BUG: kernel NULL pointer dereference, address: 00000000000000f0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 104acc067 P4D 104acc067 PUD 10a2b1067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 1874 Comm: syz-executor.0 Not tainted 6.6.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:__lock_acquire.constprop.0+0x2f2/0x540 kernel/locking/lockdep.c:5008
Code: 0a 48 83 f8 ff 0f 85 a1 01 00 00 0f b7 45 20 66 25 ff 1f 66 89 44 24 16 0f b6 45 22 83 e0 03 88 44 24 10 e9 6d fe ff ff 89 f0 <48> 8b 44 c7 08 48 85 c0 0f 85 68 fd ff ff e9 39 fd ff ff e8 a6 9a
RSP: 0018:ffffc90001717c70 EFLAGS: 00010097
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000e8
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810a279b00 R15: 0000000000000200
FS:  0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000f0 CR3: 0000000107aea000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5753 [inline]
 lock_acquire+0xab/0x180 kernel/locking/lockdep.c:5718
 down_write+0x29/0x90 kernel/locking/rwsem.c:1573
 __unmap_hugepage_range_final+0x28/0x150 mm/hugetlb.c:5445
 unmap_vmas+0x66/0xa0 mm/memory.c:1731
 exit_mmap+0xe7/0x3e0 mm/mmap.c:3230
 __mmput kernel/fork.c:1349 [inline]
 mmput+0x40/0x100 kernel/fork.c:1371
 exit_mm kernel/exit.c:567 [inline]
 do_exit+0x2e9/0xb90 kernel/exit.c:861
 __do_sys_exit kernel/exit.c:991 [inline]
 __se_sys_exit kernel/exit.c:989 [inline]
 __x64_sys_exit+0x16/0x20 kernel/exit.c:989
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd7670deae9
Code: Unable to access opcode bytes at 0x7fd7670deabf.
RSP: 002b:00007fd766c61078 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007fd7671fdf80 RCX: 00007fd7670deae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fd76712a47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007fd7671fdf80 R15: 00007ffdfd8ab528
 </TASK>
Modules linked in:
CR2: 00000000000000f0
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire.constprop.0+0x2f2/0x540 kernel/locking/lockdep.c:5008
Code: 0a 48 83 f8 ff 0f 85 a1 01 00 00 0f b7 45 20 66 25 ff 1f 66 89 44 24 16 0f b6 45 22 83 e0 03 88 44 24 10 e9 6d fe ff ff 89 f0 <48> 8b 44 c7 08 48 85 c0 0f 85 68 fd ff ff e9 39 fd ff ff e8 a6 9a
RSP: 0018:ffffc90001717c70 EFLAGS: 00010097

RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000e8
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810a279b00 R15: 0000000000000200
FS:  0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000f0 CR3: 0000000107aea000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	0a 48 83             	or     -0x7d(%rax),%cl
   3:	f8                   	clc
   4:	ff 0f                	decl   (%rdi)
   6:	85 a1 01 00 00 0f    	test   %esp,0xf000001(%rcx)
   c:	b7 45                	mov    $0x45,%bh
   e:	20 66 25             	and    %ah,0x25(%rsi)
  11:	ff 1f                	lcall  *(%rdi)
  13:	66 89 44 24 16       	mov    %ax,0x16(%rsp)
  18:	0f b6 45 22          	movzbl 0x22(%rbp),%eax
  1c:	83 e0 03             	and    $0x3,%eax
  1f:	88 44 24 10          	mov    %al,0x10(%rsp)
  23:	e9 6d fe ff ff       	jmp    0xfffffe95
  28:	89 f0                	mov    %esi,%eax
* 2a:	48 8b 44 c7 08       	mov    0x8(%rdi,%rax,8),%rax <-- trapping instruction
  2f:	48 85 c0             	test   %rax,%rax
  32:	0f 85 68 fd ff ff    	jne    0xfffffda0
  38:	e9 39 fd ff ff       	jmp    0xfffffd76
  3d:	e8                   	.byte 0xe8
  3e:	a6                   	cmpsb  %es:(%rdi),%ds:(%rsi)
  3f:	9a                   	(bad)