BUG: kernel NULL pointer dereference, address: 0000000000000002
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8000000024f4c067 P4D 8000000024f4c067 PUD 0 
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 5872 Comm: kworker/0:4 Not tainted 6.14.0-rc4-syzkaller-00169-g1e15510b71c9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: slub_flushwq flush_cpu_slab
RIP: 0010:PagePoisoned include/linux/page-flags.h:294 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1648 [inline]
RIP: 0010:folio_nid include/linux/mm.h:1654 [inline]
RIP: 0010:slab_nid mm/slab.h:201 [inline]
RIP: 0010:deactivate_slab+0x1f/0x370 mm/slub.c:3039
Code: 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 48 49 89 f7 65 48 8b 04 25 28 00 00 00 48 89 44 24 40 <48> 8b 06 48 83 f8 ff 0f 84 12 03 00 00 49 89 fd 48 c1 e8 3a 48 8b
RSP: 0018:ffffc9000421fa38 EFLAGS: 00010292
RAX: 99b20565c45f1100 RBX: 0000000000000202 RCX: ffffffff819d2aaa
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888032fedb40
RBP: 0000000000000000 R08: ffffffff94513877 R09: 1ffffffff28a270e
R10: dffffc0000000000 R11: fffffbfff28a270f R12: 0000607f47666250
R13: ffff88805d595a00 R14: ffff8880b8600000 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000002 CR3: 000000006166a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 flush_slab mm/slub.c:3259 [inline]
 flush_cpu_slab+0x195/0x450 mm/slub.c:3305
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
CR2: 0000000000000002
---[ end trace 0000000000000000 ]---
RIP: 0010:PagePoisoned include/linux/page-flags.h:294 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1648 [inline]
RIP: 0010:folio_nid include/linux/mm.h:1654 [inline]
RIP: 0010:slab_nid mm/slab.h:201 [inline]
RIP: 0010:deactivate_slab+0x1f/0x370 mm/slub.c:3039
Code: 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 48 49 89 f7 65 48 8b 04 25 28 00 00 00 48 89 44 24 40 <48> 8b 06 48 83 f8 ff 0f 84 12 03 00 00 49 89 fd 48 c1 e8 3a 48 8b
RSP: 0018:ffffc9000421fa38 EFLAGS: 00010292
RAX: 99b20565c45f1100 RBX: 0000000000000202 RCX: ffffffff819d2aaa
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888032fedb40
RBP: 0000000000000000 R08: ffffffff94513877 R09: 1ffffffff28a270e
R10: dffffc0000000000 R11: fffffbfff28a270f R12: 0000607f47666250
R13: ffff88805d595a00 R14: ffff8880b8600000 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000002 CR3: 000000006166a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	55                   	push   %rbp
   c:	41 57                	push   %r15
   e:	41 56                	push   %r14
  10:	41 55                	push   %r13
  12:	41 54                	push   %r12
  14:	53                   	push   %rbx
  15:	48 83 ec 48          	sub    $0x48,%rsp
  19:	49 89 f7             	mov    %rsi,%r15
  1c:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
  23:	00 00
  25:	48 89 44 24 40       	mov    %rax,0x40(%rsp)
* 2a:	48 8b 06             	mov    (%rsi),%rax <-- trapping instruction
  2d:	48 83 f8 ff          	cmp    $0xffffffffffffffff,%rax
  31:	0f 84 12 03 00 00    	je     0x349
  37:	49 89 fd             	mov    %rdi,%r13
  3a:	48 c1 e8 3a          	shr    $0x3a,%rax
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b