- Ensure that the computed MFT record size isn't negative or larger than maxphys before trying to read $Volume. - Guard against truncated records in volume metadata. - Ensure that the record length is large enough to contain the volume name. - Verify that the (UTF-16-encoded) volume name's length is a multiple of two. PR: 258833, 258914 MFC after: 2 weeks Sponsored by: The FreeBSD Foundation