loop0: detected capacity change from 0 to 4096
==================================================================
BUG: KASAN: use-after-free in ntfs_read_folio+0x6b4/0x1d3c fs/ntfs/aops.c:489
Read of size 2560 at addr ffff0000f300f169 by task syz.0.20/4478

CPU: 1 PID: 4478 Comm: syz.0.20 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
Call trace:
 dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 print_address_description+0x88/0x218 mm/kasan/report.c:316
 print_report+0x50/0x68 mm/kasan/report.c:420
 kasan_report+0xa8/0xfc mm/kasan/report.c:524
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x258/0x290 mm/kasan/generic.c:189
 memcpy+0x48/0x90 mm/kasan/shadow.c:65
 ntfs_read_folio+0x6b4/0x1d3c fs/ntfs/aops.c:489
 filemap_read_folio+0x134/0x384 mm/filemap.c:2490
 do_read_cache_folio+0x24c/0x538 mm/filemap.c:3659
 do_read_cache_page mm/filemap.c:3701 [inline]
 read_cache_page+0x6c/0x184 mm/filemap.c:3710
 read_mapping_page include/linux/pagemap.h:793 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 load_and_init_attrdef fs/ntfs/super.c:1609 [inline]
 load_system_files+0x1d68/0x4928 fs/ntfs/super.c:1817
 ntfs_fill_super+0x154c/0x2350 fs/ntfs/super.c:2892
 mount_bdev+0x264/0x358 fs/super.c:1443
 ntfs_mount+0x44/0x58 fs/ntfs/super.c:3049
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632
 vfs_get_tree+0x90/0x274 fs/super.c:1573
 do_new_mount+0x228/0x810 fs/namespace.c:3078
 path_mount+0x5bc/0xe80 fs/namespace.c:3408
 do_mount fs/namespace.c:3421 [inline]
 __do_sys_mount fs/namespace.c:3629 [inline]
 __se_sys_mount fs/namespace.c:3606 [inline]
 __arm64_sys_mount+0x49c/0x59c fs/namespace.c:3606
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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:585

The buggy address belongs to the physical page:
page:000000005d9eed88 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x13300f
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffc0003cc6808 fffffc0003cc0388 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000f300f000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000f300f080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000f300f100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                          ^
 ffff0000f300f180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000f300f200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
ntfs: volume version 3.1.