loop0: detected capacity change from 0 to 4095 ================================================================== BUG: KASAN: use-after-free in ntfs_attr_find+0xb88/0xce0 fs/ntfs/attrib.c:597 Read of size 2 at addr ffff88816ec9810b by task syz-executor305/3610 CPU: 0 PID: 3610 Comm: syz-executor305 Not tainted 6.0.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:317 [inline] print_report.cold+0x2ba/0x719 mm/kasan/report.c:433 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495 ntfs_attr_find+0xb88/0xce0 fs/ntfs/attrib.c:597 ntfs_attr_lookup+0x1056/0x2070 fs/ntfs/attrib.c:1193 ntfs_read_inode_mount+0x934/0x2580 fs/ntfs/inode.c:2004 ntfs_fill_super+0x17c7/0x9300 fs/ntfs/super.c:2854 mount_bdev+0x34d/0x410 fs/super.c:1400 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fbaf8bf67ea Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffef4243c18 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffef4243c70 RCX: 00007fbaf8bf67ea RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffef4243c30 RBP: 00007ffef4243c30 R08: 00007ffef4243c70 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 00000000200007a0 R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000003c The buggy address belongs to the physical page: page:ffffea0005bb2600 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16ec98 flags: 0x57ff00000000000(node=1|zone=2|lastcpupid=0x7ff) raw: 057ff00000000000 ffffea0005bb2608 ffffea0005bb2608 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner info is not present (never set?) Memory state around the buggy address: ffff88816ec98000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88816ec98080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88816ec98100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88816ec98180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88816ec98200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================