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BUG: KASAN: use-after-free in ntfs_attr_find+0x913/0xe10 fs/ntfs/attrib.c:597
Read of size 2 at addr ffff88809abb591a by task syz-executor.2/21140

CPU: 0 PID: 21140 Comm: syz-executor.2 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x65/0x4b0 mm/kasan/report.c:317
 print_report+0x108/0x220 mm/kasan/report.c:433
 kasan_report+0xfb/0x130 mm/kasan/report.c:495
 ntfs_attr_find+0x913/0xe10 fs/ntfs/attrib.c:597
 ntfs_attr_lookup+0x4c3/0x2370
 ntfs_read_locked_inode+0xd4c/0x4680 fs/ntfs/inode.c:999
 ntfs_iget+0x10f/0x190 fs/ntfs/inode.c:177
 load_and_init_mft_mirror fs/ntfs/super.c:1027 [inline]
 load_system_files+0xf9/0x48d0 fs/ntfs/super.c:1772
 ntfs_fill_super+0x19a9/0x2bf0 fs/ntfs/super.c:2892
 mount_bdev+0x26c/0x3a0 fs/super.c:1400
 legacy_get_tree+0xea/0x180 fs/fs_context.c:610
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0f7708cada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0f781eaf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f0f7708cada
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f0f781eafe0
RBP: 00007f0f781eb020 R08: 00007f0f781eb020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f0f781eafe0 R15: 0000000020077ea0
 </TASK>

The buggy address belongs to the physical page:
page:ffffea00026aed40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x9abb5
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x141cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_WRITE), pid 20033, tgid 20026 (syz-executor.2), ts 527573998729, free_ts 527887785244
 prep_new_page mm/page_alloc.c:2532 [inline]
 get_page_from_freelist+0x72b/0x7a0 mm/page_alloc.c:4283
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549
 folio_alloc+0x1a/0x50 mm/mempolicy.c:2280
 filemap_alloc_folio+0x7e/0x1c0 mm/filemap.c:970
 __filemap_get_folio+0x86b/0x1230 mm/filemap.c:1970
 pagecache_get_page+0x2a/0x240 mm/folio-compat.c:104
 ext4_da_write_begin+0x50d/0x760 fs/ext4/inode.c:2995
 generic_perform_write+0x314/0x610 mm/filemap.c:3745
 ext4_buffered_write_iter+0x122/0x3a0 fs/ext4/file.c:285
 ext4_file_write_iter+0x1d0/0x18e0
 __kernel_write_iter+0x323/0x770 fs/read_write.c:517
 dump_emit_page+0xa79/0xca0 fs/coredump.c:857
 dump_user_range+0x5b/0xf0 fs/coredump.c:908
 elf_core_dump+0x3d5b/0x4570 fs/binfmt_elf.c:2311
 do_coredump+0x1854/0x2890 fs/coredump.c:755
 get_signal+0x147e/0x1810 kernel/signal.c:2844
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1449 [inline]
 free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1499
 free_unref_page_prepare mm/page_alloc.c:3380 [inline]
 free_unref_page_list+0xb4/0x7b0 mm/page_alloc.c:3522
 release_pages+0x22c3/0x2540 mm/swap.c:1012
 __pagevec_release+0x7d/0xf0 mm/swap.c:1032
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x4a2/0x17b0 mm/truncate.c:373
 ext4_evict_inode+0x3cb/0x1010 fs/ext4/inode.c:221
 evict+0x2a4/0x620 fs/inode.c:664
 do_unlinkat+0x532/0x9a0 fs/namei.c:4304
 __do_sys_unlink fs/namei.c:4345 [inline]
 __se_sys_unlink fs/namei.c:4343 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4343
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff88809abb5800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88809abb5880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88809abb5900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                            ^
 ffff88809abb5980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88809abb5a00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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