================================================================== BUG: KASAN: use-after-free in ntfs_attr_find+0xacd/0xc20 fs/ntfs/attrib.c:611 Read of size 2 at addr ffff88803ff1b0ca by task syz-executor.1/10487 CPU: 0 PID: 10487 Comm: syz-executor.1 Not tainted 4.14.296-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x191 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_attr_find+0xacd/0xc20 fs/ntfs/attrib.c:611 ntfs_attr_lookup+0xeca/0x1f30 fs/ntfs/attrib.c:1207 ntfs_read_locked_inode+0xa8d/0x51b0 fs/ntfs/inode.c:1031 ntfs_iget+0xfa/0x130 fs/ntfs/inode.c:190 load_and_init_mft_mirror fs/ntfs/super.c:1041 [inline] load_system_files fs/ntfs/super.c:1786 [inline] ntfs_fill_super+0xa5a/0x7180 fs/ntfs/super.c:2909 F2FS-fs (loop0): invalid crc value mount_bdev+0x2b3/0x360 fs/super.c:1134 F2FS-fs (loop0): Found nat_bits in checkpoint 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:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f645f613ada RSP: 002b:00007f645db84f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f645f613ada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f645db84fe0 RBP: 00007f645db85020 R08: 00007f645db85020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f645db84fe0 R15: 000000002007a5e0 The buggy address belongs to the page: page:ffffea0000ffc6c0 count:1 mapcount:1 mapping:ffff8880a32479b1 index:0x563c36589 flags: 0xfff00000040068(uptodate|lru|active|swapbacked) raw: 00fff00000040068 ffff8880a32479b1 0000000563c36589 0000000100000000 raw: ffffea0001021d60 ffffea000104bda0 0000000000000000 ffff88823b3288c0 page dumped because: kasan: bad access detected page->mem_cgroup:ffff88823b3288c0 Memory state around the buggy address: ffff88803ff1af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88803ff1b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88803ff1b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88803ff1b100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88803ff1b180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== tmpfs: No value for mount option 'fd0xffffffffffffffff'