loop0: detected capacity change from 0 to 190 ================================================================== BUG: KASAN: use-after-free in ntfs_read_folio+0x66c/0x1c00 fs/ntfs/aops.c:483 Read of size 1 at addr ffff0000e2eec17f by task syz-executor.0/6586 CPU: 0 PID: 6586 Comm: syz-executor.0 Not tainted 6.7.0-rc8-syzkaller-00101-g0802e17d9aca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __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:364 [inline] print_report+0x174/0x514 mm/kasan/report.c:475 kasan_report+0xd8/0x138 mm/kasan/report.c:588 kasan_check_range+0x254/0x294 mm/kasan/generic.c:187 __asan_memcpy+0x3c/0x84 mm/kasan/shadow.c:105 ntfs_read_folio+0x66c/0x1c00 fs/ntfs/aops.c:483 filemap_read_folio+0x14c/0x39c mm/filemap.c:2323 do_read_cache_folio+0x114/0x548 mm/filemap.c:3700 do_read_cache_page mm/filemap.c:3766 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3775 read_mapping_page include/linux/pagemap.h:871 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] load_and_init_attrdef fs/ntfs/super.c:1617 [inline] load_system_files+0x1e34/0x4734 fs/ntfs/super.c:1825 ntfs_fill_super+0x14e0/0x2314 fs/ntfs/super.c:2900 mount_bdev+0x1e8/0x2b4 fs/super.c:1650 ntfs_mount+0x44/0x58 fs/ntfs/super.c:3057 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662 vfs_get_tree+0x90/0x288 fs/super.c:1771 do_new_mount+0x25c/0x8c8 fs/namespace.c:3337 path_mount+0x590/0xe04 fs/namespace.c:3664 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount fs/namespace.c:3863 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3863 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 The buggy address belongs to the physical page: page:000000004dc7c9cf refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x122eec flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 05ffc00000000000 fffffc00038bbb48 fffffc00038bbac8 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000e2eec000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff0000e2eec080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff0000e2eec100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff0000e2eec180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff0000e2eec200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== ntfs: volume version 3.1. syz-executor.0: attempt to access beyond end of device loop0: rw=0, sector=2072, nr_sectors = 8 limit=190 syz-executor.0: attempt to access beyond end of device loop0: rw=0, sector=552, nr_sectors = 8 limit=190 syz-executor.0: attempt to access beyond end of device loop0: rw=0, sector=224, nr_sectors = 8 limit=190