BUG: unable to handle page fault for address: fffffbfff2b36b63
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffe4067 P4D 23ffe4067 PUD 23ffe3067 PMD 0 
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 19 Comm: rcu_exp_gp_kthr Not tainted 6.10.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc900001877e0 EFLAGS: 00010086
RAX: 0000000000541a01 RBX: 1ffffffff2b36b63 RCX: ffffffff81727a0d
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff959b5b18
RBP: ffffffffffffffff R08: ffffffff959b5b1f R09: 1ffffffff2b36b63
R10: dffffc0000000000 R11: fffffbfff2b36b63 R12: 0000000000000001
R13: ffff8880176cbc00 R14: dffffc0000000001 R15: fffffbfff2b36b64
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff2b36b63 CR3: 000000005c096000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 __lock_acquire+0xc5d/0x1fd0 kernel/locking/lockdep.c:5107
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:567
 raw_spin_rq_lock kernel/sched/sched.h:1406 [inline]
 rq_lock kernel/sched/sched.h:1702 [inline]
 ttwu_queue kernel/sched/core.c:4055 [inline]
 try_to_wake_up+0x7cc/0x1470 kernel/sched/core.c:4378
 autoremove_wake_function+0x16/0x110 kernel/sched/wait.c:384
 __wake_up_common kernel/sched/wait.c:89 [inline]
 __wake_up_common_lock+0x132/0x1e0 kernel/sched/wait.c:106
 rcu_exp_wait_wake kernel/rcu/tree_exp.h:659 [inline]
 rcu_exp_sel_wait_wake+0x18ac/0x1db0 kernel/rcu/tree_exp.h:675
 kthread_worker_fn+0x502/0xaf0 kernel/kthread.c:842
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/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: fffffbfff2b36b63
---[ end trace 0000000000000000 ]---
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc900001877e0 EFLAGS: 00010086
RAX: 0000000000541a01 RBX: 1ffffffff2b36b63 RCX: ffffffff81727a0d
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff959b5b18
RBP: ffffffffffffffff R08: ffffffff959b5b1f R09: 1ffffffff2b36b63
R10: dffffc0000000000 R11: fffffbfff2b36b63 R12: 0000000000000001
R13: ffff8880176cbc00 R14: dffffc0000000001 R15: fffffbfff2b36b64
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff2b36b63 CR3: 000000005c096000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 7 bytes skipped:
   0:	df 4f 8d             	fisttps -0x73(%rdi)
   3:	3c 31                	cmp    $0x31,%al
   5:	4c 89 fd             	mov    %r15,%rbp
   8:	4c 29 dd             	sub    %r11,%rbp
   b:	48 83 fd 10          	cmp    $0x10,%rbp
   f:	7f 29                	jg     0x3a
  11:	48 85 ed             	test   %rbp,%rbp
  14:	0f 84 3e 01 00 00    	je     0x158
  1a:	4c 89 cd             	mov    %r9,%rbp
  1d:	48 f7 d5             	not    %rbp
  20:	48 01 dd             	add    %rbx,%rbp
* 23:	41 80 3b 00          	cmpb   $0x0,(%r11) <-- trapping instruction
  27:	0f 85 c9 01 00 00    	jne    0x1f6
  2d:	49 ff c3             	inc    %r11
  30:	48 ff c5             	inc    %rbp
  33:	75 ee                	jne    0x23
  35:	e9                   	.byte 0xe9
  36:	1e                   	(bad)
  37:	01 00                	add    %eax,(%rax)