Unable to handle kernel paging request at virtual address dfff800000000008
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000008] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7892 Comm: syz.1.245 Not tainted 6.16.0-rc1-syzkaller-g39dfc971e42d #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfs_find_init+0x6c/0x1c8 fs/hfs/bfind.c:21
lr : hfs_find_init+0x30/0x1c8 fs/hfs/bfind.c:16
sp : ffff8000a0687270
x29: ffff8000a0687270 x28: ffff7000140d0e64 x27: 0000000000000004
x26: ffff0000c8a01b80 x25: 0000000000000008 x24: dfff800000000000
x23: 0000000000000004 x22: ffff8000a0687358 x21: 0000000000000040
x20: ffff8000a0687340 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff80009331f000 x16: ffff80008ae31308 x15: 0000000000000007
x14: 1ffff000140d0e68 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 000000000000fa88 x9 : ffff8000a502b000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff80009365ee48 x4 : 0000000000000000 x3 : 0000000000000030
x2 : 0000000000000008 x1 : ffff8000a0687340 x0 : ffff8000a0687350
Call trace:
 hfs_find_init+0x6c/0x1c8 fs/hfs/bfind.c:21 (P)
 hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
 hfs_get_block+0x3d4/0x9cc fs/hfs/extent.c:366
 block_read_full_folio+0x2ec/0x824 fs/buffer.c:2427
 hfs_read_folio+0x28/0x38 fs/hfs/inode.c:34
 filemap_read_folio+0xec/0x2f8 mm/filemap.c:2412
 do_read_cache_folio+0x364/0x5bc mm/filemap.c:3894
 do_read_cache_page mm/filemap.c:3960 [inline]
 read_cache_page+0x6c/0x160 mm/filemap.c:3969
 read_mapping_page include/linux/pagemap.h:966 [inline]
 hfs_btree_open+0x3fc/0x1020 fs/hfs/btree.c:78
 hfs_mdb_get+0xe6c/0x19bc fs/hfs/mdb.c:199
 hfs_fill_super+0x314/0x584 fs/hfs/super.c:337
 get_tree_bdev_flags+0x360/0x414 fs/super.c:1679
 get_tree_bdev+0x2c/0x3c fs/super.c:1702
 hfs_get_tree+0x28/0x38 fs/hfs/super.c:388
 vfs_get_tree+0x90/0x28c fs/super.c:1802
 do_new_mount+0x228/0x814 fs/namespace.c:3885
 path_mount+0x5b4/0xde0 fs/namespace.c:4209
 do_mount fs/namespace.c:4222 [inline]
 __do_sys_mount fs/namespace.c:4433 [inline]
 __se_sys_mount fs/namespace.c:4410 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4410
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 97e5f1cc 91010275 f90002df d343feb9 (38f86b28) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97e5f1cc 	bl	0xffffffffff97c730
   4:	91010275 	add	x21, x19, #0x40
   8:	f90002df 	str	xzr, [x22]
   c:	d343feb9 	lsr	x25, x21, #3
* 10:	38f86b28 	ldrsb	w8, [x25, x24] <-- trapping instruction