loop2: detected capacity change from 0 to 2304 ================================================================== BUG: KASAN: use-after-free in ntfs_attr_find+0x913/0xe10 fs/ntfs/attrib.c:597 Read of size 2 at addr ffff888091daa10a by task syz-executor.2/10633 CPU: 1 PID: 10633 Comm: syz-executor.2 Not tainted 6.0.0-rc7-syzkaller-00081-gc3e0e1e23c70 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x65/0x4b0 mm/kasan/report.c:317 print_report+0x108/0x220 mm/kasan/report.c:433 kasan_report+0xfb/0x130 mm/kasan/report.c:495 ntfs_attr_find+0x913/0xe10 fs/ntfs/attrib.c:597 ntfs_attr_lookup+0x4c3/0x2370 ntfs_read_inode_mount+0x99d/0x24d0 fs/ntfs/inode.c:2004 ntfs_fill_super+0x187a/0x2bf0 fs/ntfs/super.c:2855 mount_bdev+0x26c/0x3a0 fs/super.c:1400 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7d9d68bada Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7d9e869f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f7d9d68bada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f7d9e869fe0 RBP: 00007f7d9e86a020 R08: 00007f7d9e86a020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f7d9e869fe0 R15: 0000000020000a40 The buggy address belongs to the physical page: page:ffffea0002476a80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x91daa flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea0002476a88 ffffea0002476a88 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: ffff888091daa000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888091daa080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888091daa100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888091daa180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888091daa200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================