BUG: unable to handle page fault for address: fffffffffffffff0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD db82067 P4D db82067 PUD db84067 PMD 0 
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 5919 Comm: kworker/u8:8 Not tainted 6.13.0-rc2-syzkaller-00362-g2d8308bf5b67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: netns cleanup_net
RIP: 0010:__hlist_del include/linux/list.h:977 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:516 [inline]
RIP: 0010:netdev_name_node_del net/core/dev.c:303 [inline]
RIP: 0010:unlist_netdevice+0x132/0x610 net/core/dev.c:433
Code: 00 00 00 fc ff df 49 bd 22 01 00 00 00 00 ad de e8 23 a6 9b f8 48 89 d8 48 c1 e8 03 80 3c 28 00 0f 85 e7 03 00 00 48 8d 7b 08 <4c> 8b 33 48 89 fa 48 c1 ea 03 80 3c 2a 00 0f 85 ae 03 00 00 4c 8b
RSP: 0018:ffffc90004347a18 EFLAGS: 00010246
RAX: 1ffffffffffffffe RBX: fffffffffffffff0 RCX: 0000000000000000
RDX: ffff888025a49e00 RSI: ffffffff88fd97cd RDI: fffffffffffffff8
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffed100fdd4064
R10: ffff88807eea0323 R11: 0000000000000004 R12: ffff88802a2b6000
R13: dead000000000122 R14: ffff88807f826188 R15: ffffc90004347c58
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff0 CR3: 000000002c910000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unregister_netdevice_many_notify+0x4d0/0x1e60 net/core/dev.c:11504
 cleanup_net+0x58c/0xbd0 net/core/net_namespace.c:643
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
CR2: fffffffffffffff0
---[ end trace 0000000000000000 ]---
RIP: 0010:__hlist_del include/linux/list.h:977 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:516 [inline]
RIP: 0010:netdev_name_node_del net/core/dev.c:303 [inline]
RIP: 0010:unlist_netdevice+0x132/0x610 net/core/dev.c:433
Code: 00 00 00 fc ff df 49 bd 22 01 00 00 00 00 ad de e8 23 a6 9b f8 48 89 d8 48 c1 e8 03 80 3c 28 00 0f 85 e7 03 00 00 48 8d 7b 08 <4c> 8b 33 48 89 fa 48 c1 ea 03 80 3c 2a 00 0f 85 ae 03 00 00 4c 8b
RSP: 0018:ffffc90004347a18 EFLAGS: 00010246
RAX: 1ffffffffffffffe RBX: fffffffffffffff0 RCX: 0000000000000000
RDX: ffff888025a49e00 RSI: ffffffff88fd97cd RDI: fffffffffffffff8
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffed100fdd4064
R10: ffff88807eea0323 R11: 0000000000000004 R12: ffff88802a2b6000
R13: dead000000000122 R14: ffff88807f826188 R15: ffffc90004347c58
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff0 CR3: 000000002c910000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 5 bytes skipped:
   0:	df 49 bd             	fisttps -0x43(%rcx)
   3:	22 01                	and    (%rcx),%al
   5:	00 00                	add    %al,(%rax)
   7:	00 00                	add    %al,(%rax)
   9:	ad                   	lods   %ds:(%rsi),%eax
   a:	de e8                	fsubrp %st,%st(0)
   c:	23 a6 9b f8 48 89    	and    -0x76b70765(%rsi),%esp
  12:	d8 48 c1             	fmuls  -0x3f(%rax)
  15:	e8 03 80 3c 28       	call   0x283c801d
  1a:	00 0f                	add    %cl,(%rdi)
  1c:	85 e7                	test   %esp,%edi
  1e:	03 00                	add    (%rax),%eax
  20:	00 48 8d             	add    %cl,-0x73(%rax)
  23:	7b 08                	jnp    0x2d
* 25:	4c 8b 33             	mov    (%rbx),%r14 <-- trapping instruction
  28:	48 89 fa             	mov    %rdi,%rdx
  2b:	48 c1 ea 03          	shr    $0x3,%rdx
  2f:	80 3c 2a 00          	cmpb   $0x0,(%rdx,%rbp,1)
  33:	0f 85 ae 03 00 00    	jne    0x3e7
  39:	4c                   	rex.WR
  3a:	8b                   	.byte 0x8b