loop0: detected capacity change from 0 to 4096
==================================================================
BUG: KASAN: use-after-free in ntfs_attr_find+0x60c/0x9dc fs/ntfs/attrib.c:609
Read of size 2 at addr ffff0000ea747442 by task syz.0.15/5108

CPU: 1 PID: 5108 Comm: syz.0.15 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x78/0x30c mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xec/0x15c mm/kasan/report.c:451
 __asan_report_load_n_noabort+0x40/0x4c mm/kasan/report_generic.c:319
 ntfs_attr_find+0x60c/0x9dc fs/ntfs/attrib.c:609
 ntfs_attr_lookup+0x1e0/0x1b28 fs/ntfs/attrib.c:1213
 ntfs_read_locked_inode+0x85c/0x38b8 fs/ntfs/inode.c:666
 ntfs_iget+0xf8/0x184 fs/ntfs/inode.c:177
 load_and_init_mft_mirror fs/ntfs/super.c:1027 [inline]
 load_system_files+0xbc/0x3fb0 fs/ntfs/super.c:1772
 ntfs_fill_super+0x1640/0x24c4 fs/ntfs/super.c:2894
 mount_bdev+0x264/0x358 fs/super.c:1400
 ntfs_mount+0x44/0x58 fs/ntfs/super.c:3051
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3025
 path_mount+0x5b4/0x1000 fs/namespace.c:3355
 do_mount fs/namespace.c:3368 [inline]
 __do_sys_mount fs/namespace.c:3576 [inline]
 __se_sys_mount fs/namespace.c:3553 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3553
 __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

The buggy address belongs to the page:
page:00000000733e4db1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x12a747
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffc0003a9c708 fffffc0003a98e48 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000ea747300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000ea747380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000ea747400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                           ^
 ffff0000ea747480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000ea747500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
ntfs: (device loop0): ntfs_attr_find(): Inode is corrupt.  Run chkdsk.
ntfs: (device loop0): ntfs_read_locked_inode(): Failed to lookup attribute list attribute.
ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5.  Marking corrupt inode 0x1 as bad.  Run chkdsk.
ntfs: (device loop0): load_system_files(): Failed to load $MFTMirr.  Will not be able to remount read-write.  Run ntfsfix and/or chkdsk.
ntfs: (device loop0): map_mft_record_page(): Mft record 0xa is corrupt.  Run chkdsk.
ntfs: (device loop0): map_mft_record(): Failed with error code 5.
ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5.  Marking corrupt inode 0xa as bad.  Run chkdsk.
ntfs: (device loop0): load_and_init_upcase(): Failed to load $UpCase from the volume. Using default.
attempt to access beyond end of device
loop0: rw=0, want=32770, limit=4096
ntfs: (device loop0): ntfs_end_buffer_async_read(): Buffer I/O error, logical block 0x4000.
attempt to access beyond end of device
loop0: rw=0, want=32772, limit=4096
ntfs: (device loop0): ntfs_end_buffer_async_read(): Buffer I/O error, logical block 0x4001.
attempt to access beyond end of device
loop0: rw=0, want=32774, limit=4096