======================================
| xx__-> [  194.005316][    C3] ==================================================================
| [  194.005632][    C3] BUG: KASAN: slab-out-of-bounds in tcp_v6_send_response (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/net/inet_sock.h:411 net/ipv6/tcp_ipv6.c:983)
| [  194.005879][    C3] Read of size 8 at addr ff1100000976ba98 by task reuseport_bpf/5114
| [  194.006134][    C3]
[  194.006228][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  194.006230][    C3] Call Trace:
[  194.006232][    C3]  <IRQ>
[  194.006233][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  194.006238][    C3]  print_address_description.constprop.0 (mm/kasan/report.c:378)
[  194.006243][    C3]  print_report (mm/kasan/report.c:482)
[  194.006244][    C3]  ? __virt_addr_valid (./include/linux/rcupdate.h:948 ./include/linux/mmzone.h:2276 arch/x86/mm/physaddr.c:54)
[  194.006247][    C3]  ? __virt_addr_valid (./include/linux/rcupdate.h:974 (discriminator 1) ./include/linux/mmzone.h:2286 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))
[  194.006249][    C3]  kasan_report (mm/kasan/report.c:595)
[  194.006252][    C3]  ? tcp_v6_send_response (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/net/inet_sock.h:411 net/ipv6/tcp_ipv6.c:983)
[  194.006254][    C3]  ? tcp_v6_send_response (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/net/inet_sock.h:411 net/ipv6/tcp_ipv6.c:983)
[  194.006257][    C3]  kasan_check_range (mm/kasan/generic.c:186 mm/kasan/generic.c:200)
[  194.006258][    C3]  ? make_kuid (kernel/user_namespace.c:340 kernel/user_namespace.c:425)
[  194.006261][    C3]  tcp_v6_send_response (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/net/inet_sock.h:411 net/ipv6/tcp_ipv6.c:983)
[  194.006263][    C3]  ? __mod_timer (kernel/time/timer.c:1139 (discriminator 3))
[  194.006266][    C3]  ? tcp_v6_send_synack (./include/net/inet_sock.h:338 (discriminator 1))
[  194.006268][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  194.006271][    C3]  ? logarithmic_accumulation.constprop.0 (kernel/time/timekeeping.c:2518 (discriminator 1) kernel/time/timekeeping.c:2568 (discriminator 1))
[  194.006274][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  194.006276][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  194.006279][    C3]  tcp_v6_rcv (net/ipv6/tcp_ipv6.c:1149 net/ipv6/tcp_ipv6.c:1201 net/ipv6/tcp_ipv6.c:1993)
[  194.006283][    C3]  ? tcp_v6_syn_recv_sock (./include/net/sock.h:1574)
[  194.006287][    C3]  ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:479)
[  194.006291][    C3]  ip6_input_finish (net/ipv6/ip6_input.c:534)
[  194.006292][    C3]  ip6_input (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv6/ip6_input.c:545)
[  194.006293][    C3]  ? ip6_input_finish (net/ipv6/ip6_input.c:527 (discriminator 46))
[  194.006294][    C3]  ? ip6_rcv_core (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/ipv6/ip6_input.c:328 (discriminator 2))
[  194.006296][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  194.006298][    C3]  ? ip6_rcv_core (./include/linux/rcupdate.h:882 net/ipv6/ip6_input.c:328)
[  194.006300][    C3]  ipv6_rcv (./include/net/dst.h:480 (discriminator 4) net/ipv6/ip6_input.c:119 (discriminator 4) ./include/linux/netfilter.h:325 (discriminator 4) ./include/linux/netfilter.h:319 (discriminator 4) net/ipv6/ip6_input.c:351 (discriminator 4))
[  194.006301][    C3]  ? ip6_rcv_core (net/ipv6/ip6_input.c:211 (discriminator 96))
[  194.006303][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  194.006304][    C3]  ? __update_load_avg_cfs_rq (kernel/sched/pelt.c:329)
[  194.006307][    C3]  ? mark_usage (kernel/locking/lockdep.c:4690)
[  194.006308][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  194.006310][    C3]  ? irq_matrix_free (kernel/irq/matrix.c:429 (discriminator 2))
[  194.006313][    C3]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2))
[  194.006317][    C3]  __netif_receive_skb_one_core (net/core/dev.c:6264)
[  194.006319][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  194.006320][    C3]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2))
[  194.006322][    C3]  ? __netif_receive_skb_list_core (net/core/dev.c:6310)
[  194.006324][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  194.006326][    C3]  process_backlog (net/core/dev.c:6728)
[  194.006329][    C3]  __napi_poll (net/core/dev.c:7787)
[  194.006331][    C3]  net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007)
[  194.006334][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  194.006335][    C3]  ? __napi_poll (./include/net/gro.h:507)
[  194.006339][    C3]  ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859)
[  194.006341][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  194.006343][    C3]  handle_softirqs (kernel/softirq.c:645)
[  194.006347][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[  194.006348][    C3]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  194.006351][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  194.006352][    C3]  ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2))
[  194.006354][    C3]  do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
[  194.006355][    C3]  </IRQ>
[  194.006356][    C3]  <TASK>
