BUG: kernel NULL pointer dereference, address: 0000000000000001
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8000000057273067 P4D 8000000057273067 PUD 0 
Oops: Oops: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 31 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: slub_flushwq flush_cpu_slab
RIP: 0010:PagePoisoned include/linux/page-flags.h:335 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1516 [inline]
RIP: 0010:folio_nid include/linux/mm.h:1522 [inline]
RIP: 0010:slab_nid mm/slab.h:177 [inline]
RIP: 0010:__put_partials+0x28/0x1a0 mm/slub.c:3197
Code: 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 48 85 f6 0f 84 4a 01 00 00 49 89 f7 49 89 fe 48 c7 04 24 00 00 00 00 45 31 e4 <49> 8b 07 48 83 f8 ff 0f 84 40 01 00 00 49 8b 5f 10 48 c1 e8 3a 4d
RSP: 0018:ffffc90000a5fa38 EFLAGS: 00010246
RAX: c90b4a7c926c3000 RBX: ffffffff818b5a7f RCX: 0000000000000000
RDX: ffff88801cac5d80 RSI: 0000000000000001 RDI: ffff888035b64640
RBP: ffffc90000a5fc70 R08: ffffffff8f1d6237 R09: 1ffffffff1e3ac46
R10: dffffc0000000000 R11: fffffbfff1e3ac47 R12: 0000000000000000
R13: ffff88801c6ce318 R14: ffff888035b64640 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881269bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000001 CR3: 000000003a9aa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x436/0x7d0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
CR2: 0000000000000001
---[ end trace 0000000000000000 ]---
RIP: 0010:PagePoisoned include/linux/page-flags.h:335 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1516 [inline]
RIP: 0010:folio_nid include/linux/mm.h:1522 [inline]
RIP: 0010:slab_nid mm/slab.h:177 [inline]
RIP: 0010:__put_partials+0x28/0x1a0 mm/slub.c:3197
Code: 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 48 85 f6 0f 84 4a 01 00 00 49 89 f7 49 89 fe 48 c7 04 24 00 00 00 00 45 31 e4 <49> 8b 07 48 83 f8 ff 0f 84 40 01 00 00 49 8b 5f 10 48 c1 e8 3a 4d
RSP: 0018:ffffc90000a5fa38 EFLAGS: 00010246
RAX: c90b4a7c926c3000 RBX: ffffffff818b5a7f RCX: 0000000000000000
RDX: ffff88801cac5d80 RSI: 0000000000000001 RDI: ffff888035b64640
RBP: ffffc90000a5fc70 R08: ffffffff8f1d6237 R09: 1ffffffff1e3ac46
R10: dffffc0000000000 R11: fffffbfff1e3ac47 R12: 0000000000000000
R13: ffff88801c6ce318 R14: ffff888035b64640 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881269bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000001 CR3: 000000003a9aa000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	55                   	push   %rbp
   3:	41 57                	push   %r15
   5:	41 56                	push   %r14
   7:	41 55                	push   %r13
   9:	41 54                	push   %r12
   b:	53                   	push   %rbx
   c:	48 83 ec 10          	sub    $0x10,%rsp
  10:	48 85 f6             	test   %rsi,%rsi
  13:	0f 84 4a 01 00 00    	je     0x163
  19:	49 89 f7             	mov    %rsi,%r15
  1c:	49 89 fe             	mov    %rdi,%r14
  1f:	48 c7 04 24 00 00 00 	movq   $0x0,(%rsp)
  26:	00
  27:	45 31 e4             	xor    %r12d,%r12d
* 2a:	49 8b 07             	mov    (%r15),%rax <-- trapping instruction
  2d:	48 83 f8 ff          	cmp    $0xffffffffffffffff,%rax
  31:	0f 84 40 01 00 00    	je     0x177
  37:	49 8b 5f 10          	mov    0x10(%r15),%rbx
  3b:	48 c1 e8 3a          	shr    $0x3a,%rax
  3f:	4d                   	rex.WRB