ntfs3: loop0: Failed to load $Extend.
==================================================================
BUG: KASAN: use-after-free in hdr_find_e+0x255/0x580 fs/ntfs3/index.c:689
Read of size 2 at addr ffff88807929d820 by task syz-executor.0/19469

CPU: 0 PID: 19469 Comm: syz-executor.0 Not tainted 6.1.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 print_address_description+0x74/0x340 mm/kasan/report.c:284
 print_report+0x107/0x1f0 mm/kasan/report.c:395
 kasan_report+0xcd/0x100 mm/kasan/report.c:495
 hdr_find_e+0x255/0x580 fs/ntfs3/index.c:689
 indx_find+0x4ff/0xb20 fs/ntfs3/index.c:1085
 dir_search_u+0x161/0x320 fs/ntfs3/dir.c:254
 ntfs_lookup+0x112/0x1b0 fs/ntfs3/namei.c:83
 lookup_open fs/namei.c:3391 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x10e6/0x2df0 fs/namei.c:3710
 do_filp_open+0x264/0x4f0 fs/namei.c:3740
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1330
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f753448b639
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f753511d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f75345abf80 RCX: 00007f753448b639
RDX: 0000000000000000 RSI: 000000000014d27e RDI: 0000000020000180
RBP: 00007f75344e6ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf64a403f R14: 00007f753511d300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0001e4a740 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7929d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x152c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 5253, tgid 5253 (udevd), ts 456788016620, free_ts 456844432741
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4288
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5555
 folio_alloc+0x1a/0x50 mm/mempolicy.c:2295
 filemap_alloc_folio+0x7e/0x1c0 mm/filemap.c:971
 page_cache_ra_unbounded+0x212/0x820 mm/readahead.c:248
 do_page_cache_ra mm/readahead.c:300 [inline]
 force_page_cache_ra+0x2d6/0x340 mm/readahead.c:331
 page_cache_sync_readahead include/linux/pagemap.h:1213 [inline]
 filemap_get_pages+0x465/0x10d0 mm/filemap.c:2581
 filemap_read+0x3cf/0xea0 mm/filemap.c:2675
 blkdev_read_iter+0x3de/0x520 block/fops.c:598
 call_read_iter include/linux/fs.h:2185 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x7ac/0xbf0 fs/read_write.c:470
 ksys_read+0x177/0x2a0 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1509
 free_unref_page_prepare mm/page_alloc.c:3387 [inline]
 free_unref_page_list+0xb4/0x7b0 mm/page_alloc.c:3529
 release_pages+0x232a/0x25c0 mm/swap.c:1055
 __pagevec_release+0x7d/0xf0 mm/swap.c:1075
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 invalidate_mapping_pagevec+0x676/0x7c0 mm/truncate.c:543
 ntfs_loadlog_and_replay+0x377/0x5c0 fs/ntfs3/fsntfs.c:305
 ntfs_fill_super+0x2333/0x42a0 fs/ntfs3/super.c:1018
 get_tree_bdev+0x400/0x620 fs/super.c:1324
 vfs_get_tree+0x88/0x270 fs/super.c:1531
 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+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff88807929d700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88807929d780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88807929d800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                               ^
 ffff88807929d880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88807929d900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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