ntfs: (device loop0): ntfs_external_attr_find(): Base inode 0xa contains corrupt attribute list attribute. Unmount and run chkdsk. ntfs: (device loop0): ntfs_read_locked_inode(): Failed to lookup $DATA attribute. 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. ================================================================== BUG: KASAN: use-after-free in ntfs_readpage+0x84e/0x2220 fs/ntfs/aops.c:488 Read of size 1 at addr ffff88806e55617f by task syz-executor.0/4505 CPU: 0 PID: 4505 Comm: syz-executor.0 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 print_address_description+0x60/0x2d0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xdf/0x130 mm/kasan/report.c:451 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x27b/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ntfs_readpage+0x84e/0x2220 fs/ntfs/aops.c:488 do_read_cache_page+0x8a1/0x1030 mm/filemap.c:-1 read_mapping_page include/linux/pagemap.h:515 [inline] ntfs_map_page+0x24/0x390 fs/ntfs/aops.h:75 load_and_init_attrdef fs/ntfs/super.c:1609 [inline] load_system_files+0x2299/0x5560 fs/ntfs/super.c:1817 ntfs_fill_super+0x19e0/0x2c90 fs/ntfs/super.c:2894 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3014 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa596ab305a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa595e32ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fa595e32f80 RCX: 00007fa596ab305a RDX: 0000000020000040 RSI: 000000002001f200 RDI: 00007fa595e32f40 RBP: 0000000020000040 R08: 00007fa595e32f80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000002001f200 R13: 00007fa595e32f40 R14: 000000000000097e R15: 0000000020000000 The buggy address belongs to the page: page:ffffea0001b95580 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x6e556 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea0001b94bc8 ffffea0001bfe388 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 0x1100cca(GFP_HIGHUSER_MOVABLE), pid 4507, ts 84678341732, free_ts 84703493872 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192 __alloc_pages+0x1e1/0x470 mm/page_alloc.c:5466 alloc_pages_vma+0x393/0x7c0 mm/mempolicy.c:2146 wp_page_copy+0x235/0x1fd0 mm/memory.c:3056 handle_pte_fault mm/memory.c:4668 [inline] __handle_mm_fault mm/memory.c:4785 [inline] handle_mm_fault+0x1eca/0x43c0 mm/memory.c:4883 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357 handle_page_fault arch/x86/mm/fault.c:1445 [inline] exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317 free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433 release_pages+0x184b/0x1bb0 mm/swap.c:963 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338 exit_mmap+0x3a6/0x5f0 mm/mmap.c:3206 __mmput+0x115/0x3b0 kernel/fork.c:1127 exit_mm+0x567/0x6c0 kernel/exit.c:550 do_exit+0x599/0x20a0 kernel/exit.c:861 do_group_exit+0x12e/0x300 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Memory state around the buggy address: ffff88806e556000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88806e556080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88806e556100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88806e556180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88806e556200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================