__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
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, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000001] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 7376 Comm: syz-executor.1 Not tainted 6.5.0-rc4-syzkaller-g86d7896480b0 #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:245 [inline]
pc : unlock_page+0x28/0x74 mm/folio-compat.c:21
lr : unlock_page+0x18/0x74 mm/folio-compat.c:20
sp : ffff80009b177380
x29: ffff80009b177380 x28: 0000000000000007 x27: 00000000fffffff4
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: ffff0000c8441308 x22: 0000000000000001 x21: dfff800000000000
x20: 0000000000000008 x19: 0000000000000000 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff800080517cd4 x15: 0000000000000001
x14: 1fffff80009c4e10 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000040000 x10: 0000000000015328 x9 : 0000000000000001
x8 : dfff800000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80009b176698 x4 : ffff80008e17ef80 x3 : ffff8000816eb6f4
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 _compound_head include/linux/page-flags.h:245 [inline]
 unlock_page+0x28/0x74 mm/folio-compat.c:21
 ni_readpage_cmpr+0x474/0x798 fs/ntfs3/frecord.c:2153
 ntfs_read_folio+0x14c/0x1c0 fs/ntfs3/inode.c:716
 filemap_read_folio+0x14c/0x39c mm/filemap.c:2389
 filemap_create_folio mm/filemap.c:2517 [inline]
 filemap_get_pages+0xb3c/0x1640 mm/filemap.c:2570
 filemap_read+0x318/0xc58 mm/filemap.c:2658
 generic_file_read_iter+0xa0/0x458 mm/filemap.c:2837
 ntfs_file_read_iter+0x184/0x1e0 fs/ntfs3/file.c:744
 call_read_iter include/linux/fs.h:1865 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x5d0/0x8d4 fs/read_write.c:470
 ksys_read+0x15c/0x26c fs/read_write.c:613
 __do_sys_read fs/read_write.c:623 [inline]
 __se_sys_read fs/read_write.c:621 [inline]
 __arm64_sys_read+0x7c/0x90 fs/read_write.c:621
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
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