list_del corruption, ffff88807becd890->next is NULL
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6007 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc cc 48 c7 c7 a0 fc 29 8c 48 89 de e8 42 ee 63 fc 90 <0f> 0b 48 c7 c7 00 fd 29 8c 48 89 de e8 30 ee 63 fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000a08d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88807becd890 RCX: 45ea1d9b6745f200
RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000a08ae7 R09: 1ffff9200014115c
R10: dffffc0000000000 R11: fffff5200014115d R12: 1ffff1100f7d9b12
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000555567a28500(0000) GS:ffff888125102000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f009df87600 CR3: 000000007a118000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del_init include/linux/list.h:295 [inline]
 dst_destroy+0x202/0x5a0 net/core/dst.c:163
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:unwind_next_frame+0x9f9/0x23c0 arch/x86/kernel/unwind_orc.c:536
Code: 8b 34 24 e9 a9 02 00 00 49 8d 5e 40 48 89 d8 48 c1 e8 03 80 3c 28 00 74 11 48 89 df e8 40 49 b9 00 48 8b 34 24 48 8b 54 24 08 <4c> 8b 23 48 8d 5a 01 48 89 d0 48 c1 e8 03 0f b6 04 28 84 c0 0f 85
RSP: 0018:ffffc90004546418 EFLAGS: 00000246
RAX: 1ffff920008a8ca5 RBX: ffffc90004546528 RCX: ffffffff904f58c8
RDX: ffffffff90cdb084 RSI: ffffffff90cdb088 RDI: ffffffff8c29f900
RBP: dffffc0000000000 R08: 000000000000000d R09: ffffffff8e960620
R10: ffffc90004546538 R11: ffffffff81b11850 R12: ffffffff90cdb089
R13: ffffc90004546538 R14: ffffc900045464e8 R15: ffffc90004546520
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5238 [inline]
 __kmalloc_node_track_caller_noprof+0x4db/0x7b0 mm/slub.c:5346
 kmemdup_noprof+0x2b/0x70 mm/util.c:138
 kmemdup_noprof include/linux/fortify-string.h:763 [inline]
 __addrconf_sysctl_register+0xa7/0x4d0 net/ipv6/addrconf.c:7309
 addrconf_sysctl_register+0x168/0x1c0 net/ipv6/addrconf.c:7375
 ipv6_add_dev+0xd44/0x13c0 net/ipv6/addrconf.c:459
 addrconf_notify+0x771/0x1050 net/ipv6/addrconf.c:3654
 notifier_call_chain+0x1be/0x400 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2288 [inline]
 call_netdevice_notifiers net/core/dev.c:2302 [inline]
 register_netdevice+0x173a/0x1cf0 net/core/dev.c:11461
 veth_newlink+0x67b/0xb70 drivers/net/veth.c:1889
 rtnl_newlink_create+0x329/0xb70 net/core/rtnetlink.c:3840
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x1666/0x1be0 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec+0x18f/0x1d0 net/socket.c:802
 __sock_sendmsg net/socket.c:817 [inline]
 __sys_sendto+0x3ff/0x590 net/socket.c:2286
 __do_sys_sendto net/socket.c:2293 [inline]
 __se_sys_sendto net/socket.c:2289 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2289
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f044135cfce
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffc25a4ec98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000555567a28500 RCX: 00007f044135cfce
RDX: 0000000000000088 RSI: 00007f0442144670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffc25a4ed14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f0442144670 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc cc 48 c7 c7 a0 fc 29 8c 48 89 de e8 42 ee 63 fc 90 <0f> 0b 48 c7 c7 00 fd 29 8c 48 89 de e8 30 ee 63 fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000a08d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88807becd890 RCX: 45ea1d9b6745f200
RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000a08ae7 R09: 1ffff9200014115c
R10: dffffc0000000000 R11: fffff5200014115d R12: 1ffff1100f7d9b12
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000555567a28500(0000) GS:ffff888125102000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f009df87600 CR3: 000000007a118000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	8b 34 24             	mov    (%rsp),%esi
   3:	e9 a9 02 00 00       	jmp    0x2b1
   8:	49 8d 5e 40          	lea    0x40(%r14),%rbx
   c:	48 89 d8             	mov    %rbx,%rax
   f:	48 c1 e8 03          	shr    $0x3,%rax
  13:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
  17:	74 11                	je     0x2a
  19:	48 89 df             	mov    %rbx,%rdi
  1c:	e8 40 49 b9 00       	call   0xb94961
  21:	48 8b 34 24          	mov    (%rsp),%rsi
  25:	48 8b 54 24 08       	mov    0x8(%rsp),%rdx
* 2a:	4c 8b 23             	mov    (%rbx),%r12 <-- trapping instruction
  2d:	48 8d 5a 01          	lea    0x1(%rdx),%rbx
  31:	48 89 d0             	mov    %rdx,%rax
  34:	48 c1 e8 03          	shr    $0x3,%rax
  38:	0f b6 04 28          	movzbl (%rax,%rbp,1),%eax
  3c:	84 c0                	test   %al,%al
  3e:	0f                   	.byte 0xf
  3f:	85                   	.byte 0x85