[  194.006357][    C3]  __local_bh_enable_ip (kernel/softirq.c:473)
[  194.006358][    C3]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2))
[  194.006360][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  194.006363][    C3]  ? netdev_core_pick_tx (net/core/dev.c:4784)
[  194.006365][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:124 (discriminator 1) kernel/locking/lockdep.c:5884 (discriminator 1))
[  194.006366][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  194.006368][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  194.006370][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  194.006371][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  194.006372][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  194.006374][    C3]  ? neigh_hh_output (./include/net/neighbour.h:525)
[  194.006377][    C3]  ip6_finish_output2 (./include/net/neighbour.h:558 net/ipv6/ip6_output.c:138)
[  194.006380][    C3]  ? ip6_dst_lookup (net/ipv6/ip6_output.c:1297)
[  194.006382][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  194.006383][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  194.006385][    C3]  ? ip6_mtu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip6_route.h:384 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2))
[  194.006388][    C3]  ip6_finish_output (net/ipv6/ip6_output.c:210 net/ipv6/ip6_output.c:221)
[  194.006391][    C3]  ip6_output (./include/linux/netfilter.h:314 net/ipv6/ip6_output.c:248)
[  194.006393][    C3]  ? ip6_finish_output (./include/linux/skbuff.h:1165)
[  194.006395][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  194.006397][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  194.006398][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  194.006400][    C3]  ip6_xmit (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:325 (discriminator 4) ./include/linux/netfilter.h:319 (discriminator 4) net/ipv6/ip6_output.c:381 (discriminator 4))
[  194.006402][    C3]  ? mark_usage (kernel/locking/lockdep.c:4690)
[  194.006404][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  194.006406][    C3]  ? ip6_autoflowlabel (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  194.006408][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  194.006410][    C3]  ? mark_usage (kernel/locking/lockdep.c:4690)
[  194.006412][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  194.006414][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  194.006415][    C3]  ? inet6_csk_xmit (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) net/ipv6/inet6_connection_sock.c:120 (discriminator 2))
[  194.006418][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  194.006419][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  194.006421][    C3]  inet6_csk_xmit (net/ipv6/inet6_connection_sock.c:123 (discriminator 13))
[  194.006424][    C3]  __tcp_transmit_skb (net/ipv4/tcp_output.c:1716)
[  194.006428][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  194.006430][    C3]  ? __tcp_select_window (./include/net/tcp.h:1755)
[  194.006432][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  194.006433][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  194.006436][    C3]  tcp_write_xmit (net/ipv4/tcp_output.c:1734 net/ipv4/tcp_output.c:3070)
[  194.006440][    C3]  ? tcp_retrans_try_collapse (./arch/x86/include/asm/atomic.h:23)
[  194.006442][    C3]  ? tcp_set_state (net/ipv4/tcp.c:3028)
[  194.006445][    C3]  __tcp_push_pending_frames (net/ipv4/tcp_output.c:3253 (discriminator 1))
[  194.006447][    C3]  __tcp_close (net/ipv4/tcp.c:3220)
[  194.006448][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  194.006450][    C3]  tcp_close (net/ipv4/tcp.c:3311)
[  194.006452][    C3]  inet_release (net/ipv4/af_inet.c:442)
[  194.006455][    C3]  ? fcntl_setlk (fs/locks.c:2556)
[  194.006458][    C3]  __sock_release (net/socket.c:735)
[  194.006461][    C3]  sock_close (net/socket.c:1526 (discriminator 1))
[  194.006462][    C3]  __fput (fs/file_table.c:512)
[  194.006465][    C3]  fput_close_sync (fs/file_table.c:617)
[  194.006467][    C3]  ? alloc_file_clone (fs/file_table.c:479)
[  194.006469][    C3]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  194.006471][    C3]  __x64_sys_close (fs/open.c:1560 fs/open.c:1545 fs/open.c:1545)
[  194.006473][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  194.006476][    C3]  ? irq_exit_rcu (kernel/softirq.c:786)
[  194.006477][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  194.006480][    C3] RIP: 0033:0x7f64c27f654e
[  194.006483][    C3] Code: 4d 89 d8 e8 b4 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 b4 bd 00 00       	call   0xbdbc
   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
[  194.006484][    C3] RSP: 002b:00007ffc2f3e3d80 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
[  194.006488][    C3] RAX: ffffffffffffffda RBX: 00007ffc2f3e3ec0 RCX: 00007f64c27f654e
[  194.006489][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000036
[  194.006490][    C3] RBP: 00007ffc2f3e3d90 R08: 0000000000000000 R09: 0000000000000000
[  194.006491][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000023fd


Finger prints:
print_report:kasan_report:kasan_check_range:tcp_v6_send_response:tcp_v6_rcv