======================================
| [  249.582710][ T5677] ==================================================================
| [  249.582883][ T5677] BUG: KASAN: slab-out-of-bounds in devlink_nl_dumpit (net/devlink/netlink.c:355)
| [  249.583032][ T5677] Read of size 8 at addr ff1100000a078520 by task devlink/5677
| [  249.583168][ T5677]
[  249.583222][ T5677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  249.583223][ T5677] Call Trace:
[  249.583225][ T5677]  <TASK>
[  249.583226][ T5677]  dump_stack_lvl (lib/dump_stack.c:122)
[  249.583232][ T5677]  print_address_description.constprop.0 (mm/kasan/report.c:379)
[  249.583237][ T5677]  print_report (mm/kasan/report.c:483)
[  249.583239][ T5677]  ? devlink_nl_dumpit (net/devlink/netlink.c:355)
[  249.583241][ T5677]  ? __virt_addr_valid (./include/linux/rcupdate.h:975 (discriminator 3) ./include/linux/mmzone.h:2207 (discriminator 3) arch/x86/mm/physaddr.c:54 (discriminator 3))
[  249.583245][ T5677]  ? devlink_nl_dumpit (net/devlink/netlink.c:355)
[  249.583246][ T5677]  kasan_report (mm/kasan/report.c:597)
[  249.583250][ T5677]  ? devlink_nl_dumpit (net/devlink/netlink.c:355)
[  249.583253][ T5677]  devlink_nl_dumpit (net/devlink/netlink.c:355)
[  249.583254][ T5677]  ? devlink_nl_fill (net/devlink/dev.c:246)
[  249.583257][ T5677]  genl_dumpit (net/netlink/genetlink.c:1028)
[  249.583261][ T5677]  netlink_dump (net/netlink/af_netlink.c:2325 (discriminator 1))
[  249.583264][ T5677]  ? netlink_lookup (net/netlink/af_netlink.c:2254)
[  249.583267][ T5677]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[  249.583270][ T5677]  ? genl_start (net/netlink/genetlink.c:1002)
[  249.583272][ T5677]  __netlink_dump_start (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/sock.h:2010 net/netlink/af_netlink.c:2442)
[  249.583275][ T5677]  genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:59 net/netlink/genetlink.c:1077)
[  249.583277][ T5677]  ? genl_dumpit (net/netlink/genetlink.c:1057)
[  249.583279][ T5677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  249.583282][ T5677]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  249.583285][ T5677]  ? genl_cmd_full_to_split (net/netlink/genetlink.c:305)
[  249.583287][ T5677]  ? genl_family_rcv_msg_doit (net/netlink/genetlink.c:968)
[  249.583289][ T5677]  ? genl_release (net/netlink/genetlink.c:1018)
[  249.583290][ T5677]  ? genl_rcv_msg (net/netlink/genetlink.c:1033)
[  249.583293][ T5677]  ? is_bpf_text_address (kernel/bpf/core.c:753)
[  249.583295][ T5677]  ? kernel_text_address (kernel/extable.c:125 (discriminator 1) kernel/extable.c:94 (discriminator 1))
[  249.583298][ T5677]  genl_family_rcv_msg (net/netlink/genetlink.c:1192)
[  249.583300][ T5677]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1160)
[  249.583302][ T5677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 2) kernel/rcu/tree.c:4032 (discriminator 2))
[  249.583306][ T5677]  ? devlink_nl_get_doit (net/devlink/dev.c:253)
[  249.583308][ T5677]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  249.583310][ T5677]  genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211)
[  249.583312][ T5677]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  249.583314][ T5677]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1201)
[  249.583316][ T5677]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  249.583319][ T5677]  ? netlink_deliver_tap (./include/linux/rcupdate.h:322 (discriminator 1) ./include/linux/rcupdate.h:881 (discriminator 1) ./include/net/netns/generic.h:48 (discriminator 1) net/netlink/af_netlink.c:333 (discriminator 1))
[  249.583321][ T5677]  ? netlink_deliver_tap (./include/linux/rcupdate.h:322 (discriminator 1) ./include/linux/rcupdate.h:881 (discriminator 1) net/netlink/af_netlink.c:340 (discriminator 1))
[  249.583323][ T5677]  genl_rcv (net/netlink/genetlink.c:1220)
[  249.583325][ T5677]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  249.583327][ T5677]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  249.583329][ T5677]  ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 1) net/core/skbuff.c:695 (discriminator 1))
[  249.583331][ T5677]  ? napi_skb_cache_get (net/core/skbuff.c:674)
[  249.583333][ T5677]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  249.583335][ T5677]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  249.583337][ T5677]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  249.583339][ T5677]  ? __might_fault (mm/memory.c:7217 (discriminator 4))
[  249.583342][ T5677]  ? __might_fault (mm/memory.c:7217 (discriminator 4))
[  249.583344][ T5677]  __sys_sendto (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:2205 (discriminator 1))
[  249.583348][ T5677]  ? __ia32_sys_getpeername (net/socket.c:2172)
[  249.583353][ T5677]  ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1480 arch/x86/mm/fault.c:1527)
[  249.583358][ T5677]  __x64_sys_sendto (net/socket.c:2212 (discriminator 1) net/socket.c:2208 (discriminator 1) net/socket.c:2208 (discriminator 1))
[  249.583360][ T5677]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  249.583363][ T5677]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  249.583364][ T5677]  ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:186 arch/x86/entry/syscall_64.c:90)
[  249.583366][ T5677]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  249.583367][ T5677]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  249.583369][ T5677]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  249.583371][ T5677] RIP: 0033:0x7f6cc5262c5e
[  249.583374][ T5677] Code: 4d 89 d8 e8 34 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 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 34 bd 00 00       	call   0xbd3c
   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 13 ff ff ff       	call   0xffffffffffffff4c
  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 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  249.583376][ T5677] RSP: 002b:00007ffc370cc9f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  249.583380][ T5677] RAX: ffffffffffffffda RBX: 000000000e4a9310 RCX: 00007f6cc5262c5e
[  249.583382][ T5677] RDX: 0000000000000014 RSI: 000000000e4a9530 RDI: 0000000000000005
[  249.583382][ T5677] RBP: 00007ffc370cca00 R08: 00007f6cc54ed980 R09: 000000000000000c
[  249.583383][ T5677] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000407ef0


Finger prints:
print_report:kasan_report:devlink_nl_dumpit:genl_dumpit:netlink_dump