 1590.606750][ C3] ? __pfx_net_rx_action (net/core/dev.c:6850) 
[ 1590.606903][ C3] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 1590.607058][ C3] ? ktime_get (kernel/time/timekeeping.c:195 (discriminator 4) kernel/time/timekeeping.c:289 (discriminator 4) kernel/time/timekeeping.c:388 (discriminator 4) kernel/time/timekeeping.c:848 (discriminator 4)) 
[ 1590.607174][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1828) 
[ 1590.607329][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1828) 
[ 1590.607482][ C3] __do_softirq (kernel/softirq.c:553) 
[ 1590.607637][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) 
[ 1590.607790][ C3] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[ 1590.607907][    C3]  </IRQ>
[ 1590.607986][    C3]  <TASK>
[ 1590.608063][ C3] __local_bh_enable_ip (kernel/softirq.c:381) 
[ 1590.608221][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) 
[ 1590.608373][ C3] __dev_queue_xmit (net/core/dev.c:4400) 
[ 1590.608527][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 1590.608680][ C3] ? ip_finish_output2 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/ipv4/ip_output.c:228) 
[ 1590.608832][ C3] ? eth_header (net/ethernet/eth.c:100) 
[ 1590.608985][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) 
[ 1590.609140][ C3] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[ 1590.609294][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 1590.609453][ C3] ? __ip_finish_output (./include/linux/skbuff.h:1624 ./include/linux/skbuff.h:4942 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 1590.609607][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) 
[ 1590.609722][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 1590.609874][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1590.610026][ C3] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 1590.610183][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 1590.610373][ C3] NF_HOOK.constprop.0 (./include/linux/skbuff.h:1624 ./include/linux/skbuff.h:4992 net/ipv4/ip_forward.c:99) 
[ 1590.610529][ C3] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308) 
[ 1590.610682][ C3] ? __get_random_u32_below (drivers/char/random.c:557) 
[ 1590.610837][ C3] ? __ip_select_ident (./arch/x86/include/asm/atomic.h:85 ./include/linux/atomic/atomic-arch-fallback.h:564 ./include/linux/atomic/atomic-instrumented.h:124 net/ipv4/route.c:480 net/ipv4/route.c:496) 
[ 1590.610990][ C3] raw_send_hdrinc (net/ipv4/raw.c:408) 
[ 1590.611143][ C3] ? __pfx_raw_send_hdrinc (net/ipv4/raw.c:323) 
[ 1590.611293][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 1590.611448][ C3] raw_sendmsg (net/ipv4/raw.c:634) 
[ 1590.611600][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 1590.611756][ C3] ? __pfx_raw_sendmsg (net/ipv4/raw.c:476) 
[ 1590.611908][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 1590.612062][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 1590.612217][ C3] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 1590.612368][ C3] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 1590.612520][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 1590.612674][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1590.612828][ C3] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 1590.612981][ C3] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 1590.613139][ C3] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) 
[ 1590.613293][ C3] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) 
[ 1590.613447][ C3] ? __pfx___sys_sendto (net/socket.c:2161) 
[ 1590.613602][ C3] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1590.613757][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 1590.613913][ C3] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1590.614067][ C3] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 1590.614221][ C3] ? ktime_get (kernel/time/timekeeping.c:195 (discriminator 4) kernel/time/timekeeping.c:289 (discriminator 4) kernel/time/timekeeping.c:388 (discriminator 4) kernel/time/timekeeping.c:848 (discriminator 4)) 
[ 1590.614341][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1828) 
[ 1590.614495][ C3] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 1590.614684][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1828) 
[ 1590.614839][ C3] __x64_sys_sendto (net/socket.c:2199) 
[ 1590.614991][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 1590.615180][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1590.615336][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[ 1590.615539][    C3] RIP: 0033:0x7f76907b585a
[ 1590.615700][ C3] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[ 1590.616244][    C3] RSP: 002b:00007ffe18089838 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 1590.616476][    C3] RAX: ffffffffffffffda RBX: 000000000189a9d0 RCX: 00007f76907b585a
[ 1590.616712][    C3] RDX: 0000000000000080 RSI: 000000000189ac90 RDI: 0000000000000005
[ 1590.616944][    C3] RBP: 000000000189a9d0 R08: 00007ffe18089840 R09: 0000000000000010
[ 1590.617175][    C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000080


Finger prints:
__skb_checksum:__skb_checksum_complete:icmp_rcv:ip_protocol_deliver_rcu