loop0: detected capacity change from 0 to 190
==================================================================
BUG: KASAN: use-after-free in ntfs_readpage+0x670/0x1d94 fs/ntfs/aops.c:488
Read of size 1 at addr ffff0000e18c717f by task syz-executor.0/4490

CPU: 0 PID: 4490 Comm: syz-executor.0 Not tainted 5.15.189-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
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x270/0x2b0 mm/kasan/generic.c:189
 memcpy+0x90/0xe8 mm/kasan/shadow.c:65
 ntfs_readpage+0x670/0x1d94 fs/ntfs/aops.c:488
 do_read_cache_page+0x5f4/0x8f8 mm/filemap.c:-1
 read_cache_page+0x68/0x88 mm/filemap.c:3574
 read_mapping_page include/linux/pagemap.h:515 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 load_and_init_attrdef fs/ntfs/super.c:1609 [inline]
 load_system_files+0x191c/0x3fb0 fs/ntfs/super.c:1817
 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:3014
 path_mount+0x5b4/0x1000 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __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:000000000281df8a refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x1218c7
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffc0003863088 fffffc0003859848 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000e18c7000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000e18c7080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000e18c7100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                                ^
 ffff0000e18c7180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000e18c7200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
ntfs: volume version 3.1.
attempt to access beyond end of device
loop0: rw=0, want=2080, limit=190
attempt to access beyond end of device
loop0: rw=0, want=560, limit=190
attempt to access beyond end of device
loop0: rw=0, want=232, limit=190