======================================
| [  674.035056][ T5257] br11: port 1(veth1.11) entered blocking state
| [  674.035354][ T5257] br11: port 1(veth1.11) entered forwarding state
| [  682.675023][ T5304] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [  682.675447][ T5304] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
[  682.675910][ T5304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 682.676095][ T5304] RIP: 0010:ets_class_leaf (net/sched/sch_ets.c:273) sch_ets
[ 682.676291][ T5304] Code: 83 fe 10 77 53 48 8d 04 b6 48 c1 e0 04 48 8d 9c 03 00 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 21 48 8b 43 10 48 83 c4 08 5b c3 cc cc cc cc 31 db
All code
========
   0:	83 fe 10             	cmp    $0x10,%esi
   3:	77 53                	ja     0x58
   5:	48 8d 04 b6          	lea    (%rsi,%rsi,4),%rax
   9:	48 c1 e0 04          	shl    $0x4,%rax
   d:	48 8d 9c 03 00 03 00 	lea    0x300(%rbx,%rax,1),%rbx
  14:	00 
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df 
  1f:	48 8d 7b 10          	lea    0x10(%rbx),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
  2a:*	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)		<-- trapping instruction
  2e:	75 21                	jne    0x51
  30:	48 8b 43 10          	mov    0x10(%rbx),%rax
  34:	48 83 c4 08          	add    $0x8,%rsp
  38:	5b                   	pop    %rbx
  39:	c3                   	ret
  3a:	cc                   	int3
  3b:	cc                   	int3
  3c:	cc                   	int3
  3d:	cc                   	int3
  3e:	31 db                	xor    %ebx,%ebx

Code starting with the faulting instruction
===========================================
   0:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   4:	75 21                	jne    0x27
   6:	48 8b 43 10          	mov    0x10(%rbx),%rax
   a:	48 83 c4 08          	add    $0x8,%rsp
   e:	5b                   	pop    %rbx
   f:	c3                   	ret
  10:	cc                   	int3
  11:	cc                   	int3
  12:	cc                   	int3
  13:	cc                   	int3
  14:	31 db                	xor    %ebx,%ebx
[  682.676810][ T5304] RSP: 0018:ffffc90000f97528 EFLAGS: 00010202
[  682.676998][ T5304] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1100127b15c
[  682.677216][ T5304] RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000000000000010
[  682.677440][ T5304] RBP: ffff88800bcb4000 R08: ffff88800ea6202e R09: 0000000000000434
[  682.677666][ T5304] R10: ffffc90000f97850 R11: 0000000000000002 R12: ffff8880093d8800
[  682.677889][ T5304] R13: 0000000000100003 R14: ffff88800ea6201c R15: ffff88800ea62000
[  682.678118][ T5304] FS:  00007f1d2bb6d800(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  682.678375][ T5304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  682.678560][ T5304] CR2: 000000003c2a6000 CR3: 000000000db0e002 CR4: 0000000000772ef0
[  682.678786][ T5304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  682.679007][ T5304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  682.679230][ T5304] PKRU: 55555554
[  682.679348][ T5304] Call Trace:
[  682.679460][ T5304]  <TASK>
[ 682.679538][ T5304] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460)
[ 682.679663][ T5304] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693)
[ 682.679818][ T5304] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617)
[ 682.679971][ T5304] ? ets_class_leaf (net/sched/sch_ets.c:273) sch_ets
[ 682.680117][ T5304] tc_modify_qdisc (net/sched/sch_api.c:1642)
[ 682.680270][ T5304] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 37))
[ 682.680425][ T5304] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 682.680570][ T5304] ? __pfx_tc_modify_qdisc (net/sched/sch_api.c:1609)
[ 682.680726][ T5304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6920)
[ 682.680878][ T5304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814)
[ 682.681026][ T5304] ? 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)
[ 682.681172][ T5304] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 682.681287][ T5304] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 682.681436][ T5304] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 682.681589][ T5304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814)
[ 682.681741][ T5304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 682.681892][ T5304] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 682.682041][ T5304] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[ 682.682193][ T5304] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 682.682340][ T5304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 682.682486][ T5304] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 682.682637][ T5304] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 682.682792][ T5304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 682.682941][ T5304] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2596)
[ 682.683091][ T5304] ? __pfx_____sys_sendmsg (net/socket.c:2542)
[ 682.683238][ T5304] ? __pfx_copy_msghdr_from_user (net/socket.c:2522)
[ 682.683433][ T5304] ___sys_sendmsg (net/socket.c:2652)
[ 682.683583][ T5304] ? __pfx____sys_sendmsg (net/socket.c:2639)
[ 682.683731][ T5304] ? ___sys_recvmsg (net/socket.c:2848)
[ 682.683892][ T5304] ? __pfx____sys_recvmsg (net/socket.c:2848)
[ 682.684043][ T5304] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 682.684191][ T5304] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 682.684342][ T5304] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 682.684495][ T5304] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 682.684646][ T5304] __sys_sendmsg (net/socket.c:2682)
[ 682.684793][ T5304] ? __pfx___sys_sendmsg (net/socket.c:2667)
[ 682.684945][ T5304] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 682.685092][ T5304] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 682.685248][ T5304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  682.685433][ T5304] RIP: 0033:0x7f1d2be959a7
[ 682.685584][ T5304] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  682.686107][ T5304] RSP: 002b:00007ffef12df568 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  682.686338][ T5304] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f1d2be959a7
[  682.686562][ T5304] RDX: 0000000000000000 RSI: 00007ffef12df5d0 RDI: 0000000000000005
[  682.686785][ T5304] RBP: 000000000047d8c0 R08: 0000000000000014 R09: 0000000000000000
[  682.687013][ T5304] R10: 00007f1d2bd4e708 R11: 0000000000000246 R12: 00007ffef12ef8b0


Finger prints:
ets_class_leaf:tc_modify_qdisc:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast