ntfs3: loop4: Mark volume as dirty due to NTFS errors
ntfs3: loop4: Failed to load $Extend.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
  ESR = 0x0000000086000006
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000130650000
[0000000000000000] pgd=0800000111e3e003, p4d=0800000111e3e003, pud=080000012832a003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 7059 Comm: syz.4.615 Not tainted 5.15.182-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : set_page_dirty+0x23c/0x4f0 mm/page-writeback.c:2631
sp : ffff800020767670
x29: ffff800020767670 x28: 0000000000000000 x27: 0000000000000010
x26: 0000000000000000 x25: 1fffff80007b6539 x24: dfff800000000000
x23: 0000000000000000 x22: 05ffc00000000007 x21: ffff0000fb20e458
x20: ffff8000115eb338 x19: fffffc0003db29c0 x18: 0000000000000000
x17: ffff800016cdf000 x16: ffff8000111a53fc x15: ffff80000893073c
x14: 00000000ffff8000 x13: 1ffff0000282a06b x12: 0000000000080000
x11: 00000000000032d3 x10: ffff8000240ea000 x9 : ffff80000869e50c
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000094e1370
x2 : 0000000000000001 x1 : 0000000000000000 x0 : fffffc0003db29c0
Call trace:
 0x0
 ntfs_sparse_cluster+0x6e0/0x870 fs/ntfs3/file.c:337
 ntfs_fallocate+0x5d8/0xa68 fs/ntfs3/file.c:704
 vfs_fallocate+0x4a4/0x5f4 fs/open.c:308
 ioctl_preallocate+0x22c/0x2c8 fs/ioctl.c:294
 file_ioctl fs/ioctl.c:-1 [inline]
 do_vfs_ioctl+0x1a3c/0x2370 fs/ioctl.c:853
 __do_sys_ioctl fs/ioctl.c:872 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: bad PC value
---[ end trace 937e96077d136dcb ]---