ntfs: (device loop0): load_and_init_upcase(): Failed to load $UpCase from the volume. Using default. ================================================================== BUG: KASAN: use-after-free in ntfs_read_locked_inode+0x425a/0x5000 fs/ntfs/inode.c:677 Read of size 8 at addr ffff8880805b06cd by task syz-executor128/6394 CPU: 1 PID: 6394 Comm: syz-executor128 Not tainted 4.14.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x194 mm/kasan/report.c:351 kasan_report mm/kasan/report.c:409 [inline] __asan_report_load_n_noabort+0x6b/0x80 mm/kasan/report.c:440 ntfs_read_locked_inode+0x425a/0x5000 fs/ntfs/inode.c:677 ntfs_iget+0xfa/0x130 fs/ntfs/inode.c:190 load_and_init_attrdef fs/ntfs/super.c:1603 [inline] load_system_files fs/ntfs/super.c:1831 [inline] ntfs_fill_super+0x1ffb/0x7170 fs/ntfs/super.c:2908 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x44954a RSP: 002b:00007fff08421368 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fff084213c0 RCX: 000000000044954a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff08421380 RBP: 00007fff08421380 R08: 00007fff084213c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000287 R12: 00000000000000ac R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 The buggy address belongs to the page: page:ffffea0002016c00 count:0 mapcount:0 mapping: (null) index:0x1 flags: 0xfffe0000000000() raw: 00fffe0000000000 0000000000000000 0000000000000001 00000000ffffffff raw: ffffea0002017920 ffffea00020c7b20 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880805b0580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880805b0600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff8880805b0680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8880805b0700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880805b0780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================