loop0: detected capacity change from 0 to 4096 ================================================================== BUG: KASAN: use-after-free in ntfs_attr_find+0x5a0/0x9d0 fs/ntfs/attrib.c:609 Read of size 2 at addr ffff0000e1767152 by task syz-executor368/5949 CPU: 0 PID: 5949 Comm: syz-executor368 Not tainted 6.2.0-syzkaller-18300-g2ebd1fbb946d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:306 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:417 kasan_report+0xd4/0x130 mm/kasan/report.c:517 __asan_report_load_n_noabort+0x28/0x34 mm/kasan/report_generic.c:361 ntfs_attr_find+0x5a0/0x9d0 fs/ntfs/attrib.c:609 ntfs_attr_lookup+0x3dc/0x1cd8 ntfs_read_locked_attr_inode fs/ntfs/inode.c:1239 [inline] ntfs_attr_iget+0x3d4/0x1b40 fs/ntfs/inode.c:238 load_system_files+0x15c0/0x4734 fs/ntfs/super.c:1800 ntfs_fill_super+0x14e0/0x2314 fs/ntfs/super.c:2892 mount_bdev+0x26c/0x368 fs/super.c:1359 ntfs_mount+0x44/0x58 fs/ntfs/super.c:3049 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1489 do_new_mount+0x25c/0x8c8 fs/namespace.c:3145 path_mount+0x590/0xe58 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3674 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 The buggy address belongs to the physical page: page:0000000020a02593 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x121767 flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000000000 fffffc000385e488 fffffc00037d3d48 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000e1767000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff0000e1767080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff0000e1767100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff0000e1767180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff0000e1767200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================