__ntfs_warning: 1 callbacks suppressed ntfs: (device loop4): is_boot_sector_ntfs(): Invalid boot sector checksum. ntfs: (device loop4): is_boot_sector_ntfs(): Invalid end of sector marker. BUG: unable to handle kernel paging request at ffffed1018ee9582 IP: ntfs_attr_find+0x213/0xc20 fs/ntfs/attrib.c:611 PGD 23fff2067 P4D 23fff2067 PUD 13fff6067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 10045 Comm: syz-executor.4 Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 task: ffff88809df10600 task.stack: ffff888063608000 RIP: 0010:ntfs_attr_find+0x213/0xc20 fs/ntfs/attrib.c:611 RSP: 0018:ffff88806360f8a0 EFLAGS: 00010a06 RAX: 1ffff11018ee9582 RBX: ffff8880c774ac08 RCX: ffff8880c774ac13 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffff88809c74aac0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000400 R13: ffff8880c774ac13 R14: 0000000000000000 R15: ffff88809d726200 FS: 00007fc2da1dc700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1018ee9582 CR3: 00000000a2588000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ntfs_attr_lookup+0xeca/0x1f30 fs/ntfs/attrib.c:1207 ntfs_read_inode_mount+0x7b1/0x2060 fs/ntfs/inode.c:2038 ntfs_fill_super+0x9a6/0x7170 fs/ntfs/super.c:2871 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: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: 0033:0x7fc2db869ada RSP: 002b:00007fc2da1dbf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fc2db869ada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc2da1dbfe0 RBP: 00007fc2da1dc020 R08: 00007fc2da1dc020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fc2da1dbfe0 R15: 00000000200767a0 Code: 08 00 00 48 8d 7b 0a 44 8b 65 1c 48 ba 00 00 00 00 00 fc ff df 4c 8d 6b 0b 48 89 f8 48 89 7c 24 10 83 e7 07 48 c1 e8 03 4c 89 e9 <0f> b6 04 10 48 c1 e9 03 49 01 ec 0f b6 14 11 40 38 f8 0f 9e c1 RIP: ntfs_attr_find+0x213/0xc20 fs/ntfs/attrib.c:611 RSP: ffff88806360f8a0 CR2: ffffed1018ee9582 ---[ end trace e0988fca37b4236f ]--- ---------------- Code disassembly (best guess): 0: 08 00 or %al,(%rax) 2: 00 48 8d add %cl,-0x73(%rax) 5: 7b 0a jnp 0x11 7: 44 8b 65 1c mov 0x1c(%rbp),%r12d b: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 12: fc ff df 15: 4c 8d 6b 0b lea 0xb(%rbx),%r13 19: 48 89 f8 mov %rdi,%rax 1c: 48 89 7c 24 10 mov %rdi,0x10(%rsp) 21: 83 e7 07 and $0x7,%edi 24: 48 c1 e8 03 shr $0x3,%rax 28: 4c 89 e9 mov %r13,%rcx * 2b: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax <-- trapping instruction 2f: 48 c1 e9 03 shr $0x3,%rcx 33: 49 01 ec add %rbp,%r12 36: 0f b6 14 11 movzbl (%rcx,%rdx,1),%edx 3a: 40 38 f8 cmp %dil,%al 3d: 0f 9e c1 setle %cl