loop6: detected capacity change from 0 to 4096 ntfs: (device loop6): parse_options(): Invalid mft_zone_multiplier. Using default value, i.e. 1. ------------[ cut here ]------------ kernel BUG at fs/ntfs/aops.c:186! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6684 Comm: syz.6.449 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:ntfs_read_block fs/ntfs/aops.c:186 [inline] RIP: 0010:ntfs_readpage+0x2252/0x2260 fs/ntfs/aops.c:435 Code: fe e9 fe 0f 0b e8 be fe e9 fe 48 ff cb 48 89 5c 24 08 48 8b 7c 24 08 48 c7 c6 e0 02 5b 8a e8 35 e9 1c ff 0f 0b e8 9e fe e9 fe <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 41 55 41 RSP: 0018:ffffc90002faf740 EFLAGS: 00010283 RAX: ffffffff828f35f2 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000ca49000 RSI: 0000000000005837 RDI: 0000000000005838 RBP: ffffc90002faf8f0 R08: ffff888072611917 R09: 1ffff1100e4c2322 R10: dffffc0000000000 R11: ffffed100e4c2323 R12: ffffea00017789c0 R13: ffff888072611be0 R14: dffffc0000000000 R15: ffff888076995800 FS: 00007fc7719726c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f4255f4e8 CR3: 00000000614ed000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_read_cache_page+0x8a1/0x1030 mm/filemap.c:-1 read_mapping_page include/linux/pagemap.h:515 [inline] ntfs_map_page+0x24/0x390 fs/ntfs/aops.h:75 map_mft_record_page fs/ntfs/mft.c:73 [inline] map_mft_record+0x1c9/0x620 fs/ntfs/mft.c:156 ntfs_read_locked_inode+0x1ae/0x4de0 fs/ntfs/inode.c:550 ntfs_read_inode_mount+0xd46/0x25d0 fs/ntfs/inode.c:2098 ntfs_fill_super+0x18af/0x2c90 fs/ntfs/super.c:2857 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fc77371a04a Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc771971e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc771971ee0 RCX: 00007fc77371a04a RDX: 0000200000000080 RSI: 0000200000000340 RDI: 00007fc771971ea0 RBP: 0000200000000080 R08: 00007fc771971ee0 R09: 0000000000000804 R10: 0000000000000804 R11: 0000000000000246 R12: 0000200000000340 R13: 00007fc771971ea0 R14: 000000000001ee5b R15: 0000200000000540 Modules linked in: ---[ end trace 3ebc026549931ec0 ]--- RIP: 0010:ntfs_read_block fs/ntfs/aops.c:186 [inline] RIP: 0010:ntfs_readpage+0x2252/0x2260 fs/ntfs/aops.c:435 Code: fe e9 fe 0f 0b e8 be fe e9 fe 48 ff cb 48 89 5c 24 08 48 8b 7c 24 08 48 c7 c6 e0 02 5b 8a e8 35 e9 1c ff 0f 0b e8 9e fe e9 fe <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 41 55 41 RSP: 0018:ffffc90002faf740 EFLAGS: 00010283 RAX: ffffffff828f35f2 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000ca49000 RSI: 0000000000005837 RDI: 0000000000005838 RBP: ffffc90002faf8f0 R08: ffff888072611917 R09: 1ffff1100e4c2322 R10: dffffc0000000000 R11: ffffed100e4c2323 R12: ffffea00017789c0 R13: ffff888072611be0 R14: dffffc0000000000 R15: ffff888076995800 FS: 00007fc7719726c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007febd334de00 CR3: 00000000614ed000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400