diff --git a/share/man/man5/elf.5 b/share/man/man5/elf.5
--- a/share/man/man5/elf.5
+++ b/share/man/man5/elf.5
@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd July 25, 2022
+.Dd May 20, 2025
 .Dt ELF 5
 .Os
 .Sh NAME
@@ -1384,6 +1384,10 @@
 .It NT_FREEBSD_FCTL_WXNEEDED Pq Value: 0x08
 Indicate that the binary requires mappings that are simultaneously
 writeable and executable.
+.It NT_FREEBSD_FCTL_LA48 Pq Value: 0x10
+Request 48-bit linear address space on amd64.
+.It NT_FREEBSD_FCTL_LA57 Pq Value: 0x40
+Accept 57-bit linear address space on amd64.
 .El
 .El
 .Sh SEE ALSO