do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Unable to handle kernel paging request at virtual address dfff800000000001
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000001] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 10738 Comm: syz-executor.5 Not tainted 6.1.43-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : _compound_head include/linux/page-flags.h:253 [inline]
pc : unlock_page+0x28/0x74 mm/folio-compat.c:20
lr : unlock_page+0x18/0x74 mm/folio-compat.c:19
sp : ffff80002bed6e00
x29: ffff80002bed6e00 x28: 0000000000000007 x27: 0000000000000000
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: 0000000000000001 x22: ffff0000d2567e08 x21: 00000000fffffff4
x20: 0000000000000008 x19: 0000000000000000 x18: 1fffe000368aa376
x17: 0000000000000000 x16: ffff8000084fc6b4 x15: 0000000000000000
x14: 0000000000000002 x13: 0000000000000001 x12: 0000000000040000
x11: 000000000001f274 x10: ffff8000227fa000 x9 : 0000000000000001
x8 : dfff800000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80002bed5fd8 x4 : ffff800015982b20 x3 : ffff80000967b268
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 _compound_head include/linux/page-flags.h:253 [inline]
 unlock_page+0x28/0x74 mm/folio-compat.c:20
 ni_readpage_cmpr+0x48c/0x7b4 fs/ntfs3/frecord.c:2148
 ntfs_read_folio+0x14c/0x1c0 fs/ntfs3/inode.c:723
 filemap_read_folio+0x14c/0x39c mm/filemap.c:2407
 filemap_fault+0xa58/0xf7c mm/filemap.c:3221
 __do_fault+0x11c/0x3d8 mm/memory.c:4231
 do_read_fault mm/memory.c:4582 [inline]
 do_fault mm/memory.c:4711 [inline]
 handle_pte_fault mm/memory.c:4983 [inline]
 __handle_mm_fault mm/memory.c:5125 [inline]
 handle_mm_fault+0x1f68/0x3e9c mm/memory.c:5246
 __do_page_fault arch/arm64/mm/fault.c:499 [inline]
 do_page_fault+0x330/0x890 arch/arm64/mm/fault.c:583
 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:667
 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:803
 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367
 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427
 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:576
 fault_in_readable+0x254/0x5f0 mm/gup.c:1891
 fault_in_iov_iter_readable+0xcc/0x22c lib/iov_iter.c:356
 ntfs_compress_write+0xbe0/0x1738 fs/ntfs3/file.c:1018
 ntfs_file_write_iter+0x33c/0x580 fs/ntfs3/file.c:1163
 call_write_iter include/linux/fs.h:2205 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x610/0x914 fs/read_write.c:584
 ksys_write+0x15c/0x26c fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Code: d2d00008 91002274 f2fbffe8 d343fe89 (38686928) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d2d00008 	mov	x8, #0x800000000000        	// #140737488355328
   4:	91002274 	add	x20, x19, #0x8
   8:	f2fbffe8 	movk	x8, #0xdfff, lsl #48
   c:	d343fe89 	lsr	x9, x20, #3
* 10:	38686928 	ldrb	w8, [x9, x8] <-- trapping instruction